Commit 95b5f43b authored by santiaago's avatar santiaago
Browse files

extract hasArmExtension

parent 5f974917

draw/spaceinvaders/spaceinvaders.go

+18 −12
Original line number Diff line number Diff line
@@ -125,6 +125,22 @@ func hasArm(invader invader, squares, xQ int) (arm bool) { 
	return

}



func hasArmExtension(invader invader, squares, xQ, yQ int) (armExtension bool) {

	if invader.arms <= 0 {

		return

	}



	leftOver := squares - invader.length

	half := leftOver / 2



	if yQ == 4 || yQ == 6 {

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

			armExtension = true

		}

	}

	return

}



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

	canvas := svg.New(w)

	canvas.Start(size, size)
@@ -188,20 +204,10 @@ func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size 
			}



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

				leftOver := squares - invader.length

				if invader.arms > 0 {

					if yQ == 4 && invader.armsUp && invader.armSize == 3 {

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

				if hasArmExtension(invader, squares, xQ, yQ) {

					fill = draw.FillFromRGBA(colorMap[xQ])

				}

			}

					if yQ == 6 && !invader.armsUp && invader.armSize == 3 {

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

							fill = draw.FillFromRGBA(colorMap[xQ])

						}

					}

				}

			}



			if yQ == 5 { // eyes

				if invader.eyes == 1 {