70 lines
1.1 KiB
Go
70 lines
1.1 KiB
Go
package game
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type command int
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const (
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speedUp command = iota
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slowDown
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left
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right
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clearObstacle
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)
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var validCommands = []command{speedUp, slowDown, left, right, clearObstacle}
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func doCommand(cmd command, s State, teamID int) State {
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da := 1
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//da += rand.Intn(3) - 1
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r := ActiveRacer(s.Teams[teamID])
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if r == nil {
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return s
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}
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switch cmd {
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case speedUp:
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r.Kinetics.A += da
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*r = accelerate(*r)
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s = updateRacer(s, *r)
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case slowDown:
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r.Kinetics.A -= da
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*r = accelerate(*r)
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s = updateRacer(s, *r)
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case left:
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r.Position.Lane++
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s = updateRacer(s, *r)
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case right:
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r.Position.Lane--
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s = updateRacer(s, *r)
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case clearObstacle:
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pos := r.Position
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pos.Pos++
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s = removeObstacle(s, pos)
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r.Kinetics.V = 0
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s = updateRacer(s, *r)
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}
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if r := ActiveRacer(s.Teams[teamID]); r != nil {
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s = moveRacer(s, *r)
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}
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s = maybePassBaton(s, teamID)
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return s
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}
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func (c command) String() string {
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switch c {
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case speedUp:
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return "speed up"
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case slowDown:
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return "slow down"
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case left:
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return "go left"
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case right:
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return "go right"
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case clearObstacle:
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return "clear obstacle"
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}
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return "(unknown)"
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}
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