trying to visualize bot direction

spectator.go

@@ -9,12 +9,10 @@ import (
 	"bitbucket.org/hackerbots/server"
 )
 
-var bots = []rune{
-	'｡', 'ｦ', 'ｧ', 'ｨ', 'ｩ', 'ｪ', 'ｫ', 'ｬ', 'ｭ', 'ｮ', 'ｯ', 'ｰ', 'ｱ', 'ｲ', 'ｳ',
-	'ｴ', 'ｵ', 'ｶ', 'ｷ', 'ｸ', 'ｹ', 'ｺ', 'ｻ', 'ｼ', 'ｽ', 'ｾ', 'ｿ', 'ﾀ', 'ﾁ', 'ﾂ',
-	'ﾃ', 'ﾄ', 'ﾅ', 'ﾆ', 'ﾇ', 'ﾈ', 'ﾉ', 'ﾊ', 'ﾋ', 'ﾌ', 'ﾍ', 'ﾎ', 'ﾏ', 'ﾐ', 'ﾑ',
-	'ﾒ', 'ﾓ', 'ﾔ', 'ﾕ', 'ﾖ', 'ﾗ', 'ﾘ', 'ﾙ', 'ﾚ', 'ﾛ', 'ﾜ', 'ﾝ', 'ﾞ', 'ﾟ',
-}
+var botDown rune = 'v'
+var botUp rune = '^'
+var botRight rune = '>'
+var botLeft rune = '<'
 
 type size struct {
 	width, height int
@@ -103,10 +101,23 @@ func (s *SimpleSpectator) Run() {
 					}
 				}
 
-				for i, bot := range u.OtherRobots {
+				for _, bot := range u.OtherRobots {
 					x := int((bot.Position.X / s.width) * float64(s.viewX))
 					y := int((bot.Position.Y / s.height) * float64(s.viewY))
-					b := bots[i%len(bots)]
+					var b rune
+					if math.Abs(bot.Heading.X) > math.Abs(bot.Heading.Y) {
+						if bot.Heading.X > 0 {
+							b = botRight
+						} else {
+							b = botLeft
+						}
+					} else {
+						if bot.Heading.Y > 0 {
+							b = botUp
+						} else {
+							b = botDown
+						}
+					}
 					c := termbox.ColorWhite
 					if bot.Health < 0 {
 						c = termbox.ColorBlack