space invaders better arms #33 (c54b5777) · Commits · blackheaven / tinygraphs

draw/spaceinvaders/spaceinvaders.go

+43 −1

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ type invader struct {
		height int
		length int
		eyes int
		armSize int
		}

		func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size int) {
		@@ -182,6 +183,21 @@ func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size
		}
		lowBodyIndex++
		}
		if yQ == 4 && invader.armsUp && invader.armSize == 3 {
		leftOver := squares - invader.length
		if invader.arms > 0 {
		if (squares - (leftOver / 2) - (leftOver / 2)) >= invader.length {
		if xQ == (leftOver/2)-2 \|\| xQ == squares-leftOver/2+1 {
		fill = fillBlack()
		}
		} else {
		if xQ == (leftOver/2)-1 \|\| xQ == squares-leftOver/2 {
		fill = fillBlack()
		}

		}
		}
		}
		if yQ == 5 && invader.armsUp {
		leftOver := squares - invader.length
		if invader.arms > 0 {
		@@ -213,6 +229,21 @@ func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size
		}
		}

		if yQ == lowBodyIndex+1 && !invader.armsUp && invader.armSize == 3 {
		leftOver := squares - invader.length
		if invader.arms > 0 {
		if (squares - leftOver/2 - (leftOver / 2) - 1) >= invader.length {
		if xQ == (leftOver/2)-2 \|\| xQ == squares-leftOver/2+1 {
		fill = fillBlack()
		}
		} else {
		if xQ == (leftOver/2)-1 \|\| xQ == squares-leftOver/2 {
		fill = fillBlack()
		}
		}
		}
		}

		if yQ == lowBodyIndex \|\| yQ == lowBodyIndex+1 { // legs
		if invader.legs%2 == 0 {
		if invader.legs == 2 {
		@@ -301,7 +332,7 @@ func SpaceInvaders(w http.ResponseWriter, key string, colors []color.RGBA, size
		canvas.End()
		}

		// key is a 16 md5 hash
		// newInvader returns a invader type built from key which is a 16 md5 hash.
		func newInvader(key string) invader {
		invader := invader{}
		var s string
		@@ -386,6 +417,17 @@ func newInvader(key string) invader {
		invader.foot = true
		}

		s = hex.EncodeToString([]byte{key[8]})
		if val, err := strconv.ParseInt(s, 16, 0); err == nil {
		if val%2 == 0 {
		invader.armSize = 2
		} else {
		invader.armSize = 3
		}
		} else {
		invader.foot = true
		}

		return invader
		}