added opacity to sprite

include/arc/graphics/sdl/sprite.h

@@ -9,6 +9,8 @@ struct ARC_Sprite {
     ARC_Spritesheet *spritesheet;
     ARC_Array       *frames;
     uint32_t        *frameIndex;
+    //TODO: temp
+    uint8_t          opacity;
 };
 
 #endif // !ARC_SDL

include/arc/graphics/sprite.h

@@ -42,6 +42,18 @@ void ARC_Sprite_Destroy(ARC_Sprite *sprite);
  */
 void ARC_Sprite_Copy(ARC_Sprite **newSprite, ARC_Sprite *oldSprite);
 
+//TODO: temp
+/**
+ * @brief sets ARC_Sprite's opacity
+ *
+ * @param sprite  ARC_Sprite that is changing opacity
+ * @param opacity new opacity for ARC_Sprite
+ *
+ * @note this is temp because opacity probably should be a value
+ *       bigger than 255
+*/
+void ARC_Sprite_SetOpacity(ARC_Sprite *sprite, uint8_t opacity);
+
 /**
  * @brief renders ARC_Sprite type
  * 

src/engine/engine.c

@@ -104,7 +104,6 @@ void ARC_Engine_Run(ARC_EngineData *data){
     }
 
 #ifdef ARC_SDL
-    SDL_SetRenderDrawBlendMode((SDL_Renderer *)data->renderer, SDL_BLENDMODE_BLEND);
 
     SDL_Event *event = data->mouse->event;
     double lastTime = 0, currentTime;

src/graphics/sdl/config.c

@@ -53,7 +53,10 @@ int32_t ARC_SDL_Texture_Load(const char *path, SDL_Texture **texture){
         return 1; // GE_SDL_ERRNO_
     }
 
+    SDL_BlendMode tempMode;
+    SDL_GetSurfaceBlendMode(surface, &tempMode);
     *texture = SDL_CreateTextureFromSurface(global_renderer, surface);
+    SDL_GetTextureBlendMode(*texture, &tempMode);
 
     SDL_FreeSurface(surface);
     IMG_Quit();
@@ -213,12 +216,7 @@ uint8_t ARC_Sprite_Read(ARC_Config* config, ARC_String *string, void **value){
         }
     }
     //sprite
-    *value = malloc(sizeof(ARC_Sprite));
-    ((ARC_Sprite *) *value)->frameIndex = malloc(sizeof(uint32_t));
-
-     ((ARC_Sprite *) *value)->spritesheet = spritesheet;
-     ((ARC_Sprite *) *value)->frames      = frames;
-    *((ARC_Sprite *) *value)->frameIndex  = 0;
+    ARC_Sprite_Create((ARC_Sprite **)value, spritesheet, frames);
 
     return 0;
 }

src/graphics/sdl/renderer.c

@@ -21,6 +21,8 @@ void ARC_Renderer_Create(ARC_Renderer **renderer, ARC_RenderInfo *info){
         ARC_DEBUG_LOG(arc_errno, "SDL_CreateRenderer(%p, %d, %u);", info->window, info->index, info->flags);
         free(renderer);
     }
+
+    SDL_SetRenderDrawBlendMode((SDL_Renderer *)*renderer, SDL_BLENDMODE_BLEND);
 }
 
 void ARC_Renderer_Destroy(ARC_Renderer *renderer){

src/graphics/sdl/sprite.c

@@ -14,6 +14,7 @@ void ARC_Sprite_Create(ARC_Sprite **sprite, ARC_Spritesheet *spritesheet, ARC_Ar
     (*sprite)->frames = frames;
     (*sprite)->frameIndex = (uint32_t *)malloc(sizeof(uint32_t));
     *(*sprite)->frameIndex = 0;
+    (*sprite)->opacity = 255;
 }
 
 void ARC_Sprite_Destroy(ARC_Sprite *sprite){
@@ -28,7 +29,13 @@ void ARC_Sprite_Copy(ARC_Sprite **newSprite, ARC_Sprite *oldSprite){
     *(*newSprite)->frameIndex = *oldSprite->frameIndex;
 }
 
+void ARC_Sprite_SetOpacity(ARC_Sprite *sprite, uint8_t opacity){
+    sprite->opacity = opacity;
+}
+
 void ARC_Sprite_Render(ARC_Sprite *sprite, ARC_Renderer *renderer, ARC_Rect *renderBounds){
+    //TODO: note, this is set here so not all entities in the sheet get opacity set
+    SDL_SetTextureAlphaMod((SDL_Texture *)sprite->spritesheet->texture, sprite->opacity); 
     SDL_RenderCopy((SDL_Renderer *)renderer, sprite->spritesheet->texture, (SDL_Rect *)sprite->frames->data + *sprite->frameIndex, (SDL_Rect *)renderBounds);
 }
 
@@ -42,10 +49,14 @@ void ARC_Sprite_RenderFlip(ARC_Sprite *sprite, ARC_Renderer *renderer, ARC_Rect
         flip |= SDL_FLIP_VERTICAL;
     }
 
+    //TODO: note, this is set here so not all entities in the sheet get opacity set
+    SDL_SetTextureAlphaMod((SDL_Texture *)sprite->spritesheet->texture, sprite->opacity); 
     SDL_RenderCopyEx((SDL_Renderer *)renderer, sprite->spritesheet->texture, (SDL_Rect *)sprite->frames->data + *sprite->frameIndex, (SDL_Rect *)renderBounds, 0.0, NULL, flip);
 }
 
 void ARC_Sprite_RenderRotated(ARC_Sprite *sprite, ARC_Renderer *renderer, ARC_Rect *renderBounds, ARC_Point *center, double angle){
+    //TODO: note, this is set here so not all entities in the sheet get opacity set
+    SDL_SetTextureAlphaMod((SDL_Texture *)sprite->spritesheet->texture, sprite->opacity); 
     SDL_RenderCopyEx((SDL_Renderer *)renderer, sprite->spritesheet->texture, (SDL_Rect *)sprite->frames->data + *sprite->frameIndex, (SDL_Rect *)renderBounds, angle, (SDL_Point *)center, SDL_FLIP_NONE);
 }