feat: implementar jerarquia d'entitats amb classe base Entitat

source/game/entities/bala.cpp

@@ -6,22 +6,26 @@
 
 #include <algorithm>
 #include <cmath>
+#include <cstdint>
 #include <iostream>
 
 #include "core/audio/audio.hpp"
 #include "core/defaults.hpp"
+#include "core/entities/entitat.hpp"
 #include "core/graphics/shape_loader.hpp"
 #include "core/rendering/shape_renderer.hpp"
+#include "core/types.hpp"
 #include "game/constants.hpp"
 
 Bala::Bala(SDL_Renderer* renderer)
-    : renderer_(renderer),
-      centre_({.x = 0.0F, .y = 0.0F}),
-      angle_(0.0F),
+    : Entitat(renderer),
       velocitat_(0.0F),
       esta_(false),
-      grace_timer_(0.0F),
-      brightness_(Defaults::Brightness::BALA) {
+      owner_id_(0),
+      grace_timer_(0.0F) {
+    // [NUEVO] Brightness específic per bales
+    brightness_ = Defaults::Brightness::BALA;
+
     // [NUEVO] Carregar forma compartida des de fitxer
     forma_ = Graphics::ShapeLoader::load("bullet.shp");