anchor: SpriteBatch:set
  Changes a sprite in the batch. This requires the sprite index returned by SpriteBatch:add or SpriteBatch:addLayer.
  SpriteBatch:set( spriteindex, x, y, r, sx, sy, ox, oy, kx, ky )
  spriteindex number The index of the sprite that will be changed.
  x number The position to draw the object (x-axis).
  y number The position to draw the object (y-axis).
  r (0) number Orientation (radians).
  sx (1) number Scale factor (x-axis).
  sy (sx) number Scale factor (y-axis).
  ox (0) number Origin offset (x-axis).
  oy (0) number Origin offset (y-axis).
  kx (0) number Shear factor (x-axis).
  ky (0) number Shear factor (y-axis).
  SpriteBatch:set( spriteindex, quad, x, y, r, sx, sy, ox, oy, kx, ky )
  spriteindex number The index of the sprite that will be changed.
  quad Quad The Quad used on the image of the batch.
  x number The position to draw the object (x-axis).
  y number The position to draw the object (y-axis).
  r (0) number Orientation (radians).
  sx (1) number Scale factor (x-axis).
  sy (sx) number Scale factor (y-axis).
  ox (0) number Origin offset (x-axis).
  oy (0) number Origin offset (y-axis).
  kx (0) number Shear factor (x-axis).
  ky (0) number Shear factor (y-axis).