nice

imgui.ini

@@ -0,0 +1,16 @@
+[Window][Debug##Default]
+Pos=20,60
+Size=400,400
+
+[Window][Dear ImGui Demo]
+Pos=1116,220
+Size=927,695
+
+[Window][Dear ImGui Debug Log]
+Pos=60,60
+Size=670,354
+
+[Window][Example: Console]
+Pos=958,210
+Size=520,600
+

include/td/Maths.h

@@ -0,0 +1,183 @@
+#pragma once
+
+#include <cstdint>
+
+namespace td {
+
+static constexpr float PI = 3.141592653f;
+
+template <typename T>
+struct Vec2 {
+	union {
+		T x;
+		T r;
+	};
+
+	union {
+		T y;
+		T g;
+	};
+
+	constexpr Vec2(T X = 0, T Y = 0) : x(X), y(Y) {}
+};
+
+template <typename T>
+inline bool operator==(const Vec2<T>& vec2, const Vec2<T>& other) {
+	return vec2.x == other.x && vec2.y == other.y;
+}
+
+template <typename T>
+struct Vec3 {
+	union {
+		T x;
+		T r;
+	};
+
+	union {
+		T y;
+		T g;
+	};
+
+	union {
+		T z;
+		T b;
+	};
+
+	constexpr Vec3(T X = 0, T Y = 0, T Z = 0) : x(X), y(Y), z(Z) {}
+};
+
+template <typename T>
+inline bool operator==(const Vec3<T>& vec3, const Vec3<T>& other) {
+	return vec3.x == other.x && vec3.y == other.y && vec3.z == other.z;
+}
+
+template <typename T>
+struct Vec4 {
+	union {
+		T x;
+		T r;
+	};
+
+	union {
+		T y;
+		T g;
+	};
+
+	union {
+		T z;
+		T b;
+	};
+
+	union {
+		T w;
+		T a;
+	};
+
+	constexpr Vec4(Vec3<T> vec, T W = 1) : x(vec.x), y(vec.y), z(vec.z), w(W) {}
+	constexpr Vec4(T X = 0, T Y = 0, T Z = 0, T W = 0) : x(X), y(Y), z(Z), w(W) {}
+};
+
+template <typename T>
+inline bool operator==(const Vec4<T>& vec4, const Vec4<T>& other) {
+	return vec4.x == other.x && vec4.y == other.y && vec4.z == other.z && vec4.w = other.w;
+}
+
+using Vec2i = Vec2<int>;
+using Vec2u = Vec2<unsigned int>;
+using Vec2f = Vec2<float>;
+using Vec2d = Vec2<double>;
+
+using Vec3i = Vec3<int>;
+using Vec3u = Vec3<unsigned int>;
+using Vec3f = Vec3<float>;
+using Vec3d = Vec3<double>;
+
+using Vec4i = Vec4<int>;
+using Vec4u = Vec4<unsigned int>;
+using Vec4f = Vec4<float>;
+using Vec4d = Vec4<double>;
+
+using Color = Vec3<unsigned char>;
+
+template <typename T>
+struct Mat4 {
+	static const std::size_t MATRIX_SIZE = 4;
+
+	T x0, x1, x2, x3;
+	T y0, y1, y2, y3;
+	T z0, z1, z2, z3;
+	T w0, w1, w2, w3;
+
+	T operator[](std::size_t offset) const {
+		return reinterpret_cast<const T*>(this)[offset];
+	}
+
+	T& operator[](std::size_t offset) {
+		return reinterpret_cast<T*>(this)[offset];
+	}
+
+	T* data() {
+		return reinterpret_cast<T*>(this);
+	}
+
+	const T* data() const {
+		return reinterpret_cast<const T*>(this);
+	}
+
+	T at(std::size_t row, std::size_t column) const {
+		return operator[](row * MATRIX_SIZE + column);
+	}
+
+	T& at(std::size_t row, std::size_t column) {
+		return operator[](row * MATRIX_SIZE + column);
+	}
+};
+
+typedef Mat4<float> Mat4f;
+typedef Mat4<int> Mat4i;
+typedef Mat4<double> Mat4d;
+
+template <typename T>
+inline bool operator==(const Mat4<T>& mat, const Mat4<T>& other) {
+	return mat.x0 == other.x0 && mat.y0 == other.y0 && mat.z0 == other.z0 && mat.w0 == other.w0 && mat.x1 == other.x1 &&
+		   mat.y1 == other.y1 && mat.z1 == other.z1 && mat.w1 == other.w1 && mat.x2 == other.x2 && mat.y2 == other.y2 &&
+		   mat.z2 == other.z2 && mat.w2 == other.w2 && mat.x3 == other.x3 && mat.y3 == other.y3 && mat.z3 == other.z3 &&
+		   mat.w3 == other.w3;
+}
+
+namespace maths {
+
+template<typename T>
+Mat4<T> Transpose(const Mat4<T>& mat) {
+	Mat4<T> result;
+
+	result.x1 = mat.y0;
+	result.x2 = mat.z0;
+	result.x3 = mat.w0;
+	result.y0 = mat.x1;
+	result.y2 = mat.z1;
+	result.y3 = mat.w1;
+	result.z0 = mat.x2;
+	result.z1 = mat.y2;
+	result.z3 = mat.w2;
+	result.w0 = mat.x3;
+	result.w1 = mat.y3;
+	result.w2 = mat.z3;
+	result.x0 = mat.x0;
+	result.y1 = mat.y1;
+	result.z2 = mat.z2;
+	result.w3 = mat.w3;
+
+	return result;
+}
+
+Mat4f Perspective(float fovY, float aspectRatio, float zNear, float zFar);
+Mat4f Look(const Vec3f& eye, const Vec3f& center, const Vec3f& up);
+
+Mat4f Inverse(const Mat4f& mat);
+
+}  // namespace maths
+
+
+
+}  // namespace td

include/td/Types.h

@@ -7,8 +7,9 @@ namespace td {
 
 using FpFloat = fpm::fixed_16_16;
 
-enum class Team : std::uint8_t {
-	Blue = 0,
+enum class TeamColor : std::int8_t {
+	None = -1,
+	Blue,
 	Red,
 };
 
@@ -67,4 +68,11 @@ struct EntityCoords {
 
 using PeerID = std::uint16_t;
 
+enum class Direction : std::uint8_t {
+	PositiveX = 1 << 0,
+	NegativeX = 1 << 1,
+	PositiveY = 1 << 2,
+	NegativeY = 1 << 3,
+};
+
 }  // namespace td

include/td/common/DataBuffer.h

@@ -1,300 +0,0 @@
-#pragma once
-
-/**
- * \file DataBuffer.h
- * \brief File containing the td::DataBuffer class
- */
-
-#include <algorithm>
-#include <array>
-#include <cassert>
-#include <cstdint>
-#include <cstring>
-#include <string>
-#include <td/common/VarInt.h>
-#include <vector>
-
-namespace td {
-
-/**
- * \class DataBuffer
- * \brief Class used to manipulate memory
- */
-class DataBuffer {
-  private:
-	typedef std::vector<std::uint8_t> Data;
-	Data m_Buffer;
-	std::size_t m_ReadOffset;
-
-  public:
-	typedef Data::iterator iterator;
-	typedef Data::const_iterator const_iterator;
-	typedef Data::reference reference;
-	typedef Data::const_reference const_reference;
-	typedef Data::difference_type difference_type;
-
-	DataBuffer();
-	DataBuffer(const DataBuffer& other);
-	DataBuffer(const DataBuffer& other, difference_type offset);
-	DataBuffer(DataBuffer&& other);
-	DataBuffer(const std::string& str);
-
-	DataBuffer& operator=(const DataBuffer& other);
-	DataBuffer& operator=(DataBuffer&& other);
-
-	/**
-	 * \brief Append data to the buffer
-	 */
-	template <typename T>
-	void Append(const T& data) {
-		std::size_t size = sizeof(data);
-		std::size_t end_pos = m_Buffer.size();
-		m_Buffer.resize(m_Buffer.size() + size);
-		std::memcpy(&m_Buffer[end_pos], &data, size);
-	}
-
-	/**
-	 * \brief Append data to the buffer
-	 */
-	template <typename T>
-	DataBuffer& operator<<(const T& data) {
-		Append(data);
-		return *this;
-	}
-
-	/**
-	 * \brief Append a string to the buffer
-	 * \warning Don't use it for binary data !
-	 * \param str The string to append
-	 */
-	DataBuffer& operator<<(const std::string& str);
-
-	/**
-	 * \brief Append data to the buffer from another const buffer
-	 * \param data The buffer to append
-	 */
-	DataBuffer& operator<<(const DataBuffer& data);
-
-	/**
-	 * \brief Append a vector to the buffer by first writing the size
-	 * \param data The vector to append
-	 */
-	template <typename T>
-	DataBuffer& operator<<(const std::vector<T>& data) {
-		*this << VarInt{data.size()};
-		for (const auto& element : data) {
-			*this << element;
-		}
-		return *this;
-	}
-
-	/**
-	 * \brief Append an array to the buffer by first writing the size
-	 * \param data The buffer to append
-	 */
-	template <typename T, std::size_t Size>
-	DataBuffer& operator<<(const std::array<T, Size>& data) {
-		for (const auto& element : data) {
-			*this << element;
-		}
-		return *this;
-	}
-
-	/**
-	 * \brief Read some data from the buffer and assign to desired variable
-	 */
-	template <typename T>
-	DataBuffer& operator>>(T& data) {
-		assert(m_ReadOffset + sizeof(T) <= GetSize());
-		data = *(reinterpret_cast<T*>(&m_Buffer[m_ReadOffset]));
-		m_ReadOffset += sizeof(T);
-		return *this;
-	}
-
-	/**
-	 * \brief Read some data from the buffer and assign to the new buffer
-	 * \param data The buffer to assign
-	 */
-	DataBuffer& operator>>(DataBuffer& data);
-
-	/**
-	 * \brief Read a string from the buffer
-	 * \param str The string to assign in the new buffer
-	 * \warning Don't use it for binary data !
-	 */
-	DataBuffer& operator>>(std::string& str);
-
-	/**
-	 * \brief Read a vector (size + data) from the buffer
-	 * \pre The vector is assumed to be empty
-	 */
-	template <typename T>
-	DataBuffer& operator>>(std::vector<T>& data) {
-		VarInt arraySize;
-		*this >> arraySize;
-		for (std::size_t i = 0; i < arraySize.GetValue(); i++) {
-			T newElement;
-			*this >> newElement;
-			data.push_back(newElement);
-		}
-		return *this;
-	}
-
-	/**
-	 * \brief Read an array from the buffer
-	 */
-	template <std::size_t Size, typename T>
-	DataBuffer& operator>>(std::array<T, Size>& data) {
-		for (std::size_t i = 0; i < Size; i++) {
-			T newElement;
-			*this >> newElement;
-			data[i] = newElement;
-		}
-		return *this;
-	}
-
-	/**
-	 * \brief Write some data to the buffer
-	 * \param buffer The buffer to write
-	 * \param amount The amount of data to write
-	 */
-	void WriteSome(const char* buffer, std::size_t amount);
-
-	/**
-	 * \brief Write some data to the buffer
-	 * \param buffer The buffer to write
-	 * \param amount The amount of data to write
-	 */
-	void WriteSome(const std::uint8_t* buffer, std::size_t amount);
-
-	/**
-	 * \brief Read some data from the buffer
-	 * \param buffer The buffer to Read
-	 * \param amount The amount of data from the buffer
-	 */
-	void ReadSome(char* buffer, std::size_t amount);
-
-	/**
-	 * \brief Read some data from the buffer
-	 * \param buffer The buffer to Read
-	 * \param amount The amount of data from the buffer
-	 */
-	void ReadSome(std::uint8_t* buffer, std::size_t amount);
-
-	/**
-	 * \brief Read some data from the buffer
-	 * \param buffer The buffer to Read
-	 * \param amount The amount of data from the buffer
-	 */
-	void ReadSome(DataBuffer& buffer, std::size_t amount);
-
-	/**
-	 * \brief Resize the buffer
-	 * \param size The new size of the buffer
-	 */
-	void Resize(std::size_t size) {
-		m_Buffer.resize(size);
-	}
-
-	/**
-	 * \brief Reserve some space in the buffer
-	 * \param amount The amount of space to reserve
-	 */
-	void Reserve(std::size_t amount) {
-		m_Buffer.reserve(amount);
-	}
-
-
-	/**
-	 * \brief Clear the buffer
-	 */
-	void Clear() {
-		m_Buffer.clear();
-		m_ReadOffset = 0;
-	}
-
-	/**
-	 * \brief When the buffer has been read entirely
-	 */
-	bool IsFinished() const {
-		return m_ReadOffset >= m_Buffer.size();
-	}
-
-	/**
-	 * \brief Get the buffer data
-	 */
-	std::uint8_t* data() {
-		return m_Buffer.data();
-	}
-
-	/**
-	 * \brief Get the buffer data
-	 */
-	const std::uint8_t* data() const {
-		return m_Buffer.data();
-	}
-
-	/**
-	 * \brief Get the read offset
-	 */
-	std::size_t GetReadOffset() const {
-		return m_ReadOffset;
-	}
-
-	/**
-	 * \brief Set the read offset
-	 * \param pos The new read offset
-	 */
-	void SetReadOffset(std::size_t pos);
-
-	/**
-	 * \brief Get the size of the buffer
-	 */
-	std::size_t GetSize() const;
-
-	/**
-	 * \brief Get the remaining size of the buffer
-	 */
-	std::size_t GetRemaining() const;
-
-	/**
-	 * \brief Read a file into the buffer
-	 * \param fileName The name of the file to read
-	 */
-	bool ReadFile(const std::string& fileName);
-
-	/**
-	 * \brief Write a file into the buffer
-	 * \param fileName The name of the file to write to
-	 */
-	bool WriteFile(const std::string& fileName) const;
-
-	/**
-	 * \brief Allocate the buffer on the heap
-	 * \warning Don't forget to free the data !
-	 */
-	std::uint8_t* HeapAllocatedData() const {
-		std::uint8_t* newBuffer = new std::uint8_t[GetSize()];
-		std::memcpy(newBuffer, data(), GetSize());
-		return newBuffer;
-	}
-
-	/**
-	 * \brief Operator == to compare two DataBuffer
-	 */
-	bool operator==(const DataBuffer& other) const {
-		return m_Buffer == other.m_Buffer;
-	}
-
-	iterator begin();
-	iterator end();
-	const_iterator begin() const;
-	const_iterator end() const;
-};
-
-/**
- * \brief Operator << to write a DataBuffer to an ostream
- */
-std::ostream& operator<<(std::ostream& os, const DataBuffer& buffer);
-
-}  // namespace td

include/td/common/VarInt.h

@@ -1,58 +0,0 @@
-#pragma once
-
-/**
- * \file VarInt.h
- * \brief File containing the td::VarInt class
- */
-
-#include <cstddef>
-#include <cstdint>
-
-namespace td {
-
-class DataBuffer;
-
-/**
- * \class VarInt
- * \brief Variable-length format such that smaller numbers use fewer bytes.
- */
-class VarInt {
-  private:
-	std::uint64_t m_Value;
-
-  public:
-	VarInt() : m_Value(0) {}
-	/**
-	 * \brief Construct a variable integer from a value
-	 * \param value The value of the variable integer
-	 */
-	VarInt(std::uint64_t value) : m_Value(value) {}
-
-	/**
-	 * \brief Get the value of the variable integer
-	 */
-	std::uint64_t GetValue() const {
-		return m_Value;
-	}
-
-	/**
-	 * \brief Get the length of the serialized variable integer
-	 */
-	std::size_t GetSerializedLength() const;
-
-	/**
-	 * \brief Serialize the variable integer
-	 * \param out The buffer to write the serialized variable integer to
-	 * \param var The variable integer to serialize
-	 */
-	friend DataBuffer& operator<<(DataBuffer& out, const VarInt& var);
-
-	/**
-	 * \brief Deserialize the variable integer
-	 * \param in The buffer to read the serialized variable integer from
-	 * \param var The variable integer to deserialize
-	 */
-	friend DataBuffer& operator>>(DataBuffer& in, VarInt& var);
-};
-
-}  // namespace td

include/td/game/Game.h

@@ -1,14 +1,46 @@
 #pragma once
 
-#include <td/game/GameHistory.h>
+#include <td/game/World.h>
 
 namespace td {
 namespace game {
 
-class Game {
-  private:
-	GameHistory m_History;
+enum class GameState : std::uint8_t {
+	Lobby,
+	Game,
+	EndGame,
+	Disconnected,
+	Closed
 };
 
-}  // namespace game
-}  // namespace td
+typedef std::map<std::uint8_t, Player> PlayerList;
+
+
+class Game {
+protected:
+	World* m_World;
+	
+	GameState m_GameState = GameState::Lobby;
+	PlayerList m_Players;
+public:
+	Game(World* world);
+	virtual ~Game();
+
+	virtual void Tick(std::uint64_t delta);
+
+	GameState GetGameState() const { return m_GameState; }
+	void SetGameState(GameState gameState) { m_GameState = gameState; };
+
+	const World* GetWorld() const { return m_World; }
+	World* GetWorld() { return m_World; }
+
+	const PlayerList& GetPlayers() const { return m_Players; }
+	PlayerList& GetPlayers() { return m_Players; }
+
+	const Player* GetPlayerById(PlayerID id) const;
+	Player* GetPlayerById(PlayerID id);
+
+};
+
+} // namespace game 
+} // namespace td

include/td/game/Mobs.h

@@ -0,0 +1,260 @@
+#pragma once
+
+#include <td/game/Towers.h>
+
+#include <td/Maths.h>
+#include <td/Types.h>
+#include <td/game/Team.h>
+
+#include <vector>
+#include <memory>
+
+namespace td {
+namespace game {
+
+struct WalkableTile;
+
+enum class EffectType : std::uint8_t {
+	Slowness = 0,
+	Stun,
+	Fire,
+	Poison,
+	Heal,
+};
+
+enum class MobType : std::uint8_t {
+	Zombie = 0,
+	Spider,
+	Skeleton,
+	Pigman,
+	Creeper,
+	Silverfish,
+	Blaze,
+	Witch,
+	Slime,
+	Giant,
+
+	MOB_COUNT
+};
+
+typedef std::uint32_t MobID;
+typedef std::uint8_t MobLevel;
+typedef std::vector<TowerType> TowerImmunities;
+typedef std::vector<EffectType> EffectImmunities;
+
+class MobStats {
+private:
+	float m_Damage;
+	float m_Speed;
+	Vec2f m_Size;
+	std::uint16_t m_MoneyCost;
+	std::uint16_t m_ExpCost;
+	std::uint16_t m_MaxLife;
+	std::uint16_t m_ExpReward;
+public:
+	MobStats(float damage, float speed, Vec2f size, std::uint16_t moneyCost,
+		std::uint16_t expCost, std::uint16_t expReward,
+		std::uint16_t maxLife) : m_Damage(damage), m_Speed(speed),
+		m_Size(size), m_MoneyCost(moneyCost), m_ExpCost(expCost),
+		m_MaxLife(maxLife), m_ExpReward(expReward) {
+	}
+
+	float GetDamage() const { return m_Damage; }
+	float GetMovementSpeed() const { return m_Speed; }
+	const Vec2f& GetSize() const { return m_Size; }
+	std::uint16_t GetMoneyCost() const { return m_MoneyCost; }
+	std::uint16_t GetExpCost() const { return m_ExpCost; }
+	std::uint16_t GetExpReward() const { return m_ExpReward; }
+	std::uint16_t GetMaxLife() const { return m_MaxLife; }
+};
+
+struct EffectDuration {
+	EffectType type;
+	float duration; // in seconds
+	Tower* tower; // the tower that gived the effect
+};
+
+const MobStats* GetMobStats(MobType type, std::uint8_t level);
+const TowerImmunities& GetMobTowerImmunities(MobType type, std::uint8_t level);
+const EffectImmunities& GetMobEffectImmunities(MobType type, std::uint8_t level);
+
+class Mob : public utils::shape::Rectangle {
+protected:
+	float m_Health;
+private:
+	MobID m_ID;
+	PlayerID m_Sender;
+	MobLevel m_Level;
+	Direction m_Direction;
+	std::vector<EffectDuration> m_Effects;
+	const Tower* m_LastDamage;   // the last tower that damaged the mob
+	float m_HitCooldown;
+
+	// utils::Timer m_EffectFireTimer;
+	// utils::Timer m_EffectPoisonTimer;
+	// utils::Timer m_EffectHealTimer;
+
+	TeamCastle* m_CastleTarget;
+	// utils::CooldownTimer m_AttackTimer;
+
+public:
+	Mob(MobID id, MobLevel level, PlayerID sender) : m_Sender(sender), m_Level(level),
+		m_HitCooldown(0), m_CastleTarget(nullptr) {
+
+	}
+
+	virtual MobType GetType() const = 0;
+
+	virtual void Tick(std::uint64_t delta, World* world);
+
+	virtual bool OnDeath(World* world) { return true; }
+
+	MobID GetMobID() const { return m_ID; }
+	const TowerImmunities& GetTowerImmunities() const { return GetMobTowerImmunities(GetType(), m_Level); }
+	const EffectImmunities& GetEffectImmunities() const { return GetMobEffectImmunities(GetType(), m_Level); }
+	PlayerID GetSender() const { return m_Sender; }
+	MobLevel GetLevel() const { return m_Level; }
+	const MobStats* GetStats() const { return GetMobStats(GetType(), m_Level); }
+	void SetHealth(float newHealth) { m_Health = newHealth; }
+	float GetHealth() const { return m_Health; }
+	bool IsDead() const { return m_Health <= 0; }
+	bool IsAlive() const { return m_Health > 0; }
+	const Tower* GetLastDamageTower() { return m_LastDamage; }
+	bool HasReachedEnemyCastle() { return m_CastleTarget != nullptr; }
+
+	void Damage(float dmg, const Tower* damager) {
+		m_Health = std::max(0.0f, m_Health - dmg);
+		m_LastDamage = damager;
+		m_HitCooldown = 0.1;
+	}
+
+	void Heal(float heal) {
+		m_Health = std::min(static_cast<float>(GetStats()->GetMaxLife()), m_Health + heal);
+	}
+
+	void SetMobReachedCastle(TeamCastle* castle) { m_CastleTarget = castle; } // used when mob is in front of the castle
+
+	bool IsImmuneTo(TowerType type);
+
+	bool IsImmuneTo(EffectType type);
+	void AddEffect(EffectType type, float durationSec, Tower* tower);
+	bool HasEffect(EffectType type);
+
+	bool HasTakenDamage() { return m_HitCooldown > 0; }
+
+	float GetTileX() { return GetCenterX() - static_cast<float>(static_cast<std::int32_t>(GetCenterX())); } // returns a float between 0 and 1 excluded
+	float GetTileY() { return GetCenterY() - static_cast<float>(static_cast<std::int32_t>(GetCenterY())); } // returns a float between 0 and 1 excluded
+
+	Direction GetDirection() const { return m_Direction; }
+	void SetDirection(Direction dir) { m_Direction = dir; }
+protected:
+	void InitMob() {
+		m_Health = static_cast<float>(GetStats()->GetMaxLife());
+		SetSize(GetStats()->GetSize().x, GetStats()->GetSize().y);
+	}
+private:
+	void UpdateEffects(std::uint64_t delta, World* world);
+	void AttackCastle(std::uint64_t delta, World* world);
+	void Move(std::uint64_t delta, World* world);
+	void Walk(std::uint64_t delta, World* world);
+	void MoveBack(const TeamCastle& castle, World* world);
+	void ChangeDirection(const WalkableTile& tile, World* world);
+	bool IsTouchingCastle(const TeamCastle& castle) const;
+	EffectDuration& GetEffect(EffectType type);
+};
+
+typedef std::shared_ptr<Mob> MobPtr;
+
+class Zombie : public Mob {
+public:
+	Zombie(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Zombie; }
+};
+
+class Spider : public Mob {
+public:
+	Spider(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Spider; }
+};
+
+class Skeleton : public Mob {
+public:
+	Skeleton(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Skeleton; }
+};
+
+class PigMan : public Mob {
+public:
+	PigMan(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Pigman; }
+};
+
+class Creeper : public Mob {
+public:
+	Creeper(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Creeper; }
+};
+
+class Silverfish : public Mob {
+public:
+	Silverfish(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Silverfish; }
+};
+
+class Blaze : public Mob {
+public:
+	Blaze(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Blaze; }
+};
+
+class Witch : public Mob {
+public:
+	Witch(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Witch; }
+};
+
+class Slime : public Mob {
+public:
+	Slime(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Slime; }
+};
+
+class Giant : public Mob {
+public:
+	Giant(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Giant; }
+};
+
+namespace MobFactory {
+
+MobPtr CreateMob(MobID id, MobType type, std::uint8_t level, PlayerID sender);
+std::string GetMobName(MobType type);
+
+}
+
+class MobListener {
+public:
+	virtual void OnMobSpawn(Mob* mob) {}
+	virtual void OnMobDie(Mob* mob) {}
+
+	virtual void OnMobDamage(Mob* target, float damage, Tower* damager) {}
+
+	virtual void OnMobTouchCastle(Mob* damager, TeamCastle* enemyCastle) {}
+	virtual void OnMobCastleDamage(Mob* damager, TeamCastle* enemyCastle, float damage) {}
+};
+
+// typedef utils::ObjectNotifier<MobListener> MobNotifier;
+
+} // namespace game
+} // namespace td
+

include/td/game/Team.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include <td/Types.h>
+
+#include <td/misc/Shapes.h>
+
+#include <vector>
+#include <memory>
+#include <cmath>
+
+namespace td {
+namespace game {
+
+class Player;
+
+class Spawn : public utils::shape::Rectangle {
+private:
+	Direction m_Direction;
+public:
+	Spawn() {
+		SetWidth(5);
+		SetHeight(5);
+	}
+
+	Direction GetDirection() const { return m_Direction; }
+
+	void SetDirection(Direction direction) { m_Direction = direction; }
+};
+
+class Team;
+
+class TeamCastle : public utils::shape::Rectangle {
+private:
+	const Team* m_Team;
+	float m_Life;
+public:
+	static constexpr int CastleMaxLife = 1000;
+
+	TeamCastle(const Team* team) : m_Team(team), m_Life(CastleMaxLife) {
+		SetWidth(5);
+		SetHeight(5);
+	}
+
+	TeamCastle() : TeamCastle(nullptr) {}
+
+	float GetLife() const { return m_Life; }
+
+	const Team* GetTeam() const { return m_Team; }
+	void SetTeam(const Team* team) { m_Team = team; }
+
+	void SetLife(float life) { m_Life = life; }
+	void Damage(float damage) { m_Life = std::max(0.0f, m_Life - damage); }
+
+	void SetShape(utils::shape::Rectangle rect) {
+		SetCenter(rect.GetCenter());
+		SetSize(rect.GetSize());
+	}
+};
+
+class Team {
+private:
+	std::vector<Player*> m_Players;
+	TeamColor m_Color;
+	Spawn m_Spawn;
+	TeamCastle m_TeamCastle;
+public:
+	Team(TeamColor color) : m_Color(color) {}
+
+	void AddPlayer(Player* newPlayer);
+	void RemovePlayer(const Player* player);
+
+	TeamColor GetColor() const;
+
+	const Spawn& GetSpawn() const { return m_Spawn; }
+	Spawn& GetSpawn() { return m_Spawn; }
+
+	const TeamCastle& GetCastle() const { return m_TeamCastle; }
+	TeamCastle& GetCastle() { return m_TeamCastle; }
+
+	std::uint8_t GetPlayerCount() const;
+};
+
+typedef std::array<Team, 2> TeamList;
+
+} // namespace game
+} // namespace td

include/td/game/Towers.h

@@ -0,0 +1,266 @@
+#pragma once
+
+#include <string>
+#include <memory>
+
+#include <td/misc/Shapes.h>
+
+#include <td/Types.h>
+
+namespace td {
+namespace game {
+
+class World;
+class Mob;
+
+typedef std::shared_ptr<Mob> MobPtr;
+
+enum class TowerType : std::uint8_t {
+	Archer = 0,
+	Ice,
+	Sorcerer,
+	Zeus,
+	Mage,
+	Artillery,
+	Quake,
+	Poison,
+
+	Leach,
+	Turret,
+	Necromancer,
+
+	TowerCount
+};
+
+enum class TowerSize : std::uint8_t {
+	Little = 3, // 3x3
+	Big = 5,        // 5x5
+};
+
+enum class TowerPath : std::uint8_t {
+	Top = 0,
+	Base, // Base Path
+	Bottom
+};
+
+class TowerStats {
+private:
+	float m_Rate;
+	float m_Damage;
+	std::uint8_t m_Range;
+public:
+	TowerStats(float rate, float damage, std::uint8_t range) : m_Rate(rate), m_Damage(damage),
+		m_Range(range) {
+	}
+
+	float GetDamageRate() const { return m_Rate; }
+	float GetDamage() const { return m_Damage; }
+	std::uint8_t GetRange() const { return m_Range; }
+};
+
+class TowerLevel {
+private:
+	// 1, 2, 3, 4
+	std::uint8_t m_Level : 3;
+	// 0 : base path       1 : top path (if there is bottom path)     2 : bottom path (if there is top path)
+	TowerPath m_Path : 2;
+public:
+	TowerLevel() : m_Level(1), m_Path(TowerPath::Base) {}
+	TowerLevel(std::uint8_t level, TowerPath path) : m_Level(level), m_Path(path) {}
+
+	std::uint8_t GetLevel() const { return m_Level; }
+	TowerPath GetPath() const { return m_Path; }
+
+	void SetLevel(std::uint8_t level) { m_Level = level; }
+	void SetPath(TowerPath path) { m_Path = path; }
+
+	// operator to sort maps
+	friend bool operator<(const TowerLevel& level, const TowerLevel& other) {
+		return level.GetLevel() + static_cast<std::uint8_t>(level.GetPath()) * 4 <
+			other.GetLevel() + static_cast<std::uint8_t>(other.GetPath()) * 4;
+	}
+};
+
+const TowerStats* GetTowerStats(TowerType type, TowerLevel level);
+
+typedef std::uint16_t TowerID;
+
+class Tower : public utils::shape::Circle {
+private:
+	TowerID m_ID;
+	TowerType m_Type;
+	TowerLevel m_Level{};
+	PlayerID m_Builder;
+protected:
+	// utils::CooldownTimer m_Timer;
+public:
+	Tower(TowerID id, TowerType type, std::int32_t x, std::int32_t y, PlayerID builder) : utils::shape::Circle(x + 0.5f, y + 0.5f, 0), m_ID(id), m_Type(type), m_Builder(builder)
+		// m_Timer(GetStats()->GetDamageRate() * 1000) 
+		{ // converting seconds to millis
+		SetRadius(GetStats()->GetRange());
+	}
+
+	virtual TowerType GetType() const = 0;
+	virtual TowerSize GetSize() const = 0;
+	virtual void Tick(std::uint64_t delta, World* world) = 0;
+
+	void Upgrade(std::uint8_t level, TowerPath path) {
+		m_Level.SetLevel(level);
+		m_Level.SetPath(path);
+		// m_Timer.SetCooldown(GetStats()->GetDamageRate() * 1000); // converting seconds to millis
+		// m_Timer.Reset();
+		SetRadius(GetStats()->GetRange());
+	}
+
+	std::uint16_t GetID() const { return m_ID; }
+	const TowerLevel& GetLevel() const { return m_Level; }
+	const TowerStats* GetStats() const { return GetTowerStats(m_Type, m_Level); }
+	PlayerID GetBuilder() const { return m_Builder; }
+
+	bool IsMobInRange(MobPtr mob);
+};
+
+typedef std::shared_ptr<Tower> TowerPtr;
+
+namespace TowerFactory {
+
+TowerPtr CreateTower(TowerType type, TowerID id, std::int32_t x, std::int32_t y, PlayerID builder);
+std::string GetTowerName(TowerType type);
+
+} // namespace TowerFactory
+
+
+class TowerInfo {
+private:
+	std::string m_Name, m_Description;
+	bool m_IsBigTower;
+public:
+	TowerInfo(std::string&& name, std::string&& description, bool big) : m_Name(std::move(name)),
+		m_Description(std::move(description)), m_IsBigTower(big) {
+	}
+
+	const std::string& GetName() const { return m_Name; }
+	const std::string& GetDescription() const { return m_Description; }
+
+	bool IsBigTower() const { return m_IsBigTower; }
+};
+
+const TowerInfo& GetTowerInfo(TowerType type);
+
+// ---------- Little Towers ----------
+
+class LittleTower : public Tower {
+public:
+	LittleTower(TowerID id, TowerType type, std::uint16_t x, std::uint16_t y, PlayerID builder) : Tower(id, type, x, y, builder) {}
+
+	virtual TowerSize GetSize() const { return TowerSize::Little; }
+
+	virtual TowerType GetType() const = 0;
+	virtual void Tick(std::uint64_t delta, World* world) = 0;
+};
+
+class ArcherTower : public LittleTower {
+public:
+	ArcherTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	constexpr static float ExplosionRadius = 1.5f;
+	constexpr static float FireDurationSec = 10.0f;
+
+	virtual TowerType GetType() const { return TowerType::Archer; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class IceTower : public LittleTower {
+public:
+	IceTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Ice; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class MageTower : public LittleTower {
+public:
+	MageTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Mage; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class PoisonTower : public LittleTower {
+public:
+	PoisonTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Poison; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class QuakeTower : public LittleTower {
+public:
+	QuakeTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Quake; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class ArtilleryTower : public LittleTower {
+public:
+	ArtilleryTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Artillery; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class SorcererTower : public LittleTower {
+public:
+	SorcererTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Sorcerer; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class ZeusTower : public LittleTower {
+public:
+	ZeusTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : LittleTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Zeus; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+// ---------- Big Towers ----------
+
+class BigTower : public Tower {
+public:
+	BigTower(TowerID id, TowerType type, std::uint16_t x, std::uint16_t y, PlayerID builder) : Tower(id, type, x, y, builder) {}
+
+	virtual TowerSize GetSize() const { return TowerSize::Big; }
+
+	virtual TowerType GetType() const = 0;
+	virtual void Tick(std::uint64_t delta, World* world) = 0;
+};
+
+class TurretTower : public BigTower {
+public:
+	TurretTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : BigTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Turret; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class NecromancerTower : public BigTower {
+public:
+	NecromancerTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : BigTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Necromancer; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+class LeachTower : public BigTower {
+public:
+	LeachTower(TowerID id, std::uint16_t x, std::uint16_t y, PlayerID builder) : BigTower(id, GetType(), x, y, builder) {}
+
+	virtual TowerType GetType() const { return TowerType::Leach; }
+	virtual void Tick(std::uint64_t delta, World* world);
+};
+
+} // namespace game
+} // namespace td

include/td/game/World.h

@@ -0,0 +1,137 @@
+#pragma once
+
+#include <td/game/WorldTypes.h>
+#include <td/protocol/packet/Packets.h>
+
+namespace td {
+namespace game {
+
+class World {
+  protected:
+	TowerTileColorPalette m_TowerPlacePalette;
+	Color m_WalkablePalette;
+	std::vector<Color> m_DecorationPalette;
+	Color m_Background;
+
+	std::unordered_map<ChunkCoord, ChunkPtr> m_Chunks;
+
+	SpawnColorPalette m_SpawnColorPalette;
+
+	TilePalette m_TilePalette;
+
+	MobList m_Mobs;
+
+	TowerList m_Towers;
+
+	TeamList m_Teams;
+
+  public:
+	World();
+
+	bool LoadMap(const protocol::pdata::WorldHeader& worldHeader);
+	bool LoadMap(const protocol::pdata::WorldData& worldData);
+
+	bool LoadMapFromFile(const std::string& fileName);
+	bool SaveMap(const std::string& fileName) const;
+
+	void Tick(std::uint64_t delta);
+
+	void SpawnMobAt(MobID id, MobType type, std::uint8_t level, PlayerID sender, float x, float y, Direction dir);
+
+	TowerPtr PlaceTowerAt(TowerID id, TowerType type, std::int32_t x, std::int32_t y, PlayerID builder);
+	TowerPtr RemoveTower(TowerID id);
+
+	TilePtr GetTile(std::int32_t x, std::int32_t y) const;
+
+	const TowerTileColorPalette& GetTowerTileColorPalette() const {
+		return m_TowerPlacePalette;
+	}
+	const Color& GetWalkableTileColor() const {
+		return m_WalkablePalette;
+	}
+	const std::vector<Color>& GetDecorationPalette() const {
+		return m_DecorationPalette;
+	}
+	const Color& GetBackgroundColor() const {
+		return m_Background;
+	}
+
+	const TilePalette& GetTilePalette() const {
+		return m_TilePalette;
+	}
+
+	TilePtr GetTilePtr(TileIndex index) const {
+		if (index == 0)
+			return nullptr;
+		return m_TilePalette.at(index - 1);
+	}
+
+	bool CanPlaceLittleTower(const Vec2f& worldPos, PlayerID player) const;
+	bool CanPlaceBigTower(const Vec2f& worldPos, PlayerID player) const;
+
+	TowerPtr GetTower(const Vec2f& position) const;	 // returns null if no tower is here
+
+	const std::unordered_map<ChunkCoord, ChunkPtr>& GetChunks() const {
+		return m_Chunks;
+	}
+
+	const Color& GetSpawnColor(TeamColor color) const {
+		return m_SpawnColorPalette[static_cast<std::size_t>(color)];
+	}
+	const SpawnColorPalette& GetSpawnColors() const {
+		return m_SpawnColorPalette;
+	}
+
+	const MobList& GetMobList() const {
+		return m_Mobs;
+	}
+	MobList& GetMobList() {
+		return m_Mobs;
+	}
+
+	const Color* GetTileColor(TilePtr tile) const;
+
+	Team& GetRedTeam() {
+		return m_Teams[static_cast<std::uint8_t>(TeamColor::Red)];
+	}
+	const Team& GetRedTeam() const {
+		return m_Teams[static_cast<std::uint8_t>(TeamColor::Red)];
+	}
+
+	Team& GetBlueTeam() {
+		return m_Teams[static_cast<std::uint8_t>(TeamColor::Blue)];
+	}
+	const Team& GetBlueTeam() const {
+		return m_Teams[static_cast<std::uint8_t>(TeamColor::Red)];
+	}
+
+	Team& GetTeam(TeamColor team) {
+		return m_Teams[static_cast<std::uint8_t>(team)];
+	}
+	const Team& GetTeam(TeamColor team) const {
+		return m_Teams[static_cast<std::uint8_t>(team)];
+	}
+
+	const TeamList& GetTeams() const {
+		return m_Teams;
+	}
+
+	const TowerList& GetTowers() const {
+		return m_Towers;
+	}
+
+	TowerPtr GetTowerById(TowerID tower);
+
+	const Player* GetPlayerById(PlayerID id) const;
+
+  private:
+	void TickMobs(std::uint64_t delta);
+	void CleanDeadMobs();
+};
+
+
+
+
+
+}  // namespace game
+}  // namespace td

include/td/game/WorldTypes.h

@@ -0,0 +1,119 @@
+#pragma once
+
+#include <td/Maths.h>
+#include <td/game/Mobs.h>
+#include <td/game/Team.h>
+#include <td/game/Towers.h>
+
+namespace td {
+namespace game {
+struct ChunkCoord {
+	std::int16_t x, y;
+
+	friend bool operator==(const td::game::ChunkCoord& first, const td::game::ChunkCoord& other) {
+		return first.x == other.x && first.y == other.y;
+	}
+};
+
+
+class Game;
+
+enum class TileType : std::uint8_t {
+	None = 0,
+	Tower,
+	Walk,
+	Decoration,
+	/*Heal,
+	Lava,
+	Bedrock,
+	Freeze,
+	Ice,*/
+};
+
+static constexpr Color BLACK{0, 0, 0};
+static constexpr Color WHITE{255, 255, 255};
+
+static constexpr Color RED{255, 0, 0};
+static constexpr Color GREEN{0, 255, 0};
+static constexpr Color BLUE{0, 0, 255};
+
+struct Tile {
+	virtual TileType GetType() const = 0;
+};
+
+struct TowerTile : Tile {
+	std::uint8_t color_palette_ref;
+	TeamColor team_owner;
+
+	virtual TileType GetType() const {
+		return TileType::Tower;
+	}
+};
+
+struct WalkableTile : Tile {
+	Direction direction;
+
+	virtual TileType GetType() const {
+		return TileType::Walk;
+	}
+};
+
+struct DecorationTile : Tile {
+	std::uint16_t color_palette_ref;
+
+	virtual TileType GetType() const {
+		return TileType::Decoration;
+	}
+};
+
+typedef std::shared_ptr<Tile> TilePtr;
+typedef std::vector<std::uint16_t> ChunkPalette;
+
+typedef std::shared_ptr<WalkableTile> WalkableTilePtr;
+
+typedef std::uint32_t TileIndex;
+
+// 32 x 32 area
+struct Chunk {
+	enum { ChunkWidth = 32, ChunkHeight = 32, ChunkSize = ChunkWidth * ChunkHeight };
+	typedef std::array<std::uint16_t, ChunkSize> ChunkData;
+
+	// stores index of tile palette
+	ChunkData tiles{0};
+	ChunkPalette palette;
+
+	TileIndex GetTileIndex(std::uint16_t tileNumber) const {
+		TileIndex chunkPaletteIndex = tiles.at(tileNumber);
+		if (chunkPaletteIndex == 0)	 // index 0 means empty tile     index 1 = first tile
+			return 0;
+		return palette.at(chunkPaletteIndex);
+	}
+};
+
+typedef std::shared_ptr<Chunk> ChunkPtr;
+
+typedef std::array<Color, 2> TowerTileColorPalette;
+
+typedef std::vector<TilePtr> TilePalette;
+
+typedef std::vector<MobPtr> MobList;
+
+typedef std::array<Color, 2> SpawnColorPalette;
+
+typedef std::vector<TowerPtr> TowerList;
+
+
+}  // namespace game
+
+}  // namespace td
+
+
+
+namespace std {
+template <>
+struct hash<td::game::ChunkCoord> {
+	std::size_t operator()(const td::game::ChunkCoord& key) const noexcept {
+		return std::hash<std::int16_t>()(key.x << 16 | key.y);
+	}
+};
+}  // namespace std

include/td/input/Display.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <string>
+
+#include <SDL3/SDL_video.h>
+
+namespace td {
+
+class Display {
+  public:
+	Display(int a_Width, int a_Height, const std::string& a_Title);
+	~Display();
+
+	void PollEvents();
+	void Update();
+
+	bool IsCloseRequested() {
+		return m_ShouldClose;
+	}
+
+	float GetAspectRatio() {
+		return m_AspectRatio;
+	}
+	
+	int GetWindowWidth() {
+		return m_LastWidth;
+	}
+
+	int GetWindowHeight() {
+		return m_LastHeight;
+	}
+
+  private:
+	SDL_Window* m_Window;
+	SDL_GLContext m_GLContext;
+
+	int m_LastWidth, m_LastHeight;
+	float m_AspectRatio;
+
+	bool m_ShouldClose;
+};
+
+}  // namespace td

include/td/misc/Shapes.h

@@ -0,0 +1,96 @@
+#pragma once
+
+#include <cstdint>
+
+namespace td {
+namespace utils {
+namespace shape {
+
+class Point {
+private:
+	float m_X, m_Y;
+public:
+	Point() : m_X(0), m_Y(0) {}
+	Point(float x, float y) : m_X(x), m_Y(y) {}
+
+	float GetX() const { return m_X; }
+	float GetY() const { return m_Y; }
+
+	void SetX(float x) { m_X = x; }
+	void SetY(float y) { m_Y = y; }
+
+	float Distance(const Point& point) const;
+	float DistanceSquared(const Point& point) const;
+};
+
+class Circle;
+
+class Rectangle {
+private:
+	Point m_Center;
+	float m_Width, m_Height;
+public:
+	Rectangle() {}
+
+	const Point& GetCenter() const { return m_Center; }
+	float GetCenterX() const { return m_Center.GetX(); }
+	float GetCenterY() const { return m_Center.GetY(); }
+
+	float GetWidth() const { return m_Width; }
+	float GetHeight() const { return m_Height; }
+
+	Point GetTopLeft() const { return { m_Center.GetX() - (m_Width / 2.0f), m_Center.GetY() - (m_Height / 2.0f) }; }
+	Point GetBottomRight() const { return { m_Center.GetX() + (m_Width / 2.0f), m_Center.GetY() + (m_Height / 2.0f) }; }
+
+	void SetCenter(const Point& center) { m_Center = center; }
+	void SetCenterX(float x) { m_Center.SetX(x); }
+	void SetCenterY(float y) { m_Center.SetY(y); }
+
+	void SetSize(float width, float height) { SetWidth(width); SetHeight(height); }
+	void SetSize(Point size) { SetSize(size.GetX(), size.GetY()); }
+	Point GetSize() { return { m_Width, m_Height }; }
+
+	void SetWidth(float width) { m_Width = width; }
+	void SetHeight(float height) { m_Height = height; }
+
+	bool CollidesWith(const Point& point) const;
+	bool CollidesWith(const Rectangle& rect) const;
+	bool CollidesWith(const Circle& circle) const;
+
+	// distance from the closest side of the rectangle
+	float Distance(const Circle& circle) const;
+	float DistanceSquared(const Circle& circle) const;
+};
+
+class Circle {
+private:
+	Point m_Center;
+	float m_Radius;
+public:
+	Circle(float x, float y, float radius) : m_Center(x, y), m_Radius(radius) {}
+	Circle() : m_Radius(0) {}
+
+	const Point& GetCenter() const { return m_Center; }
+	float GetCenterX() const { return m_Center.GetX(); }
+	float GetCenterY() const { return m_Center.GetY(); }
+
+	float GetRadius() const { return m_Radius; }
+
+	void SetCenter(const Point& center) { m_Center = center; }
+	void SetCenterX(float x) { m_Center.SetX(x); }
+	void SetCenterY(float y) { m_Center.SetY(y); }
+
+	void SetRadius(float radius) { m_Radius = radius; }
+
+	bool CollidesWith(const Point& point) const;
+	bool CollidesWith(const Rectangle& rect) const;
+	bool CollidesWith(const Circle& circle) const;
+
+	// distance from the closest side of the rectangle
+	float Distance(const Rectangle& rect) const;
+	float DistanceSquared(const Rectangle& rect) const;
+};
+
+} // namespace shape
+} // namespace utils 
+} // namespace td

include/td/protocol/command/CommandData.h

@@ -36,7 +36,7 @@ struct UseItem {
 
 struct TeamChange {
 	sp::BitField<PlayerID, 7> m_Player;
-	sp::BitField<Team, 1> m_NewTeam;
+	sp::BitField<TeamColor, 1> m_NewTeam;
 };
 
 struct PlayerJoin {

include/td/protocol/packet/PacketData.h

@@ -4,6 +4,7 @@
 #include <vector>
 #include <td/protocol/command/Commands.h>
 #include <td/common/Array.h>
+#include <td/game/WorldTypes.h>
 
 // Make it dynamic ?
 #define LOCKSTEP_BUFFER_SIZE 10
@@ -60,7 +61,6 @@ struct ChatMessage {
 // TODO: handle players joining in the first second
 
 struct BeginGame {
-	MapData m_Map;
 	std::vector<PlayerInfo> m_BlueTeam;
 	std::vector<PlayerInfo> m_RedTeam;
 	// optional, used for players joining mid game
@@ -72,6 +72,24 @@ struct LockSteps {
 	Array<LockStep, LOCKSTEP_BUFFER_SIZE> m_LockSteps;
 };
 
+struct WorldHeader {
+	game::TowerTileColorPalette m_TowerPlacePalette;
+	Color m_WalkablePalette;
+	std::vector<Color> m_DecorationPalette;
+	Color m_Background;
+
+	game::SpawnColorPalette m_SpawnColorPalette;
+
+	game::TilePalette m_TilePalette;
+
+	game::Spawn m_RedSpawn, m_BlueSpawn;
+	game::TeamCastle m_RedCastle, m_BlueCastle;
+};
+
+struct WorldData {
+	std::unordered_map<game::ChunkCoord, game::ChunkPtr> m_Chunks;
+};
+
 }  // namespace pdata
 }  // namespace protocol
 }  // namespace td

include/td/protocol/packet/Packets.h

@@ -26,7 +26,9 @@ enum class PacketID : std::uint8_t {
 	LoggingSuccess,
 	PlayerJoin,
 	PlayerLeave,
-	PlayerLogin
+	PlayerLogin,
+	WorldHeader,
+	WorldData,
 };
 
 class PacketHandler;
@@ -49,13 +51,15 @@ using LoggingSuccessPacket = PacketMessage<pdata::LoggingSuccess, PacketID::Logg
 using PlayerJoinPacket = PacketMessage<pdata::PlayerJoin, PacketID::PlayerJoin>;
 using PlayerLeavePacket = PacketMessage<pdata::PlayerLeave, PacketID::PlayerLeave>;
 using PlayerLoginPacket = PacketMessage<pdata::PlayerLogin, PacketID::PlayerLogin>;
+using WorldHeaderPacket = PacketMessage<pdata::WorldHeader, PacketID::WorldHeader>;
+using WorldDataPacket = PacketMessage<pdata::WorldData, PacketID::WorldData>;
 
 
 }  // namespace packets
 
 using AllPackets = std::tuple<packets::BeginGamePacket, packets::ChatMessagePacket, packets::DisconnectPacket,
 	packets::KeepAlivePacket, packets::LockStepsPacket, packets::LoggingSuccessPacket, packets::PlayerJoinPacket,
-	packets::PlayerLeavePacket, packets::PlayerLoginPacket>;
+	packets::PlayerLeavePacket, packets::PlayerLoginPacket, packets::WorldHeaderPacket, packets::WorldDataPacket>;
 
 class PacketHandler : public sp::MessageHandler<AllPackets> {};
 

include/td/render/Camera.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <td/Maths.h>
+
+namespace td {
+namespace render {
+
+class Camera {
+  private:
+	Mat4f m_ViewMatrix;
+	Mat4f m_ProjectionMatrix;
+	Mat4f m_InvViewMatrix;
+	Mat4f m_InvProjectionMatrix;
+
+	float m_CamDistance = 25.0f;
+	Vec3f m_CamPos{0, m_CamDistance, 0};
+	Vec2f m_CamLook{};
+
+	float m_Yaw = -PI / 2.0f;
+	float m_Pitch = -PI / 2.0f + 0.0000001f;
+
+  public:
+	const Mat4f& GetViewMatrix() const {
+		return m_ViewMatrix;
+	}
+
+	const Mat4f& GetProjectionMatrix() const {
+		return m_ProjectionMatrix;
+	}
+
+	void UpdatePerspective(float a_AspectRatio);
+
+	void SetCamPos(const Vec3f& a_NewPos);
+};
+
+}  // namespace render
+}  // namespace td

include/td/render/OpenGL.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#ifdef TD_GL_LOADER_GLEW
+#include <GL/glew.h>
+#else
+#include <glbinding/gl/gl.h>
+using namespace gl;
+#endif

include/td/render/Renderer.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <td/render/Camera.h>
+#include <td/render/loader/GLLoader.h>
+#include <memory>
+
+namespace td {
+namespace render {
+
+class Renderer {
+  protected:
+	Camera& m_Camera;
+
+  public:
+	Renderer(Camera& a_Camera) : m_Camera(a_Camera) {}
+	virtual ~Renderer() {}
+
+	virtual void Render() = 0;
+
+	void Render(const GL::VertexArray& a_Vao);
+};
+
+class RenderPipeline {
+  private:
+	std::vector<std::unique_ptr<Renderer>> m_Renderers;
+
+  public:
+	RenderPipeline();
+	~RenderPipeline() = default;
+
+	void AddRenderer(std::unique_ptr<Renderer>&& a_Renderer) {
+		m_Renderers.push_back(std::move(a_Renderer));
+	}
+
+	void Clear() {
+		m_Renderers.clear();
+	}
+
+	void Render() {
+		for (auto& renderer : m_Renderers) {
+			renderer->Render();
+		}
+	}
+};
+
+}  // namespace render
+}  // namespace td

include/td/render/loader/GLLoader.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include <sp/common/NonCopyable.h>
+
+#include <vector>
+
+namespace td {
+namespace GL {
+
+struct VertexAttribPointer {
+	unsigned int m_Index;
+	unsigned int m_Size;
+	unsigned int m_Offset;
+};
+
+class ElementBuffer : private sp::NonCopyable {
+  private:
+	unsigned int m_ID = 0;
+	std::size_t m_TriangleCount;
+
+  public:
+	ElementBuffer(ElementBuffer&& other) {
+		std::swap(m_ID, other.m_ID);
+		m_TriangleCount = other.m_TriangleCount;
+	}
+
+	explicit ElementBuffer(const std::vector<unsigned int>& indicies);
+	~ElementBuffer();
+
+	void Bind() const;
+	void Unbind() const;
+
+	std::size_t GetTriangleCount() const {
+		return m_TriangleCount;
+	}
+};
+
+class VertexBuffer : private sp::NonCopyable {
+  private:
+	unsigned int m_ID = 0, m_DataStride;
+	std::vector<VertexAttribPointer> m_VertexAttribs;
+
+  public:
+	VertexBuffer(VertexBuffer&& other) {
+		std::swap(m_ID, other.m_ID);
+		m_VertexAttribs = std::move(other.m_VertexAttribs);
+		m_DataStride = other.m_DataStride;
+	}
+
+	VertexBuffer(const std::vector<float>& data, unsigned int stride);
+	~VertexBuffer();
+
+	void Bind() const;
+	void Unbind() const;
+	void AddVertexAttribPointer(unsigned int index, unsigned int coordinateSize, unsigned int offset);
+	void BindVertexAttribs() const;
+};
+
+class VertexArray : private sp::NonCopyable {
+  private:
+	unsigned int m_ID = 0;
+	ElementBuffer m_ElementBuffer;
+	std::vector<VertexBuffer> m_VertexBuffers;	// use to destroy vbos when become unused
+  public:
+	VertexArray(VertexArray&& other) : m_ElementBuffer(std::move(other.m_ElementBuffer)) {
+		std::swap(m_ID, other.m_ID);
+		m_VertexBuffers = std::move(other.m_VertexBuffers);
+	}
+
+	VertexArray(ElementBuffer&& indicies);
+	~VertexArray();
+
+	std::size_t GetVertexCount() const {
+		return m_ElementBuffer.GetTriangleCount();
+	}
+
+	void BindVertexBuffer(VertexBuffer&& vbo);
+	void Bind() const;
+	void Unbind() const;
+
+  private:
+	void BindElementArrayBuffer();
+};
+
+}  // namespace GL
+}  // namespace td

include/td/render/loader/WorldLoader.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <td/game/World.h>
+#include <td/render/loader/GLLoader.h>
+
+namespace td {
+namespace render {
+
+namespace WorldLoader {
+
+struct RenderData {
+	std::vector<float> positions;
+	std::vector<float> colors;
+};
+
+GL::VertexArray LoadMobModel();
+GL::VertexArray LoadWorldModel(const td::game::World* world);
+GL::VertexArray LoadTileSelectModel();
+RenderData LoadTowerModel(game::TowerPtr tower);
+
+} // namespace WorldLoader
+
+
+} // namespace render
+} // namespace td

include/td/render/renderer/WorldRenderer.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <td/game/World.h>
+#include <td/render/Renderer.h>
+#include <td/render/shader/WorldShader.h>
+#include <td/render/loader/GLLoader.h>
+
+namespace td {
+namespace render {
+
+class WorldRenderer : public Renderer {
+  private:
+	const game::World& m_World;
+	shader::WorldShader m_Shader;
+	std::unique_ptr<GL::VertexArray> m_WorldVao;
+
+  public:
+	WorldRenderer(Camera& a_Camera, const game::World& a_World);
+	virtual ~WorldRenderer();
+
+	virtual void Render() override;
+};
+
+}  // namespace render
+}  // namespace td

include/td/render/shader/EntityShader.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <td/render/shader/ShaderProgram.h>
+
+namespace td {
+namespace shader {
+
+class EntityShader : public ShaderProgram {
+  private:
+	unsigned int m_LocationProjectionMatrix = 0;
+	unsigned int m_LocationViewMatrix = 0;
+	unsigned int m_LocationPosition = 0;
+	unsigned int m_LocationColorEffect = 0;
+
+  protected:
+	virtual void GetAllUniformLocation();
+
+  public:
+	EntityShader();
+
+	void LoadShader();
+
+	void SetColorEffect(const Vec3f& color);
+	void SetProjectionMatrix(const Mat4f& proj) const;
+	void SetViewMatrix(const Mat4f& view) const;
+	void SetModelPos(const Vec3f& pos) const;
+};
+
+}  // namespace shader
+}  // namespace td

include/td/render/shader/ShaderProgram.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <td/Maths.h>
+#include <td/render/OpenGL.h>
+#include <string>
+
+namespace td {
+namespace shader {
+
+class ShaderProgram {
+  public:
+	ShaderProgram();
+	virtual ~ShaderProgram();
+
+	void Start() const;
+	void Stop() const;
+
+	void LoadProgramFile(const std::string& vertexFile, const std::string& fragmentFile);
+	void LoadProgram(const std::string& vertexSource, const std::string& fragmentSource);
+
+  protected:
+	virtual void GetAllUniformLocation() = 0;
+	int GetUniformLocation(const std::string& uniformName) const;
+
+	void LoadFloat(unsigned int location, float value) const;
+	void LoadInt(unsigned int location, int value) const;
+	void LoadVector(unsigned int location, const Vec2f& vector) const;
+	void LoadVector(unsigned int location, const Vec3f& vector) const;
+	void LoadBoolean(unsigned int location, bool value) const;
+	void LoadMat4(unsigned int location, const Mat4f& mat) const;
+	void CleanUp() const;
+
+  private:
+	unsigned int m_ProgramID;
+	unsigned int m_VertexShaderID;
+	unsigned int m_FragmentShaderID;
+
+	unsigned int LoadShaderFromFile(const std::string& file, GLenum type);
+	unsigned int LoadShader(const std::string& source, GLenum type);
+};
+
+}  // namespace shader
+}  // namespace td

include/td/render/shader/WorldShader.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <td/render/shader/ShaderProgram.h>
+
+namespace td {
+namespace shader {
+
+class WorldShader : public ShaderProgram {
+private:
+	unsigned int m_LocationProjection = 0, m_LocationView = 0;
+protected:
+	void GetAllUniformLocation();
+public:
+	WorldShader();
+
+	void SetProjectionMatrix(const Mat4f& proj) const;
+	void SetViewMatrix(const Mat4f& view) const;
+};
+
+} // namespace shader
+} // namespace td

src/main.cpp

@@ -1,18 +1,210 @@
 #include <iostream>
-// #include <td/protocol/packet/PacketVisitor.h>
-#include <td/game/GameHistory.h>
-#include <td/protocol/command/Commands.h>
 
-class Test : public td::protocol::CommandHandler {};
+#include <sp/common/DataBuffer.h>
+#include <sp/extensions/Compress.h>
+#include <td/input/Display.h>
+
+#include <td/game/World.h>
+#include <td/protocol/packet/Packets.h>
+#include <td/render/renderer/WorldRenderer.h>
+
+namespace td {
+namespace game {
+
+sp::DataBuffer& operator>>(sp::DataBuffer& buffer, game::TilePtr& tile) {
+	game::TileType tileType;
+	buffer >> tileType;
+	switch (tileType) {
+		case game::TileType::Tower: {
+			auto tilePtr = std::make_shared<game::TowerTile>();
+			buffer >> tilePtr->color_palette_ref >> tilePtr->team_owner;
+			tile = tilePtr;
+			break;
+		}
+		case game::TileType::Walk: {
+			auto tilePtr = std::make_shared<game::WalkableTile>();
+			buffer >> tilePtr->direction;
+			tile = tilePtr;
+			break;
+		}
+		case game::TileType::Decoration: {
+			auto tilePtr = std::make_shared<game::DecorationTile>();
+			buffer >> tilePtr->color_palette_ref;
+			tile = tilePtr;
+			break;
+		}
+		default:
+			break;
+	}
+	return buffer;
+}
+}  // namespace game
+}  // namespace td
+
+namespace sp {
+namespace details {
+
+template <>
+void ReadMessage(DataBuffer& a_Buffer, td::protocol::pdata::WorldHeader& a_Header) {
+	a_Buffer >> a_Header.m_TowerPlacePalette >> a_Header.m_WalkablePalette;
+
+	std::uint16_t decoPaletteSize;
+	a_Buffer >> decoPaletteSize;
+
+	std::size_t decoPalletteSizeByte = decoPaletteSize * sizeof(td::Color);
+
+	a_Header.m_DecorationPalette.resize(decoPaletteSize);
+
+	memcpy(reinterpret_cast<std::uint8_t*>(a_Header.m_DecorationPalette.data()), a_Buffer.data() + a_Buffer.GetReadOffset(),
+		decoPalletteSizeByte);
+
+	a_Buffer.SetReadOffset(a_Buffer.GetReadOffset() + decoPalletteSizeByte);
+
+	a_Buffer >> a_Header.m_Background;
+
+	td::utils::shape::Rectangle redCastle, blueCastle;
+
+	a_Buffer >> a_Header.m_RedSpawn >> redCastle;
+	a_Buffer >> a_Header.m_BlueSpawn >> blueCastle;
+
+	a_Header.m_RedCastle.SetShape(redCastle);
+	a_Header.m_BlueCastle.SetShape(blueCastle);
+
+	std::uint64_t tilePaletteSize;
+	a_Buffer >> tilePaletteSize;
+
+	a_Header.m_TilePalette.reserve(tilePaletteSize);
+
+	for (std::uint64_t tileNumber = 0; tileNumber < tilePaletteSize; tileNumber++) {
+		td::game::TilePtr tile;
+		a_Buffer >> tile;
+		a_Header.m_TilePalette.push_back(tile);
+	}
+
+	a_Buffer >> a_Header.m_SpawnColorPalette;
+}
+
+typedef std::vector<uint64_t> ChunkPackedData;
+
+const int BITS_IN_BYTE = 8;
+const int BITS_IN_LONG = BITS_IN_BYTE * sizeof(std::uint64_t);
+
+static unsigned int countBits(unsigned int number) {
+	// log function in base 2
+	// take only integer part
+	return static_cast<unsigned int>(std::log2(number) + 1);
+}
+
+
+template <>
+void ReadMessage(DataBuffer& a_Buffer, td::protocol::pdata::WorldData& a_WorldData) {
+	std::uint64_t chunkCount;
+	a_Buffer >> chunkCount;
+
+	for (std::uint64_t chunkNumber = 0; chunkNumber < chunkCount; chunkNumber++) {
+		td::game::ChunkPtr chunk = std::make_shared<td::game::Chunk>();
+
+		td::game::ChunkCoord chunkCoords;
+		a_Buffer >> chunkCoords.x >> chunkCoords.y;
+
+		std::uint64_t chunkPaletteSize;
+		// std::reverse(reinterpret_cast<std::uint8_t*>(&chunkPaletteSize), reinterpret_cast<std::uint8_t*>(&chunkPaletteSize) + 4);
+		a_Buffer >> chunkPaletteSize;
+
+		td::game::ChunkPalette chunkPalette(chunkPaletteSize);
+
+		memcpy(reinterpret_cast<void*>(chunkPalette.data()), a_Buffer.data() + a_Buffer.GetReadOffset(),
+			chunkPaletteSize * sizeof(td::game::ChunkPalette::value_type));
+		a_Buffer.SetReadOffset(a_Buffer.GetReadOffset() + chunkPaletteSize * sizeof(td::game::ChunkPalette::value_type));
+
+		chunk->palette = chunkPalette;
+
+		std::uint8_t bitsPerTile = countBits(chunkPaletteSize);
+
+		// A bitmask that contains bitsPerTile set bits
+		td::game::Chunk::ChunkData::value_type individualValueMask = ((1 << bitsPerTile) - 1);
+
+		ChunkPackedData chunkData(td::game::Chunk::ChunkSize / (BITS_IN_BYTE * sizeof(ChunkPackedData::value_type) / bitsPerTile), 0);
+
+		memcpy(reinterpret_cast<void*>(chunkData.data()), a_Buffer.data() + a_Buffer.GetReadOffset(),
+			chunkData.size() * sizeof(ChunkPackedData::value_type));
+		a_Buffer.SetReadOffset(a_Buffer.GetReadOffset() + chunkData.size() * sizeof(ChunkPackedData::value_type));
+
+		for (unsigned int tileNumber = 0; tileNumber < td::game::Chunk::ChunkSize; tileNumber++) {
+			std::size_t startLong = (tileNumber * bitsPerTile) / BITS_IN_LONG;
+			std::size_t startOffset = (tileNumber * bitsPerTile) % BITS_IN_LONG;
+			std::size_t endLong = ((tileNumber + 1) * bitsPerTile - 1) / BITS_IN_LONG;
+
+			td::game::Chunk::ChunkData::value_type value;
+			if (startLong == endLong) {
+				value = (chunkData[startLong] >> startOffset);
+			} else {
+				int endOffset = BITS_IN_LONG - startOffset;
+				value = (chunkData[startLong] >> startOffset | chunkData[endLong] << endOffset);
+			}
+			value &= individualValueMask;
+
+			chunk->tiles[tileNumber] = value;
+		}
+		a_WorldData.m_Chunks.insert({chunkCoords, chunk});
+	}
+}
+
+}  // namespace details
+}  // namespace sp
+
+class WorldApply : public td::protocol::PacketHandler {
+  private:
+	td::game::World& m_World;
+  public:
+	WorldApply(td::game::World& a_World) : m_World(a_World) {}
+
+	void Handle(const td::protocol::pdata::WorldHeader& a_Header) override {
+		m_World.LoadMap(a_Header);
+	}
+	void Handle(const td::protocol::pdata::WorldData& a_Data) override {
+		m_World.LoadMap(a_Data);
+	}
+};
 
 int main(int argc, char** argv) {
-	// Test visitor;
-	// td::protocol::packets::ChatMessage chat{{"coucou"}};
-	// visitor.Check(chat);
+	sp::DataBuffer buffer;
+	buffer.ReadFile("test/tdmap.tdmap2");
 
+	sp::DataBuffer buffer1 = sp::zlib::Decompress(buffer, 84);
+	buffer.SetReadOffset(buffer.GetReadOffset() + 83);
+	sp::DataBuffer buffer2 = sp::zlib::Decompress(buffer, 511);
+
+	td::protocol::packets::WorldHeaderPacket header;
+	header.Read(buffer1);
+
+	td::protocol::packets::WorldDataPacket data;
+	data.Read(buffer2);
+
+	td::game::World w;
+	WorldApply wa(w);
+
+	td::protocol::PacketDispatcher d;
+	d.RegisterHandler(td::protocol::PacketID::WorldData, &wa);
+	d.RegisterHandler(td::protocol::PacketID::WorldHeader, &wa);
+
+	d.Dispatch(header);
+	d.Dispatch(data);
+
+	td::Display display(1920, 1080, "Tower-Defense 2");
+
+	td::render::Camera cam;
+	cam.SetCamPos({77, 25, 13});
+	cam.UpdatePerspective(display.GetAspectRatio());
+
+	td::render::RenderPipeline renderer;
+	renderer.AddRenderer(std::make_unique<td::render::WorldRenderer>(cam, w));
+
+	while (!display.IsCloseRequested()) {
+		display.PollEvents();
+		renderer.Render();
+		display.Update();
+	}
 
-	td::protocol::commands::UpgradeTowerCommand com{1, 2};
-	std::cout << (unsigned)com.GetId() << std::endl;
-	td::protocol::CommandDispatcher disptacher;
 	return 0;
 }

src/td/Maths.cpp

@@ -0,0 +1,169 @@
+#include <td/Maths.h>
+
+#include <cassert>
+#include <cmath>
+
+namespace td {
+namespace maths {
+
+template <typename T>
+T Length(const Vec3<T>& vect) {
+	return std::sqrt(vect.x * vect.x + vect.y * vect.y + vect.z * vect.z);
+}
+
+template <typename T>
+Vec3<T> Normalize(const Vec3<T>& vect) {
+	T length = Length(vect);
+
+	return {vect.x / length, vect.y / length, vect.z / length};
+}
+
+template <typename T>
+Vec4<T> Normalize(const Vec4<T>& vect) {
+	T length = std::sqrt(vect.x * vect.x + vect.y * vect.y + vect.z * vect.z + vect.w * vect.w);
+
+	return {vect.x / length, vect.y / length, vect.z / length, vect.w / length};
+}
+
+template <typename T>
+T Dot(const Vec3<T>& vect, const Vec3<T>& other) {
+	return vect.x * other.x + vect.y * other.y + vect.z * other.z;
+}
+
+template <typename T>
+Vec3<T> Cross(const Vec3<T>& vect, const Vec3<T>& other) {
+	return {
+		vect.y * other.z - vect.z * other.y,
+		vect.z * other.x - vect.x * other.z,
+		vect.x * other.y - vect.y * other.x,
+	};
+}
+
+template <typename T>
+T Dot(const Vec4<T>& vect, const Vec4<T>& other) {
+	return vect.x * other.x + vect.y * other.y + vect.z * other.z + vect.w * other.w;
+}
+
+template <typename T>
+T Distance(const Vec3<T>& vect, const Vec3<T>& other) {
+	return Length(vect - other);
+}
+
+template <typename T>
+Vec4<T> Dot(const Mat4<T>& mat, const Vec4<T>& vect) {
+	return {mat.x0 * vect.x + mat.x1 * vect.y + mat.x2 * vect.z + mat.x3 * vect.w,
+		mat.y0 * vect.x + mat.y1 * vect.y + mat.y2 * vect.z + mat.y3 * vect.w,
+		mat.z0 * vect.x + mat.z1 * vect.y + mat.z2 * vect.z + mat.z3 * vect.w,
+		mat.w0 * vect.x + mat.w1 * vect.y + mat.w2 * vect.z + mat.w3 * vect.w};
+}
+
+template <typename T>
+Mat4<T> Dot(const Mat4<T>& mat, const Mat4<T>& other) {
+	Mat4<T> result{};
+
+	for (std::size_t i = 0; i < Mat4<T>::MATRIX_SIZE; i++) {
+		for (std::size_t j = 0; j < Mat4<T>::MATRIX_SIZE; j++) {
+			for (std::size_t k = 0; k < Mat4<T>::MATRIX_SIZE; k++) {
+				result.at(i, j) += mat.at(i, k) * other.at(k, j);
+			}
+		}
+	}
+
+	return result;
+}
+
+template <typename T>
+Mat4<T> Identity() {
+	Mat4<T> result{};
+
+	result.x0 = static_cast<T>(1);
+	result.y1 = static_cast<T>(1);
+	result.z2 = static_cast<T>(1);
+	result.w3 = static_cast<T>(1);
+
+	return result;
+}
+
+Mat4f Perspective(float fovY, float aspectRatio, float zNear, float zFar) {
+	const float tanHalfFovy = std::tan(fovY / 2.0f);
+
+	Mat4f result{};
+	result.x0 = 1.0f / (aspectRatio * tanHalfFovy);
+	result.y1 = 1.0f / (tanHalfFovy);
+	result.z2 = -(zFar + zNear) / (zFar - zNear);
+	result.z3 = -1.0f;
+	result.w2 = -(2.0f * zFar * zNear) / (zFar - zNear);
+
+	return result;
+}
+
+Mat4f Look(const Vec3f& eye, const Vec3f& center, const Vec3f& up) {
+	const Vec3f f = Normalize(center);
+	const Vec3f s = Normalize(Cross(f, up));
+	const Vec3f u = Cross(s, f);
+
+	Mat4f result = Identity<float>();
+	result.x0 = s.x;
+	result.y0 = s.y;
+	result.z0 = s.z;
+	result.x1 = u.x;
+	result.y1 = u.y;
+	result.z1 = u.z;
+	result.x2 = -f.x;
+	result.y2 = -f.y;
+	result.z2 = -f.z;
+	result.w0 = -Dot(s, eye);
+	result.w1 = -Dot(u, eye);
+	result.w2 = Dot(f, eye);
+
+	return result;
+}
+
+Mat4f Inverse(const Mat4f& mat) {
+	float s0 = mat.at(0, 0) * mat.at(1, 1) - mat.at(1, 0) * mat.at(0, 1);
+	float s1 = mat.at(0, 0) * mat.at(1, 2) - mat.at(1, 0) * mat.at(0, 2);
+	float s2 = mat.at(0, 0) * mat.at(1, 3) - mat.at(1, 0) * mat.at(0, 3);
+	float s3 = mat.at(0, 1) * mat.at(1, 2) - mat.at(1, 1) * mat.at(0, 2);
+	float s4 = mat.at(0, 1) * mat.at(1, 3) - mat.at(1, 1) * mat.at(0, 3);
+	float s5 = mat.at(0, 2) * mat.at(1, 3) - mat.at(1, 2) * mat.at(0, 3);
+
+	float c5 = mat.at(2, 2) * mat.at(3, 3) - mat.at(3, 2) * mat.at(2, 3);
+	float c4 = mat.at(2, 1) * mat.at(3, 3) - mat.at(3, 1) * mat.at(2, 3);
+	float c3 = mat.at(2, 1) * mat.at(3, 2) - mat.at(3, 1) * mat.at(2, 2);
+	float c2 = mat.at(2, 0) * mat.at(3, 3) - mat.at(3, 0) * mat.at(2, 3);
+	float c1 = mat.at(2, 0) * mat.at(3, 2) - mat.at(3, 0) * mat.at(2, 2);
+	float c0 = mat.at(2, 0) * mat.at(3, 1) - mat.at(3, 0) * mat.at(2, 1);
+
+	float det = s0 * c5 - s1 * c4 + s2 * c3 + s3 * c2 - s4 * c1 + s5 * c0;
+
+	assert(det != 0 && "Determinant equals 0 !");
+
+	float invdet = 1.0 / det;
+
+	Mat4f result;
+
+	result.at(0, 0) = (mat.at(1, 1) * c5 - mat.at(1, 2) * c4 + mat.at(1, 3) * c3) * invdet;
+	result.at(0, 1) = (-mat.at(0, 1) * c5 + mat.at(0, 2) * c4 - mat.at(0, 3) * c3) * invdet;
+	result.at(0, 2) = (mat.at(3, 1) * s5 - mat.at(3, 2) * s4 + mat.at(3, 3) * s3) * invdet;
+	result.at(0, 3) = (-mat.at(2, 1) * s5 + mat.at(2, 2) * s4 - mat.at(2, 3) * s3) * invdet;
+
+	result.at(1, 0) = (-mat.at(1, 0) * c5 + mat.at(1, 2) * c2 - mat.at(1, 3) * c1) * invdet;
+	result.at(1, 1) = (mat.at(0, 0) * c5 - mat.at(0, 2) * c2 + mat.at(0, 3) * c1) * invdet;
+	result.at(1, 2) = (-mat.at(3, 0) * s5 + mat.at(3, 2) * s2 - mat.at(3, 3) * s1) * invdet;
+	result.at(1, 3) = (mat.at(2, 0) * s5 - mat.at(2, 2) * s2 + mat.at(2, 3) * s1) * invdet;
+
+	result.at(2, 0) = (mat.at(1, 0) * c4 - mat.at(1, 1) * c2 + mat.at(1, 3) * c0) * invdet;
+	result.at(2, 1) = (-mat.at(0, 0) * c4 + mat.at(0, 1) * c2 - mat.at(0, 3) * c0) * invdet;
+	result.at(2, 2) = (mat.at(3, 0) * s4 - mat.at(3, 1) * s2 + mat.at(3, 3) * s0) * invdet;
+	result.at(2, 3) = (-mat.at(2, 0) * s4 + mat.at(2, 1) * s2 - mat.at(2, 3) * s0) * invdet;
+
+	result.at(3, 0) = (-mat.at(1, 0) * c3 + mat.at(1, 1) * c1 - mat.at(1, 2) * c0) * invdet;
+	result.at(3, 1) = (mat.at(0, 0) * c3 - mat.at(0, 1) * c1 + mat.at(0, 2) * c0) * invdet;
+	result.at(3, 2) = (-mat.at(3, 0) * s3 + mat.at(3, 1) * s1 - mat.at(3, 2) * s0) * invdet;
+	result.at(3, 3) = (mat.at(2, 0) * s3 - mat.at(2, 1) * s1 + mat.at(2, 2) * s0) * invdet;
+
+	return result;
+}
+
+}  // namespace maths
+}  // namespace td

src/td/common/DataBuffer.cpp

@@ -1,163 +0,0 @@
-#include <td/common/DataBuffer.h>
-
-#include <fstream>
-#include <iomanip>
-#include <sstream>
-
-#include <td/misc/Format.h>
-#include <td/misc/Log.h>
-
-namespace td {
-
-DataBuffer::DataBuffer() : m_ReadOffset(0) {}
-
-DataBuffer::DataBuffer(const DataBuffer& other) : m_Buffer(other.m_Buffer), m_ReadOffset(other.m_ReadOffset) {}
-
-DataBuffer::DataBuffer(DataBuffer&& other) : m_Buffer(std::move(other.m_Buffer)), m_ReadOffset(std::move(other.m_ReadOffset)) {}
-
-DataBuffer::DataBuffer(const std::string& str) : m_Buffer(str.begin(), str.end()), m_ReadOffset(0) {}
-
-DataBuffer::DataBuffer(const DataBuffer& other, Data::difference_type offset) : m_ReadOffset(0) {
-	m_Buffer.reserve(other.GetSize() - static_cast<std::size_t>(offset));
-	std::copy(other.m_Buffer.begin() + offset, other.m_Buffer.end(), std::back_inserter(m_Buffer));
-}
-
-DataBuffer& DataBuffer::operator<<(const std::string& str) {
-	std::size_t strlen = str.length() + 1;	// including null character
-	Resize(GetSize() + strlen);
-	std::memcpy(m_Buffer.data() + GetSize() - strlen, str.data(), strlen);
-	return *this;
-}
-
-DataBuffer& DataBuffer::operator<<(const DataBuffer& data) {
-	m_Buffer.insert(m_Buffer.end(), data.begin(), data.end());
-	return *this;
-}
-
-DataBuffer& DataBuffer::operator>>(std::string& str) {
-	std::size_t stringSize = strlen(reinterpret_cast<const char*>(m_Buffer.data()) + m_ReadOffset) + 1;	 // including null character
-	str.resize(stringSize);
-	std::copy(m_Buffer.begin() + static_cast<difference_type>(m_ReadOffset),
-		m_Buffer.begin() + static_cast<difference_type>(m_ReadOffset + stringSize), str.begin());
-	m_ReadOffset += stringSize;
-	str.resize(stringSize - 1);
-	return *this;
-}
-
-DataBuffer& DataBuffer::operator>>(DataBuffer& data) {
-	data.Resize(GetSize() - m_ReadOffset);
-	std::copy(m_Buffer.begin() + static_cast<difference_type>(m_ReadOffset), m_Buffer.end(), data.begin());
-	m_ReadOffset = m_Buffer.size();
-	return *this;
-}
-
-void DataBuffer::WriteSome(const char* buffer, std::size_t amount) {
-	std::size_t end_pos = m_Buffer.size();
-	m_Buffer.resize(m_Buffer.size() + amount);
-	std::memcpy(m_Buffer.data() + end_pos, buffer, amount);
-}
-
-void DataBuffer::WriteSome(const std::uint8_t* buffer, std::size_t amount) {
-	std::size_t end_pos = m_Buffer.size();
-	m_Buffer.resize(m_Buffer.size() + amount);
-	std::memcpy(m_Buffer.data() + end_pos, buffer, amount);
-}
-
-void DataBuffer::ReadSome(char* buffer, std::size_t amount) {
-	assert(m_ReadOffset + amount <= GetSize());
-	std::copy_n(m_Buffer.begin() + static_cast<difference_type>(m_ReadOffset), amount, buffer);
-	m_ReadOffset += amount;
-}
-
-
-void DataBuffer::ReadSome(std::uint8_t* buffer, std::size_t amount) {
-	assert(m_ReadOffset + amount <= GetSize());
-	std::copy_n(m_Buffer.begin() + static_cast<difference_type>(m_ReadOffset), amount, buffer);
-	m_ReadOffset += amount;
-}
-
-
-void DataBuffer::ReadSome(DataBuffer& buffer, std::size_t amount) {
-	assert(m_ReadOffset + amount <= GetSize());
-	buffer.Resize(amount);
-	std::copy_n(m_Buffer.begin() + static_cast<difference_type>(m_ReadOffset), amount, buffer.begin());
-	m_ReadOffset += amount;
-}
-
-
-DataBuffer& DataBuffer::operator=(const DataBuffer& other) {
-	m_Buffer = other.m_Buffer;
-	m_ReadOffset = other.m_ReadOffset;
-	return *this;
-}
-
-DataBuffer& DataBuffer::operator=(DataBuffer&& other) {
-	m_Buffer = std::move(other.m_Buffer);
-	m_ReadOffset = std::move(other.m_ReadOffset);
-	return *this;
-}
-
-void DataBuffer::SetReadOffset(std::size_t pos) {
-	assert(pos <= GetSize());
-	m_ReadOffset = pos;
-}
-
-std::size_t DataBuffer::GetSize() const {
-	return m_Buffer.size();
-}
-
-std::size_t DataBuffer::GetRemaining() const {
-	return m_Buffer.size() - m_ReadOffset;
-}
-
-DataBuffer::iterator DataBuffer::begin() {
-	return m_Buffer.begin();
-}
-
-DataBuffer::iterator DataBuffer::end() {
-	return m_Buffer.end();
-}
-
-DataBuffer::const_iterator DataBuffer::begin() const {
-	return m_Buffer.begin();
-}
-
-DataBuffer::const_iterator DataBuffer::end() const {
-	return m_Buffer.end();
-}
-
-std::ostream& operator<<(std::ostream& os, const DataBuffer& buffer) {
-	for (unsigned char u : buffer)
-		os << std::hex << std::setfill('0') << std::setw(2) << static_cast<int>(u) << " ";
-	os << std::dec;
-	return os;
-}
-
-bool DataBuffer::ReadFile(const std::string& fileName) {
-	try {
-		std::ifstream file(fileName, std::istream::binary);
-		std::ostringstream ss;
-		ss << file.rdbuf();
-		const std::string& s = ss.str();
-		m_Buffer = DataBuffer::Data(s.begin(), s.end());
-		m_ReadOffset = 0;
-	} catch (std::exception& e) {
-		utils::LOGE(utils::Format("[IO] Failed to read file %s ! reason : %s", fileName.c_str(), e.what()));
-		return false;
-	}
-	return m_Buffer.size() > 0;
-}
-
-bool DataBuffer::WriteFile(const std::string& fileName) const {
-	try {
-		std::ofstream file(fileName, std::ostream::binary);
-		file.write(reinterpret_cast<const char*>(m_Buffer.data()), static_cast<std::streamsize>(m_Buffer.size()));
-		file.flush();
-	} catch (std::exception& e) {
-		utils::LOGE(utils::Format("[IO] Failed to read file %s ! reason : %s", fileName.c_str(), e.what()));
-		return false;
-	}
-	return true;
-}
-
-}  // namespace td

src/td/common/VarInt.cpp

@@ -1,52 +0,0 @@
-#include <td/common/VarInt.h>
-
-#include <stdexcept>
-#include <td/common/DataBuffer.h>
-
-namespace td {
-
-static constexpr int SEGMENT_BITS = 0x7F;
-static constexpr int CONTINUE_BIT = 0x80;
-
-std::size_t VarInt::GetSerializedLength() const {
-	DataBuffer buffer;
-	buffer << *this;
-	return buffer.GetSize();
-}
-
-DataBuffer& operator<<(DataBuffer& out, const VarInt& var) {
-	std::uint64_t value = var.m_Value;
-	while (true) {
-		if ((value & ~static_cast<std::uint64_t>(SEGMENT_BITS)) == 0) {
-			out << static_cast<std::uint8_t>(value);
-			return out;
-		}
-
-		out << static_cast<std::uint8_t>((value & SEGMENT_BITS) | CONTINUE_BIT);
-
-		value >>= 7;
-	}
-}
-
-DataBuffer& operator>>(DataBuffer& in, VarInt& var) {
-	var.m_Value = 0;
-	unsigned int position = 0;
-	std::uint8_t currentByte;
-
-	while (true) {
-		in.ReadSome(&currentByte, 1);
-		var.m_Value |= static_cast<std::uint64_t>(currentByte & SEGMENT_BITS) << position;
-
-		if ((currentByte & CONTINUE_BIT) == 0)
-			break;
-
-		position += 7;
-
-		if (position >= 8 * sizeof(var.m_Value))
-			throw std::runtime_error("VarInt is too big");
-	}
-
-	return in;
-}
-
-}  // namespace td

src/td/game/World.cpp

@@ -0,0 +1,59 @@
+#include <td/game/World.h>
+
+namespace td {
+namespace game {
+
+World::World() : m_Teams{Team{TeamColor::Red}, Team{TeamColor::Blue}} {
+	
+}
+
+const Color* World::GetTileColor(TilePtr tile) const {
+	switch (tile->GetType()) {
+		case TileType::Tower: {
+			TowerTile* towerTile = dynamic_cast<TowerTile*>(tile.get());
+			return &m_TowerPlacePalette[towerTile->color_palette_ref];
+		}
+		case TileType::Walk: {
+			return &m_WalkablePalette;
+		}
+		case TileType::Decoration: {
+			DecorationTile* towerTile = dynamic_cast<DecorationTile*>(tile.get());
+			return &m_DecorationPalette[towerTile->color_palette_ref];
+			break;
+		}
+		default: {
+			return nullptr;
+		}
+	}
+	return nullptr;
+}
+
+bool World::LoadMap(const protocol::pdata::WorldHeader& a_WorldHeader) {
+	m_TowerPlacePalette = a_WorldHeader.m_TowerPlacePalette;
+	m_WalkablePalette = a_WorldHeader.m_WalkablePalette;
+	m_DecorationPalette = a_WorldHeader.m_DecorationPalette;
+	m_Background = a_WorldHeader.m_Background;
+
+	GetRedTeam().GetSpawn() = a_WorldHeader.m_RedSpawn;
+	GetBlueTeam().GetSpawn() = a_WorldHeader.m_BlueSpawn;
+
+	m_SpawnColorPalette = a_WorldHeader.m_SpawnColorPalette;
+
+	GetRedTeam().GetCastle() = a_WorldHeader.m_RedCastle;
+	GetRedTeam().GetCastle().SetTeam(&GetRedTeam());
+
+	GetBlueTeam().GetCastle() = a_WorldHeader.m_BlueCastle;
+	GetBlueTeam().GetCastle().SetTeam(&GetBlueTeam());
+
+	m_TilePalette = a_WorldHeader.m_TilePalette;
+
+	return true;
+}
+
+bool World::LoadMap(const protocol::pdata::WorldData& a_WorldData) {
+	m_Chunks = a_WorldData.m_Chunks;
+	return true;
+}
+
+}  // namespace game
+}  // namespace td

src/td/input/Display.cpp

@@ -0,0 +1,156 @@
+#include <td/input/Display.h>
+
+#include <GL/glew.h>
+#include <SDL3/SDL.h>
+#include <imgui.h>
+#include <imgui_impl_opengl3.h>
+#include <imgui_impl_sdl3.h>
+
+#include <td/misc/Format.h>
+#include <td/misc/Log.h>
+
+namespace td {
+
+Display::Display(int a_Width, int a_Height, const std::string& a_Title) :
+	m_LastWidth(0), m_LastHeight(0), m_AspectRatio(1), m_ShouldClose(false) {
+
+	m_Window = SDL_CreateWindow(a_Title.c_str(), a_Width, a_Height, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
+
+	m_LastWidth = a_Width;
+	m_LastHeight = a_Height;
+	m_AspectRatio = (float)m_LastWidth / m_LastHeight;
+
+	// Prepare and create context
+#ifdef __ANDROID__
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
+#else
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
+#endif
+	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
+	SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 6);
+	SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
+	SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0);
+
+	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
+	SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
+
+	m_GLContext = SDL_GL_CreateContext(m_Window);
+
+	if (!m_GLContext) {
+		utils::LOGE(utils::Format("Could not create context! SDL error: %s", SDL_GetError()));
+	}
+
+	int major, minor, mask;
+	int r, g, b, a, depth;
+	SDL_GL_GetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, &mask);
+	SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &major);
+	SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &minor);
+
+	SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &r);
+	SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &g);
+	SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &b);
+	SDL_GL_GetAttribute(SDL_GL_ALPHA_SIZE, &a);
+
+	SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &depth);
+
+	const char* mask_desc;
+
+	if (mask & SDL_GL_CONTEXT_PROFILE_CORE) {
+		mask_desc = "core";
+	} else if (mask & SDL_GL_CONTEXT_PROFILE_COMPATIBILITY) {
+		mask_desc = "compatibility";
+	} else if (mask & SDL_GL_CONTEXT_PROFILE_ES) {
+		mask_desc = "es";
+	} else {
+		mask_desc = "?";
+	}
+
+	utils::LOG(utils::Format(
+		"GL Context : %i.%i %s, Color : R:%i G:%i B:%i A:%i, Depth bits : %i", major, minor, mask_desc, r, g, b, a, depth));
+
+	SDL_GL_MakeCurrent(m_Window, m_GLContext);
+
+	GLenum error = glewInit();
+	if (error) {
+		utils::LOGE(utils::Format("Error initializing glew : %s", glewGetErrorString(error)));
+	}
+
+	// WindowResizeEvent(WindowWidth, WindowHeight);
+
+	// Setup Dear ImGui context
+	IMGUI_CHECKVERSION();
+	ImGui::CreateContext();
+	ImGuiIO& io = ImGui::GetIO();
+	(void)io;
+	io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
+	io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;   // Enable Gamepad Controls
+
+	// Setup Dear ImGui style
+	ImGui::StyleColorsDark();
+	// ImGui::StyleColorsLight();
+
+	// Setup scaling
+	float main_scale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
+	ImGuiStyle& style = ImGui::GetStyle();
+	style.ScaleAllSizes(main_scale);  // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this
+									  // requires resetting Style + calling this again)
+	style.FontScaleDpi = main_scale;  // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave
+									  // both here for documentation purpose)
+
+	// Setup Platform/Renderer backends
+	ImGui_ImplSDL3_InitForOpenGL(m_Window, m_GLContext);
+	ImGui_ImplOpenGL3_Init("#version 330");
+}
+
+
+void Display::PollEvents() {
+	SDL_Event event;
+	while (SDL_PollEvent(&event)) {
+		switch (event.type) {
+			case SDL_EVENT_QUIT:
+			case SDL_EVENT_WINDOW_CLOSE_REQUESTED: {
+				m_ShouldClose = true;
+			}
+
+			case SDL_EVENT_WINDOW_RESIZED: {
+				m_LastWidth = event.window.data1;
+				m_LastHeight = event.window.data2;
+				m_AspectRatio = (float)m_LastWidth / m_LastHeight;
+			}
+
+			default:
+				break;
+		}
+		ImGui_ImplSDL3_ProcessEvent(&event);
+	}
+	// Start the Dear ImGui frame
+	ImGui_ImplOpenGL3_NewFrame();
+	ImGui_ImplSDL3_NewFrame();
+	ImGui::NewFrame();
+}
+
+void Display::Update() {
+	ImGui::Render();
+	ImGuiIO& io = ImGui::GetIO();
+	glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y);
+	// glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
+	ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+	SDL_GL_SwapWindow(m_Window);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+}
+
+
+Display::~Display() {
+	ImGui_ImplOpenGL3_Shutdown();
+	ImGui_ImplSDL3_Shutdown();
+	ImGui::DestroyContext();
+	SDL_GL_DestroyContext(m_GLContext);
+	SDL_DestroyWindow(m_Window);
+	SDL_Quit();
+}
+
+}  // namespace td

src/td/render/Camera.cpp

@@ -0,0 +1,26 @@
+#include <td/render/Camera.h>
+
+#include <cmath>
+
+namespace td {
+namespace render {
+
+void Camera::UpdatePerspective(float a_AspectRatio) {
+	m_ProjectionMatrix = maths::Perspective(80.0f / 180.0f * PI, a_AspectRatio, 0.1f, 160.0f);
+	m_InvProjectionMatrix = maths::Inverse(m_ProjectionMatrix);
+}
+
+void Camera::SetCamPos(const Vec3f& a_NewPos) {
+	Vec3f front = {
+		std::cos(m_Yaw) * std::cos(m_Pitch),
+		std::sin(m_Pitch),
+		std::sin(m_Yaw) * std::cos(m_Pitch)
+	};
+
+	m_CamPos = a_NewPos;
+	m_ViewMatrix = maths::Look(m_CamPos, front, { 0, 1, 0 });
+	m_InvViewMatrix = maths::Transpose(maths::Inverse(m_ViewMatrix));  // why transpose ? I don't know
+}
+
+}  // namespace render
+}  // namespace td

src/td/render/Renderer.cpp

@@ -0,0 +1,26 @@
+#include <td/render/Renderer.h>
+
+#include <td/render/OpenGL.h>
+
+namespace td {
+namespace render {
+
+void Renderer::Render(const GL::VertexArray& a_Vao) {
+	a_Vao.Bind();
+	glDrawArrays(GL_TRIANGLES, 0, a_Vao.GetVertexCount());
+	// glDrawElements(GL_TRIANGLES, a_Vao.GetVertexCount(), GL_UNSIGNED_INT, nullptr);
+	a_Vao.Unbind();
+}
+
+RenderPipeline::RenderPipeline() {
+	glEnable(GL_TEXTURE_2D);
+	glEnable(GL_BLEND);
+	glEnable(GL_DEPTH_TEST);
+	glEnable(GL_CULL_FACE);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	glDepthFunc(GL_LESS);
+	glFrontFace(GL_CCW);
+}
+
+}  // namespace render
+}  // namespace td

src/td/render/loader/GLLoader.cpp

@@ -0,0 +1,99 @@
+#include <td/render/loader/GLLoader.h>
+
+#include <td/render/OpenGL.h>
+
+namespace td {
+namespace GL {
+
+VertexArray::~VertexArray() {
+	if (m_ID != 0)
+		glDeleteVertexArrays(1, &m_ID);
+}
+
+VertexArray::VertexArray(ElementBuffer&& indicies) : m_ElementBuffer(std::move(indicies)) {
+	glGenVertexArrays(1, &m_ID);
+	Bind();
+	BindElementArrayBuffer();
+	// Unbind();
+}
+
+void VertexArray::Bind() const {
+	glBindVertexArray(m_ID);
+}
+
+void VertexArray::Unbind() const {
+	glBindVertexArray(0);
+}
+
+void VertexArray::BindVertexBuffer(VertexBuffer&& VertexBuffer) {
+	VertexBuffer.Bind();
+	VertexBuffer.BindVertexAttribs();
+	m_VertexBuffers.push_back(std::move(VertexBuffer));
+}
+
+void VertexArray::BindElementArrayBuffer() {
+	m_ElementBuffer.Bind();
+}
+
+VertexBuffer::~VertexBuffer() {
+	if (m_ID != 0)
+		glDeleteBuffers(1, &m_ID);
+}
+
+VertexBuffer::VertexBuffer(const std::vector<float>& data, unsigned int stride) : m_DataStride(stride) {
+	glGenBuffers(1, &m_ID);
+	Bind();
+	glBufferData(GL_ARRAY_BUFFER, static_cast<GLsizeiptr>(data.size() * sizeof(float)), nullptr, GL_STATIC_DRAW);
+	glBufferSubData(GL_ARRAY_BUFFER, 0, static_cast<GLsizeiptr>(data.size() * sizeof(float)), data.data());
+	Unbind();
+}
+
+void VertexBuffer::Bind() const {
+	glBindBuffer(GL_ARRAY_BUFFER, m_ID);
+}
+
+void VertexBuffer::Unbind() const {
+	glBindBuffer(GL_ARRAY_BUFFER, 0);
+}
+
+void VertexBuffer::AddVertexAttribPointer(unsigned int index, unsigned int coordinateSize, unsigned int offset) {
+	VertexAttribPointer pointer {
+		.m_Index = index,
+		.m_Size = coordinateSize,
+		.m_Offset = offset
+	};
+	m_VertexAttribs.push_back(pointer);
+}
+
+void VertexBuffer::BindVertexAttribs() const {
+	for (const VertexAttribPointer& pointer : m_VertexAttribs) {
+		glVertexAttribPointer(pointer.m_Index, static_cast<GLint>(pointer.m_Size), GL_FLOAT, false, m_DataStride * sizeof(float),
+		reinterpret_cast<GLvoid*>(static_cast<std::size_t>(pointer.m_Offset)));
+		glEnableVertexAttribArray(pointer.m_Index);
+	}
+}
+
+ElementBuffer::ElementBuffer(const std::vector<unsigned int>& indicies) {
+	m_TriangleCount = indicies.size();
+	glGenBuffers(1, &m_ID);
+	Bind();
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, static_cast<GLsizeiptr>(indicies.size() * sizeof(unsigned int)), nullptr, GL_STATIC_DRAW);
+	glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, static_cast<GLsizeiptr>(indicies.size() * sizeof(unsigned int)), indicies.data());
+	Unbind();
+}
+
+ElementBuffer::~ElementBuffer() {
+	if (m_ID != 0)
+		glDeleteBuffers(1, &m_ID);
+}
+
+void ElementBuffer::Bind() const {
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_ID);
+}
+
+void ElementBuffer::Unbind() const {
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+}
+
+}  // namespace GL
+}  // namespace td

src/td/render/loader/WorldLoader.cpp

@@ -0,0 +1,218 @@
+#include <td/render/loader/WorldLoader.h>
+
+#include <iostream>
+#include <string.h>
+
+#include <td/game/World.h>
+
+namespace td {
+namespace render {
+
+namespace WorldLoader {
+
+const static int POSITION_VERTEX_SIZE = 3;
+const static int TEXTURE_VERTEX_SIZE = 2;
+
+GL::VertexArray LoadWorldModel(const td::game::World* world) {
+	std::vector<float> positions;
+	std::vector<float> colors;
+
+	for (const auto& chunkInfo : world->GetChunks()) {
+		const td::game::ChunkCoord& coords = chunkInfo.first;
+		td::game::ChunkPtr chunk = chunkInfo.second;
+
+		std::int32_t chunkX = coords.x * td::game::Chunk::ChunkWidth;
+		std::int32_t chunkY = coords.y * td::game::Chunk::ChunkHeight;
+
+		for (int tileY = 0; tileY < td::game::Chunk::ChunkHeight; tileY++) {
+			for (int tileX = 0; tileX < td::game::Chunk::ChunkWidth; tileX++) {
+				int tileNumber = tileY * td::game::Chunk::ChunkWidth + tileX;
+				td::game::TileIndex tileIndex = chunk->GetTileIndex(tileNumber);
+				td::game::TilePtr tile = world->GetTilePtr(tileIndex);
+
+				if (tile == nullptr)
+					continue;
+
+				positions.insert(
+					positions.end(), {static_cast<float>(chunkX + tileX + 1), 0, static_cast<float>(chunkY + tileY),
+										 static_cast<float>(chunkX + tileX), 0, static_cast<float>(chunkY + tileY),
+										 static_cast<float>(chunkX + tileX), 0, static_cast<float>(chunkY + tileY + 1),
+
+										 static_cast<float>(chunkX + tileX + 1), 0, static_cast<float>(chunkY + tileY),
+										 static_cast<float>(chunkX + tileX), 0, static_cast<float>(chunkY + tileY + 1),
+										 static_cast<float>(chunkX + tileX + 1), 0, static_cast<float>(chunkY + tileY + 1)});
+
+				const td::Color* tileColor = world->GetTileColor(tile);
+
+				for (int i = 0; i < 6; i++) {
+					int color = 255;
+					color |= tileColor->r << 24;
+					color |= tileColor->g << 16;
+					color |= tileColor->b << 8;
+
+					int newColorIndex = colors.size();
+					colors.push_back(0);
+
+					memcpy(colors.data() + newColorIndex, &color, 1 * sizeof(int));
+				}
+			}
+		}
+	}
+
+	for (int spawnColor = 0; spawnColor < 2; spawnColor++) {
+		const game::Spawn& spawn = world->GetTeam(TeamColor(spawnColor)).GetSpawn();
+		float fromX = spawn.GetTopLeft().GetX(), toX = spawn.GetBottomRight().GetX();
+		float fromY = spawn.GetTopLeft().GetY(), toY = spawn.GetBottomRight().GetY();
+
+		positions.insert(positions.end(), {fromX, 0, fromY, fromX, 0, toY, toX, 0, fromY, fromX, 0, toY, toX, 0, toY, toX, 0, fromY});
+
+		for (int i = 0; i < 6; i++) {
+			int color = 255;
+			color |= world->GetSpawnColor(TeamColor(spawnColor)).r << 24;
+			color |= world->GetSpawnColor(TeamColor(spawnColor)).g << 16;
+			color |= world->GetSpawnColor(TeamColor(spawnColor)).b << 8;
+
+			int newColorIndex = colors.size();
+			colors.push_back(0);
+
+			memcpy(colors.data() + newColorIndex, &color, 1 * sizeof(int));
+		}
+	}
+
+	for (int castleColor = 0; castleColor < 2; castleColor++) {
+		const game::TeamCastle& castle = world->GetTeam(TeamColor(castleColor)).GetCastle();
+		float fromX = castle.GetTopLeft().GetX(), toX = castle.GetBottomRight().GetX();
+		float fromY = castle.GetTopLeft().GetY(), toY = castle.GetBottomRight().GetY();
+
+		positions.insert(positions.end(), {fromX, 0, fromY, fromX, 0, toY, toX, 0, fromY, fromX, 0, toY, toX, 0, toY, toX, 0, fromY});
+
+		for (int i = 0; i < 6; i++) {
+			int color = 255;
+			color |= world->GetSpawnColor(TeamColor(castleColor)).r << 24;
+			color |= world->GetSpawnColor(TeamColor(castleColor)).g << 16;
+			color |= world->GetSpawnColor(TeamColor(castleColor)).b << 8;
+
+			int newColorIndex = colors.size();
+			colors.push_back(0);
+
+			memcpy(colors.data() + newColorIndex, &color, 1 * sizeof(int));
+		}
+	}
+
+	GL::VertexBuffer positionVBO(positions, POSITION_VERTEX_SIZE);
+	positionVBO.AddVertexAttribPointer(0, POSITION_VERTEX_SIZE, 0);
+	GL::VertexBuffer colorVBO(colors, 1);
+	colorVBO.AddVertexAttribPointer(1, 1, 0);
+
+	std::vector<unsigned int> indexes(positions.size() / 3, 0);
+	for (size_t i = 0; i < indexes.size(); i++) {
+		indexes[i] = i + 1;
+	}
+
+	GL::ElementBuffer indexVBO(indexes);
+
+	GL::VertexArray worldVao(std::move(indexVBO));	// each pos = 3 vertecies
+	worldVao.Bind();
+	worldVao.BindVertexBuffer(std::move(positionVBO));
+	worldVao.BindVertexBuffer(std::move(colorVBO));
+	worldVao.Unbind();
+	return worldVao;
+}
+
+GL::VertexArray LoadTileSelectModel() {
+	std::vector<float> positions = {
+		-0.5f,
+		-0.5f,
+		-1.0f,
+
+		0.5f,
+		-0.5f,
+		-1.0f,
+
+		0.0f,
+		0.5f,
+		-1.0f,
+
+		1,
+		.01,
+		1,
+
+		0,
+		.01,
+		1,
+		
+		0,
+		1,
+		1,
+	};
+
+	int color = 255 << 24 | 255 << 16 | 255 << 8 | 150;
+	float colorFloat;
+
+	memcpy(reinterpret_cast<std::uint8_t*>(&colorFloat), &color, sizeof(float));
+
+	std::vector<float> colors(6, colorFloat);
+
+	GL::VertexBuffer positionVBO(positions, POSITION_VERTEX_SIZE);
+	positionVBO.AddVertexAttribPointer(0, POSITION_VERTEX_SIZE, 0);
+	GL::VertexBuffer colorVBO(colors, 1);
+	colorVBO.AddVertexAttribPointer(1, 1, 0);
+
+	std::vector<unsigned int> indexes(positions.size() / 3, 0);
+	for (size_t i = 0; i < indexes.size(); i++) {
+		indexes[i] = i + 1;
+	}
+	GL::ElementBuffer indexVBO(indexes);
+
+	GL::VertexArray tileSelectVao(std::move(indexVBO));
+	tileSelectVao.Bind();
+	tileSelectVao.BindVertexBuffer(std::move(positionVBO));
+	tileSelectVao.BindVertexBuffer(std::move(colorVBO));
+	tileSelectVao.Unbind();
+
+	return tileSelectVao;
+}
+
+RenderData LoadTowerModel(game::TowerPtr tower) {
+	RenderData renderData;
+
+	float towerX, towerDX;
+	float towerY, towerDY;
+
+	if (tower->GetSize() == game::TowerSize::Little) {
+		towerX = tower->GetCenterX() - 1.5f;
+		towerDX = tower->GetCenterX() + 1.5f;
+
+		towerY = tower->GetCenterY() - 1.5f;
+		towerDY = tower->GetCenterY() + 1.5f;
+	} else {
+		towerX = tower->GetCenterX() - 2.5f;
+		towerDX = tower->GetCenterX() + 2.5f;
+
+		towerY = tower->GetCenterY() - 2.5f;
+		towerDY = tower->GetCenterY() + 2.5f;
+	}
+	std::vector<float> positions = {towerDX, 0.001, towerY, towerX, 0.001, towerY, towerX, 0.001, towerDY, towerDX, 0.001, towerY,
+		towerX, 0.001, towerDY, towerDX, 0.001, towerDY};
+
+	renderData.positions = positions;
+
+	std::uint8_t towerType = static_cast<std::uint8_t>(tower->GetType());
+	std::uint8_t r = 10 * towerType + 40, g = 5 * towerType + 30, b = 10 * towerType + 20;
+
+	float colorFloat;
+	int color = r << 24 | g << 16 | b << 8 | 255;
+	memcpy(&colorFloat, &color, sizeof(int));
+
+	std::vector<float> colors(6, colorFloat);
+	renderData.colors = colors;
+
+	return renderData;
+}
+
+
+}  // namespace WorldLoader
+
+
+}  // namespace render
+}  // namespace td

src/td/render/renderer/WorldRenderer.cpp

@@ -0,0 +1,26 @@
+#include <td/render/renderer/WorldRenderer.h>
+
+#include <td/render/loader/WorldLoader.h>
+
+#include <imgui.h>
+
+namespace td {
+namespace render {
+
+WorldRenderer::WorldRenderer(Camera& a_Camera, const game::World& a_World) : Renderer(a_Camera), m_World(a_World){
+	m_WorldVao = std::make_unique<GL::VertexArray>(std::move(WorldLoader::LoadWorldModel(&a_World)));
+}
+
+WorldRenderer::~WorldRenderer() {}
+
+void WorldRenderer::Render() {
+	m_Shader.Start();
+	m_Shader.SetProjectionMatrix(m_Camera.GetProjectionMatrix());
+	m_Shader.SetViewMatrix(m_Camera.GetViewMatrix());
+	Renderer::Render(*m_WorldVao);
+	ImGui::ShowDemoWindow();
+}
+
+
+}  // namespace render
+}  // namespace td

src/td/render/shader/EntityShader.cpp

@@ -0,0 +1,123 @@
+#include <td/render/shader/EntityShader.h>
+
+namespace td {
+namespace shader {
+
+// TODO: update ES shaders
+
+#ifdef __ANDROID__
+static const char vertexSource[] =
+R"(#version 300 es
+
+precision mediump float;
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in int color;
+
+uniform mat4 viewMatrix;
+uniform mat4 projectionMatrix;
+uniform vec3 modelPosition;
+
+flat out int pass_color;
+
+void main(void){
+	pass_color = color;
+	gl_Position = projectionMatrix * viewMatrix * vec4(position + modelPosition, 1.0);
+}
+)";
+
+static const char fragmentSource[] =
+R"(#version 300 es
+
+precision mediump float;
+
+flat in int pass_color;
+
+out vec4 out_color;
+
+uniform vec3 ColorEffect;
+
+void main(void){
+
+    float r = float(pass_color >> 24 & 0xFF) / 255.0;
+    float g = float(pass_color >> 16 & 0xFF) / 255.0;
+    float b = float(pass_color >> 8 & 0xFF) / 255.0;
+    float a = float(pass_color & 0xFF) / 255.0; 
+	vec3 intermediate_color = vec3(r, g, b) * ColorEffect;
+	out_color = vec4(intermediate_color, a);
+
+}
+)";
+#else
+static const char vertexSource[] = R"(
+#version 330
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in vec2 textureCoords;
+
+uniform mat4 viewMatrix;
+uniform mat4 projectionMatrix;
+uniform vec3 modelPosition;
+
+out vec2 pass_textureCoords;
+
+void main(void){
+	pass_textureCoords = textureCoords;
+	gl_Position = projectionMatrix * viewMatrix * vec4(position + modelPosition, 1.0);
+}
+)";
+
+static const char fragmentSource[] = R"(
+#version 330
+
+in vec2 pass_textureCoords;
+
+out vec4 out_color;
+
+uniform vec3 ColorEffect;
+uniform sampler2D textureSampler;
+
+void main(void){
+
+	vec4 color = vec4(ColorEffect, 1.0) * texture(textureSampler, pass_textureCoords);
+
+	if (color.a <= 0.1)
+		discard;
+
+	out_color = color;
+
+}
+)";
+#endif
+
+EntityShader::EntityShader() : ShaderProgram() {}
+
+void EntityShader::LoadShader() {
+	ShaderProgram::LoadProgram(vertexSource, fragmentSource);
+}
+
+void EntityShader::GetAllUniformLocation() {
+	m_LocationColorEffect = static_cast<unsigned int>(GetUniformLocation("ColorEffect"));
+	m_LocationViewMatrix = static_cast<unsigned int>(GetUniformLocation("viewMatrix"));
+	m_LocationPosition = static_cast<unsigned int>(GetUniformLocation("modelPosition"));
+	m_LocationProjectionMatrix = static_cast<unsigned int>(GetUniformLocation("projectionMatrix"));
+}
+
+void EntityShader::SetColorEffect(const Vec3f& color) {
+	LoadVector(m_LocationColorEffect, color);
+}
+
+void EntityShader::SetProjectionMatrix(const Mat4f& proj) const {
+	LoadMat4(m_LocationProjectionMatrix, proj);
+}
+
+void EntityShader::SetViewMatrix(const Mat4f& view) const {
+	LoadMat4(m_LocationViewMatrix, view);
+}
+
+void EntityShader::SetModelPos(const Vec3f& pos) const {
+	LoadVector(m_LocationPosition, pos);
+}
+
+} // namespace shader
+} // namespace td

src/td/render/shader/ShaderProgram.cpp

@@ -0,0 +1,145 @@
+/*
+ * ShaderProgram.cpp
+ *
+ *  Created on: 31 janv. 2020
+ *      Author: simon
+ */
+
+#include <td/render/shader/ShaderProgram.h>
+#include <td/misc/Log.h>
+#include <td/misc/Format.h>
+
+#include <fstream>
+#include <iostream>
+#include <sstream>
+#include <vector>
+
+namespace td {
+namespace shader {
+
+ShaderProgram::ShaderProgram() :
+	m_ProgramID(0), m_VertexShaderID(0), m_FragmentShaderID(0) {
+}
+
+ShaderProgram::~ShaderProgram() {
+	CleanUp();
+}
+
+void ShaderProgram::Start() const {
+	glUseProgram(m_ProgramID);
+}
+
+void ShaderProgram::Stop() const {
+	glUseProgram(0);
+}
+
+int ShaderProgram::GetUniformLocation(const std::string& uniformName) const {
+	const int location = glGetUniformLocation(m_ProgramID, uniformName.c_str());
+	if (location == -1) {
+		utils::LOGD(utils::Format("Warning ! Uniform variable %s not found !", uniformName.c_str()));
+	}
+	return location;
+}
+
+void ShaderProgram::LoadFloat(unsigned int location, float value) const {
+	glUniform1f(static_cast<GLint>(location), value);
+}
+
+void ShaderProgram::LoadInt(unsigned int location, int value) const {
+	glUniform1i(static_cast<GLint>(location), value);
+}
+
+void ShaderProgram::LoadVector(unsigned int location,
+	const Vec2f& vector) const {
+	glUniform2f(static_cast<GLint>(location), vector.x, vector.y);
+}
+
+void ShaderProgram::LoadVector(unsigned int location,
+	const Vec3f& vector) const {
+	glUniform3f(static_cast<GLint>(location), vector.x, vector.y, vector.z);
+}
+
+void ShaderProgram::LoadBoolean(unsigned int location, bool value) const {
+	glUniform1i(static_cast<GLint>(location), value);
+}
+
+void ShaderProgram::LoadMat4(unsigned int location, const Mat4f& mat) const {
+	glUniformMatrix4fv(static_cast<GLint>(location), 1, false, reinterpret_cast<const float*>(&mat));
+}
+
+void ShaderProgram::CleanUp() const {
+	Stop();
+	glDetachShader(m_ProgramID, m_VertexShaderID);
+	glDetachShader(m_ProgramID, m_FragmentShaderID);
+	glDeleteShader(m_VertexShaderID);
+	glDeleteShader(m_FragmentShaderID);
+	glDeleteProgram(m_ProgramID);
+}
+
+void ShaderProgram::LoadProgramFile(const std::string& vertexFile,
+	const std::string& fragmentFile) {
+	m_VertexShaderID = static_cast<unsigned int>(LoadShaderFromFile(vertexFile, GL_VERTEX_SHADER));
+	m_FragmentShaderID = static_cast<unsigned int>(LoadShaderFromFile(fragmentFile, GL_FRAGMENT_SHADER));
+	m_ProgramID = glCreateProgram();
+	glAttachShader(m_ProgramID, m_VertexShaderID);
+	glAttachShader(m_ProgramID, m_FragmentShaderID);
+	glLinkProgram(m_ProgramID);
+	glValidateProgram(m_ProgramID);
+	GetAllUniformLocation();
+}
+
+void ShaderProgram::LoadProgram(const std::string& vertexSource,
+	const std::string& fragmentSource) {
+	m_VertexShaderID = static_cast<unsigned int>(LoadShader(vertexSource, GL_VERTEX_SHADER));
+	m_FragmentShaderID = static_cast<unsigned int>(LoadShader(fragmentSource, GL_FRAGMENT_SHADER));
+	m_ProgramID = glCreateProgram();
+	glAttachShader(m_ProgramID, m_VertexShaderID);
+	glAttachShader(m_ProgramID, m_FragmentShaderID);
+	glLinkProgram(m_ProgramID);
+	glValidateProgram(m_ProgramID);
+	GetAllUniformLocation();
+}
+
+unsigned int ShaderProgram::LoadShader(const std::string& source, GLenum type) {
+	unsigned int shaderID = glCreateShader(type);
+
+	const char* c_str = source.c_str();
+	int* null = 0;
+	glShaderSource(shaderID, 1, &c_str, null); // @suppress("Function cannot be resolved")
+	glCompileShader(shaderID);
+	GLint compilesuccessful;
+	glGetShaderiv(shaderID, GL_COMPILE_STATUS, &compilesuccessful);
+	if (compilesuccessful == false) {
+		GLsizei size;
+		glGetShaderiv(shaderID, GL_INFO_LOG_LENGTH, &size);
+		std::vector<char> shaderError(static_cast<std::size_t>(size));
+		glGetShaderInfoLog(shaderID, size, &size, shaderError.data());
+
+		utils::LOGE("Could not compile shader !");
+
+		utils::LOGE(shaderError.data());
+
+		utils::LOGD(utils::Format("\nShader source : \n"
+			"------------------------------------------------------------------------------------------------------------------------------------\n"
+			"%s\n"
+			"------------------------------------------------------------------------------------------------------------------------------------\n"
+		, source.c_str()));
+	}
+	return shaderID;
+}
+
+unsigned int ShaderProgram::LoadShaderFromFile(const std::string& file, GLenum type) {
+	std::stringstream stream;
+	std::ifstream fileStream(file);
+
+	if (fileStream) {
+		stream << fileStream.rdbuf();
+	} else {
+		return 0;
+	}
+
+	return LoadShader(stream.str(), type);
+}
+
+} // namespace shader
+} // namespace td

src/td/render/shader/WorldShader.cpp

@@ -0,0 +1,102 @@
+#include <td/render/shader/WorldShader.h>
+
+namespace td {
+namespace shader {
+
+// TODO: GLES Shaders
+
+#ifdef __ANDROID__
+static const char vertexSource[] =
+R"(#version 300 es
+
+precision mediump float;
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in int color;
+
+uniform mat4 viewMatrix;
+uniform mat4 projectionMatrix;
+
+flat out int pass_color;
+
+void main(void){
+   	pass_color = color;
+	gl_Position = projectionMatrix * viewMatrix * vec4(position, 1.0);
+}
+)";
+
+static const char fragmentSource[] =
+R"(#version 300 es
+
+precision mediump float;
+
+flat in int pass_color;
+
+out vec4 out_color;
+
+void main(void){
+
+    float r = float(pass_color >> 24 & 0xFF) / 255.0;
+    float g = float(pass_color >> 16 & 0xFF) / 255.0;
+    float b = float(pass_color >> 8 & 0xFF) / 255.0;
+    float a = float(pass_color & 0xFF) / 255.0; 
+	out_color = vec4(r, g, b, a);
+
+}
+)";
+#else
+static const char vertexSource[] = R"(
+#version 330
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in int color;
+
+uniform mat4 viewMatrix;
+uniform mat4 projectionMatrix;
+
+flat out int pass_color;
+
+void main(void){
+   	pass_color = color;
+	gl_Position = projectionMatrix * viewMatrix * vec4(position, 1.0);
+}
+)";
+
+static const char fragmentSource[] = R"(
+#version 330
+
+flat in int pass_color;
+
+out vec4 out_color;
+
+void main(void){
+
+    float r = float(pass_color >> 24 & 0xFF) / 255.0;
+    float g = float(pass_color >> 16 & 0xFF) / 255.0;
+    float b = float(pass_color >> 8 & 0xFF) / 255.0;
+    float a = float(pass_color & 0xFF) / 255.0; 
+	out_color = vec4(r, g, b, a);
+
+}
+)";
+#endif
+
+WorldShader::WorldShader() : ShaderProgram() {
+	ShaderProgram::LoadProgram(vertexSource, fragmentSource);
+}
+
+void WorldShader::GetAllUniformLocation() {
+	m_LocationProjection = static_cast<unsigned int>(GetUniformLocation("projectionMatrix"));
+	m_LocationView = static_cast<unsigned int>(GetUniformLocation("viewMatrix"));
+}
+
+void WorldShader::SetProjectionMatrix(const Mat4f& proj) const {
+	LoadMat4(m_LocationProjection, proj);
+}
+
+void WorldShader::SetViewMatrix(const Mat4f& view) const {
+	LoadMat4(m_LocationView, view);
+}
+
+} // namespace shader
+} // namespace td

xmake.lua

@@ -1,16 +1,22 @@
 add_rules("mode.debug", "mode.release")
 
-add_repositories("nazara-repo https://github.com/NazaraEngine/xmake-repo.git")
 add_repositories("persson-repo https://git.ale-pri.com/Persson-dev/xmake-repo.git")
 
-add_requires("fpm", "enet6", "nazarautils", "splib 2.0.0")
+add_requires("imgui 1.92.0", {configs = {sdl3 = true, opengl3 = true}})
+add_requires("splib 2.0.0", "zlib")
+add_requires("libsdl3 3.2.16", "glew", "fpm", "enet6")
+
 set_languages("c++17")
 
+set_warnings("all")
+
 target("Tower-Defense2")
     add_includedirs("include", {public = true})
-    set_kind("static")
+    set_kind("binary")
     add_files("src/**.cpp")
-    add_packages("splib", "fpm", "enet6", "nazarautils", {public = true})
+    add_packages("libsdl3", "imgui", "glew", "splib", "zlib", "fpm", "enet6", {public = true})
+    set_rundir(".")
+    add_defines("TD_GL_LOADER_GLEW")