Add Game as singleton

game/main.c

@@ -10,14 +10,14 @@
 
 #include "utils/pathfinding.h"
 
-Game *GAME = NULL;
+ECS_COMPONENT_DECLARE(Game);
 
-bool init(Game *game);
-void deinit(Game *game);
+bool init(void *userData);
+void deinit(void *userData);
 
-void update(float dt, Game *game);
-void render(float dt, Game *game);
-void imguiRender(float dt, Game *game);
+void update(float dt, void *userData);
+void render(float dt, void *userData);
+void imguiRender(float dt, void *userData);
 
 
 bool bzMain(BzAppDesc *appDesc, int argc, const char **argv) {
@@ -32,17 +32,28 @@ bool bzMain(BzAppDesc *appDesc, int argc, const char **argv) {
     appDesc->render = (BzAppRenderFunc) render;
     appDesc->imguiRender = (BzAppRenderFunc) imguiRender;
 
-    GAME = bzAlloc(sizeof(*GAME));
-    appDesc->userData = GAME;
+    Game *game = bzAlloc(sizeof(*game));
+    bzMemSet(game, 0, sizeof(*game));
+    appDesc->userData = NULL;
     appDesc->useFlecs = true;
 
     return true;
 }
 
-bool init(Game *game) {
+bool init(void *userData) {
+    BZ_UNUSED(userData);
     SetExitKey(-1);
+    ECS_COMPONENT_DEFINE(ECS, Game);
     initComponentIDs(ECS);
 
+    // For ecs explorer
+    //ecs_singleton_set(ECS, EcsRest, {0});
+    //ECS_IMPORT(ECS, FlecsMonitor);
+
+    ecs_singleton_set(ECS, Game, {});
+    Game *game = ecs_singleton_get_mut(ECS, Game);
+
+
     int screenWidth = 1280;
     int screenHeight = 720;
 
@@ -97,18 +108,23 @@ bool init(Game *game) {
     ECS_OBSERVER(ECS, startPath, EcsOnSet, Path);
     return true;
 }
-void deinit(Game *game) {
+void deinit(void *userData) {
+    BZ_UNUSED(userData);
+    Game *game = ecs_singleton_get_mut(ECS, Game);
+
     bzTileMapDestroy(&game->map);
     bzTilesetDestroy(&game->terrainTileset);
     bzTilesetDestroy(&game->buildingsTileset);
     bzTilesetDestroy(&game->entitiesTileset);
 
-    bzFree(GAME);
-    GAME = NULL;
+    ecs_singleton_remove(ECS, Game);
 }
 
 
-void update(float dt, Game *game) {
+void update(float dt, void *userData) {
+    BZ_UNUSED(userData);
+    Game *game = ecs_singleton_get_mut(ECS, Game);
+
     char titleBuf[32];
     snprintf(titleBuf, sizeof(titleBuf), "FPS: %d | %.2f ms", GetFPS(), GetFrameTime() * 1000);
     SetWindowTitle(titleBuf);
@@ -166,7 +182,10 @@ void update(float dt, Game *game) {
     }
 }
 
-void render(float dt, Game *game) {
+void render(float dt, void *userData) {
+    BZ_UNUSED(userData);
+    Game *game = ecs_singleton_get_mut(ECS, Game);
+
     ClearBackground(RAYWHITE);
     BeginMode2D(game->camera);
 
@@ -204,7 +223,10 @@ void render(float dt, Game *game) {
     EndMode2D();
 }
 
-void imguiRender(float dt, Game *game) {
+void imguiRender(float dt, void *userData) {
+    BZ_UNUSED(userData);
+    Game *game = ecs_singleton_get_mut(ECS, Game);
+
     igSetNextWindowSize((ImVec2){300, 400}, ImGuiCond_FirstUseEver);
     igBegin("Debug Menu", NULL, 0);
     if (igCollapsingHeader_TreeNodeFlags("Resources", 0)) {