add hasArmExtension2 (5059d7d8) · Commits · blackheaven / tinygraphs

draw/spaceinvaders/spaceinvaders.go

+24 −13

Original line number	Diff line number	Diff line
		@@ -203,6 +203,28 @@ func hasArmExtension(invader invader, squares, xQ, yQ int) (armExtension bool) {
		return
		}

		func hasArmExtension2(invader invader, squares, xQ, yQ int) (armExtension bool) {
		if yQ != 4 \|\| !invader.armsUp {
		return
		}
		if invader.arms <= 0 {
		return
		}

		leftOver := squares - invader.length
		half := leftOver / 2
		if (squares - half - half - 1) >= invader.length {
		if xQ == half-1 \|\| xQ == squares-half {
		armExtension = true
		}
		} else {
		if xQ == half-2 \|\| xQ == squares+1-half {
		armExtension = true
		}
		}
		return
		}

		func hasBody(invader invader, squares, xQ int) (body bool) {
		leftOver := squares - invader.length
		half := leftOver / 2
		@@ -338,20 +360,9 @@ func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size
		}

		// arm up extension.
		if yQ == 4 && invader.armsUp {
		leftOver := squares - invader.length
		if invader.arms > 0 {
		if (squares - (leftOver / 2) - (leftOver / 2) - 1) >= invader.length {
		if xQ == (leftOver/2)-1 \|\| xQ == squares-leftOver/2 {
		if hasArmExtension2(invader, squares, xQ, yQ) {
		fill = draw.FillFromRGBA(colorMap[xQ])
		}
		} else {
		if xQ == (leftOver/2)-2 \|\| xQ == squares+1-leftOver/2 {
		fill = draw.FillFromRGBA(colorMap[xQ])
		}
		}
		}
		}

		armIndex := 0
		if invader.height > 6 {