function init() {
	cx = 0
	cy = 0
	t = 0
}

function reset() {
	cx = 0
	cy = 0
	t = 0	
}

function step() {
	if (t < 50){
		cx = cx + 0.5
		cy = cy + 0.5
		goto(cx,cy)
		log("x=",cx,"y=",cy)
	} else log("x=",cx," y=",cy," FIN")
	t = t+1
}

function destroy() {
}