Drawtiles on everyFrame?

[loudo]

@meowman9000

tileData.concat([xpos, ypos, map[index]-1]);

concat() create a new array each time !!!

You should better use what restorer suggests

@restorer

tileData[tileIndex] = xpos;
tileData[tileIndex + 1] = ypos;
tileData[tileIndex + 2] = map[index] - 1;