FuncWorks.XNA.XTiled.Map.DrawLayer C# (CSharp) Method

        private void DrawLayer(SpriteBatch spriteBatch, Int32 layerID, ref Rectangle region, Int32 txMin, Int32 txMax, Int32 tyMin, Int32 tyMax, Single layerDepth)
        {
            for (int y = tyMin; y <= tyMax; y++) {
                for (int x = txMin; x <= txMax; x++) {
                    if (x < this.TileLayers[layerID].Tiles.Length && y < this.TileLayers[layerID].Tiles[x].Length && this.TileLayers[layerID].Tiles[x][y] != null) {
                        Rectangle tileTarget = this.TileLayers[layerID].Tiles[x][y].Target;
                        // Removed the offset part of this code.
                        //tileTarget.X = tileTarget.X - region.X;
                        //tileTarget.Y = tileTarget.Y - region.Y;

                        spriteBatch.Draw(
                            this.Tilesets[this.SourceTiles[this.TileLayers[layerID].Tiles[x][y].SourceID].TilesetID].Texture,
                            tileTarget,
                            this.SourceTiles[this.TileLayers[layerID].Tiles[x][y].SourceID].Source,
                            this.TileLayers[layerID].OpacityColor,
                            this.TileLayers[layerID].Tiles[x][y].Rotation,
                            this.SourceTiles[this.TileLayers[layerID].Tiles[x][y].SourceID].Origin,
                            this.TileLayers[layerID].Tiles[x][y].Effects,
                            layerDepth);
                    }
                }
            }
        }

        private void DrawLayersInOrder(Map map, SpriteBatch spriteBatch, Rectangle viewport)
        {
            float layerDepth = 1.0f;
            float layerDepthDec = 1.0f / (float)map.LayerOrder.Length;

            foreach (var layer in map.LayerOrder)
            {
                switch (layer.LayerType)
                {
                    case LayerType.TileLayer:
                        map.DrawLayer(spriteBatch, layer.ID, viewport, layerDepth);
                        break;

                    case LayerType.ObjectLayer:
                        map.DrawObjectLayer(spriteBatch, layer.ID, viewport, layerDepth);
                        break;

                    case LayerType.ImageLayer:
                        map.DrawImageLayer(spriteBatch, layer.ID, viewport, layerDepth);
                        break;
                }

                layerDepth -= layerDepthDec;
            }
        }