Merge pull request 'Merge new features' (#23) from dev into main

Reviewed-on: #23

.gitea/workflows/ubuntu.yaml

@@ -0,0 +1,38 @@
+name: Linux arm64
+run-name: Build And Test
+
+on: [push]
+
+jobs:
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install deps
+        run : |
+          apt update
+          apt install -y libsdl2-dev libassimp-dev libglew-dev
+
+      - name: Check out repository code
+        uses: actions/checkout@v3
+
+      - name: Prepare XMake
+        uses: xmake-io/github-action-setup-xmake@v1
+        with:
+          xmake-version: latest
+          actions-cache-folder: '.xmake-cache'
+          actions-cache-key: 'ubuntu'
+
+      - name: Packages cache
+        uses: actions/cache@v4
+        with:
+          path: ~/.xmake
+          key: 'ubuntu-packages'
+
+      - name: XMake config
+        run: xmake f -p linux -y --root
+
+      - name: Build
+        run: xmake --root
+
+      - name: Test
+        run: xmake test --root          

.vscode/c_cpp_properties.json

@@ -1,11 +1,13 @@
 {
-    "configurations": [
-        {
-            "name": "Blitz",
-            "cppStandard": "c++17",
-            "includePath": ["include"],
-            "compileCommands": ".vscode/compile_commands.json"
-        }
-    ],
-    "version": 4
+  "configurations": [
+    {
+      "name": "Blitz",
+      "cppStandard": "c++17",
+      "includePath": [
+        "include"
+      ],
+      "compileCommands": ".vscode/compile_commands.json"
+    }
+  ],
+  "version": 4
 }

.vscode/launch.json

@@ -2,6 +2,13 @@
     // Xmake debug
     "version": "0.2.0",
     "configurations": [
+        {
+            "type": "xmake",
+            "request": "launch",
+            "name": "debug intersects test",
+            "target": "test_intersects",
+            "cwd": "",
+        },
         {
             "type": "xmake",
             "request": "launch",

include/blitz/common/DataBuffer.h

@@ -10,6 +10,7 @@
 #include <cstring>
 #include <string>
 #include <vector>
+#include <cstdint>
 
 namespace blitz {
 
@@ -180,6 +181,10 @@ class DataBuffer {
 		std::memcpy(newBuffer, data(), GetSize());
 		return newBuffer;
 	}
+
+	bool operator==(const DataBuffer& other) const{
+		return m_Buffer == other.m_Buffer;
+	}
 };
 
 std::ostream& operator<<(std::ostream& os, const DataBuffer& buffer);

include/blitz/game/Game.h

@@ -28,8 +28,8 @@ class Game {
 		return m_Players;
 	}
 
-	void AddPlayer(PlayerID player, const std::string& name);
-	void RemovePlayer(PlayerID player);
+	virtual void AddPlayer(PlayerID player, const std::string& name);
+	virtual void RemovePlayer(PlayerID player);
 };
 
 

include/blitz/game/Listeners.h

@@ -1,14 +1,14 @@
 #pragma once
 
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 
 namespace blitz {
 namespace game {
 
-class PlayerListener {
+class PlayerInputListener {
   public:
-	virtual void OnPlayerJump() {}
-	virtual void OnPlayerShoot(const Vec3f& position, float yaw, float pitch) {}
+	virtual void OnLocalPlayerJump() {}
+	virtual void OnLocalPlayerShoot(const Vec3f& position, float yaw, float pitch) {}
 };
 
 }  // namespace game

include/blitz/game/Player.h

@@ -1,13 +1,20 @@
 #pragma once
 
 #include "blitz/common/Defines.h"
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 #include <cstdint>
 #include <string>
 
 namespace blitz {
 namespace game {
 
+struct PlayerStats {
+	std::uint16_t m_Deaths;
+	std::uint16_t m_Kills;
+	std::uint32_t m_ShootCount;
+	std::uint32_t m_ShootSuccessCount;
+};
+
 class Player {
   private:
 	PlayerID m_ID;
@@ -16,9 +23,12 @@ class Player {
 	Vec3f m_Velocity;
 	float m_Yaw;
 	float m_Pitch;
+	float m_HP;
+	bool m_IsBot;
+	PlayerStats m_Stats{};
 
   public:
-	Player(PlayerID id) : m_ID(id), m_Yaw(0), m_Pitch(0) {}
+	Player(PlayerID id) : m_ID(id), m_Yaw(0), m_Pitch(0), m_IsBot(false) {}
 
 	PlayerID GetID() const {
 		return m_ID;
@@ -75,6 +85,26 @@ class Player {
 	void AddPitch(float dPitch) {
 		m_Pitch += dPitch;
 	}
+
+	float GetHP() const {
+		return m_HP;
+	}
+
+	void SetHP(float hp) {
+		m_HP = hp;
+	}
+
+	bool IsBot() const {
+		return m_IsBot;
+	}
+
+	void SetBot() {
+		m_IsBot = true;
+	}
+
+	PlayerStats& GetStats() {
+		return m_Stats;
+	}
 };
 
 

include/blitz/maths/Maths.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 #include <cmath>
 
 namespace blitz {
@@ -8,6 +8,22 @@ namespace maths {
 
 static constexpr float PI = 3.141592653f;
 
+template <typename T>
+/**
+ * @brief returns the amount of overlap between the ranges [a1 ; b1] and [a2 ; b2]
+*/
+T RangesOverlap(T& a1, T& b1, T& a2, T& b2) {
+	return std::min(std::max(a1, b1), std::max(a2, b2)) - std::max(std::min(a1, b1), std::min(a2, b2));
+}
+
+template <typename T>
+/**
+ * @brief returns whether the ranges [a1 ; b1] and [a2 ; b2] overlap
+*/
+bool RangesOverlapping(T& a1, T& b1, T& a2, T& b2) {
+	return RangesOverlap(a1, a2, b1, b2) >= 0;
+}
+
 //////////////////////////////////////////////////////////////////
 // 							Vectors								//
 //////////////////////////////////////////////////////////////////
@@ -55,6 +71,100 @@ T Distance(const Vec3<T>& vect, const Vec3<T>& other) {
 	return Length(vect - other);
 }
 
+// it seems that `std::{min, max}`'s behavior conflicts with that of `cmath`'s `f{min, max}[f]`
+// Why? Like I fucking know dude
+
+
+template <typename T>
+T ReduceMin(const Vec3<T>& vect) {
+	return std::min(std::min(vect.x, vect.y), vect.z);
+}
+
+template <typename T>
+T ReduceMax(const Vec3<T>& vect) {
+	return std::max(std::max(vect.x, vect.y), vect.z);
+}
+
+/**
+ * @brief returns the (signed) minimal coordinate of the vector
+ *
+ * @param v
+ * @return constexpr T
+ */
+template <>
+inline float ReduceMin<float>(const Vec3f& v) {
+	return std::fminf(std::fminf(v.x, v.y), v.z);
+}
+
+/**
+ * @brief returns the (signed) maximal coordinate of the vector
+ *
+ * @param v
+ * @return constexpr T
+ */
+template <>
+inline float ReduceMax<float>(const Vec3f& v) {
+	return std::fmaxf(std::fmaxf(v.x, v.y), v.z);
+}
+
+/**
+ * @brief returns the (signed) minimal coordinate of the vector
+ *
+ * @param v
+ * @return constexpr T
+ */
+template <>
+inline double ReduceMin<double>(const Vec3d& v) {
+	return std::fmin(std::fmin(v.x, v.y), v.z);
+}
+
+/**
+ * @brief returns the (signed) maximal coordinate of the vector
+ *
+ * @param v
+ * @return constexpr T
+ */
+template <>
+inline double ReduceMax<double>(const Vec3d& v) {
+	return std::fmax(std::fmax(v.x, v.y), v.z);
+}
+
+/**
+ * @brief returns the coordinate-wise minimum of the given vectors,
+ * where a coordinate in the returned vector is NAN iff any of the two compared ones are NAN
+ *
+ * @tparam T
+ * @param self
+ * @param other
+ * @return constexpr Vec3f
+ */
+template <typename T>
+constexpr Vec3<T> Min(const Vec3<T>& self, const Vec3<T>& other) {
+	return {
+		std::min(self.x, other.x),
+		std::min(self.y, other.y),
+		std::min(self.z, other.z),
+	};
+}
+
+/**
+ * @brief returns the coordinate-wise maximum of the given vectors,
+ * where a coordinate in the returned vector is NAN iff any of the two compared ones are NAN
+ *
+ * @tparam T
+ * @param self
+ * @param other
+ * @return constexpr Vec3f
+ */
+template <typename T>
+constexpr Vec3<T> Max(const Vec3<T>& self, const Vec3<T>& other) {
+	return {
+		std::max(self.x, other.x),
+		std::max(self.y, other.y),
+		std::max(self.z, other.z),
+	};
+}
+
 //////////////////////////////////////////////////////////////////
 // 						    Matricies							//
 //////////////////////////////////////////////////////////////////
@@ -125,6 +235,8 @@ Mat4f Inverse(const Mat4f& mat);
 
 Mat4f Translate(const Vec3f& translation);
 
+Mat4f Scale(const Vec3f& axisFactor);
+
 Mat4f RotateX(float angle);
 Mat4f RotateY(float angle);
 Mat4f RotateZ(float angle);

include/blitz/maths/Physics.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "blitz/maths/Vector.h"
+
+namespace blitz {
+namespace maths {
+
+struct Ray {
+	Vec3f origin;
+	Vec3f direction;
+};
+
+struct AABB {
+	Vec3f from;
+	Vec3f to;
+};
+
+inline AABB operator+(const AABB& aabb, const Vec3f& offset) {
+	AABB result = aabb;
+	result.from += offset;
+	result.to += offset;
+	return result;
+}
+
+float Distance(const Ray& ray, const AABB& aabb);
+
+bool Intersects(const Ray& ray, const AABB& aabb);
+
+}  // namespace maths
+}  // namespace blitz

include/blitz/maths/Vector.h

@@ -1,5 +1,7 @@
 #pragma once
 
+#include <algorithm>
+#include <cmath>
 #include <cstddef>
 
 namespace blitz {
@@ -23,10 +25,6 @@ struct Vec2 {
 	constexpr Vec2(T X = 0, T Y = 0) : x(X), y(Y) {}
 };
 
-
-
-
-
 template <typename T>
 struct Vec3 {
 	union {
@@ -47,10 +45,6 @@ struct Vec3 {
 	constexpr Vec3(T X = 0, T Y = 0, T Z = 0) : x(X), y(Y), z(Z) {}
 };
 
-
-
-
-
 template <typename T>
 struct Vec4 {
 	union {
@@ -77,10 +71,6 @@ struct Vec4 {
 	constexpr Vec4(T X = 0, T Y = 0, T Z = 0, T W = 0) : x(X), y(Y), z(Z), w(W) {}
 };
 
-
-
-
-
 using Vec2uc = Vec2<unsigned char>;
 using Vec2i = Vec2<int>;
 using Vec2u = Vec2<unsigned int>;
@@ -178,7 +168,7 @@ Vec3<T>& operator+=(Vec3<T>& vect, const Vec3<T>& other) {
 
 template <typename T>
 constexpr Vec3<T> operator-(const Vec3<T>& vect, const Vec3<T>& other) {
-	return vect + (-other);
+	return {vect.x - other.x, vect.y - other.y, vect.z - other.z};
 }
 
 template <typename T>
@@ -197,9 +187,44 @@ constexpr Vec3<T> operator*(T mult, const Vec3<T>& vect) {
 	return vect * mult;
 }
 
+template <typename T>
+constexpr Vec3<T> operator*=(const Vec3<T>& vect, T mult) {
+	vect = vect * mult;
+	return vect;
+}
 
+template <typename T>
+constexpr Vec3<T> operator*=(T mult, const Vec3<T>& vect) {
+	vect = vect * mult;
+	return vect;
+}
 
+template <typename T>
+constexpr Vec3<T> operator*(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>& operator*=(Vec3<T>& vect, const Vec3<T>& other) {
+	vect = vect * other;
+	return vect;
+}
+
+template <typename T>
+constexpr Vec3<T> operator/(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>& operator/=(Vec3<T>& vect, const Vec3<T>& other) {
+	vect = vect / other;
+	return vect;
+}
+
+template <typename T>
+constexpr bool operator<(const Vec3<T>& vec3, const Vec3<T>& other) {
+	return vec3.x < other.x && vec3.y < other.y && vec3.z < other.z;
+}
 
 // Vec4
 
@@ -245,10 +270,6 @@ constexpr Vec4<T> operator*(T mult, const Vec4<T>& vect) {
 	return vect * mult;
 }
 
-
-
-
-
 //////////////////////////////////////////////////////////////////
 // 							Matrix								//
 //////////////////////////////////////////////////////////////////
@@ -279,26 +300,18 @@ struct Mat4 {
 	}
 
 	T at(std::size_t row, std::size_t column) const {
-		return operator[](row* MATRIX_SIZE + column);
+		return operator[](row * MATRIX_SIZE + column);
 	}
 
 	T& at(std::size_t row, std::size_t column) {
-		return operator[](row* MATRIX_SIZE + column);
+		return operator[](row * MATRIX_SIZE + column);
 	}
 };
 
-
-
-
-
 typedef Mat4<float> Mat4f;
 typedef Mat4<int> Mat4i;
 typedef Mat4<double> Mat4d;
 
-
-
-
-
 template <typename T>
 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 &&
@@ -306,5 +319,4 @@ bool operator==(const Mat4<T>& mat, const Mat4<T>& other) {
 		   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 blitz

include/blitz/misc/PrettyLog.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 #include <string>
 
 namespace blitz {

include/blitz/protocol/PacketHandler.h

@@ -31,6 +31,7 @@ class PacketHandler {
 	virtual void HandlePacket(const PlayerPositionAndRotationPacket* packet) {}
 	virtual void HandlePacket(const PlayerShootPacket* packet) {}
 	virtual void HandlePacket(const ServerTpsPacket* packet) {}
+	virtual void HandlePacket(const UpdateHealthPacket* packet) {}
 };
 
 }  // namespace protocol

include/blitz/protocol/Packets.h

@@ -8,4 +8,5 @@
 #include "packets/PlayerLoginPacket.h"
 #include "packets/PlayerPositionAndRotationPacket.h"
 #include "packets/PlayerShootPacket.h"
-#include "packets/ServerTpsPacket.h"
+#include "packets/ServerTpsPacket.h"
+#include "packets/UpdateHealthPacket.h"

include/blitz/protocol/PacketsForward.h

@@ -14,6 +14,7 @@ class PlayerLoginPacket;
 class PlayerPositionAndRotationPacket;
 class PlayerShootPacket;
 class ServerTpsPacket;
+class UpdateHealthPacket;
 
 }  // namespace protocol
 }  // namespace blitz

include/blitz/protocol/Protocol.h

@@ -20,6 +20,7 @@ enum class PacketType : std::uint8_t {
 	// client --> server
 
 	PlayerLogin = 0, /**< Corresponds to PlayerLoginPacket */
+	UpdateHealth,	 /**< Corresponds to UpdateHealthPacket */
 
 	// client <-- server
 

include/blitz/protocol/packets/ChatPacket.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 #include "blitz/protocol/Protocol.h"
 #include <vector>
 

include/blitz/protocol/packets/PlayerPositionAndRotationPacket.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include "blitz/common/Defines.h"
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 #include "blitz/protocol/Protocol.h"
 
 namespace blitz {

include/blitz/protocol/packets/PlayerShootPacket.h

@@ -15,13 +15,29 @@ class PlayerShootPacket : public Packet {
   public:
 	PlayerShootPacket() {}
 	PlayerShootPacket(Vec3f position, float yaw, float pitch, game::PlayerID player = 0) :
-		m_Position(position), m_Yaw(yaw), m_Pitch(pitch), m_Player(player) {}
+		m_Player(player), m_Position(position), m_Yaw(yaw), m_Pitch(pitch) {}
 	virtual ~PlayerShootPacket() {}
 
 	virtual DataBuffer Serialize(bool packetID = true) const;
 	virtual void Deserialize(DataBuffer& data);
 	virtual void Dispatch(PacketHandler* handler) const;
 
+	const Vec3f& GetPosition() const {
+		return m_Position;
+	}
+
+	float GetYaw() const {
+		return m_Yaw;
+	}
+
+	float GetPitch() const {
+		return m_Pitch;
+	}
+
+	game::PlayerID GetPlayer() const {
+		return m_Player;
+	}
+
 	virtual PacketType GetType() const {
 		return PacketType::PlayerShoot;
 	}

include/blitz/protocol/packets/UpdateHealthPacket.h

@@ -0,0 +1,31 @@
+#pragma once
+
+#include "blitz/protocol/Protocol.h"
+
+namespace blitz {
+namespace protocol {
+
+class UpdateHealthPacket : public Packet {
+  private:
+	float m_NewHealth;
+
+  public:
+	UpdateHealthPacket() {}
+	UpdateHealthPacket(float newHealth) : m_NewHealth(newHealth) {}
+	virtual ~UpdateHealthPacket() {}
+
+	virtual DataBuffer Serialize(bool packetID = true) const;
+	virtual void Deserialize(DataBuffer& data);
+	virtual void Dispatch(PacketHandler* handler) const;
+
+	std::uint8_t GetNewHealth() const {
+		return m_NewHealth;
+	}
+
+	virtual PacketType GetType() const {
+		return PacketType::UpdateHealth;
+	}
+};
+
+}  // namespace protocol
+}  // namespace blitz

include/client/Client.h

@@ -26,11 +26,12 @@ class Server;
 class GuiListener {
   public:
 	virtual void OnTextChatReceived(const protocol::ColoredText& text) {}
-	virtual void OnSpectatorChange(const game::PlayerID player) {}
+	virtual void OnSpectatorChange(game::PlayerID player) {}
+	virtual void OnPlayerShoot(game::PlayerID player, const Vec3f& position, float yaw, float pitch) {}
 };
 
 // Singleton
-class Client : public utils::ObjectNotifier<GuiListener>, public game::PlayerListener {
+class Client : public utils::ObjectNotifier<GuiListener>, public game::PlayerInputListener {
   private:
 	std::unique_ptr<server::Server> m_Server;
 	std::unique_ptr<client::ClientConnexion> m_Connexion;
@@ -56,7 +57,7 @@ class Client : public utils::ObjectNotifier<GuiListener>, public game::PlayerLis
 
 	void SendPlayerPosAndLook(const Vec3f& position, float yaw, float pitch);
 
-	virtual void OnPlayerShoot(const Vec3f& position, float yaw, float pitch) override;
+	virtual void OnLocalPlayerShoot(const Vec3f& position, float yaw, float pitch) override;
 
 	game::PlayerID GetPlayerID() const;
 
@@ -68,6 +69,12 @@ class Client : public utils::ObjectNotifier<GuiListener>, public game::PlayerLis
 		return &m_Config;
 	}
 
+	bool IsAdmin() const;
+
+	server::Server* GetServer() {
+		return m_Server.get();
+	}
+
   private:
 	void Reset();
 

include/client/config/BlitzConfig.h

@@ -5,11 +5,24 @@
 
 namespace blitz {
 
+enum KeyAction {
+	kaAvancer = 0,
+	kaReculer,
+	kaDroite,
+	kaGauche,
+	kaMax,
+};
+
+typedef std::array<int, kaMax> Keybinds;
+
 class BlitzConfig {
   private:
 	std::array<char, 256> m_Pseudo;
 	bool m_VSync;
 	bool m_DisplayFps;
+	KeyAction m_CurrentAction;
+	Keybinds m_Keybinds{};
+
 
   public:
 	BlitzConfig();
@@ -35,6 +48,10 @@ class BlitzConfig {
 		m_DisplayFps = display;
 	}
 
+	Keybinds& GetKeys() {
+		return m_Keybinds;
+	}
+
   private:
 	void LoadConfig();
 	void LoadDefaultConfig();

include/client/display/PlayerController.h

@@ -6,6 +6,9 @@
 #include "blitz/misc/Time.h"
 
 namespace blitz {
+
+class Client;
+
 namespace game {
 
 class Player;
@@ -14,22 +17,23 @@ class Player;
 
 namespace input {
 
-class PlayerController : public utils::ObjectNotifier<game::PlayerListener> {
+class PlayerController : public utils::ObjectNotifier<game::PlayerInputListener> {
   private:
 	game::Player* m_Player;
+	Client* m_Client;
 	utils::CooldownTimer<float> m_ShootTimer{1.0f};
 	EMASmoother m_DxSmoother;
-	/// maximum x-axis velocity
-	float m_MaxDx;
+	EMASmoother m_DySmoother;
 	/// current (target) x-axis velocity
 	float m_Dx;
-	EMASmoother m_DySmoother;
-	/// maximum (target) y-axis velocity
-	float m_MaxDy;
 	/// current (target) y-axis velocity
 	float m_Dy;
 	/// current z-axis velocity
 	float m_Dz;
+	/// maximum x-axis velocity
+	float m_MaxDx;
+	/// maximum (target) y-axis velocity
+	float m_MaxDy;
 	/// maximum z-axis velocity (velocity at initial keypress)
 	float m_MaxDz;
 	/// individual gravitational force
@@ -38,7 +42,7 @@ class PlayerController : public utils::ObjectNotifier<game::PlayerListener> {
 	bool m_OnGround;
 
   public:
-	PlayerController();
+	PlayerController(Client* client);
 
 	void Update(float delta);
 

include/client/game/ClientGame.h

@@ -23,6 +23,8 @@ class ClientGame : public game::Game, public protocol::PacketHandler {
 	virtual void HandlePacket(const protocol::PlayerLeavePacket* packet) override;
 	virtual void HandlePacket(const protocol::PlayerListPacket* packet) override;
 	virtual void HandlePacket(const protocol::PlayerPositionAndRotationPacket* packet) override;
+	virtual void HandlePacket(const protocol::PlayerShootPacket* packet) override;
+	virtual void HandlePacket(const protocol::UpdateHealthPacket* packet) override;
 
   private:
 	void RegisterHandlers();

include/client/gui/Crosshair.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "GuiWidget.h"
+
+namespace blitz {
+namespace gui {
+
+class CrossHair : public GuiWidget {
+  private:
+	int m_CrossHairTexture;
+
+  public:
+	CrossHair(Client* client);
+
+	virtual void Render() override;
+};
+
+}  // namespace gui
+}  // namespace blitz

include/client/gui/GameChatGui.h

@@ -15,6 +15,9 @@ class GameChatGui : public GuiWidget, GuiListener {
 	std::vector<protocol::ColoredText> m_Lines;
 	std::vector<protocol::ColoredText> m_TempLines;
 	bool m_FocusRequested = false;
+	int HistoryPos;	 // -1: new line, 0..History.Size-1 browsing history.
+	bool ScrollToBottom = false;
+	bool AutoScroll = true;
 	float m_ChatDisplay = 0;
 
 

include/client/gui/Hud.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "GuiWidget.h"
+#include "client/Client.h"
+
+namespace blitz {
+
+class Client;
+
+namespace gui {
+class Hud : public GuiWidget {
+  private:
+	/* data */
+
+	void Draw(const char* title, bool* p_open);
+	unsigned int m_GunTexture;
+	unsigned int m_JP;
+
+  public:
+	Hud(GuiWidget* parent, Client* client);
+	virtual void Render() override;
+};
+
+}  // namespace gui
+}  // namespace blitz

include/client/gui/OptionsMenu.h

@@ -1,6 +1,10 @@
 #pragma once
 
 #include "GuiWidget.h"
+#include "blitz/misc/Time.h"
+#include "client/config/BlitzConfig.h"
+#include <array>
+#include <string>
 
 namespace blitz {
 
@@ -12,6 +16,10 @@ class OptionsMenu : public GuiWidget {
   private:
 	bool m_ShowFPS;
 	bool m_VSync;
+	bool m_IsKeyPopupOpen;
+	bool m_KeyPopupShouldClose;
+	utils::Timer m_Timer{100};
+	KeyAction m_CurrentAction;
 
   public:
 	OptionsMenu(GuiWidget* parent, Client* client);
@@ -19,6 +27,11 @@ class OptionsMenu : public GuiWidget {
 	virtual void Render() override;
 
 	void OnKeyEvent(int key);
+
+  private:
+	std::string GetKeyActionCodeName(KeyAction);
+	void HotkeyBindingButton();
+	void HotkeyBindingPopUp();
 };
 
 }  // namespace gui

include/client/gui/ServerGui.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include "GuiWidget.h"
+
+namespace blitz {
+namespace gui {
+
+class ServerGui : public GuiWidget {
+  public:
+	ServerGui(GuiWidget* parent, Client* client);
+
+	virtual void Render() override;
+};
+
+}  // namespace gui
+}  // namespace blitz

include/client/render/BulletRenderer.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include "blitz/maths/Vector.h"
+#include "client/render/loader/ModelLoader.h"
+#include <memory>
+#include <vector>
+
+
+namespace blitz {
+
+namespace shader {
+class BulletShader;
+}  // namespace shader
+
+
+namespace render {
+
+class Camera;
+
+struct Trail {
+	Mat4f m_Transform;
+	float m_Decay;
+};
+
+
+class BulletRenderer {
+  private:
+	std::vector<Trail> m_Trails;
+	ModelLoader::Model m_BulletModel;
+	std::unique_ptr<shader::BulletShader> m_Shader;
+	unsigned int m_Vbo;
+	const Camera& m_Camera;
+
+  public:
+	BulletRenderer(const Camera& cam);
+	~BulletRenderer();
+
+	void AddBullet(const Vec3f& origin, float yaw, float pitch);
+	void Update(float delta);
+	void Render();
+};
+
+}  // namespace render
+}  // namespace blitz

include/client/render/Camera.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "blitz/common/Vector.h"
 #include "blitz/game/Player.h"
+#include "blitz/maths/Vector.h"
 #include <cstdint>
 
 namespace blitz {
@@ -19,6 +19,8 @@ class Camera {
 
 	void Update(float delta);
 
+	static float GetPlayerEyeHeight();
+
 	void SetAttachedPlayer(game::Player* a_Player) {
 		m_Player = a_Player;
 	}

include/client/render/MainRenderer.h

@@ -2,6 +2,7 @@
 
 #include "client/Client.h"
 #include "client/display/PlayerController.h"
+#include "client/render/BulletRenderer.h"
 #include "client/render/Camera.h"
 #include "client/render/loader/GLLoader.h"
 #include "client/render/loader/ModelLoader.h"
@@ -19,7 +20,7 @@ class GunShader;
 
 namespace render {
 
-class MainRenderer : public GuiListener, public game::PlayerListener {
+class MainRenderer : public GuiListener, public game::PlayerInputListener {
   private:
 	Client* m_Client;
 	ModelLoader::Model m_PlayerModel;
@@ -32,14 +33,15 @@ class MainRenderer : public GuiListener, public game::PlayerListener {
 	unsigned int m_Texture;
 	float m_ShootTime;
 	Camera m_Camera;
+	BulletRenderer m_BulletRenderer;
 
   public:
 	MainRenderer(Client* client);
 	~MainRenderer();
 
-	virtual void OnSpectatorChange(const game::PlayerID player) override;
-
-	virtual void OnPlayerShoot(const Vec3f& position, float yaw, float pitch) override;
+	virtual void OnSpectatorChange(game::PlayerID player) override;
+	virtual void OnPlayerShoot(game::PlayerID player, const Vec3f& position, float yaw, float pitch) override;
+	virtual void OnLocalPlayerShoot(const Vec3f& position, float yaw, float pitch) override;
 
 	void Update();
 	void Render();

include/client/render/OpenGL.h

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

include/client/render/shader/BulletShader.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "ShaderProgram.h"
+
+namespace blitz {
+namespace shader {
+
+class BulletShader : public ShaderProgram {
+  private:
+	unsigned int m_LocationProjectionMatrix = 0;
+	unsigned int m_LocationViewMatrix = 0;
+	unsigned int m_LocationAlpha = 0;
+	unsigned int m_LocationTransform = 0;
+
+  protected:
+	virtual void GetAllUniformLocation() override;
+
+  public:
+	BulletShader();
+
+	bool LoadShader();
+
+	void SetProjectionMatrix(const Mat4f& proj) const;
+	void SetViewMatrix(const Mat4f& view) const;
+	void SetTransform(const Mat4f& trans) const;
+	void SetDecay(float decay) const;
+};
+
+}  // namespace shader
+}  // namespace blitz

include/client/render/shader/ShaderProgram.h

@@ -1,8 +1,7 @@
 #pragma once
 
-#include "blitz/common/Vector.h"
-#include <glbinding/SharedBitfield.h>
-#include <glbinding/gl/enum.h>
+#include "blitz/maths/Vector.h"
+#include "client/render/OpenGL.h"
 #include <string>
 
 namespace blitz {
@@ -37,7 +36,7 @@ class ShaderProgram {
 	unsigned int m_VertexShaderID;
 	unsigned int m_FragmentShaderID;
 
-	int LoadShader(const std::string& source, gl::GLenum type);
+	int LoadShader(const std::string& source, GLenum type);
 };
 
 }  // namespace shader

include/server/Server.h

@@ -36,6 +36,8 @@ class Server {
 
 	void Restart();
 
+	void AddBot();
+
 	void RemoveConnexion(std::uint8_t connexionID);
 
 	void BroadcastPacket(const protocol::Packet* packet);
@@ -67,6 +69,8 @@ class Server {
 
 	std::uint16_t GetListeningPort();
 
+	game::PlayerID GetNewPlayerID();
+
   private:
 	void Accept();
 	void UpdateSockets();

include/server/game/ServerGame.h

@@ -17,10 +17,17 @@ class ServerGame : public game::Game {
 	ServerGame(Server* server);
 	virtual ~ServerGame();
 
+	void CheckShoot(game::PlayerID player, Vec3f position, float yaw, float pitch);
+
+	void AddPlayer(game::PlayerID player, const std::string& name) override;
+	void RemovePlayer(game::PlayerID player) override;
+
 	void Tick(std::uint64_t delta) override;
 
   private:
 	void SendPlayerPositions();
+	void DamagePlayer(game::Player& player, game::Player& shooter);
+	void UpdateHP(game::Player& player, float newHP);
 };
 
 }  // namespace server

src/blitz/common/VarInt.cpp

@@ -30,7 +30,7 @@ DataBuffer& operator<<(DataBuffer& out, const VarInt& var) {
 
 DataBuffer& operator>>(DataBuffer& in, VarInt& var) {
 	var.m_Value = 0;
-	int position = 0;
+	unsigned int position = 0;
 	std::uint8_t currentByte;
 
 	while (true) {

src/blitz/game/Game.cpp

@@ -22,8 +22,11 @@ const Player* Game::GetPlayerById(PlayerID id) const {
 }
 
 void Game::AddPlayer(PlayerID player, const std::string& name) {
+	static float MAX_HP = 100;
+
 	game::Player newPlayer{player};
 	newPlayer.SetName(name);
+	newPlayer.SetHP(MAX_HP);
 
 	GetPlayers().insert({player, newPlayer});
 }

src/blitz/maths/Maths.cpp

@@ -1,4 +1,4 @@
-#include "blitz/misc/Maths.h"
+#include "blitz/maths/Maths.h"
 
 #include <cassert>
 
@@ -89,12 +89,24 @@ Mat4f Inverse(const Mat4f& mat) {
 Mat4f Translate(const Vec3f& translation) {
 	Mat4f mat = Identity<float>();
 
-	Vec4f vh {translation.x, translation.y, translation.z, 1.0};
+	Vec4f vh{translation.x, translation.y, translation.z, 1.0};
 
-	mat.at(3, 0) = Dot(Vec4f{mat.at(0, 0), mat.at(1, 0), mat.at(2, 0), mat.at(3, 0)}, vh);
-	mat.at(3, 1) = Dot(Vec4f{mat.at(0, 1), mat.at(1, 1), mat.at(2, 1), mat.at(3, 1)}, vh);
-	mat.at(3, 2) = Dot(Vec4f{mat.at(0, 2), mat.at(1, 2), mat.at(2, 2), mat.at(3, 2)}, vh);
-	mat.at(3, 3) = Dot(Vec4f{mat.at(0, 3), mat.at(1, 3), mat.at(2, 3), mat.at(3, 3)}, vh);
+	mat.at(3, 0) = vh.x;
+	mat.at(3, 1) = vh.y;
+	mat.at(3, 2) = vh.z;
+	mat.at(3, 3) = vh.w;
+
+	return mat;
+}
+
+
+Mat4f Scale(const Vec3f& axisFactor) {
+	Mat4f mat{};
+
+	mat.at(0, 0) = axisFactor.x;
+	mat.at(1, 1) = axisFactor.y;
+	mat.at(2, 2) = axisFactor.z;
+	mat.at(3, 3) = 1.0f;
 
 	return mat;
 }

src/blitz/maths/Physics.cpp

@@ -0,0 +1,68 @@
+#include "blitz/maths/Physics.h"
+#include "blitz/maths/Maths.h"
+
+#include <cmath>
+
+namespace blitz {
+namespace maths {
+
+/**
+* @brief Returns `true` if the half-line `ray` _strictly_ intersects with `aabb`,
+*  and `false` if it _strictly_ doesn't intersect.
+*  Note that if it only intersects with corners, edges, or sides of the box, 
+*  or if any coordinate in `ray` is `NAN` or `inf` or if any coordinate in
+*  `aabb` is `NAN` the result is unspecified.
+ * */
+float Distance(const Ray& ray, const AABB& aabb) {
+
+	// This function calculates smallest interval I = ] a, b [, for strictly positive a and b
+	// such that for all t in I, for all l, r, o, d corresponding
+	// coordinates in aabb.from, aabb.to, ray.origin, ray.direction, respectively
+	//
+	//	min(l, r) < o + t * d < max(l, r)
+	// 
+	// and returns true if it's non-empty i.e. a < b 
+
+	// m = min(l, r), M = max(l, r)
+	// m < o + t * d < M
+	Vec3f l = Min(aabb.from, aabb.to);
+	Vec3f r = Max(aabb.to, aabb.from);
+
+	// m - o < t * d < M - o
+	l -= ray.origin;
+	r -= ray.origin;
+
+	// (m - o) / d < t < (M - o) / d
+	l /= ray.direction;
+	r /= ray.direction;
+
+	// but if d is negative the inequality is flipped
+	Vec3f u = Min(l, r);
+	r = Max(l, r);
+	l = u;
+
+	float tmin = ReduceMax(l);
+	float tmax = ReduceMin(r);
+
+	// Since Min propagates NANs and ReduceMin doesn't, and since NAN !< <any float>
+	// the inequality becomes ignored for coordinates where a NAN is involved
+	// (as a result of 0.0 / 0.0). If all coordinates are NAN, this means
+	// that the box is reduced to a point and the ray has direction 0,
+	// in which case this returns -1
+	if (tmax >= 0.0f && tmin <= tmax) {
+		return std::fmaxf(tmin, 0.0f);
+	}
+
+	return -1.0f;
+}
+
+bool Intersects(const AABB& aabb1, const AABB& aabb2) {
+	return false;
+}
+
+bool Intersects(const Ray& ray, const AABB& aabb) {
+	return Distance(ray, aabb) >= 0.0f;
+}
+
+}  // namespace maths
+}  // namespace blitz

src/blitz/misc/Easing.cpp

@@ -1,6 +1,6 @@
 #include "blitz/misc/Easing.h"
 
-#include "blitz/misc/Maths.h"
+#include "blitz/maths/Maths.h"
 
 namespace blitz {
 namespace utils {

src/blitz/network/TCPSocket.cpp

@@ -16,7 +16,7 @@ namespace blitz {
 namespace network {
 
 TCPSocket::TCPSocket() :
-	m_Blocking(false), m_Status(Status::Disconnected), m_Port(0), m_Handle(static_cast<SocketHandle>(INVALID_SOCKET)) {}
+	m_Blocking(false), m_Status(Status::Disconnected), m_Handle(static_cast<SocketHandle>(INVALID_SOCKET)), m_Port(0) {}
 
 
 TCPSocket::TCPSocket(TCPSocket&& other) {

src/blitz/protocol/PacketFactory.cpp

@@ -14,6 +14,7 @@ typedef std::unique_ptr<Packet> PacketPtr;
 
 static std::array<PacketPtr, static_cast<std::size_t>(PacketType::PACKET_COUNT)> Packets = {
 	std::make_unique<PlayerLoginPacket>(),
+	std::make_unique<UpdateHealthPacket>(),
 	std::make_unique<ConnexionInfoPacket>(),
 	std::make_unique<PlayerJoinPacket>(),
 	std::make_unique<PlayerLeavePacket>(),

src/blitz/protocol/Protocol.cpp

@@ -25,6 +25,7 @@ REGISTER_DISPATCH_CLASS(ServerTpsPacket)
 REGISTER_DISPATCH_CLASS(ChatPacket)
 REGISTER_DISPATCH_CLASS(PlayerPositionAndRotationPacket)
 REGISTER_DISPATCH_CLASS(PlayerShootPacket);
+REGISTER_DISPATCH_CLASS(UpdateHealthPacket);
 
 }  // namespace protocol
 }  // namespace blitz

src/blitz/protocol/packets/ChatPacket.cpp

@@ -1,6 +1,6 @@
 #include "blitz/protocol/packets/ChatPacket.h"
 
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 #include "blitz/misc/Log.h"
 #include <map>
 #include <sstream>

src/blitz/protocol/packets/PlayerListPacket.cpp

@@ -20,7 +20,7 @@ void PlayerListPacket::Deserialize(DataBuffer& data) {
 	VarInt playerCount;
 	data >> playerCount;
 
-	for (int i = 0; i < playerCount.GetValue(); i++) {
+	for (std::size_t i = 0; i < playerCount.GetValue(); i++) {
 		std::uint8_t playerID;
 		PlayerInfo playerInfo;
 		data >> playerID >> playerInfo.name;

src/blitz/protocol/packets/UpdateHealthPacket.cpp

@@ -0,0 +1,19 @@
+#include "blitz/protocol/packets/UpdateHealthPacket.h"
+
+namespace blitz {
+namespace protocol {
+
+DataBuffer UpdateHealthPacket::Serialize(bool packetID) const {
+	DataBuffer data;
+
+	WritePacketID(data, packetID);
+	data << m_NewHealth;
+	return data;
+}
+
+void UpdateHealthPacket::Deserialize(DataBuffer& data) {
+	data >> m_NewHealth;
+}
+
+}  // namespace protocol
+}  // namespace blitz

src/client/Client.cpp

@@ -80,7 +80,7 @@ void Client::SendPlayerPosAndLook(const Vec3f& position, float yaw, float pitch)
 }
 
 
-void Client::OnPlayerShoot(const Vec3f& position, float yaw, float pitch) {
+void Client::OnLocalPlayerShoot(const Vec3f& position, float yaw, float pitch) {
 	protocol::PlayerShootPacket packet(position, yaw, pitch);
 	m_Connexion->SendPacket(&packet);
 }
@@ -94,6 +94,10 @@ bool Client::IsConnected() {
 	return m_Connexion->GetSocketStatus() == network::TCPSocket::Status::Connected;
 }
 
+bool Client::IsAdmin() const {
+	return m_Server->IsRunning();
+}
+
 void Client::UpdatePosition(std::uint64_t delta) {
 	// send position every tick (50 ms)
 

src/client/config/BlitzConfig.cpp

@@ -1,6 +1,7 @@
 #include "client/config/BlitzConfig.h"
 
 #include "blitz/misc/Log.h"
+#include "imgui.h"
 #include <fstream>
 #include <nlohmann/json.hpp>
 
@@ -36,6 +37,7 @@ void BlitzConfig::LoadConfig() {
 		std::memcpy(m_Pseudo.data(), pseudo.data(), pseudo.size() + 1);
 		jsonInput.at("vsync").get_to<bool>(m_VSync);
 		jsonInput.at("fps").get_to<bool>(m_DisplayFps);
+		jsonInput.at("keys").get_to<Keybinds>(m_Keybinds);
 
 		utils::LOG("[BlitzConfig] Restored config !");
 	} catch (std::exception& e) {
@@ -48,6 +50,7 @@ void BlitzConfig::LoadDefaultConfig() {
 	m_VSync = true;
 	const char defaultPseudo[] = "Pseudo";
 	std::memcpy(m_Pseudo.data(), defaultPseudo, sizeof(defaultPseudo));
+	m_Keybinds = {ImGuiKey_Z, ImGuiKey_S, ImGuiKey_D, ImGuiKey_Q};
 }
 
 void BlitzConfig::SaveConfig() {
@@ -61,6 +64,7 @@ void BlitzConfig::SaveConfig() {
 		{"pseudo", GetPseudo().data()},
 		{"vsync", IsVSyncEnabled()},
 		{"fps", IsFPSDisplayEnabled()},
+		{"keys", GetKeys()},
 	};
 
 	file << jsonOutput;

src/client/display/Display.cpp

@@ -1,11 +1,10 @@
 #include "client/display/Display.h"
 
 #include "client/display/InputManager.h"
+#include "client/render/OpenGL.h"
 #include <SDL2/SDL.h>
 #include <backends/imgui_impl_opengl3.h>
 #include <backends/imgui_impl_sdl2.h>
-#include <glbinding/gl/gl.h>
-#include <glbinding/glbinding.h>
 
 #include "blitz/misc/Format.h"
 #include "blitz/misc/Log.h"
@@ -13,17 +12,21 @@
 
 #include "client/gui/BlitzGui.h"
 
-using namespace gl;
+#ifndef BLITZ_GL_LOADER_GLBNIDING
+#include <GL/glew.h>
+#else
+#include <glbinding/glbinding.h>
+#endif
 
 namespace blitz {
 
 Display::Display(int width, int height, const std::string& windowName, Client* client) :
 	m_WindowWidth(width),
 	m_WindowHeight(height),
+	m_AspectRatio(m_WindowHeight / static_cast<float>(m_WindowWidth)),
 	m_WindowName(windowName),
 	m_ShouldClose(false),
 	m_FullScreen(false),
-	m_AspectRatio(m_WindowHeight / static_cast<float>(m_WindowWidth)),
 	m_Client(client),
 	m_BlitzGui(nullptr) {}
 
@@ -94,7 +97,15 @@ bool Display::Create() {
 	SDL_GL_MakeCurrent(m_Window, m_GL_Context);
 	SDL_GL_SetSwapInterval(1);
 
+#ifndef BLITZ_GL_LOADER_GLBNIDING
+	GLenum error = glewInit();
+	if (error != GLEW_OK) {
+		utils::LOGE(utils::Format("[Display] Failed to initialise glew : %s", glewGetErrorString(error)));
+		return false;
+	}
+#else
 	glbinding::initialize(reinterpret_cast<glbinding::ProcAddress (*)(const char*)>(SDL_GL_GetProcAddress));
+#endif
 
 	InitImGui();
 	return true;

src/client/display/PlayerController.cpp

@@ -1,8 +1,9 @@
 #include "client/display/PlayerController.h"
 
 #include "blitz/game/Player.h"
+#include "blitz/maths/Maths.h"
 #include "blitz/misc/Log.h"
-#include "blitz/misc/Maths.h"
+#include "client/Client.h"
 #include "client/display/InputManager.h"
 #include "imgui.h"
 #include <algorithm>
@@ -18,14 +19,15 @@ static constexpr float DEFAULT_MAX_FB_SPEED = 10.;
 static constexpr float DEFAULT_LR_SPEED_SMOOTHING_TIME = 1.0;
 static constexpr float DEFAULT_FB_SPEED_SMOOTHING_TIME = 1.0;
 
-PlayerController::PlayerController() :
+PlayerController::PlayerController(Client* client) :
 	m_Player(nullptr),
+	m_Client(client),
 	m_Dx(0.0),
 	m_Dy(0.0),
+	m_Dz(0.0),
 	m_MaxDx(DEFAULT_MAX_LR_SPEED),
 	m_MaxDy(DEFAULT_MAX_FB_SPEED),
 	m_MaxDz(DEFAULT_JUMP_VEL),
-	m_Dz(0.0),
 	m_G(DEFAULT_GRAVITY),
 	m_OnGround(true) {
 	m_DxSmoother.Current = 0.0f;
@@ -52,8 +54,11 @@ void PlayerController::Update(float delta) {
 		return;
 
 	if (InputManager::MouseGrabbed()) {
-		float lr = static_cast<float>(ImGui::IsKeyDown(ImGuiKey_Z)) - static_cast<float>(ImGui::IsKeyDown(ImGuiKey_S));
-		float fb = static_cast<float>(ImGui::IsKeyDown(ImGuiKey_Q)) - static_cast<float>(ImGui::IsKeyDown(ImGuiKey_D));
+		Keybinds keys = m_Client->GetConfig()->GetKeys();
+		float lr = static_cast<float>(ImGui::IsKeyDown((ImGuiKey(keys[kaAvancer])))) -
+				   static_cast<float>(ImGui::IsKeyDown((ImGuiKey(keys[kaReculer]))));
+		float fb = static_cast<float>(ImGui::IsKeyDown((ImGuiKey(keys[kaGauche])))) -
+				   static_cast<float>(ImGui::IsKeyDown((ImGuiKey(keys[kaDroite]))));
 
 		// scale values in such a way that clamps ||(lr, fb)|| to 1.0
 		float scale = 1.0f / std::max(sqrt(lr * lr + fb * fb), 1.0f);
@@ -63,12 +68,13 @@ void PlayerController::Update(float delta) {
 
 		if (ImGui::IsKeyDown(ImGuiKey::ImGuiKey_Space) && m_OnGround) {
 			m_Dz = m_MaxDz;
-			NotifyListeners(&game::PlayerListener::OnPlayerJump);
+			NotifyListeners(&game::PlayerInputListener::OnLocalPlayerJump);
 		}
 
 		bool canShoot = m_ShootTimer.Update(delta);
 		if (ImGui::IsMouseDown(ImGuiMouseButton_Left) && canShoot) {
-			NotifyListeners(&game::PlayerListener::OnPlayerShoot, m_Player->GetPosition(), m_Player->GetYaw(), m_Player->GetPitch());
+			NotifyListeners(
+				&game::PlayerInputListener::OnLocalPlayerShoot, m_Player->GetPosition(), m_Player->GetYaw(), m_Player->GetPitch());
 			m_ShootTimer.ApplyCooldown();
 		}
 	}
@@ -97,7 +103,7 @@ void PlayerController::UpdatePosition(const float delta) {
 	// assumed to be a negative number
 	const float floor_dist = 0.0f - m_Player->GetPosition().y;
 
-	if (m_OnGround = dz <= floor_dist) {
+	if ((m_OnGround = (dz <= floor_dist))) {
 		dz = floor_dist;
 		m_Dz = 0.0f;
 	} else {

src/client/game/ClientGame.cpp

@@ -1,11 +1,14 @@
 #include "client/game/ClientGame.h"
 
 #include "blitz/misc/Log.h"
+#include "blitz/misc/Random.h"
 #include "blitz/protocol/PacketDispatcher.h"
 #include "blitz/protocol/packets/PlayerJoinPacket.h"
 #include "blitz/protocol/packets/PlayerLeavePacket.h"
 #include "blitz/protocol/packets/PlayerListPacket.h"
 #include "blitz/protocol/packets/PlayerPositionAndRotationPacket.h"
+#include "blitz/protocol/packets/PlayerShootPacket.h"
+#include "blitz/protocol/packets/UpdateHealthPacket.h"
 #include "client/Client.h"
 
 namespace blitz {
@@ -25,6 +28,8 @@ void ClientGame::RegisterHandlers() {
 	GetDispatcher()->RegisterHandler(protocol::PacketType::PlayerLeave, this);
 	GetDispatcher()->RegisterHandler(protocol::PacketType::PlayerList, this);
 	GetDispatcher()->RegisterHandler(protocol::PacketType::PlayerPositionAndRotation, this);
+	GetDispatcher()->RegisterHandler(protocol::PacketType::PlayerShoot, this);
+	GetDispatcher()->RegisterHandler(protocol::PacketType::UpdateHealth, this);
 }
 
 void ClientGame::HandlePacket(const protocol::PlayerJoinPacket* packet) {
@@ -46,6 +51,22 @@ void ClientGame::HandlePacket(const protocol::PlayerListPacket* packet) {
 	}
 }
 
+void ClientGame::HandlePacket(const protocol::UpdateHealthPacket* packet) {
+	game::Player* player = m_Client->GetGame()->GetPlayerById(m_Client->GetPlayerID());
+	player->SetHP(packet->GetNewHealth());
+
+	// we are dead
+	if (player->GetHP() <= 0.0f) {
+		player->SetPosition({utils::GetRandomReal(-10.0f, 10.0f), 0, utils::GetRandomReal(-10.0f, 10.0f)});
+	}
+}
+
+
+void ClientGame::HandlePacket(const protocol::PlayerShootPacket* packet) {
+	m_Client->NotifyListeners(
+		&GuiListener::OnPlayerShoot, packet->GetPlayer(), packet->GetPosition(), packet->GetYaw(), packet->GetPitch());
+}
+
 void ClientGame::HandlePacket(const protocol::PlayerPositionAndRotationPacket* packet) {
 	if (packet->GetPlayer() == m_Client->GetPlayerID())
 		return;
@@ -61,7 +82,6 @@ void ClientGame::HandlePacket(const protocol::PlayerPositionAndRotationPacket* p
 }
 
 void ClientGame::Tick(std::uint64_t delta) {
-	float deltaTime = static_cast<float>(delta) / 1000.0f;
 	for (auto& [playerId, player] : GetPlayers()) {
 		player.SetPosition(player.GetPosition() + player.GetVelocity() * (static_cast<float>(delta) / 100.0f));
 	}

src/client/gui/BlitzGui.cpp

@@ -1,7 +1,10 @@
 #include "client/gui/BlitzGui.h"
 
+#include "client/gui/Crosshair.h"
 #include "client/gui/GameChatGui.h"
+#include "client/gui/Hud.h"
 #include "client/gui/MainMenu.h"
+#include "client/gui/ServerGui.h"
 #include <imgui.h>
 
 namespace blitz {
@@ -11,6 +14,9 @@ BlitzGui::BlitzGui(Client* client) : GuiWidget(nullptr, client) {
 	Enable();
 	AddWidget(std::make_unique<GameChatGui>(this, client));
 	AddWidget(std::make_unique<MainMenu>(client));
+	AddWidget(std::make_unique<CrossHair>(client));
+	AddWidget(std::make_unique<ServerGui>(this, client));
+	AddWidget(std::make_unique<Hud>(this, client));
 	SetCustomTheme();
 }
 

src/client/gui/ColorFulText.cpp

@@ -1,13 +1,20 @@
 #include "client/gui/ColorFulText.h"
 
 #include <imgui.h>
+#include <imgui_internal.h>
 
 namespace blitz {
 namespace gui {
 
 void RenderColorfulText(const protocol::ColoredText& parts, float alpha) {
+	ImGuiContext& g = *ImGui::GetCurrentContext();
 	for (auto& part : parts) {
+		const bool need_backup = (g.CurrentWindow->DC.TextWrapPos < 0.0f);	// Keep existing wrap position if one is already set
+		if (need_backup)
+			ImGui::PushTextWrapPos(0.0f);
 		ImGui::TextColored({part.color.r, part.color.g, part.color.b, alpha}, "%s", part.text.c_str());
+		if (need_backup)
+			ImGui::PopTextWrapPos();
 		ImGui::SameLine();
 		ImGui::SetCursorPosX(ImGui::GetCursorPosX() - ImGui::CalcTextSize(".").x);
 	}

src/client/gui/CreateGameMenu.cpp

@@ -18,6 +18,9 @@ void CreateGameMenu::Render() {
 	SetNextWindowFullScreen();
 
 	static int InputPort = 0;
+	const static ImVec2 buttonSize = {300, 60};
+	auto displaySize = ImGui::GetIO().DisplaySize;
+	const static int paddingHeight = 40;
 
 	ImGui::Begin("CreateWindow", nullptr, GetWindowFullScreenFlags());
 	{
@@ -40,7 +43,9 @@ void CreateGameMenu::Render() {
 			}
 		}
 
-		if (ImGui::Button("Retour") || ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+		ImGui::SetCursorPosX(displaySize.x - buttonSize.x - paddingHeight);
+		ImGui::SetCursorPosY(displaySize.y - buttonSize.y - paddingHeight);
+		if (ImGui::Button("Retour", buttonSize) || ImGui::IsKeyPressed(ImGuiKey_Escape)) {
 			Disable();
 			m_Parent->Enable();
 		}

src/client/gui/Crosshair.cpp

@@ -0,0 +1,29 @@
+#include "client/gui/Crosshair.h"
+
+#include "client/Client.h"
+#include "client/render/loader/TextureLoader.h"
+#include <imgui.h>
+
+namespace blitz {
+namespace gui {
+
+CrossHair::CrossHair(Client* client) : GuiWidget(nullptr, client) {
+	m_CrossHairTexture = TextureLoader::LoadGLTexture("crosshair.png");
+}
+
+void CrossHair::Render() {
+	if (!m_Client->IsConnected())
+		return;
+
+	static const ImVec2 crossHairSize = {40, 40};
+
+	ImGui::SetNextWindowPos({0, 0});
+	ImGui::Begin("CrossHair", nullptr, GetWindowFullScreenFlags() | ImGuiWindowFlags_NoInputs);
+	ImGui::SetCursorPosX(ImGui::GetIO().DisplaySize.x / 2.0f - crossHairSize.x / 2.0f);
+	ImGui::SetCursorPosY(ImGui::GetIO().DisplaySize.y / 2.0f - crossHairSize.y / 2.0f);
+	ImGui::Image(reinterpret_cast<ImTextureID>(m_CrossHairTexture), crossHairSize);
+	ImGui::End();
+}
+
+}  // namespace gui
+}  // namespace blitz

src/client/gui/GameChatGui.cpp

@@ -21,22 +21,15 @@ GameChatGui::GameChatGui(GuiWidget* parent, Client* client) : GuiWidget(parent,
 }
 
 void GameChatGui::Draw(const char* title, bool* p_open) {
+	HistoryPos = -1;
 	static int chat_width = 620;
 	static int chat_height = 450;
 	static int chatInput_width = 590;
-	static int scrolling_width = chat_height - 90;
-	ImGui::SetNextWindowPos(ImVec2(0, ImGui::GetIO().DisplaySize.y - chat_height));
+	ImGui::SetNextWindowPos(ImVec2(0, ImGui::GetIO().DisplaySize.y - 2 * chat_height));
 	ImGui::SetNextWindowSize(ImVec2(chat_width, chat_height));
+	// const float footer_height_to_reserve = ImGui::GetStyle().ItemSpacing.y + ImGui::GetFrameHeightWithSpacing();
 	ImGui::Begin(title, p_open, GetWindowFullScreenFlags());
 	{
-		ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.0f, 0.0f, 0.0f, 0.73f));
-		if (ImGui::BeginChild("ChatContent", ImVec2(0, chat_height - 90), false, ImGuiWindowFlags_AlwaysVerticalScrollbar)) {
-			for (const auto& line : m_Lines) {
-				RenderColorfulText(line, 1);
-			}
-		}
-		ImGui::PopStyleColor();
-		ImGui::EndChild();
 		ImGuiInputTextFlags input_text_flags = ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_EscapeClearsAll;
 
 		if (m_FocusRequested) {
@@ -44,6 +37,10 @@ void GameChatGui::Draw(const char* title, bool* p_open) {
 			m_FocusRequested = false;
 		}
 
+		for (const auto& line : m_Lines) {
+			RenderColorfulText(line, 1);
+		}
+
 		const static ImVec4 chatColorInputText = {1.0f, 0.0f, 0.0f, 0.27f};
 		ImGui::SetNextItemWidth(chatInput_width);
 		ImGui::PushStyleColor(ImGuiCol_FrameBg, chatColorInputText);
@@ -51,6 +48,11 @@ void GameChatGui::Draw(const char* title, bool* p_open) {
 			m_Client->SendChatText(InputBuf);
 			InputBuf[0] = '\0';
 		}
+
+		if (ScrollToBottom || (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY()))
+			ImGui::SetScrollHereY(1.0f);
+		ScrollToBottom = false;
+
 		ImGui::PopStyleColor();
 	}
 
@@ -59,14 +61,18 @@ void GameChatGui::Draw(const char* title, bool* p_open) {
 
 void GameChatGui::DrawMini(const char* title, bool* p_open) {
 	static int chat_width = 620;
-	static int chat_height = 110;
-	ImGui::SetNextWindowPos(ImVec2(0, ImGui::GetIO().DisplaySize.y - chat_height));
+	static int chat_height = 225;
+	ImGui::SetNextWindowPos(ImVec2(0, ImGui::GetIO().DisplaySize.y - 3.5 * chat_height));
 	ImGui::SetNextWindowSize(ImVec2(chat_width, chat_height));
 	ImGui::Begin(title, p_open, GetWindowFullScreenFlags() | ImGuiWindowFlags_NoNav);
 	{
 		for (const auto& line : m_TempLines) {
 			RenderColorfulText(line, utils::EaseOutCubic(m_ChatDisplay / ChatFadeTime));
 		}
+
+		if (ScrollToBottom || (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY()))
+			ImGui::SetScrollHereY(1.0f);
+		ScrollToBottom = false;
 	}
 	ImGui::End();
 }

src/client/gui/Hud.cpp

@@ -0,0 +1,79 @@
+#include "client/gui/Hud.h"
+
+#include "client/Client.h"
+#include "client/game/ClientGame.h"
+#include "client/gui/GuiWidget.h"
+#include "client/render/loader/TextureLoader.h"
+#include <imgui.h>
+
+namespace blitz {
+namespace gui {
+
+Hud::Hud(GuiWidget* parent, Client* client) : GuiWidget(parent, client) {
+	m_GunTexture = TextureLoader::LoadGLTexture("fingergun.png");
+	m_JP = TextureLoader::LoadGLTexture("jp.png");
+}
+
+void Hud::Draw(const char* title, bool* p_open) {
+
+	SetNextWindowFullScreen();
+	ImGui::Begin(title, nullptr, GetWindowFullScreenFlags() | ImGuiWindowFlags_NoInputs);
+
+	auto displaySize = ImGui::GetIO().DisplaySize;
+	const static ImVec2 buttonSize = {300, 60};
+	const static ImVec2 fingergunSize = {256, 134.5};
+	const static ImVec2 jpSize = {256 / 2, 256 / 2};
+	const static int paddingHeight = 40;
+	const static ImVec2 pvBarPos = {displaySize.x / 2.2f, displaySize.y - 3 * paddingHeight};
+	const static ImVec2 progressSize = {100.0f, 30.0f};
+	const static ImVec2 currentWeaponPos = {
+		displaySize.x - buttonSize.x - 3 * paddingHeight, displaySize.y - buttonSize.y - 1.5f * paddingHeight};
+	const static ImVec2 currentWeaponPosImage = {
+		displaySize.x - fingergunSize.x - paddingHeight, displaySize.y - fingergunSize.y + 1.0f / 2.5f * paddingHeight};
+	ImVec2 spacing = ImGui::GetStyle().ItemInnerSpacing;
+
+	ImGui::SetCursorPosX(3 * paddingHeight);
+	ImGui::SetCursorPosY(pvBarPos.y - 2 * paddingHeight);
+	ImGui::BeginGroup();
+	ImGui::Image(reinterpret_cast<ImTextureID>(m_JP), jpSize);
+
+	ImGui::SameLine(0.0f, paddingHeight);
+
+	ImGui::BeginGroup();
+	{
+		game::Player* player = m_Client->GetGame()->GetPlayerById(m_Client->GetPlayerID());
+
+		if (player) {
+			ImGui::Text("PV : %.0f", player->GetHP());
+
+			ImGui::ProgressBar(static_cast<float>(player->GetHP() / 100.0f), progressSize, "");
+		}
+	}
+	ImGui::EndGroup();
+	ImGui::EndGroup();
+
+	ImGui::SetCursorPosX(currentWeaponPos.x);
+	ImGui::SetCursorPosY(currentWeaponPos.y);
+	ImGui::BeginGroup();
+	{
+		ImGui::Text("FingerGun");
+		ImGui::SameLine(0.0f, spacing.x * 50);
+		ImGui::Text("3 | 9");
+
+		ImGui::SetCursorPosX(currentWeaponPosImage.x);
+		ImGui::SetCursorPosY(currentWeaponPosImage.y);
+		ImGui::Image(reinterpret_cast<ImTextureID>(m_GunTexture), fingergunSize);
+	}
+	ImGui::EndGroup();
+
+	ImGui::End();
+}
+
+void Hud::Render() {
+	if (!m_Client->IsConnected())
+		return;
+
+	Draw("Hud Blitz", nullptr);
+}
+}  // namespace gui
+}  // namespace blitz

src/client/gui/JoinGameMenu.cpp

@@ -17,6 +17,9 @@ void JoinGameMenu::Render() {
 	SetNextWindowFullScreen();
 
 	static int InputPort = 25565;
+	const static ImVec2 buttonSize = {300, 60};
+	auto displaySize = ImGui::GetIO().DisplaySize;
+	const static int paddingHeight = 40;
 
 	ImGui::Begin("JoinWindow", nullptr, GetWindowFullScreenFlags());
 	{
@@ -44,7 +47,9 @@ void JoinGameMenu::Render() {
 			}
 		}
 
-		if (ImGui::Button("Retour") || ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+		ImGui::SetCursorPosX(displaySize.x - buttonSize.x - paddingHeight);
+		ImGui::SetCursorPosY(displaySize.y - buttonSize.y - paddingHeight);
+		if (ImGui::Button("Retour", buttonSize) || ImGui::IsKeyPressed(ImGuiKey_Escape)) {
 			Disable();
 			m_Parent->Enable();
 		}

src/client/gui/OptionsMenu.cpp

@@ -1,5 +1,7 @@
 #include "client/gui/OptionsMenu.h"
 
+#include "blitz/misc/Format.h"
+#include "blitz/misc/Log.h"
 #include "client/Client.h"
 #include "client/display/InputManager.h"
 #include "client/gui/FPSMenu.h"
@@ -9,7 +11,86 @@
 namespace blitz {
 namespace gui {
 
-OptionsMenu::OptionsMenu(GuiWidget* parent, Client* client) : GuiWidget(parent, client) {
+static std::string ActionNames[kaMax] = {
+	"Avancer",
+	"Reculer",
+	"Droite",
+	"Gauche",
+};
+
+
+
+
+
+static std::string GetActionName(KeyAction action) {
+	return ActionNames[action];
+}
+
+
+
+
+
+static std::string GetImGuiKeyName(int key) {
+	if (key == ImGuiKey_None) {
+		return "?";
+	}
+	return ImGui::GetKeyName(static_cast<ImGuiKey>(key));
+}
+
+
+
+
+
+void OptionsMenu::HotkeyBindingButton() {
+	for (std::size_t i = 0; i < m_Client->GetConfig()->GetKeys().size(); i++) {
+		if (ImGui::Button(utils::Format("%s##%i", GetKeyActionCodeName(KeyAction(i)).c_str(), i).c_str())) {
+			m_IsKeyPopupOpen = true;
+			m_CurrentAction = KeyAction(i);
+			ImGui::OpenPopup("Changer de touche");
+		}
+		ImGui::SameLine();
+		ImGui::Text("%s", GetActionName(KeyAction(i)).c_str());
+	}
+}
+
+
+
+
+
+void OptionsMenu::HotkeyBindingPopUp() {
+	// Always center this window when appearing
+	ImVec2 center = ImGui::GetMainViewport()->GetCenter();
+	ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
+
+	if (ImGui::BeginPopupModal("Changer de touche", NULL, ImGuiWindowFlags_AlwaysAutoResize)) {
+		ImGui::Text("Entrez la touche pour : ");
+		ImGui::SameLine();
+		ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "%s", GetActionName(m_CurrentAction).c_str());
+		ImGui::Text("Si vous voulez annulez cette action, appuyez sur Echap !");
+		ImGui::Dummy({0, 40});
+		ImGui::Text("La touche pour ");
+		ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "%s", GetActionName(m_CurrentAction).c_str());
+		ImGui::SameLine();
+		ImGui::Text(" est : ");
+		ImGui::SameLine();
+		ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "%s", GetKeyActionCodeName(m_CurrentAction).c_str());
+
+		if (m_KeyPopupShouldClose && m_Timer.Update(ImGui::GetIO().DeltaTime * 1000)) {
+			m_KeyPopupShouldClose = false;
+			m_IsKeyPopupOpen = false;
+			ImGui::CloseCurrentPopup();
+		}
+
+		ImGui::EndPopup();
+	}
+}
+
+
+
+
+
+OptionsMenu::OptionsMenu(GuiWidget* parent, Client* client) :
+	GuiWidget(parent, client), m_IsKeyPopupOpen(false), m_KeyPopupShouldClose(false) {
 	AddWidget(std::make_unique<FPSMenu>(this, client));
 	InputManager::BindKeyDownCallback(std::bind(&OptionsMenu::OnKeyEvent, this, std::placeholders::_1));
 
@@ -20,7 +101,37 @@ OptionsMenu::OptionsMenu(GuiWidget* parent, Client* client) : GuiWidget(parent,
 	SDL_GL_SetSwapInterval(m_VSync);
 }
 
-void OptionsMenu::OnKeyEvent(int key) {}
+
+
+
+
+void OptionsMenu::OnKeyEvent(int key) {
+	if (!m_IsKeyPopupOpen)
+		return;
+
+	if (key == ImGuiKey_Escape) {
+		m_KeyPopupShouldClose = true;
+		ImGui::GetIO().ClearInputKeys();  // releases the Escape key
+		return;
+	}
+
+	m_Client->GetConfig()->GetKeys()[static_cast<std::size_t>(m_CurrentAction)] = key;
+	m_KeyPopupShouldClose = true;
+
+	utils::LOG(std::to_string(key));
+}
+
+
+
+
+
+std::string OptionsMenu::GetKeyActionCodeName(KeyAction act) {
+	return GetImGuiKeyName(static_cast<int>(m_Client->GetConfig()->GetKeys()[act]));
+}
+
+
+
+
 
 void OptionsMenu::Render() {
 	GuiWidget::Render();
@@ -34,6 +145,8 @@ void OptionsMenu::Render() {
 	if (!IsEnabled())
 		return;
 
+	const static ImVec2 buttonSize = {300, 60};
+	auto displaySize = ImGui::GetIO().DisplaySize;
 	const static int paddingHeight = 40;
 	const static int startPos = 15;
 
@@ -47,31 +160,60 @@ void OptionsMenu::Render() {
 
 		ImGui::NewLine();
 
-		if (ImGui::Checkbox("AFFICHER LES FPS", &m_ShowFPS)) {
-			m_SubWidgets[0]->SetState(m_ShowFPS);
-			m_Client->GetConfig()->SetFPSDisplay(m_ShowFPS);
-		}
-
-		if (ImGui::Checkbox("VSync", &m_VSync)) {
-			SDL_GL_SetSwapInterval(m_VSync);
-			m_Client->GetConfig()->SetVSync(m_VSync);
-		}
-
-		if (ImGui::Button("Retour") || ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+		if (ImGui::Button("Retour") || (ImGui::IsKeyPressed(ImGuiKey_Escape, false) && !m_IsKeyPopupOpen)) {
 			Disable();
 			if (m_Client->IsConnected()) {
-				InputManager::GrabMouse(true);
+				ImGui::SetCursorPosX(displaySize.x - buttonSize.x - paddingHeight);
+				ImGui::SetCursorPosY(displaySize.y - 2 * buttonSize.y - paddingHeight);
 			} else {
-				m_Parent->Enable();
+				ImGui::SetCursorPosX(displaySize.x - buttonSize.x - paddingHeight);
+				ImGui::SetCursorPosY(displaySize.y - buttonSize.y - paddingHeight);
 			}
-		}
-
-		if (m_Client->IsConnected()) {
-			if (ImGui::Button("Quitter la partie")) {
-				m_Client->Disconnect();
+			ImGui::BeginGroup();
+			if (ImGui::Button("Retour", buttonSize) || ImGui::IsKeyPressed(ImGuiKey_Escape)) {
 				Disable();
-				m_Parent->Enable();
+				if (m_Client->IsConnected()) {
+					InputManager::GrabMouse(true);
+				} else {
+					m_Parent->Enable();
+				}
 			}
+			if (m_Client->IsConnected()) {
+				if (ImGui::Button("Quitter la partie", buttonSize)) {
+					m_Client->Disconnect();
+					Disable();
+					m_Parent->Enable();
+				}
+			}
+			ImGui::EndGroup();
+		}
+		ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_None;
+		if (ImGui::BeginTabBar("OPTIONS", tab_bar_flags)) {
+			if (ImGui::BeginTabItem("CONTROLES")) {
+				// Always center this window when appearing
+				ImVec2 center = ImGui::GetMainViewport()->GetCenter();
+				ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
+
+				HotkeyBindingButton();
+				HotkeyBindingPopUp();
+				ImGui::EndTabItem();
+			}
+			if (ImGui::BeginTabItem("GRAPHISMES")) {
+				if (ImGui::Checkbox("AFFICHER LES FPS", &m_ShowFPS)) {
+					m_SubWidgets[0]->SetState(m_ShowFPS);
+					m_Client->GetConfig()->SetFPSDisplay(m_ShowFPS);
+				}
+
+				if (ImGui::Checkbox("VSync", &m_VSync)) {
+					SDL_GL_SetSwapInterval(m_VSync);
+					m_Client->GetConfig()->SetVSync(m_VSync);
+				}
+				ImGui::EndTabItem();
+			}
+			if (ImGui::BeginTabItem("AUDIO")) {
+				ImGui::EndTabItem();
+			}
+			ImGui::EndTabBar();
 		}
 	}
 	ImGui::End();

src/client/gui/ServerGui.cpp

@@ -0,0 +1,32 @@
+#include "client/gui/ServerGui.h"
+
+#include "client/Client.h"
+#include "server/Server.h"
+#include <imgui.h>
+
+namespace blitz {
+namespace gui {
+
+ServerGui::ServerGui(GuiWidget* parent, Client* client) : GuiWidget(parent, client) {}
+
+void ServerGui::Render() {
+	if (!m_Client->IsAdmin())
+		return;
+
+	if (ImGui::IsKeyPressed(ImGuiKey_P)) {
+		ImGui::OpenPopup("Admin panel");
+	}
+
+	static bool popup_opened = true;
+
+	// this is uggly but okay for now
+	if (ImGui::BeginPopupModal("Admin panel", &popup_opened)) {
+		if (ImGui::Button("Add Bot")) {
+			m_Client->GetServer()->AddBot();
+		}
+		ImGui::EndPopup();
+	}
+}
+
+}  // namespace gui
+}  // namespace blitz

src/client/render/BulletRenderer.cpp

@@ -0,0 +1,79 @@
+#include "client/render/BulletRenderer.h"
+
+#include "blitz/maths/Maths.h"
+#include "blitz/misc/Log.h"
+#include "blitz/misc/Test.h"
+#include "client/render/Camera.h"
+#include "client/render/OpenGL.h"
+#include "client/render/loader/GLLoader.h"
+#include "client/render/shader/BulletShader.h"
+#include <imgui.h>
+
+namespace blitz {
+namespace render {
+
+static const float BULLET_DECAY_TIME = 5.0f;
+
+BulletRenderer::BulletRenderer(const Camera& camera) : m_Camera(camera) {
+	m_Shader = std::make_unique<shader::BulletShader>();
+	blitz_debug_assert(m_Shader->LoadShader());
+
+	m_BulletModel = ModelLoader::LoadModel("cube.glb");
+}
+
+BulletRenderer::~BulletRenderer() {}
+
+void BulletRenderer::AddBullet(const Vec3f& origin, float yaw, float pitch) {
+	static const float TRAIL_LENGHT = 50;
+
+	Vec3f direction = {
+		std::cos(yaw) * std::cos(pitch),
+		std::sin(pitch),
+		std::sin(yaw) * std::cos(pitch),
+	};
+
+	Vec3f middle = origin + direction * (TRAIL_LENGHT / 2.0f);
+
+	Mat4f rotate = maths::Dot(maths::RotateX(-pitch), maths::RotateY(yaw + maths::PI / 2));
+	Mat4f scale = maths::Scale({0.01, 0.01, TRAIL_LENGHT / 2.0f - 0.2f});
+	Mat4f translate = maths::Translate(middle);
+
+	Mat4f transform = maths::Dot(scale, maths::Dot(rotate, translate));
+
+	Trail trail{transform, BULLET_DECAY_TIME};
+	m_Trails.push_back(trail);
+}
+
+void BulletRenderer::Update(float delta) {
+	for (Trail& trail : m_Trails) {
+		trail.m_Decay -= delta;
+	}
+
+	for (std::size_t i = 0; i < m_Trails.size(); i++) {
+		if (m_Trails[i].m_Decay < 0) {
+			m_Trails.erase(m_Trails.begin() + i);
+		}
+	}
+
+	m_Shader->Start();
+	m_Shader->SetProjectionMatrix(m_Camera.GetPerspectiveMatrix());
+	m_Shader->SetViewMatrix(m_Camera.GetViewMatrix());
+}
+
+void BulletRenderer::Render() {
+	m_Shader->Start();
+
+	// un peu frauduleux
+	ModelLoader::VaoPtr& vao = m_BulletModel.mVaos[0];
+
+	vao->Bind();
+	for (Trail& trail : m_Trails) {
+		m_Shader->SetDecay(trail.m_Decay / BULLET_DECAY_TIME);
+		m_Shader->SetTransform(trail.m_Transform);
+		glDrawElements(GL_TRIANGLES, vao->GetVertexCount(), GL_UNSIGNED_INT, nullptr);
+	}
+	vao->Unbind();
+}
+
+}  // namespace render
+}  // namespace blitz

src/client/render/Camera.cpp

@@ -1,13 +1,13 @@
 #include "client/render/Camera.h"
 
 #include "blitz/game/Player.h"
-#include "blitz/misc/Maths.h"
+#include "blitz/maths/Maths.h"
 #include "imgui.h"
 
 namespace blitz {
 namespace render {
 
-static const float eyeHeight = 1.25f;
+static const float EyeHeight = 1.25f;
 
 void Camera::Update(float delta) {
 	int windowWidth = ImGui::GetIO().DisplaySize.x;
@@ -21,6 +21,10 @@ void Camera::Update(float delta) {
 	}
 }
 
+float Camera::GetPlayerEyeHeight() {
+	return EyeHeight;
+}
+
 Mat4f Camera::GetViewMatrix() const {
 	Vec3f front = {
 		std::cos(m_Player->GetYaw()) * std::cos(m_Player->GetPitch()),
@@ -28,7 +32,7 @@ Mat4f Camera::GetViewMatrix() const {
 		std::sin(m_Player->GetYaw()) * std::cos(m_Player->GetPitch()),
 	};
 
-	return maths::Look(m_Player->GetPosition() + Vec3f{0, eyeHeight, 0}, front, {0, 1, 0});
+	return maths::Look(m_Player->GetPosition() + Vec3f{0, EyeHeight, 0}, front, {0, 1, 0});
 }
 
 }  // namespace render

src/client/render/MainRenderer.cpp

@@ -1,23 +1,22 @@
 #include "client/render/MainRenderer.h"
 
+#include "blitz/maths/Maths.h"
 #include "blitz/misc/Easing.h"
 #include "blitz/misc/Format.h"
 #include "blitz/misc/Log.h"
-#include "blitz/misc/Maths.h"
 #include "blitz/misc/Test.h"
 #include "blitz/misc/Time.h"
 #include "client/Client.h"
 #include "client/game/ClientGame.h"
+#include "client/render/OpenGL.h"
 #include "client/render/loader/GLLoader.h"
 #include "client/render/loader/ModelLoader.h"
 #include "client/render/loader/TextureLoader.h"
+#include "client/render/shader/BulletShader.h"
 #include "client/render/shader/EntityShader.h"
 #include "client/render/shader/GunShader.h"
 #include "client/render/shader/WorldShader.h"
 #include "imgui.h"
-#include <glbinding/gl/gl.h>
-
-using namespace gl;
 
 namespace blitz {
 namespace render {
@@ -25,7 +24,8 @@ namespace render {
 static const Vec4f SkyColor = {0.6, 0.8, 1, 1};
 static const Vec4f MenuColor = {0, 0, 0, 0};
 
-MainRenderer::MainRenderer(Client* client) : m_Client(client), m_ShootTime(0) {
+MainRenderer::MainRenderer(Client* client) :
+	m_Client(client), m_PlayerController(m_Client), m_ShootTime(0), m_BulletRenderer(m_Camera) {
 
 	LoadModels();
 
@@ -49,6 +49,9 @@ MainRenderer::MainRenderer(Client* client) : m_Client(client), m_ShootTime(0) {
 	glEnable(GL_CULL_FACE);
 	glCullFace(GL_FRONT);
 	glFrontFace(GL_CW);
+
+	glEnable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 }
 
 MainRenderer::~MainRenderer() {}
@@ -89,6 +92,8 @@ void MainRenderer::Render() {
 	RenderWorld();
 	RenderPlayers();
 	RenderGun();
+
+	m_BulletRenderer.Render();
 }
 
 void MainRenderer::RenderPlayers() {
@@ -101,10 +106,14 @@ void MainRenderer::RenderPlayers() {
 	}
 }
 
-void MainRenderer::OnPlayerShoot(const Vec3f& position, float yaw, float pitch) {
+void MainRenderer::OnLocalPlayerShoot(const Vec3f& position, float yaw, float pitch) {
 	m_ShootTime = 1.0f;
 }
 
+void MainRenderer::OnPlayerShoot(game::PlayerID player, const Vec3f& position, float yaw, float pitch) {
+	m_BulletRenderer.AddBullet(position + Vec3f{0.0f, Camera::GetPlayerEyeHeight(), 0.0f}, yaw, pitch);
+}
+
 void MainRenderer::RenderGun() {
 	if (!m_Camera.GetAttachedPlayer())
 		return;
@@ -145,17 +154,21 @@ void MainRenderer::Update() {
 
 	m_PlayerController.Update(delta);
 	m_Camera.Update(delta);
+	m_BulletRenderer.Update(delta);
+
+	Mat4f projectionMatrix = m_Camera.GetPerspectiveMatrix();
+	Mat4f viewMatrix = m_Camera.GetViewMatrix();
 
 	m_EntityShader->Start();
-	m_EntityShader->SetProjectionMatrix(m_Camera.GetPerspectiveMatrix());
-	m_EntityShader->SetViewMatrix(m_Camera.GetViewMatrix());
+	m_EntityShader->SetProjectionMatrix(projectionMatrix);
+	m_EntityShader->SetViewMatrix(viewMatrix);
 
 	m_WorldShader->Start();
-	m_WorldShader->SetProjectionMatrix(m_Camera.GetPerspectiveMatrix());
-	m_WorldShader->SetViewMatrix(m_Camera.GetViewMatrix());
+	m_WorldShader->SetProjectionMatrix(projectionMatrix);
+	m_WorldShader->SetViewMatrix(viewMatrix);
 
 	m_GunShader->Start();
-	m_GunShader->SetProjectionMatrix(m_Camera.GetPerspectiveMatrix());
+	m_GunShader->SetProjectionMatrix(projectionMatrix);
 
 	m_ShootTime = std::max(0.0f, m_ShootTime - delta);
 }

src/client/render/loader/GLLoader.cpp

@@ -1,9 +1,7 @@
 #include "client/render/loader/GLLoader.h"
 
 #include "blitz/misc/Log.h"
-#include <glbinding/gl/gl.h>
-
-using namespace gl;
+#include "client/render/OpenGL.h"
 
 namespace blitz {
 namespace GL {

src/client/render/loader/TextureLoader.cpp

@@ -3,12 +3,10 @@
 #include "client/AssetsManager.h"
 #define STB_IMAGE_IMPLEMENTATION
 #include "blitz/misc/Log.h"
+#include "client/render/OpenGL.h"
 #include "stb_image.h"
-#include <glbinding/gl/gl.h>
 #include <stdexcept>
 
-using namespace gl;
-
 namespace blitz {
 namespace TextureLoader {
 

src/client/render/shader/BulletShader.cpp

@@ -0,0 +1,67 @@
+#include "client/render/shader/BulletShader.h"
+
+namespace blitz {
+namespace shader {
+
+static const std::string vertexSource = ShaderProgram::GetShaderHeader() + R"(
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in float decay;
+
+uniform mat4 viewMatrix;
+uniform mat4 projectionMatrix;
+uniform mat4 modelMatrix;
+
+out float pass_decay;
+
+void main(void){
+	vec4 worldPos = modelMatrix * vec4(position, 1.0);
+    pass_decay = decay;
+	gl_Position = projectionMatrix * viewMatrix * worldPos;
+}
+)";
+
+static const std::string fragmentSource = ShaderProgram::GetShaderHeader() + R"(
+
+in float pass_decay;
+
+out vec4 out_color;
+
+uniform float alpha;
+
+void main(void){
+	out_color = vec4(1.0, 0.0, 0.0, alpha);
+}
+)";
+
+BulletShader::BulletShader() : ShaderProgram() {}
+
+bool BulletShader::LoadShader() {
+	return ShaderProgram::LoadProgram(vertexSource, fragmentSource);
+}
+
+void BulletShader::GetAllUniformLocation() {
+	m_LocationViewMatrix = static_cast<unsigned int>(GetUniformLocation("viewMatrix"));
+	m_LocationProjectionMatrix = static_cast<unsigned int>(GetUniformLocation("projectionMatrix"));
+	m_LocationTransform = static_cast<unsigned int>(GetUniformLocation("modelMatrix"));
+	m_LocationAlpha = static_cast<unsigned int>(GetUniformLocation("alpha"));
+}
+
+void BulletShader::SetProjectionMatrix(const Mat4f& proj) const {
+	LoadMat4(m_LocationProjectionMatrix, proj);
+}
+
+void BulletShader::SetViewMatrix(const Mat4f& view) const {
+	LoadMat4(m_LocationViewMatrix, view);
+}
+
+void BulletShader::SetDecay(float alpha) const {
+	LoadFloat(m_LocationAlpha, alpha);
+}
+
+void BulletShader::SetTransform(const Mat4f& trans) const {
+	LoadMat4(m_LocationTransform, trans);
+}
+
+}  // namespace shader
+}  // namespace blitz

src/client/render/shader/EntityShader.cpp

@@ -44,6 +44,7 @@ void main(void){
 	float brightness = diffuse;
 
 	out_color = vec4(1.0, 1.0, 1.0, 1.0) * brightness;
+	out_color.w = 1.0;
 }
 )";
 

src/client/render/shader/GunShader.cpp

@@ -35,6 +35,7 @@ out vec4 out_color;
 void main(void){
 
 	out_color = pos;
+	out_color.w = 1.0;
 	// out_color = gl_Position + vec4(0.5, 0.5, 0.5, 0);
 	// out_color = texture(textureSampler, pass_textureCoords);
 

src/client/render/shader/ShaderProgram.cpp

@@ -2,14 +2,12 @@
 
 #include "blitz/misc/Format.h"
 #include "blitz/misc/Log.h"
+#include "client/render/OpenGL.h"
 #include <fstream>
-#include <glbinding/gl/gl.h>
 #include <iostream>
 #include <sstream>
 #include <vector>
 
-using namespace gl;
-
 namespace blitz {
 namespace shader {
 

src/client/render/shader/WorldShader.cpp

@@ -53,7 +53,7 @@ void main(void){
 
 	float lightDistance = length(toLightVector);
 
-	const vec3 attenuation = vec3(0.3, 0.3, 0.03);
+	const vec3 attenuation = vec3(0.3, 0.03, 0);
 	float attenuationFactor = attenuation.x + attenuation.y * lightDistance + attenuation.z * lightDistance * lightDistance;
 
 	vec3 unitNormal = normalize(surfaceNormal);
@@ -71,6 +71,7 @@ void main(void){
 	float brightness = (diffuse + specular) / attenuationFactor;
 
 	out_color = brightness * texture(textureSampler, pass_textureCoords);
+	out_color.w = 1.0;
 
 }
 )";

src/server/Server.cpp

@@ -3,6 +3,7 @@
 #include "blitz/game/Game.h"
 #include "blitz/misc/Format.h"
 #include "blitz/misc/Log.h"
+#include "blitz/misc/Random.h"
 #include "blitz/misc/Time.h"
 #include "blitz/protocol/PacketFactory.h"
 #include "blitz/protocol/packets/ChatPacket.h"
@@ -13,7 +14,7 @@
 namespace blitz {
 namespace server {
 
-Server::Server() : m_ServerRunning(false), m_TickCounter(SERVER_TPS), m_Game(this) {}
+Server::Server() : m_TickCounter(SERVER_TPS), m_Game(this), m_ServerRunning(false) {}
 
 Server::~Server() {
 	StopThread();
@@ -100,9 +101,9 @@ void Server::Tick(std::uint64_t delta) {
 }
 
 void Server::Accept() {
-	static std::uint8_t newPlayerID = 0;
 	network::TCPSocket newSocket;
 	if (m_Listener.Accept(newSocket)) {
+		game::PlayerID newPlayerID = GetNewPlayerID();
 		auto con = std::make_unique<ServerConnexion>(this, newSocket, newPlayerID);
 		m_Connections.insert(std::move(ConnexionMap::value_type{newPlayerID, std::move(con)}));
 		m_Connections[newPlayerID]->Start();
@@ -110,6 +111,13 @@ void Server::Accept() {
 	}
 }
 
+game::PlayerID Server::GetNewPlayerID() {
+	static game::PlayerID lastPlayerID = 0;
+	game::PlayerID newPlayerID = lastPlayerID;
+	lastPlayerID++;
+	return newPlayerID;
+}
+
 void Server::UpdateSockets() {
 	static std::vector<std::int16_t> closeConnexions;
 	for (auto& connection : m_Connections) {
@@ -154,5 +162,16 @@ std::uint16_t Server::GetListeningPort() {
 	return m_Listener.GetListeningPort();
 }
 
+void Server::AddBot() {
+	game::PlayerID botID = GetNewPlayerID();
+
+	m_Game.AddPlayer(botID, "Bot " + std::to_string(static_cast<unsigned int>(botID)));
+
+	// set the bot at a random location to be able to see several of them
+	game::Player* botPlayer = m_Game.GetPlayerById(botID);
+	botPlayer->SetPosition({utils::GetRandomReal(-10.0f, 10.0f), 0.0f, utils::GetRandomReal(-10.0f, 10.0f)});
+	botPlayer->SetBot();
+}
+
 }  // namespace server
 }  // namespace blitz

src/server/ServerConnexion.cpp

@@ -15,6 +15,7 @@
 #include "blitz/protocol/packets/PlayerListPacket.h"
 #include "blitz/protocol/packets/PlayerLoginPacket.h"
 #include "blitz/protocol/packets/PlayerPositionAndRotationPacket.h"
+#include "blitz/protocol/packets/PlayerShootPacket.h"
 #include "client/gui/ColorFulText.h"
 #include "server/Server.h"
 #include <unordered_map>
@@ -91,24 +92,14 @@ void ServerConnexion::InitPlayerChatColor() {
 }
 
 void ServerConnexion::HandlePacket(const protocol::PlayerLoginPacket* packet) {
-	game::Player newPlayer{m_ID};
-	newPlayer.SetName(packet->GetPlayerName());
 
 	SendPlayers();
 
-	m_Server->GetGame().GetPlayers().insert({m_ID, newPlayer});
+	m_Server->GetGame().AddPlayer(m_ID, packet->GetPlayerName());
 
 	m_Player = m_Server->GetGame().GetPlayerById(m_ID);
 
-	protocol::PlayerJoinPacket joinPacket(m_ID, m_Player->GetName());
-	m_Server->BroadcastPacket(&joinPacket);
-
 	InitPlayerChatColor();
-
-	std::string joinMessage = utils::Format("%s a rejoint la partie !", packet->GetPlayerName().c_str());
-
-	utils::LOG("[Server] " + joinMessage);
-	m_Server->BroadcastChatMessage(protocol::ChatPacket::GetTextColor(protocol::YELLOW) + joinMessage);
 }
 
 void ServerConnexion::HandlePacket(const protocol::KeepAlivePacket* packet) {
@@ -141,7 +132,10 @@ void ServerConnexion::HandlePacket(const protocol::PlayerPositionAndRotationPack
 }
 
 void ServerConnexion::HandlePacket(const protocol::PlayerShootPacket* packet) {
-	utils::LOGD(utils::Format("[Server] Le joueur %s a essayé de tirer", m_Player->GetName().c_str()));
+	protocol::PlayerShootPacket broadcastShoot(packet->GetPosition(), packet->GetYaw(), packet->GetPitch(), m_Player->GetID());
+	m_Server->BroadcastPacket(&broadcastShoot);
+
+	m_Server->GetGame().CheckShoot(m_Player->GetID(), packet->GetPosition(), packet->GetYaw(), packet->GetPitch());
 }
 
 void ServerConnexion::Start() {

src/server/game/ServerGame.cpp

@@ -1,7 +1,15 @@
 #include "server/game/ServerGame.h"
 
+#include "blitz/maths/Physics.h"
+#include "blitz/misc/Format.h"
+#include "blitz/misc/Log.h"
+#include "blitz/misc/Random.h"
+#include "blitz/protocol/packets/ChatPacket.h"
+#include "blitz/protocol/packets/PlayerJoinPacket.h"
 #include "blitz/protocol/packets/PlayerPositionAndRotationPacket.h"
+#include "blitz/protocol/packets/UpdateHealthPacket.h"
 #include "server/Server.h"
+#include <cmath>
 
 namespace blitz {
 namespace server {
@@ -23,5 +31,73 @@ void ServerGame::SendPlayerPositions() {
 	}
 }
 
+void ServerGame::CheckShoot(game::PlayerID shooter, Vec3f position, float yaw, float pitch) {
+	maths::Ray shootRay;
+	shootRay.origin = position + Vec3f{0.0, 1.75, 0.0};
+	shootRay.direction = {
+		std::cos(yaw) * std::cos(pitch),
+		std::sin(pitch),
+		std::sin(yaw) * std::cos(pitch),
+	};
+
+	static const maths::AABB playerStaticAABB = {Vec3f{-0.5f, 0.0f, -0.5f}, Vec3f{0.5f, 1.8f, 0.5f}};
+
+	bool shootLanded = false;
+
+	game::Player* shooterPlayer = GetPlayerById(shooter);
+
+	for (auto& [playerId, player] : GetPlayers()) {
+		if (playerId != shooter && maths::Intersects(shootRay, playerStaticAABB + player.GetPosition())) {
+			DamagePlayer(player, *shooterPlayer);
+			shootLanded = true;
+		}
+	}
+
+	shooterPlayer->GetStats().m_ShootCount++;
+	if (shootLanded)
+		shooterPlayer->GetStats().m_ShootSuccessCount++;
+}
+
+void ServerGame::AddPlayer(game::PlayerID player, const std::string& name) {
+	Game::AddPlayer(player, name);
+
+	protocol::PlayerJoinPacket joinPacket(player, name);
+	m_Server->BroadcastPacket(&joinPacket);
+
+	std::string joinMessage = utils::Format("%s a rejoint la partie !", name.c_str());
+
+	utils::LOG("[Server] " + joinMessage);
+	m_Server->BroadcastChatMessage(protocol::ChatPacket::GetTextColor(protocol::YELLOW) + joinMessage);
+}
+
+void ServerGame::RemovePlayer(game::PlayerID player) {
+	Game::RemovePlayer(player);
+}
+
+void ServerGame::DamagePlayer(game::Player& player, game::Player& shooter) {
+	static float MAX_HP = 100;
+	static float GUN_DAMAGE = 50;
+
+	UpdateHP(player, player.GetHP() - GUN_DAMAGE);
+
+	// player is dead
+	if (player.GetHP() <= 0.0f) {
+		UpdateHP(player, MAX_HP);
+		player.GetStats().m_Deaths++;
+		shooter.GetStats().m_Kills++;
+		player.SetPosition({utils::GetRandomReal(-10.0f, 10.0f), 0.0f, utils::GetRandomReal(-10.0f, 10.0f)});
+	}
+}
+
+void ServerGame::UpdateHP(game::Player& player, float newHP) {
+	player.SetHP(newHP);
+
+	if (player.IsBot())
+		return;
+
+	protocol::UpdateHealthPacket packet(player.GetHP());
+	m_Server->GetConnexions().at(player.GetID())->SendPacket(&packet);
+}
+
 }  // namespace server
 }  // namespace blitz

test/test_compression.cpp

@@ -0,0 +1,45 @@
+#include "blitz/misc/Test.h"
+
+#include "blitz/misc/Compression.h"
+
+void ReciprocalTest() {
+	blitz::DataBuffer original;
+    original << "Some data to compress and decompress";
+
+	// Use your compression functions here
+	blitz::DataBuffer compressed = blitz::utils::Compress(original);
+	blitz::DataBuffer decompressed = blitz::utils::Decompress(compressed);
+
+	// Check that after compressing and then decompressing, we get back the original data
+	blitz_test_assert(original == decompressed);
+}
+
+void CompressionTest() {
+	blitz::DataBuffer original;
+    original << "Some data to compresssssssssssssssssssssssssssssssssssssssssssssssssssssssssss";
+
+	// Use your compression functions here
+	blitz::DataBuffer compressed = blitz::utils::Compress(original);
+
+	// Check that the compressed data is smaller than the original
+	blitz_test_assert(compressed.GetSize() < original.GetSize());
+}
+
+void DecompressionTest() {
+	blitz::DataBuffer original;
+    original << "Some data to compress and decompress";
+
+	// Use your compression functions here
+	blitz::DataBuffer compressed = blitz::utils::Compress(original);
+	blitz::DataBuffer decompressed = blitz::utils::Decompress(compressed);
+
+	// Check that the decompressed data is the same size as the original
+	blitz_test_assert(original.GetSize() == decompressed.GetSize());
+}
+
+int main() {
+	ReciprocalTest();
+	CompressionTest();
+	DecompressionTest();
+	return BLITZ_TEST_SUCCESSFUL;
+}

test/test_intersects.cpp

@@ -0,0 +1,105 @@
+#include "blitz/misc/Test.h"
+
+#include "blitz/maths/Physics.h"
+#include "blitz/misc/Log.h"
+#include "blitz/misc/Format.h"
+#include <iostream>
+#include <ostream>
+#include <limits>
+
+using namespace blitz;
+using namespace maths;
+
+#define let auto // sexy boiiii
+
+static void test_left() {
+    let box = AABB { {-1.0f, -1.0f, -1.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {-2.0f, 0.0f, 0.0f}, {1.0f, 0.0f, 0.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_right() {
+    let box = AABB { {-1.0f, -1.0f, -1.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {2.0f, 0.0f, 0.0f}, {-1.0f, 0.0f, 0.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_forward() {
+    let box = AABB { {-1.0f, -1.0f, -1.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.0f, 2.0f, 0.0f}, {0.0f, -1.0f, 0.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_backward() {
+    let box = AABB { {-1.0f, -1.0f, -1.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.0f, -2.0f, 0.0f}, {0.0f, 1.0f, 0.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_above() {
+    let box = AABB { {-1.0f, -1.0f, -1.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.0f, 0.0f, 2.0f}, {0.0f, 0.0f, -1.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_below() {
+    let box = AABB { {-1.0f, -1.0f, -1.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.0f, 0.0f, -2.0f}, {0.0f, 0.0f, 1.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_shifted() {
+    let box = AABB { {-1.0f, -1.0f, -1.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {-3.0f, 0.0f, 100.0f}, {1.0f, 0.0f, 0.0f} };
+
+    blitz_test_assert(!Intersects(ray, box));
+}
+
+static void test_corner_inside() {
+    let box = AABB { {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.0f, 0.0f, 0.0f}, {0.5f, 0.5f, 0.5f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_corner_inside_weird() {
+    let box = AABB { {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_corner_inside_opposite_big() {
+    let box = AABB { {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.0f, 0.0f, 0.0f}, {1.5f, 1.5f, 1.5f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+static void test_corner_inside_opposite_weird() {
+    let box = AABB { {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f} };
+    let ray = Ray { {0.4f, 0.4f, 0.4f}, {-1.0f, -1.0f, -1.0f} };
+
+    blitz_test_assert(Intersects(ray, box));
+}
+
+int main(int argc, const char* args[]) {
+    test_left();
+    test_right();
+    test_forward();
+    test_backward();
+    test_below();
+    test_above();
+    test_shifted();
+    test_corner_inside();
+    test_corner_inside_weird();
+    test_corner_inside_opposite_big();
+    test_corner_inside_opposite_weird();
+    return BLITZ_TEST_SUCCESSFUL;
+}

test/test_network.cpp

@@ -0,0 +1,46 @@
+#include "blitz/misc/Test.h"
+
+#include "blitz/network/TCPListener.h"
+#include "blitz/network/TCPSocket.h"
+#include "blitz/misc/Random.h"
+
+// Test the connection and disconnection of a TCPSocket
+void ConnectDisconnect() {
+	blitz::network::TCPListener localserver;
+	localserver.Listen(0, 1);
+	blitz::network::TCPSocket socket;
+	// Try to connect to a local server on port 8080
+	blitz_test_assert(socket.Connect("localhost", localserver.GetListeningPort()));
+	// Check if the socket status is Connected after connection
+	blitz_test_assert(socket.GetStatus() == blitz::network::TCPSocket::Status::Connected);
+	socket.Disconnect();
+	// Check if the socket status is Disconnected after disconnection
+	blitz_test_assert(socket.GetStatus() == blitz::network::TCPSocket::Status::Disconnected);
+}
+
+// Test the listening and accepting of a TCPListener
+void Listener() {
+	// Choose a random port
+	std::uint16_t randomPort = blitz::utils::GetRandomInt(30000, 35000);
+
+	blitz::network::TCPListener listener;
+	// Start listening on random port with a maximum of 10 connections
+	blitz_test_assert(listener.Listen(randomPort, 10));
+	// Check if the listener is listening on the correct port
+	blitz_test_assert(listener.GetListeningPort() == randomPort);
+	// Check if the listener has the correct maximum number of connections
+	blitz_test_assert(listener.GetMaximumConnections() == 10);
+
+	blitz::network::TCPSocket socket;
+	// Try to connect to the listener
+	blitz_test_assert(socket.Connect("localhost", randomPort));
+	blitz::network::TCPSocket newSocket;
+	// Try to accept the connection from the socket
+	blitz_test_assert(listener.Accept(newSocket));
+}
+
+int main(int argc, char** argv) {
+	ConnectDisconnect();
+	Listener();
+	return BLITZ_TEST_SUCCESSFUL;
+}

test/test_vector.cpp

@@ -1,6 +1,6 @@
 #include "blitz/misc/Test.h"
 
-#include "blitz/common/Vector.h"
+#include "blitz/maths/Vector.h"
 
 using namespace blitz;
 

xmake.lua

@@ -2,6 +2,12 @@ add_rules("mode.debug", "mode.release", "mode.valgrind")
 
 set_languages("c++17")
 
+if is_mode("release") then
+	set_warnings("all", "error")
+else
+	set_warnings("all")
+end
+
 includes("xmake/BlitzClient.lua")
 includes("xmake/BlitzServer.lua")
 includes("xmake/BlitzTest.lua")

xmake/BlitzClient.lua

@@ -1,7 +1,7 @@
 includes("Blitz.lua")
 
 add_requires("libsdl 2.28.3", {configs = {sdlmain = false}})
-add_requires("glbinding >= 3", "assimp", "nlohmann_json")
+add_requires("glew", "assimp", "nlohmann_json")
 
 -- Client binary (default)
 target("BlitzClient")
@@ -18,7 +18,7 @@ target("BlitzClient")
 
     -- Libraries
     add_deps("Blitz")
-    add_packages("libsdl", "glbinding", "assimp", "nlohmann_json")
+    add_packages("libsdl", "glew", "assimp", "nlohmann_json")
 
     add_includedirs("../libs", "../libs/imgui")
     add_files("../libs/imgui/**.cpp")