Commit 5f974917 authored by santiaago's avatar santiaago
Browse files

extract hasArm

parent e436e5b2

draw/spaceinvaders/spaceinvaders.go

+15 −5
Original line number Diff line number Diff line
@@ -113,6 +113,18 @@ func hasAnthenas2(invader invader, xQ int) (anthena bool) { 
	return

}



func hasArm(invader invader, squares, xQ int) (arm bool) {

	if invader.arms <= 0 {

		return

	}

	leftOver := squares - invader.length

	half := leftOver / 2

	if xQ == half || xQ == squares-1-half || xQ == half-1 || xQ == squares-half {

		arm = true

	}

	return

}



func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size int) {

	canvas := svg.New(w)

	canvas.Start(size, size)
@@ -170,13 +182,11 @@ func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size 
			}



			if yQ == 5 {

				leftOver := squares - invader.length

				if invader.arms > 0 {

					if xQ == (leftOver/2) || xQ == squares-1-leftOver/2 || xQ == (leftOver/2)-1 || xQ == (squares-leftOver/2) {

				if hasArm(invader, squares, xQ) {

					fill = draw.FillFromRGBA(colorMap[xQ])

				}

			}

			}



			if yQ == 4 || yQ == 6 { // arm extension

				leftOver := squares - invader.length

				if invader.arms > 0 {