Tweak spatial grid size, add colliders rendering

game/systems_entity.c

@@ -22,8 +22,9 @@ void entityUpdatePhysics(ecs_iter_t *it) {
         //bzSpatialGridUpdate(game->entityGrid, spatialID[i], pos[i].x, pos[i].y, size[i].x, size[i].y);
         ecs_entity_t *e = bzSpatialGridGetData(game->entityGrid, spatialID[i]);
         BZ_ASSERT(*e == it->entities[i]);
-        bzSpatialGridRemove(game->entityGrid, spatialID[i]);
-        spatialID[i] = bzSpatialGridInsert(game->entityGrid, &(it->entities[i]), pos[i].x, pos[i].y, size[i].x, size[i].y);
+        f32 posX = pos[i].x - size[i].x * 0.5f;
+        f32 posY = pos[i].y - size[i].y * 0.5f;
+        bzSpatialGridUpdate(game->entityGrid, spatialID[i], posX, posY, size[i].x, size[i].y);
     }
 
 }
@@ -59,7 +60,6 @@ static void render(ecs_iter_t *it) {
         if (t[i].flipX) src.width *= -1.0f;
         if (t[i].flipY) src.height *= -1.0f;
         DrawTexturePro(t[i].texture, src, dst, origin, r[i], WHITE);
-        //DrawRectangleLines(dst.x - dst.width * 0.5f, dst.y - dst.height * 0.5f, dst.width, dst.height, RED);
     }
 }
 
@@ -73,6 +73,17 @@ void renderEntities(ecs_iter_t *it) {
     render(it);
 }
 
+void renderColliders(ecs_iter_t *it) {
+    Position *pos = ecs_field(it, Position, 1);
+    Size *size = ecs_field(it, Size, 2);
+
+    for (i32 i = 0; i < it->count; i++) {
+        f32 posX = pos[i].x - size[i].x * 0.5f;
+        f32 posY = pos[i].y - size[i].y * 0.5f;
+        DrawRectangleLines(posX, posY, size[i].x, size[i].y, RED);
+    }
+}
+
 void updatePos(ecs_iter_t *it) {
     Position *pos = ecs_field(it, Position, 1);
     TargetPosition *target = ecs_field(it, TargetPosition, 2);