anchor.diff:  
       gl.drawElements(TRIANGLES, maxSprites, UNSIGNED_SHORT, 0);
   
  +
       reset();
     }
   
     end() {
  -    print("End");
       flush();
       if(spritesTotal > maxSprites) {
         maxSprites = spritesTotal;
         rebuildBuffer();
  -      print(maxSprites);
       }
       spritesTotal = 0;
     }
  
positive.code:       indices[i + 3] = j + 2;
        indices[i + 4] = j + 3;
        indices[i + 5] = j + 1;
        print(j + 3);
      }
  
      gl.bindBuffer(ELEMENT_ARRAY_BUFFER, indexBuffer);
  
negative.code: 
      color = new Vector4.all(1.0);
  
      vertexBuffer = gl.createBuffer();
      indexBuffer = gl.createBuffer();
      rebuildBuffer();
  
      reset();
    }
  