feat: add tower detection

include/game/Towers.h

@@ -32,9 +32,9 @@ enum class TowerType : std::uint8_t {
     TowerCount
 };
 
-enum class TowerSize : bool {
-    Little = 0, // 3x3
-    Big,        // 5x5
+enum class TowerSize : std::uint8_t {
+    Little = 3, // 3x3
+    Big = 5,        // 5x5
 };
 
 enum class TowerPath : std::uint8_t {

include/game/World.h

@@ -162,6 +162,8 @@ public:
     bool CanPlaceLittleTower(const glm::vec2& worldPos, PlayerID player) const;
     bool CanPlaceBigTower(const glm::vec2& worldPos, PlayerID player) const;
 
+    TowerPtr GetTower(const glm::vec2& position); // returns null if no tower is here
+
     const std::unordered_map<ChunkCoord, ChunkPtr>& getChunks() const { return m_Chunks; }
 
     const Color& getSpawnColor(TeamColor color) const { return m_SpawnColorPalette[(std::size_t)color]; }

src/game/World.cpp

@@ -322,7 +322,7 @@ bool World::saveMap(const std::string& fileName) const {
 void World::tick(std::uint64_t delta) {
     moveMobs(delta);
     tickMobs(delta);
-    for(TowerPtr tower : m_Towers){
+    for (TowerPtr tower : m_Towers) {
         tower->tick(delta, this);
     }
     cleanDeadMobs();
@@ -343,7 +343,7 @@ TowerPtr World::placeTowerAt(TowerID id, TowerType type, std::int32_t x, std::in
 }
 
 void World::tickMobs(std::uint64_t delta) {
-    for(MobPtr mob : m_Mobs) {
+    for (MobPtr mob : m_Mobs) {
         mob->tick(delta);
     }
 }
@@ -361,7 +361,7 @@ void World::moveMobs(std::uint64_t delta) {
 
         float walkAmount = mobWalkSpeed * ((float)delta / 1000.0f);
 
-        if(mob->hasEffect(EffectType::Slowness))
+        if (mob->hasEffect(EffectType::Slowness))
             walkAmount *= 0.70;
 
         switch (mob->getDirection()) {
@@ -415,8 +415,8 @@ bool World::CanPlaceLittleTower(const glm::vec2& worldPos, PlayerID playerID) co
     }
 
     if (tile->getType() == game::TileType::Tower) {
-        const TowerTile* towerTile = (const TowerTile*) tile.get();
-        if(towerTile->team_owner != player.getTeamColor())
+        const TowerTile* towerTile = (const TowerTile*)tile.get();
+        if (towerTile->team_owner != player.getTeamColor())
             return false;
         for (int x = -1; x < 2; x++) {
             for (int y = -1; y < 2; y++) {
@@ -441,8 +441,8 @@ bool World::CanPlaceBigTower(const glm::vec2& worldPos, PlayerID playerID) const
     }
 
     if (tile->getType() == game::TileType::Tower) {
-        const TowerTile* towerTile = (const TowerTile*) tile.get();
-        if(towerTile->team_owner != player.getTeamColor())
+        const TowerTile* towerTile = (const TowerTile*)tile.get();
+        if (towerTile->team_owner != player.getTeamColor())
             return false;
         for (int x = -2; x < 3; x++) {
             for (int y = -2; y < 3; y++) {
@@ -458,20 +458,37 @@ bool World::CanPlaceBigTower(const glm::vec2& worldPos, PlayerID playerID) const
     return false;
 }
 
-void World::cleanDeadMobs(){
-    for(std::size_t i = 0; i < m_Mobs.size(); i++){
+void World::cleanDeadMobs() {
+    for (std::size_t i = 0; i < m_Mobs.size(); i++) {
         MobPtr mob = m_Mobs[i];
-        if(!mob->isAlive()){
+        if (!mob->isAlive()) {
             m_Mobs.erase(m_Mobs.begin() + i);
         }
     }
 }
 
-void World::OnArrowShot(MobPtr target, Tower* shooter){
+TowerPtr World::GetTower(const glm::vec2& position) {
+    for (TowerPtr tower : m_Towers) {
+        if (tower->getSize() == TowerSize::Big) {
+            if (tower->getX() - 2 <= position.x && tower->getX() + 3 >= position.x &&
+                tower->getY() - 2 <= position.y && tower->getY() + 3 >= position.y) {
+                return tower;
+            }
+        } else {
+            if (tower->getX() - 1 <= position.x && tower->getX() + 2 >= position.x &&
+                tower->getY() - 1 <= position.y && tower->getY() + 2 >= position.y) {
+                return tower;
+            }
+        }
+    }
+    return nullptr;
+}
+
+void World::OnArrowShot(MobPtr target, Tower* shooter) {
     bool explosiveArrows = shooter->getLevel().getPath() == TowerPath::Bottom;
-    if(explosiveArrows){
+    if (explosiveArrows) {
         // aoe damage
-    }else{
+    } else {
         target->damage(shooter->getStats()->getDamage());
     }
 }