refactor, add second obstacle

game/game.go

@@ -35,6 +35,10 @@ func NewState() State {
 				Lane: 0,
 				Pos:  Steps / 3,
 			},
+			{
+				Lane: 1,
+				Pos:  Steps * 2 / 3,
+			},
 		},
 	}
 }
@@ -66,6 +70,7 @@ func UpdateState(sOld State) State {
 	s := sOld
 
 	for i, t := range s.Teams {
+		accelerate(t.Baton.Holder)
 		moveBot(t.Baton.Holder, sOld)
 		maybePassBaton(&s.Teams[i])
 	}

game/physics.go

@@ -2,7 +2,7 @@ package game
 
 import "math/rand"
 
-func moveBot(b *Bot, s State) {
+func accelerate(b *Bot) {
 	if b.a == 0 {
 		b.a = 1
 	}
@@ -21,7 +21,9 @@ func moveBot(b *Bot, s State) {
 	if b.v < -maxV {
 		b.v = -maxV
 	}
+}
 
+func moveBot(b *Bot, s State) {
 	for i := 0; i < b.v; i++ {
 		if !collide(b.id, b.Pos+1, b.Lane, s) {
 			b.Pos++