LÖVE transform stack test

gfxstack.lua

local t = 0
function love.update(dt)
  t = t + dt
end

function love.draw()
  local w, h = love.graphics.getWidth(), love.graphics.getHeight()
  love.graphics.clear(0, 0, 0)
  love.graphics.translate(w/2, h/2)
  love.graphics.push()
  love.graphics.scale(.7 + math.sin(t)*.2, .7 + math.cos(t)*.2)
  love.graphics.push()
  love.graphics.rotate(math.sin(t)*.5)
  love.graphics.push()
  love.graphics.scale(.5, .5)
  love.graphics.shear(math.sin(-t), 0)
  love.graphics.push()
  love.graphics.scale(.5, .5)
  love.graphics.shear(0, math.cos(t*3))
  love.graphics.setColor(0, 255, 127, 255)
  love.graphics.rectangle('fill', -w/4, -h/4, w/2, h/2)
  love.graphics.pop()
  love.graphics.setColor(127, 255, 0, 255)
  love.graphics.rectangle('line', -w/4, -h/4, w/2, h/2)
  love.graphics.pop()
  love.graphics.setColor(255, 255, 0, 255)
  love.graphics.rectangle('line', -w/4, -h/4, w/2, h/2)
  love.graphics.pop()
  love.graphics.setColor(255, 127, 0, 255)
  love.graphics.rectangle('line', -w/4, -h/4, w/2, h/2)
  love.graphics.pop()
  love.graphics.setColor(255, 0, 0, 255)
  love.graphics.rectangle('line', -w/4, -h/4, w/2, h/2)
end