Tiled sprite improvements!

src/dawn/scene/components/display/TiledSprite.cpp

@@ -12,7 +12,10 @@ TiledSprite::TiledSprite(SceneItem *item) :
   SceneItemComponent(item),
   tile(-1),
   tileset(nullptr),
-  meshHost(nullptr)
+  meshHost(nullptr),
+  flip(TILED_SPRITE_FLIP_Y),
+  sizeType(TILED_SPRITE_SIZE_TYPE_SCALE),
+  size(1.0f)
 {
 
 }
@@ -33,11 +36,60 @@ void TiledSprite::onStart() {
   useEffect([&]{
     if(this->meshHost == nullptr || this->tileset == nullptr) return;
     auto tile = this->tileset->getTile(this->tile);
-    this->meshHost->uv0 = tile.uv0;
-    this->meshHost->uv1 = tile.uv1;
+    this->meshHost->uv0 = glm::vec2(
+      (((flag_t)this->flip) & TILED_SPRITE_FLIP_X) == 0 ? tile.uv0.x : tile.uv1.x,
+      (((flag_t)this->flip) & TILED_SPRITE_FLIP_Y) == 0 ? tile.uv0.y : tile.uv1.y
+    );
+    this->meshHost->uv1 = glm::vec2(
+      (((flag_t)this->flip) & TILED_SPRITE_FLIP_X) == 0 ? tile.uv1.x : tile.uv0.x,
+      (((flag_t)this->flip) & TILED_SPRITE_FLIP_Y) == 0 ? tile.uv1.y : tile.uv0.y
+    );
   }, {
     &this->tile,
     &this->meshHost,
-    &this->tileset
+    &this->tileset,
+    &this->flip
+  })();
+
+  useEffect([&]{
+    if(this->meshHost == nullptr || this->tileset == nullptr) return;
+    auto tile = this->tileset->getTile(this->tile);
+
+    glm::vec2 size;
+
+    switch(this->sizeType) {
+      case TILED_SPRITE_SIZE_TYPE_SCALE: {
+        size = glm::vec2(
+          this->tileset->getTileWidth(this->tile),
+          this->tileset->getTileHeight(this->tile)
+        ) * (float_t)this->size;
+        break;
+      }
+
+      case TILED_SPRITE_SIZE_TYPE_WIDTH_RATIO: {
+        float_t rw = this->tileset->getTileHeight(this->tile) / this->tileset->getTileWidth(this->tile);
+        size.x = (float_t)this->size;
+        size.y = size.x * rw;
+        break;
+      }
+
+      case TILED_SPRITE_SIZE_TYPE_HEIGHT_RATIO: {
+        float_t rh = this->tileset->getTileWidth(this->tile) / this->tileset->getTileHeight(this->tile);
+        size.y = (float_t)this->size;
+        size.x = size.y * rh;
+        break;
+      }
+
+      default:
+        assertUnreachable();
+    }
+
+    this->meshHost->xy0 = -size;
+    this->meshHost->xy1 = size;
+  }, {
+    &this->tile,
+    &this->meshHost,
+    &this->tileset,
+    &this->size
   })();
 }