feat: add tower ticks

include/game/World.h

@@ -124,6 +124,8 @@ protected:
 
     MobList m_Mobs;
 
+    std::vector<Tower> m_Towers;
+
     Game* m_Game;
 public:
     World(Game* game);

src/game/World.cpp

@@ -321,6 +321,9 @@ bool World::saveMap(const std::string& fileName) const {
 
 void World::tick(std::uint64_t delta) {
     moveMobs(delta);
+    for(Tower& tower : m_Towers){
+        tower.tick(delta);
+    }
 }
 
 void World::spawnMobAt(MobID id, MobType type, std::uint8_t level, PlayerID sender, float x, float y, Direction dir) {