Stores the size of the decal inside itself. Allows drawing the decal without accessing the sprite and makes it safe to move the sprite used to create de decal.

Update function from decal will also update the size to match the used sprite.
UpdateSprite will resize the sprite to the size of the decal.

Author: Gusgo99

olcPixelGameEngine.h

@@ -1101,6 +1101,8 @@ namespace olc
 
 	public: // But dont touch
 		int32_t id = -1;
+		int32_t width = 0;
+		int32_t height = 0;
 		olc::Sprite* sprite = nullptr;
 		olc::vf2d vUVScale = { 1.0f, 1.0f };
 	};
@@ -2026,6 +2028,8 @@ namespace olc
 	{
 		id = -1;
 		if (spr == nullptr) return;
+		width = spr->width;
+		height = spr->height;
 		sprite = spr;
 		id = renderer->CreateTexture(sprite->width, sprite->height, filter, clamp);
 		Update();
@@ -2040,14 +2044,17 @@ namespace olc
 	void Decal::Update()
 	{
 		if (sprite == nullptr) return;
-		vUVScale = { 1.0f / float(sprite->width), 1.0f / float(sprite->height) };
+		width = sprite->width;
+		height = sprite->height;
+		vUVScale = { 1.0f / float(width), 1.0f / float(height) };
 		renderer->ApplyTexture(id);
 		renderer->UpdateTexture(id, sprite);
 	}
 
 	void Decal::UpdateSprite()
 	{
 		if (sprite == nullptr) return;
+		sprite->SetSize(width, height);
 		renderer->ApplyTexture(id);
 		renderer->ReadTexture(id, sprite);
 	}
@@ -3227,8 +3234,8 @@ namespace olc
 
 		olc::vf2d vScreenSpaceDim =
 		{
-			vScreenSpacePos.x + (2.0f * (float(decal->sprite->width) * vInvScreenSize.x)) * scale.x,
-			vScreenSpacePos.y - (2.0f * (float(decal->sprite->height) * vInvScreenSize.y)) * scale.y
+			vScreenSpacePos.x + (2.0f * (float(decal->width) * vInvScreenSize.x)) * scale.x,
+			vScreenSpacePos.y - (2.0f * (float(decal->height) * vInvScreenSize.y)) * scale.y
 		};
 
 		DecalInstance di;