feat: bump version to alpha-0.0.3

include/game/Mobs.h

@@ -2,10 +2,13 @@
 
 #include "Towers.h"
 #include "Types.h"
+#include "Team.h"
 
 #include <vector>
 #include <memory>
 
+#include <glm/glm.hpp>
+
 namespace td {
 namespace game {
 
@@ -41,20 +44,22 @@ class MobStats {
 private:
     float m_Damage;
     float m_Speed;
+    glm::vec2 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, std::uint16_t moneyCost,
+    MobStats(float damage, float speed, glm::vec2 size, std::uint16_t moneyCost,
         std::uint16_t expCost, std::uint16_t expReward,
         std::uint16_t maxLife) : m_Damage(damage), m_Speed(speed),
-        m_MoneyCost(moneyCost), m_ExpCost(expCost), m_MaxLife(maxLife),
+        m_Size(size), m_MoneyCost(moneyCost), m_ExpCost(expCost),
-        m_ExpReward(expReward) {
+        m_MaxLife(maxLife), m_ExpReward(expReward) {
     }
 
     float getDamage() const { return m_Damage; }
     float getMovementSpeed() const { return m_Speed; }
+    const glm::vec2& 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; }
@@ -71,7 +76,7 @@ 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 {
+class Mob : public utils::shape::Rectangle {
 protected:
     float m_Health;
 private:
@@ -80,16 +85,17 @@ private:
     MobLevel m_Level;
     Direction m_Direction;
     std::vector<EffectDuration> m_Effects;
-    const Tower* m_LastDamage;   // the tower that damaged the mob
+    const Tower* m_LastDamage;   // the last tower that damaged the mob
+    bool m_HasReachedCastle; // if true, no need to walk anymore
 
     utils::Timer m_EffectFireTimer;
     utils::Timer m_EffectPoisonTimer;
     utils::Timer m_EffectHealTimer;
 
-    float m_X = 0, m_Y = 0;
 public:
     Mob(MobID id, MobLevel level, PlayerID sender) : m_Sender(sender), m_Level(level),
-        m_EffectFireTimer(1000), m_EffectPoisonTimer(1000), m_EffectHealTimer(1000) {
+        m_HasReachedCastle(false), m_EffectFireTimer(1000), m_EffectPoisonTimer(1000),
+        m_EffectHealTimer(1000) {
 
     }
 
@@ -97,7 +103,7 @@ public:
 
     virtual void tick(std::uint64_t delta);
 
-    virtual void OnDeath(World* world){}
+    virtual bool OnDeath(World* world) { return true; }
 
     const TowerImmunities& getTowerImmunities() const { return getMobTowerImmunities(getType(), m_Level); }
     const EffectImmunities& getEffectImmunities() const { return getMobEffectImmunities(getType(), m_Level); }
@@ -108,15 +114,11 @@ public:
     bool isDead() const { return m_Health <= 0; }
     bool isAlive() const { return m_Health > 0; }
     const Tower* getLastDamageTower() { return m_LastDamage; }
+    bool hasReachedEnemyCastle() { return m_HasReachedCastle; }
 
     void damage(float dmg, const Tower* damager) { m_Health = std::max(0.0f, m_Health - dmg); m_LastDamage = damager; }
-    void heal(float heal) { m_Health = std::min((float)getStats()->getMaxLife(), m_Health + heal); }
+    void heal(float heal) { m_Health = std::min(static_cast<float>(getStats()->getMaxLife()), m_Health + heal); }
-
+    void setMobReachedCastle() { m_HasReachedCastle = true; } // used when mob is in front of the castle
-    float getX() const { return m_X; }
-    void setX(float x) { m_X = x; }
-
-    float getY() const { return m_Y; }
-    void setY(float y) { m_Y = y; }
 
     bool isImmuneTo(TowerType type);
 
@@ -124,11 +126,16 @@ public:
     void addEffect(EffectType type, float durationSec, const Tower* tower);
     bool hasEffect(EffectType type);
 
+    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 initHealth() { m_Health = (float)getStats()->getMaxLife(); }
+    void initMob() {
+        m_Health = static_cast<float>(getStats()->getMaxLife());
+        setSize(getStats()->getSize().x, getStats()->getSize().y);
+    }
 private:
     void updateEffects(std::uint64_t delta);
     EffectDuration& getEffect(EffectType type);
@@ -138,70 +145,70 @@ typedef std::shared_ptr<Mob> MobPtr;
 
 class Zombie : public Mob {
 public:
-    Zombie(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    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) { initHealth(); }
+    Giant(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { initMob(); }
 
     virtual MobType getType() const { return MobType::Giant; }
 };

include/game/Team.h

@@ -2,9 +2,11 @@
 
 #include "Types.h"
 
+#include "misc/Shapes.h"
+
 #include <vector>
 #include <memory>
-#include <algorithm>
+#include <cmath>
 
 namespace td {
 namespace game {
@@ -17,14 +19,33 @@ enum class TeamColor : std::int8_t {
     Blue
 };
 
-struct Spawn {
+class Spawn : public utils::shape::Rectangle {
-    Direction direction;
+private:
-    std::int32_t x, y;
+    Direction m_Direction;
+public:
+    Spawn(){
+        setWidth(5);
+        setHeight(5);
+    }
+
+    Direction getDirection() const { return m_Direction; }
+
+    void setDirection(Direction direction) { m_Direction = direction; }
 };
 
-struct TeamCastle {
+struct TeamCastle : public utils::shape::Rectangle{
-    std::int32_t x, y;
+private:
-    std::uint16_t life = 1000;
+    float m_Life;
+public:
+    TeamCastle() : m_Life(1000) {
+        setWidth(5);
+        setHeight(5);
+    }
+
+    float getLife() const { return m_Life; }
+
+    void setLife(float life) { m_Life = life; }
+    void damage(float damage) { m_Life = std::max(0.0f, m_Life - damage); }
 };
 
 class Team {

include/game/Towers.h

@@ -5,6 +5,8 @@
 #include <memory>
 
 #include "misc/Time.h"
+#include "misc/Shapes.h"
+
 #include "game/Types.h"
 
 namespace td {
@@ -85,19 +87,18 @@ const TowerStats* getTowerStats(TowerType type, TowerLevel level);
 
 typedef std::uint16_t TowerID;
 
-class Tower {
+class Tower : public utils::shape::Circle {
 private:
     TowerID m_ID;
     TowerType m_Type;
-    std::int32_t m_X, m_Y;
     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) : m_ID(id), m_Type(type), m_X(x), m_Y(y), m_Builder(builder),
+    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;
@@ -109,11 +110,10 @@ public:
         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; }
-    std::int32_t getX() const { return m_X; }
-    std::int32_t getY() const { return m_Y; }
     const TowerLevel& getLevel() const { return m_Level; }
     const TowerStats* getStats() const { return getTowerStats(m_Type, m_Level); }
     PlayerID getBuilder() const { return m_Builder; }
@@ -163,6 +163,8 @@ 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;
+
     virtual TowerType getType() const { return TowerType::Archer; }
     virtual void tick(std::uint64_t delta, World* world);
 };

include/game/World.h

@@ -10,6 +10,8 @@
 #include "Mobs.h"
 #include "Team.h"
 
+#include "misc/ObjectNotifier.h"
+
 namespace td {
 namespace game {
 typedef std::pair<std::int16_t, std::int16_t> ChunkCoord;
@@ -114,7 +116,23 @@ typedef std::array<Color, 2> SpawnColorPalette;
 
 typedef std::vector<TowerPtr> TowerList;
 
-class World {
+class WorldListener {
+public:
+    WorldListener(){}
+
+    virtual void OnArcherTowerShot(MobPtr target, ArcherTower* shooter){}
+
+    virtual void OnArrowShot(MobPtr target, Tower* shooter){}
+    virtual void OnExplosion(utils::shape::Circle explosion, float centerDamage, Tower* shooter){}
+
+    virtual void OnMobDamage(MobPtr target, float damage, Tower* damager){}
+
+    virtual void OnMobDead(MobPtr mob){}
+};
+
+typedef utils::ObjectNotifier<WorldListener> WorldNotifier;
+
+class World : public WorldNotifier, public WorldListener{
 protected:
     TowerTileColorPalette m_TowerPlacePalette;
     Color m_WalkablePalette;
@@ -134,6 +152,8 @@ protected:
 public:
     World(Game* game);
 
+    static constexpr std::uint8_t CastleWidth = 5, CastleHeight = 5;
+
     bool loadMap(const protocol::WorldBeginDataPacket* worldHeader);
     bool loadMap(const protocol::WorldDataPacket* worldData);
 
@@ -187,10 +207,20 @@ public:
     const TowerList& getTowers() const { return m_Towers; };
     TowerPtr getTowerById(TowerID tower);
 
-    // Archer Tower
+    // WorldListener
+
+    virtual void OnArcherTowerShot(MobPtr target, ArcherTower* shooter);
+
     virtual void OnArrowShot(MobPtr target, Tower* shooter);
+    virtual void OnExplosion(utils::shape::Circle explosion, float centerDamage, Tower* shooter);
+
+    virtual void OnMobDamage(MobPtr target, float damage, Tower* source);
 private:
     void moveMobs(std::uint64_t delta);
+    void moveMob(MobPtr mob, std::uint64_t delta);
+    void moveBackMob(MobPtr mob, const TeamCastle& castle);
+    void changeMobDirection(MobPtr mob, WalkableTilePtr tile);
+    bool isMobTouchingCastle(MobPtr mob, const TeamCastle& castle) const;
     void tickMobs(std::uint64_t delta);
     void cleanDeadMobs();
 };

include/misc/Compression.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include <cstdint>
-#include "misc/DataBuffer.h"
+#include "DataBuffer.h"
 
 namespace td {
 namespace utils {

include/misc/ObjectNotifier.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <algorithm>
+#include <functional>
+#include <vector>
+
+namespace td {
+namespace utils {
+
+template <typename Listener>
+class ObjectNotifier {
+protected:
+    std::vector<Listener*> m_Listeners;
+
+public:
+    void bindListener(Listener* listener) {
+        m_Listeners.push_back(listener);
+    }
+
+    void unbindListener(Listener* listener) {
+        auto iter = std::find(m_Listeners.begin(), m_Listeners.end(), listener);
+
+        if(iter == m_Listeners.end()) return;
+
+        m_Listeners.erase(iter);
+    }
+
+    template <typename Func, typename... Args>
+    void notifyListeners(Func function, Args... args) {
+        for (Listener* listener : m_Listeners)
+            std::bind(function, listener, args...)();
+    }
+};
+
+} // namespace utils
+} // namespace td

include/misc/Shapes.h

@@ -0,0 +1,93 @@
+#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 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/misc/Time.h

@@ -39,7 +39,7 @@ public:
 // utililty class to call function at regular period of time
 class Timer {
 private:
-    std::uint64_t m_Interval;
+    std::uint64_t m_Interval; // in millis
     std::uint64_t m_InternalTime = 0;
 public:
     Timer() : m_Interval(0) {}
@@ -56,7 +56,7 @@ public:
 // utililty class to call function at regular period of time with a cooldown (used for towers)
 class CooldownTimer {
 private:
-    std::uint64_t m_Cooldown;
+    std::uint64_t m_Cooldown; // in millis
     std::uint64_t m_CooldownTime;
 public:
     CooldownTimer() : m_Cooldown(0), m_CooldownTime(0) {}

include/render/gui/TowerPlacePopup.h

@@ -17,11 +17,11 @@ public:
 
     void setClickPos(const glm::vec2& worldPos);
 private:
-    static constexpr float m_TowerPopupTileWidth = 250.0f;
+    static constexpr float m_TowerPopupTileWidth = 200.0f;
-    static constexpr float m_TowerPopupTileHeight = 250.0f;
+    static constexpr float m_TowerPopupTileHeight = 200.0f;
 
-    static constexpr float m_PlaceTowerButtonWidth = 200.0f;
+    static constexpr float m_PlaceTowerButtonWidth = 150.0f;
-    static constexpr float m_PlaceTowerButtonHeight = 45.0f;
+    static constexpr float m_PlaceTowerButtonHeight = 35.0f;
 };
 
 } // namespace gui

include/render/gui/UpdateMenu.h

@@ -2,7 +2,7 @@
 
 #include "GuiWidget.h"
 
-#include "misc/Updater.h"
+#include "updater/Updater.h"
 
 #include <future>
 

include/updater/Updater.h

@@ -4,7 +4,7 @@
 
 #include <ctime>
 
-#define TD_VERSION "alpha-0.0.1"
+#define TD_VERSION "alpha-0.0.3"
 
 namespace td {
 namespace utils {

src/TowerDefense.cpp

@@ -7,7 +7,7 @@
 //============================================================================
 
 #include "window/Display.h"
-#include "misc/Updater.h"
+#include "updater/Updater.h"
 
 #ifdef __ANDROID__
 extern "C"

src/game/Mobs.cpp

@@ -88,66 +88,66 @@ bool Mob::hasEffect(EffectType type) {
 typedef std::pair<MobType, std::uint8_t> MobKey;
 
 const std::map<MobKey, MobStats> MobConstants = {
-    // damage  speed  money_cost  exp_cost  exp_reward  max_health
+    // damage  speed  size  money_cost  exp_cost  exp_reward  max_health
-    {{MobType::Zombie, 1},{MobStats{1, 1.6, 15, 0, 7, 40}}},
+    {{MobType::Zombie, 1},{MobStats{1, 1.6, {1, 1}, 15, 0, 7, 40}}},
-    {{MobType::Zombie, 2},{MobStats{1, 1.6, 18, 88, 9, 56}}},
+    {{MobType::Zombie, 2},{MobStats{1, 1.6, {1, 1}, 18, 88, 9, 56}}},
-    {{MobType::Zombie, 3},{MobStats{1, 1.6, 22, 153, 10, 78}}},
+    {{MobType::Zombie, 3},{MobStats{1, 1.6, {1, 1}, 22, 153, 10, 78}}},
-    {{MobType::Zombie, 4},{MobStats{1.5, 1.6, 26, 268, 13, 110}}},
+    {{MobType::Zombie, 4},{MobStats{1.5, 1.6, {1, 1}, 26, 268, 13, 110}}},
-    {{MobType::Zombie, 5},{MobStats{2, 1.6, 31, 469, 15, 154}}},
+    {{MobType::Zombie, 5},{MobStats{2, 1.6, {1, 1}, 31, 469, 15, 154}}},
 
-    {{MobType::Spider, 1},{MobStats{1, 1.6, 25, 100, 15, 80}}},
+    {{MobType::Spider, 1},{MobStats{1, 1.6, {1, 1}, 25, 100, 15, 80}}},
-    {{MobType::Spider, 2},{MobStats{1, 2, 30, 175, 16, 112}}},
+    {{MobType::Spider, 2},{MobStats{1, 2, {1, 1}, 30, 175, 16, 112}}},
-    {{MobType::Spider, 3},{MobStats{1.5, 2, 36, 306, 18, 157}}},
+    {{MobType::Spider, 3},{MobStats{1.5, 2, {1, 1}, 36, 306, 18, 157}}},
-    {{MobType::Spider, 4},{MobStats{2.5, 2, 43, 536, 19, 222}}},
+    {{MobType::Spider, 4},{MobStats{2.5, 2, {1, 1}, 43, 536, 19, 222}}},
-    {{MobType::Spider, 5},{MobStats{1.5, 2.5, 52, 938, 22, 307}}},
+    {{MobType::Spider, 5},{MobStats{1.5, 2.5, {1, 1}, 52, 938, 22, 307}}},
 
-    {{MobType::Skeleton, 1},{MobStats{1, 1.6, 120, 200, 30, 350}}},
+    {{MobType::Skeleton, 1},{MobStats{1, 1.6, {1, 1}, 120, 200, 30, 350}}},
-    {{MobType::Skeleton, 2},{MobStats{1, 1.6, 144, 350, 33, 490}}},
+    {{MobType::Skeleton, 2},{MobStats{1, 1.6, {1, 1}, 144, 350, 33, 490}}},
-    {{MobType::Skeleton, 3},{MobStats{1, 1.6, 173, 613, 36, 686}}},
+    {{MobType::Skeleton, 3},{MobStats{1, 1.6, {1, 1}, 173, 613, 36, 686}}},
-    {{MobType::Skeleton, 4},{MobStats{1.5, 1.6, 225, 1072, 40, 960}}},
+    {{MobType::Skeleton, 4},{MobStats{1.5, 1.6, {1, 1}, 225, 1072, 40, 960}}},
-    {{MobType::Skeleton, 5},{MobStats{2, 1.6, 255, 1876, 43, 1345}}},
+    {{MobType::Skeleton, 5},{MobStats{2, 1.6, {1, 1}, 255, 1876, 43, 1345}}},
 
-    {{MobType::Pigman, 1},{MobStats{1, 2, 100, 150, 22, 150}}},
+    {{MobType::Pigman, 1},{MobStats{1, 2, {1, 1}, 100, 150, 22, 150}}},
-    {{MobType::Pigman, 2},{MobStats{1, 2, 120, 263, 24, 210}}},
+    {{MobType::Pigman, 2},{MobStats{1, 2, {1, 1}, 120, 263, 24, 210}}},
-    {{MobType::Pigman, 3},{MobStats{1, 2, 144, 459, 25, 297}}},
+    {{MobType::Pigman, 3},{MobStats{1, 2, {1, 1}, 144, 459, 25, 297}}},
-    {{MobType::Pigman, 4},{MobStats{1, 2, 173, 804, 25, 412}}},
+    {{MobType::Pigman, 4},{MobStats{1, 2, {1, 1}, 173, 804, 25, 412}}},
-    {{MobType::Pigman, 5},{MobStats{1.5, 2, 207, 1407, 27, 576}}},
+    {{MobType::Pigman, 5},{MobStats{1.5, 2, {1, 1}, 207, 1407, 27, 576}}},
 
-    {{MobType::Creeper, 1},{MobStats{1, 2, 250, 325, 46, 350}}},
+    {{MobType::Creeper, 1},{MobStats{1, 2, {1, 1}, 250, 325, 46, 350}}},
-    {{MobType::Creeper, 2},{MobStats{1, 2, 290, 550, 49, 460}}},
+    {{MobType::Creeper, 2},{MobStats{1, 2, {1, 1}, 290, 550, 49, 460}}},
-    {{MobType::Creeper, 3},{MobStats{2, 2, 350, 800, 55, 630}}},
+    {{MobType::Creeper, 3},{MobStats{2, 2, {1, 1}, 350, 800, 55, 630}}},
-    {{MobType::Creeper, 4},{MobStats{3, 2, 420, 1300, 61, 900}}},
+    {{MobType::Creeper, 4},{MobStats{3, 2, {1, 1}, 420, 1300, 61, 900}}},
-    {{MobType::Creeper, 5},{MobStats{4, 2, 510, 1850, 67, 1250}}},
+    {{MobType::Creeper, 5},{MobStats{4, 2, {1, 1}, 510, 1850, 67, 1250}}},
 
-    {{MobType::Silverfish, 1},{MobStats{1, 1.6, 38, 125, 18, 120}}},
+    {{MobType::Silverfish, 1},{MobStats{1, 1.6, {1, 1}, 38, 125, 18, 120}}},
-    {{MobType::Silverfish, 2},{MobStats{1, 1.6, 50, 230, 19, 170}}},
+    {{MobType::Silverfish, 2},{MobStats{1, 1.6, {1, 1}, 50, 230, 19, 170}}},
-    {{MobType::Silverfish, 3},{MobStats{1, 1.6, 75, 340, 25, 225}}},
+    {{MobType::Silverfish, 3},{MobStats{1, 1.6, {1, 1}, 75, 340, 25, 225}}},
-    {{MobType::Silverfish, 4},{MobStats{1.5, 1.6, 170, 700, 33, 310}}},
+    {{MobType::Silverfish, 4},{MobStats{1.5, 1.6, {1, 1}, 170, 700, 33, 310}}},
-    {{MobType::Silverfish, 5},{MobStats{1.5, 1.6, 200, 1800, 36, 390}}},
+    {{MobType::Silverfish, 5},{MobStats{1.5, 1.6, {1, 1}, 200, 1800, 36, 390}}},
 
-    {{MobType::Blaze, 1},{MobStats{1, 1.6, 500, 500, 105, 410}}},
+    {{MobType::Blaze, 1},{MobStats{1, 1.6, {1, 1}, 500, 500, 105, 410}}},
-    {{MobType::Blaze, 2},{MobStats{1, 1.6, 600, 875, 111, 574}}},
+    {{MobType::Blaze, 2},{MobStats{1, 1.6, {1, 1}, 600, 875, 111, 574}}},
-    {{MobType::Blaze, 3},{MobStats{1, 1.6, 720, 1531, 115, 804}}},
+    {{MobType::Blaze, 3},{MobStats{1, 1.6, {1, 1}, 720, 1531, 115, 804}}},
-    {{MobType::Blaze, 4},{MobStats{1.5, 1.6, 864, 2680, 121, 1125}}},
+    {{MobType::Blaze, 4},{MobStats{1.5, 1.6, {1, 1}, 864, 2680, 121, 1125}}},
-    {{MobType::Blaze, 5},{MobStats{2, 1.6, 1037, 4689, 127, 1575}}},
+    {{MobType::Blaze, 5},{MobStats{2, 1.6, {1, 1}, 1037, 4689, 127, 1575}}},
 
-    {{MobType::Witch, 1},{MobStats{1, 1.6, 150, 300, 37, 300}}},
+    {{MobType::Witch, 1},{MobStats{1, 1.6, {1, 1}, 150, 300, 37, 300}}},
-    {{MobType::Witch, 2},{MobStats{1, 1.6, 165, 525, 39, 405}}},
+    {{MobType::Witch, 2},{MobStats{1, 1.6, {1, 1}, 165, 525, 39, 405}}},
-    {{MobType::Witch, 3},{MobStats{1, 1.6, 182, 918, 42, 547}}},
+    {{MobType::Witch, 3},{MobStats{1, 1.6, {1, 1}, 182, 918, 42, 547}}},
-    {{MobType::Witch, 4},{MobStats{1.5, 1.6, 200, 1606, 43, 738}}},
+    {{MobType::Witch, 4},{MobStats{1.5, 1.6, {1, 1}, 200, 1606, 43, 738}}},
-    {{MobType::Witch, 5},{MobStats{2, 1.6, 220, 2810, 45, 996}}},
+    {{MobType::Witch, 5},{MobStats{2, 1.6, {1, 1}, 220, 2810, 45, 996}}},
 
-    {{MobType::Slime, 1},{MobStats{1, 0.8, 1500, 1000, 300, 800}}},
+    {{MobType::Slime, 1},{MobStats{1, 0.8, {1, 1}, 1500, 1000, 300, 800}}},
-    {{MobType::Slime, 2},{MobStats{1.5, 0.8, 1800, 1750, 314, 880}}},
+    {{MobType::Slime, 2},{MobStats{1.5, 0.8, {1, 1}, 1800, 1750, 314, 880}}},
-    {{MobType::Slime, 3},{MobStats{2, 0.8, 2160, 3063, 330, 968}}},
+    {{MobType::Slime, 3},{MobStats{2, 0.8, {1, 1}, 2160, 3063, 330, 968}}},
-    {{MobType::Slime, 4},{MobStats{2.5, 0.8, 2592, 5359, 348, 1065}}},
+    {{MobType::Slime, 4},{MobStats{2.5, 0.8, {1, 1}, 2592, 5359, 348, 1065}}},
-    {{MobType::Slime, 5},{MobStats{3, 0.8, 3110, 9379, 366, 1171}}},
+    {{MobType::Slime, 5},{MobStats{3, 0.8, {1, 1}, 3110, 9379, 366, 1171}}},
 
-    {{MobType::Giant, 1},{MobStats{10, 0.8, 4000, 2250, 600, 6250}}},
+    {{MobType::Giant, 1},{MobStats{10, 0.8, {1, 1}, 4000, 2250, 600, 6250}}},
-    {{MobType::Giant, 2},{MobStats{20, 0.8, 4500, 4000, 612, 9375}}},
+    {{MobType::Giant, 2},{MobStats{20, 0.8, {1, 1}, 4500, 4000, 612, 9375}}},
-    {{MobType::Giant, 3},{MobStats{30, 0.8, 5062, 7250, 624, 14062}}},
+    {{MobType::Giant, 3},{MobStats{30, 0.8, {1, 1}, 5062, 7250, 624, 14062}}},
-    {{MobType::Giant, 4},{MobStats{40, 0.8, 5695, 12500, 636, 21093}}},
+    {{MobType::Giant, 4},{MobStats{40, 0.8, {1, 1}, 5695, 12500, 636, 21093}}},
-    {{MobType::Giant, 5},{MobStats{50, 0.8, 6407, 22000, 648, 31640}}},
+    {{MobType::Giant, 5},{MobStats{50, 0.8, {1, 1}, 6407, 22000, 648, 31640}}},
 };
 
 const MobStats* getMobStats(MobType type, std::uint8_t level) {
@@ -235,7 +235,7 @@ const std::map<MobKey, EffectImmunities> MobsEffectImmunities = {
 
     {{MobType::Skeleton, 1},{}},
     {{MobType::Skeleton, 2},{}},
-    {{MobType::Skeleton, 3},{EffectType::Fire}},
+    {{MobType::Skeleton, 3},{}},
     {{MobType::Skeleton, 4},{EffectType::Fire}},
     {{MobType::Skeleton, 5},{EffectType::Fire}},
 

src/game/Team.cpp

@@ -1,5 +1,7 @@
 #include "game/Player.h"
 
+#include <algorithm>
+
 namespace td {
 namespace game {
 

src/game/Towers.cpp

@@ -9,7 +9,7 @@ namespace game {
 bool Tower::isMobInRange(MobPtr mob) {
     if (mob->isDead())
         return false;
-    return (m_X - mob->getX()) * (m_X - mob->getX()) + (m_Y - mob->getY()) * (m_Y - mob->getY()) < (getStats()->getRange() * getStats()->getRange());
+    return mob->collidesWith(*this);
 }
 
 const std::map<std::pair<TowerType, TowerLevel>, TowerStats> TowerConstants = {
@@ -21,8 +21,8 @@ const std::map<std::pair<TowerType, TowerLevel>, TowerStats> TowerConstants = {
     {{TowerType::Archer, {4, TowerPath::Top}}, {0.8, 0, 15}},
 
     {{TowerType::Archer, {2, TowerPath::Bottom}}, {2, 10, 12}},
-    {{TowerType::Archer, {3, TowerPath::Bottom}}, {2, 0, 13}},
+    {{TowerType::Archer, {3, TowerPath::Bottom}}, {2, 10, 13}},
-    {{TowerType::Archer, {4, TowerPath::Bottom}}, {2, 0, 15}},
+    {{TowerType::Archer, {4, TowerPath::Bottom}}, {2, 10, 15}},
 
     //-----------------------------------------------------------------
 
@@ -213,11 +213,11 @@ void ArcherTower::tick(std::uint64_t delta, World* world) {
         std::uint8_t arrows = explosiveArrows ? 2 : getLevel().getLevel();
         for (MobPtr mob : world->getMobList()) {
             if (isMobInRange(mob)) {
-                world->OnArrowShot(mob, this);
+                world->notifyListeners(&WorldListener::OnArcherTowerShot, mob, this);
+                m_Timer.applyCooldown();
                 arrowsShot++;
                 if (arrowsShot >= arrows)
                     break;
-                m_Timer.applyCooldown();
             }
         }
     }
@@ -229,7 +229,8 @@ void IceTower::tick(std::uint64_t delta, World* world) {
         for (MobPtr mob : world->getMobList()) {
             if (isMobInRange(mob)) {
                 mob->addEffect(EffectType::Slowness, 1, this);    // slowness for 1s every second
-                mob->damage(damage, this);
+                if(damage > 0)
+                    world->notifyListeners(&WorldListener::OnMobDamage, mob, damage, this);
                 m_Timer.applyCooldown();
             }
         }
@@ -252,7 +253,7 @@ void PoisonTower::tick(std::uint64_t delta, World* world) {
         for (MobPtr mob : world->getMobList()) {
             if (isMobInRange(mob)) {
                 if (getLevel().getPath() == TowerPath::Bottom) {
-                    mob->damage(getStats()->getDamage(), this);
+                    world->notifyListeners(&WorldListener::OnMobDamage, mob, getStats()->getDamage(), this);
                 } else {
                     float durationSec;
                     switch (getLevel().getLevel()) {

src/game/World.cpp

@@ -13,15 +13,15 @@ namespace td {
 namespace game {
 
 World::World(Game* game) : m_Game(game) {
-
+    bindListener(this);
 }
 
 TilePtr World::getTile(std::int32_t x, std::int32_t y) const {
     std::int16_t chunkX = x / Chunk::ChunkWidth;
     std::int16_t chunkY = y / Chunk::ChunkHeight;
 
-    std::uint16_t subChunkX = x % Chunk::ChunkWidth;
+    std::uint16_t subChunkX = std::abs(x % Chunk::ChunkWidth);
-    std::uint16_t subChunkY = y % Chunk::ChunkHeight;
+    std::uint16_t subChunkY = std::abs(y % Chunk::ChunkHeight);
 
     auto chunkIt = m_Chunks.find({ chunkX, chunkY });
     if (chunkIt == m_Chunks.end())
@@ -111,8 +111,7 @@ void World::tick(std::uint64_t delta) {
 
 void World::spawnMobAt(MobID id, MobType type, std::uint8_t level, PlayerID sender, float x, float y, Direction dir) {
     MobPtr mob = MobFactory::createMob(id, type, level, sender);
-    mob->setX(x);
+    mob->setCenter({ x, y });
-    mob->setY(y);
     mob->setDirection(dir);
     m_Mobs.push_back(mob);
 }
@@ -129,41 +128,158 @@ void World::tickMobs(std::uint64_t delta) {
     }
 }
 
-void World::moveMobs(std::uint64_t delta) {
+void World::changeMobDirection(MobPtr mob, WalkableTilePtr tile) {
-    for (MobPtr mob : m_Mobs) {
+    if (mob->getDirection() == tile->direction) return;
-        TilePtr tile = getTile(mob->getX(), mob->getY());
 
-        if (tile != nullptr && tile->getType() == TileType::Walk) {
+    float tileX = static_cast<float>(static_cast<std::int32_t>(mob->getCenterX()));
-            WalkableTile* walkTile = dynamic_cast<WalkableTile*>(tile.get());
+    float tileY = static_cast<float>(static_cast<std::int32_t>(mob->getCenterY()));
-            mob->setDirection(walkTile->direction);
+
+    switch (mob->getDirection()) {
+
+    case Direction::PositiveY: {
+        if (tile->direction == Direction::NegativeX) {
+            if (mob->getTileY() > mob->getTileX()) {
+                mob->setCenterY(tileY + mob->getTileX());
+                mob->setDirection(tile->direction);
+            }
+        } else { // tile->direction = Direction::PositiveX
+            if (mob->getTileY() > 1 - mob->getTileX()) {
+                mob->setCenterY(tileY + (1 - mob->getTileX()));
+                mob->setDirection(tile->direction);
+            }
+        }
+        return;
     }
 
+    case Direction::NegativeY: {
+        if (tile->direction == Direction::PositiveX) {
+            if (mob->getTileY() < mob->getTileX()) {
+                mob->setCenterY(tileY + mob->getTileX());
+                mob->setDirection(tile->direction);
+            }
+        } else { // tile->direction = Direction::NegativeX
+            if (mob->getTileY() < 1 - mob->getTileX()) {
+                mob->setCenterY(tileY + (1 - mob->getTileX()));
+                mob->setDirection(tile->direction);
+            }
+        }
+        return;
+    }
+
+    case Direction::PositiveX: {
+        if (tile->direction == Direction::NegativeY) {
+            if (mob->getTileX() > mob->getTileY()) {
+                mob->setCenterX(tileX + mob->getTileY());
+                mob->setDirection(tile->direction);
+            }
+        } else { // tile->direction = Direction::PositiveY
+            if (mob->getTileX() > 1 - mob->getTileY()) {
+                mob->setCenterX(tileX + (1 - mob->getTileY()));
+                mob->setDirection(tile->direction);
+            }
+        }
+        return;
+    }
+
+    case Direction::NegativeX: {
+        if (tile->direction == Direction::PositiveY) {
+            if (mob->getTileX() < mob->getTileY()) {
+                mob->setCenterX(tileX + mob->getTileY());
+                mob->setDirection(tile->direction);
+            }
+        } else { // tile->direction = Direction::NegativeY
+            if (mob->getTileX() < 1 - mob->getTileY()) {
+                mob->setCenterX(tileX + (1 - mob->getTileY()));
+                mob->setDirection(tile->direction);
+            }
+        }
+        return;
+    }
+
+    }
+}
+
+void World::moveMobs(std::uint64_t delta) {
+    for (MobPtr mob : m_Mobs) {
+        TilePtr tile = getTile(mob->getCenter().getX(), mob->getCenter().getY());
+
+        if (tile != nullptr && tile->getType() == TileType::Walk) {
+            WalkableTilePtr walkTile = std::static_pointer_cast<WalkableTile>(tile);
+            changeMobDirection(mob, walkTile);
+        }
+
+        if (mob->hasReachedEnemyCastle()) continue;
+
+        moveMob(mob, delta);
+
+        TeamColor mobTeam = m_Game->getPlayerById(mob->getSender()).getTeamColor();
+
+        const TeamCastle* enemyCastle = nullptr;
+
+        if (mobTeam == TeamColor::Red) {
+            enemyCastle = &getBlueTeam().getCastle();
+        } else if (mobTeam == TeamColor::Blue) {
+            enemyCastle = &getRedTeam().getCastle();
+        }
+
+        if (isMobTouchingCastle(mob, *enemyCastle)) {
+            moveBackMob(mob, *enemyCastle);
+            mob->setMobReachedCastle();
+        }
+    }
+}
+
+void World::moveMob(MobPtr mob, std::uint64_t delta) {
     float mobWalkSpeed = mob->getStats()->getMovementSpeed();
 
     float walkAmount = mobWalkSpeed * ((float)delta / 1000.0f);
 
     if (mob->hasEffect(EffectType::Slowness))
-            walkAmount *= 0.70;
+        walkAmount *= 0.70; // walk 30% slower
 
     switch (mob->getDirection()) {
     case Direction::NegativeX: {
-            mob->setX(mob->getX() - walkAmount);
+        mob->setCenterX(mob->getCenterX() - walkAmount);
         break;
     }
     case Direction::PositiveX: {
-            mob->setX(mob->getX() + walkAmount);
+        mob->setCenterX(mob->getCenterX() + walkAmount);
         break;
     }
     case Direction::NegativeY: {
-            mob->setY(mob->getY() - walkAmount);
+        mob->setCenterY(mob->getCenterY() - walkAmount);
         break;
     }
     case Direction::PositiveY: {
-            mob->setY(mob->getY() + walkAmount);
+        mob->setCenterY(mob->getCenterY() + walkAmount);
         break;
     }
     }
 }
+
+bool World::isMobTouchingCastle(MobPtr mob, const TeamCastle& enemyCastle) const {
+    return enemyCastle.collidesWith(*mob);
+}
+
+void World::moveBackMob(MobPtr mob, const TeamCastle& enemyCastle) {
+    switch (mob->getDirection()) {
+    case Direction::NegativeX: {
+        mob->setCenterX(enemyCastle.getBottomRight().getX() + mob->getWidth() / 2.0f);
+        break;
+    }
+    case Direction::PositiveX: {
+        mob->setCenterX(enemyCastle.getTopLeft().getX() - mob->getWidth() / 2.0f);
+        break;
+    }
+    case Direction::NegativeY: {
+        mob->setCenterY(enemyCastle.getBottomRight().getY() + mob->getHeight() / 2.0f);
+        break;
+    }
+    case Direction::PositiveY: {
+        mob->setCenterY(enemyCastle.getTopLeft().getY() - mob->getHeight() / 2.0f);
+        break;
+    }
+    }
 }
 
 const Color* World::getTileColor(TilePtr tile) const {
@@ -245,8 +361,7 @@ void World::cleanDeadMobs() {
     for (std::size_t i = 0; i < m_Mobs.size(); i++) {
         MobPtr mob = m_Mobs[i];
         if (mob->isDead()) {
-            mob->OnDeath(this);
+            if (mob->OnDeath(this)) {
-
                 //reward players
                 Player& sender = m_Game->getPlayerById(mob->getSender());
                 sender.addExp(mob->getStats()->getExpReward());
@@ -258,17 +373,18 @@ void World::cleanDeadMobs() {
             }
         }
     }
+}
 
 TowerPtr World::getTower(const glm::vec2& position) const {
     for (TowerPtr tower : m_Towers) {
         if (tower->getSize() == TowerSize::Big) {
-            if (tower->getX() - 2 <= static_cast<std::int32_t>(position.x) && tower->getX() + 2 >= static_cast<std::int32_t>(position.x) &&
+            if (tower->getCenterX() - 2.5f < position.x && tower->getCenterX() + 2.5f > position.x &&
-                tower->getY() - 2 <= static_cast<std::int32_t>(position.y) && tower->getY() + 2 >= static_cast<std::int32_t>(position.y)) {
+                tower->getCenterY() - 2.5f < position.y && tower->getCenterY() + 2.5f > position.y) {
                 return tower;
             }
-        } else {
+        } else { // little tower
-            if (tower->getX() - 1 <= static_cast<std::int32_t>(position.x) && tower->getX() + 1 >= static_cast<std::int32_t>(position.x) &&
+            if (tower->getCenterX() - 1.5f < position.x && tower->getCenterX() + 1.5f > position.x &&
-                tower->getY() - 1 <= static_cast<std::int32_t>(position.y) && tower->getY() + 1 >= static_cast<std::int32_t>(position.y)) {
+                tower->getCenterY() - 1.5f < position.y && tower->getCenterY() + 1.5f > position.y) {
                 return tower;
             }
         }
@@ -282,12 +398,32 @@ TowerPtr World::getTowerById(TowerID towerID) {
     return *it;
 }
 
-void World::OnArrowShot(MobPtr target, Tower* shooter) {
+void World::OnArcherTowerShot(MobPtr target, ArcherTower* shooter) {
     bool explosiveArrows = shooter->getLevel().getPath() == TowerPath::Bottom;
+    notifyListeners(&WorldListener::OnArrowShot, target, shooter);
     if (explosiveArrows) {
-        // aoe damage
+        notifyListeners(&WorldListener::OnExplosion, utils::shape::Circle{ target->getCenterX(), target->getCenterY(), ArcherTower::ExplosionRadius }, shooter->getStats()->getDamage(), shooter);
-    } else {
+    }
-        target->damage(shooter->getStats()->getDamage(), shooter);
+}
+
+void World::OnArrowShot(MobPtr target, Tower* shooter) {
+    notifyListeners(&WorldListener::OnMobDamage, target, shooter->getStats()->getDamage(), shooter);
+}
+
+void World::OnExplosion(utils::shape::Circle explosion, float centerDamage, Tower* shooter) {
+    for (MobPtr mob : m_Mobs) {
+        if (mob->isAlive() && mob->collidesWith(explosion)) {
+            // linear distance damage reduction
+            float explosionDamage = mob->distance(explosion) / explosion.getRadius() * centerDamage;
+            notifyListeners(&WorldListener::OnMobDamage, mob, explosionDamage, shooter);
+        }
+    }
+}
+
+void World::OnMobDamage(MobPtr target, float damage, Tower* source) {
+    target->damage(damage, source);
+    if (target->isDead()) {
+        notifyListeners(&WorldListener::OnMobDead, target);
     }
 }
 

src/game/client/ClientGame.cpp

@@ -103,7 +103,7 @@ void ClientGame::HandlePacket(const protocol::WorldDataPacket* packet) {
     m_WorldRenderer.loadModels();
     // set cam pos to player spawn
     const game::Spawn& spawn = m_World->getTeam(m_Player->getTeamColor()).getSpawn();
-    m_WorldRenderer.setCamPos(spawn.x + 0.5, spawn.y + 0.5);
+    m_WorldRenderer.setCamPos(spawn.getCenterX(), spawn.getCenterY());
 }
 
 void ClientGame::renderWorld() {

src/game/server/ServerWorld.cpp

@@ -22,8 +22,8 @@ void ServerWorld::spawnMobs(game::MobType type, std::uint8_t level, game::Player
             enemyMobSpawn = &getTeam(game::TeamColor::Red).getSpawn();
         }
 
-        std::int32_t spawnCenterX = enemyMobSpawn->x;
+        std::int32_t spawnCenterX = enemyMobSpawn->getCenterX();
-        std::int32_t spawnCenterY = enemyMobSpawn->y;
+        std::int32_t spawnCenterY = enemyMobSpawn->getCenterY();
 
         std::int32_t minSpawnY = spawnCenterY - 2;
         std::int32_t maxSpawnY = spawnCenterY + 2;
@@ -34,9 +34,9 @@ void ServerWorld::spawnMobs(game::MobType type, std::uint8_t level, game::Player
         float mobX = utils::getRandomReal<float>(minSpawnX, maxSpawnX);
         float mobY = utils::getRandomReal<float>(minSpawnY, maxSpawnY);
 
-        spawnMobAt(m_CurrentMobID, type, level, sender, mobX, mobY, enemyMobSpawn->direction);
+        spawnMobAt(m_CurrentMobID, type, level, sender, mobX, mobY, enemyMobSpawn->getDirection());
 
-        protocol::SpawnMobPacket packet(m_CurrentMobID, type, level, sender, mobX, mobY, enemyMobSpawn->direction);
+        protocol::SpawnMobPacket packet(m_CurrentMobID, type, level, sender, mobX, mobY, enemyMobSpawn->getDirection());
         m_Server->broadcastPacket(&packet);
 
         m_CurrentMobID++;

src/misc/Shapes.cpp

@@ -0,0 +1,84 @@
+#include "misc/Shapes.h"
+
+#include <algorithm>
+#include <cmath>
+
+namespace td {
+namespace utils {
+namespace shape {
+
+float Point::distance(const Point& point) const {
+    return std::sqrt(distanceSquared(point));
+}
+
+float Point::distanceSquared(const Point& point) const {
+    return (m_X - point.getX()) * (m_X - point.getX()) + (m_Y - point.getY()) * (m_Y - point.getY());
+}
+
+
+bool Rectangle::collidesWith(const Point& point) const {
+    return point.getX() > getTopLeft().getX() && point.getX() < getBottomRight().getX() &&
+        point.getY() > getTopLeft().getY() && point.getY() < getBottomRight().getY();
+}
+
+bool Rectangle::collidesWith(const Rectangle& rect) const {
+    Point point1{ rect.getTopLeft().getX(), rect.getTopLeft().getY() };
+    Point point2{ rect.getTopLeft().getX(), rect.getBottomRight().getY() };
+    Point point3{ rect.getBottomRight().getX(), rect.getTopLeft().getY() };
+    Point point4{ rect.getBottomRight().getX(), rect.getBottomRight().getY() };
+
+    if (collidesWith(point1)) return true;
+    if (collidesWith(point2)) return true;
+    if (collidesWith(point3)) return true;
+    if (collidesWith(point4)) return true;
+
+    return false;
+}
+
+bool Rectangle::collidesWith(const Circle& circle) const {
+    return circle.collidesWith(*this);
+}
+
+float Rectangle::distance(const Circle& circle) const {
+    return circle.distance(*this);
+}
+
+float Rectangle::distanceSquared(const Circle& circle) const {
+    return circle.distanceSquared(*this);
+}
+
+
+
+
+
+bool Circle::collidesWith(const Point& point) const {
+    return m_Radius * m_Radius > m_Center.distanceSquared(point);
+}
+
+bool Circle::collidesWith(const Rectangle& rect) const {
+    float distanceSquared_ = distanceSquared(rect);
+
+    return distanceSquared_ < m_Radius* m_Radius;
+}
+
+bool Circle::collidesWith(const Circle& circle) const {
+    return m_Radius + circle.getRadius() > m_Center.distanceSquared(circle.getCenter());
+}
+
+float Circle::distance(const Rectangle& rect) const {
+    return std::sqrt(distanceSquared(rect));
+}
+
+float Circle::distanceSquared(const Rectangle& rect) const {
+    float closestX = std::clamp(m_Center.getX(), rect.getTopLeft().getX(), rect.getBottomRight().getX());
+    float closestY = std::clamp(m_Center.getY(), rect.getTopLeft().getY(), rect.getBottomRight().getY());
+
+    float distanceX = m_Center.getX() - closestX;
+    float distanceY = m_Center.getY() - closestY;
+
+    return (distanceX * distanceX) + (distanceY * distanceY);
+}
+
+} // namespace shape
+} // namespace utils
+} // namespace td

src/render/WorldRenderer.cpp

@@ -74,7 +74,7 @@ void WorldRenderer::renderMobs() const {
     for (game::MobPtr mob : m_World->getMobList()) {
         Renderer::Model model;
         model.vao = m_MobVao.get();
-        model.positon = { mob->getX(), mob->getY() };
+        model.positon = { mob->getCenterX(), mob->getCenterY() };
         m_Renderer->renderModel(model);
     }
 }
@@ -235,11 +235,7 @@ void WorldRenderer::renderMobTooltip() const {
 void WorldRenderer::detectMobHovering() const {
     glm::vec2 cursorWorldPos = getCursorWorldPos();
     for (game::MobPtr mob : m_World->getMobList()) {
-        // mob size is currently 1x1 for all mobs
+        if(mob->collidesWith({cursorWorldPos.x, cursorWorldPos.y})){
-        float mobCenterX = mob->getX();
-        float mobCenterY = mob->getY();
-        if (cursorWorldPos.x > mobCenterX - 0.5f && cursorWorldPos.x < mobCenterX + 0.5f
-            && cursorWorldPos.y > mobCenterY - 0.5f && cursorWorldPos.y < mobCenterY + 0.5f) {
             m_MobTooltip->setMob(mob.get());
             return;
         }

src/render/loader/WorldLoader.cpp

@@ -97,8 +97,8 @@ GL::VertexArray loadWorldModel(const td::game::World* world) {
 
     for (int spawnColor = 0; spawnColor < 2; spawnColor++) {
         const game::Spawn& spawn = world->getTeam(game::TeamColor(spawnColor)).getSpawn();
-        float fromX = spawn.x - 2, toX = spawn.x + 3;
+        float fromX = spawn.getTopLeft().getX() , toX = spawn.getBottomRight().getX();
-        float fromY = spawn.y - 2, toY = spawn.y + 3;
+        float fromY = spawn.getTopLeft().getY() , toY = spawn.getBottomRight().getY();
 
         positions.insert(positions.end(), {
             fromX, fromY,
@@ -125,8 +125,8 @@ GL::VertexArray loadWorldModel(const td::game::World* world) {
 
     for (int castleColor = 0; castleColor < 2; castleColor++) {
         const game::TeamCastle& castle = world->getTeam(game::TeamColor(castleColor)).getCastle();
-        float fromX = castle.x - 2, toX = castle.x + 3;
+        float fromX = castle.getTopLeft().getX(), toX = castle.getBottomRight().getX();
-        float fromY = castle.y - 2, toY = castle.y + 3;
+        float fromY = castle.getTopLeft().getY(), toY = castle.getBottomRight().getY();
 
         positions.insert(positions.end(), {
             fromX, fromY,
@@ -203,17 +203,17 @@ RenderData loadTowerModel(game::TowerPtr tower) {
     float towerY, towerDY;
 
     if (tower->getSize() == game::TowerSize::Little) {
-        towerX = tower->getX() - 1;
+        towerX = tower->getCenterX() - 1.5f;
-        towerDX = tower->getX() + 2;
+        towerDX = tower->getCenterX() + 1.5f;
 
-        towerY = tower->getY() - 1;
+        towerY = tower->getCenterY() - 1.5f;
-        towerDY = tower->getY() + 2;
+        towerDY = tower->getCenterY() + 1.5f;
     } else {
-        towerX = tower->getX() - 2;
+        towerX = tower->getCenterX() - 2.5f;
-        towerDX = tower->getX() + 3;
+        towerDX = tower->getCenterX() + 2.5f;
 
-        towerY = tower->getY() - 2;
+        towerY = tower->getCenterY() - 2.5f;
-        towerDY = tower->getY() + 3;
+        towerDY = tower->getCenterY() + 2.5f;
     }
     std::vector<float> positions = {
         towerX, towerY,

src/updater/Updater.cpp

@@ -1,4 +1,5 @@
-#include "misc/Updater.h"
+#include "updater/Updater.h"
+
 #include "misc/Platform.h"
 #include "misc/DataBuffer.h"
 

xmake.lua

@@ -8,7 +8,7 @@ target("TowerDefense")
     add_files("src/*.cpp", "src/*/*.cpp", "src/*/*/*.cpp", "src/*/*/*/*.cpp")
     add_cxflags("-pthread")
 
-    set_languages("c++14")
+    set_languages("c++17")
 
     add_links("glbinding", "z", "SDL2")