public MTSimpleSpriteBatchItem CreateSimpleBatchItem()
        {
            MTSimpleSpriteBatchItem simpleSpriteBatchItem = this._freeSimpleBatchItemQueue.Count <= 0 ? new MTSimpleSpriteBatchItem() : this._freeSimpleBatchItemQueue.Dequeue();

            this._simpleBatchItemList.Add(simpleSpriteBatchItem);
            return(simpleSpriteBatchItem);
        }
        public void DrawSimpleBatch(SpriteSortMode sortMode)
        {
            if (this._simpleBatchItemList.Count == 0)
            {
                return;
            }
            switch (sortMode)
            {
            case SpriteSortMode.BackToFront:
                this._simpleBatchItemList.Sort(new Comparison <MTSimpleSpriteBatchItem>(MTSpriteBatcher.CompareSimpleReverseDepth));
                break;

            case SpriteSortMode.FrontToBack:
                this._simpleBatchItemList.Sort(new Comparison <MTSimpleSpriteBatchItem>(MTSpriteBatcher.CompareSimpleDepth));
                break;
            }
            int index1 = 0;
            int numBatchItems;

            for (int count = this._simpleBatchItemList.Count; count > 0; count -= numBatchItems)
            {
                int start = 0;
                int end   = 0;
                numBatchItems = count;
                if (numBatchItems > 5461)
                {
                    numBatchItems = 5461;
                }
                this.EnsureSimpleArrayCapacity(numBatchItems);
                int num1 = 0;
                while (num1 < numBatchItems)
                {
                    MTSimpleSpriteBatchItem simpleBatchItem    = this._simpleBatchItemList[index1];
                    VertexPositionColor[]   simpleVertexArray1 = this._simpleVertexArray;
                    int index2 = end;
                    int num2   = index2 + 1;
                    simpleVertexArray1[index2] = simpleBatchItem.vertexTL;
                    VertexPositionColor[] simpleVertexArray2 = this._simpleVertexArray;
                    int index3 = num2;
                    int num3   = index3 + 1;
                    simpleVertexArray2[index3] = simpleBatchItem.vertexTR;
                    VertexPositionColor[] simpleVertexArray3 = this._simpleVertexArray;
                    int index4 = num3;
                    int num4   = index4 + 1;
                    simpleVertexArray3[index4] = simpleBatchItem.vertexBL;
                    VertexPositionColor[] simpleVertexArray4 = this._simpleVertexArray;
                    int index5 = num4;
                    end = index5 + 1;
                    simpleVertexArray4[index5] = simpleBatchItem.vertexBR;
                    this._freeSimpleBatchItemQueue.Enqueue(simpleBatchItem);
                    ++num1;
                    ++index1;
                }
                this.FlushSimpleVertexArray(start, end);
            }
            this._simpleBatchItemList.Clear();
        }
 private static int CompareSimpleReverseDepth(
     MTSimpleSpriteBatchItem a,
     MTSimpleSpriteBatchItem b)
 {
     return(0);
 }
 private static int CompareSimpleDepth(MTSimpleSpriteBatchItem a, MTSimpleSpriteBatchItem b) => 0;