76 lines
1.3 KiB
Go
76 lines
1.3 KiB
Go
package bgammon
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import (
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"log"
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)
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type GameState struct {
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*Game
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PlayerNumber int
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Available [][]int // Legal moves.
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}
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func (g *GameState) OpponentPlayer() Player {
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if g.PlayerNumber == 1 {
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return g.Player2
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}
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return g.Player1
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}
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func (g *GameState) LocalPlayer() Player {
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if g.PlayerNumber == 1 {
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return g.Player1
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}
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return g.Player2
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}
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func (g *GameState) SpaceAt(x int, y int) int {
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if (x < 0 || x > 12) || (y < 0 || y > 9) {
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return -1
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}
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space := -1
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if x <= 5 {
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space = x + 1
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} else if x == 6 {
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if y <= 4 {
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return SpaceBarOpponent
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} else {
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return SpaceBarPlayer
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}
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} else {
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space = x
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}
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if g.PlayerNumber == 2 {
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if y <= 4 {
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space = 25 - space
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}
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} else {
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if y <= 4 {
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space += 12
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} else {
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space = 13 - space
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}
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}
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return space
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}
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func (g *GameState) NeedRoll() bool {
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switch g.Turn {
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case 0:
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if g.PlayerNumber == 1 {
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return g.Player2.Name != "" && (g.Roll1 == 0 || (g.Roll1 == g.Roll2))
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} else if g.PlayerNumber == 2 {
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return g.Player1.Name != "" && (g.Roll2 == 0 || (g.Roll1 == g.Roll2))
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}
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return false
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case 1:
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return g.PlayerNumber == g.Turn && g.Player2.Name != "" && g.Roll1 == 0
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case 2:
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return g.PlayerNumber == g.Turn && g.Player1.Name != "" && g.Roll1 == 0
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default:
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log.Panicf("unknown turn %d", g.Turn)
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return false
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}
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}
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