/// <summary>
/// Uses the VisualServer to draw each of an entity's split sprites, by:
/// 1. Obtaining the Node2D that is designated to play host to a given split sprite
/// 2. Changing the Node2D's (TileMap) parent if required
/// 3. Creating an RID for the canvas item (the sprite drawing) and storing it so it can be freed later
/// </summary>
/// <param name="tileMaps"></param>
/// <param name="tileMapZIndex"></param>
/// <param name="entityPos"></param>
/// <param name="entityDrawPos">Offsets the sprite upwards. Used for drawing entities falling/jumping.</param>
public void DrawSplitSprites(TileMapList tileMaps, int tileMapZIndex, Vector2 entityPos, float entityDrawPos /*State goes here*/)
{
List <SplitSpriteSheetValue> splitSprites = this._splitSpriteSheet.GetSplitSpriteInfoForAnim("idle", 0); //TODO match to entity anim state
foreach (SplitSpriteSheetValue splitSprite in splitSprites)
{
Node2D splitNode2D = this._idToSplitNodes[splitSprite.splitIndex];
TileMap tileMap = tileMaps[tileMapZIndex + splitSprite.zIndex];
if (splitNode2D.GetParent() != tileMap)
{
if (splitNode2D.GetParent() != null)
{
splitNode2D.GetParent().RemoveChild(splitNode2D);
}
tileMap.AddChild(splitNode2D);
}
RID splitSpriteRID = VisualServer.CanvasItemCreate();
this._drawnSprites.Add(splitSpriteRID);
VisualServer.CanvasItemSetParent(splitSpriteRID, splitNode2D.GetCanvasItem());
VisualServer.CanvasItemAddTextureRectRegion(splitSpriteRID,
new Rect2(Vector2.Zero, splitSprite.size),
this._splitSpriteSheet.GetSpriteSheetRID(),
new Rect2(splitSprite.sheetPos, splitSprite.size),
new Color(1, 1, 1, 1),
false,
this._splitSpriteSheet.GetSpriteSheetRID());
VisualServer.CanvasItemSetTransform(splitSpriteRID, new Transform2D(0, this._relativePos - new Vector2(Globals.TileWidth / 2, Globals.TileHeight / 2) + new Vector2(0, entityDrawPos)));
splitNode2D.Position = entityPos + splitSprite.splitPos + new Vector2(Globals.TileWidth / 2, Globals.TileHeight / 2);
}
}