572 lines
18 KiB
Go
572 lines
18 KiB
Go
package tabula
|
|
|
|
import (
|
|
"log"
|
|
"sort"
|
|
"sync"
|
|
)
|
|
|
|
var (
|
|
WeightBlot = 1.0
|
|
WeightHit = -1.0
|
|
WeightOppScore = -0.5
|
|
)
|
|
|
|
const (
|
|
SpaceHomePlayer = 0
|
|
SpaceHomeOpponent = 25
|
|
SpaceBarPlayer = 26
|
|
SpaceBarOpponent = 27
|
|
SpaceRoll1 = 28
|
|
SpaceRoll2 = 29
|
|
SpaceRoll3 = 30
|
|
SpaceRoll4 = 31
|
|
)
|
|
|
|
const (
|
|
boardSpaces = 32
|
|
)
|
|
|
|
type probabilityTable struct {
|
|
Roll1 int
|
|
Roll2 int
|
|
Chance float64
|
|
}
|
|
|
|
var rollProbabilities = []*probabilityTable{
|
|
{1, 1, 1.0},
|
|
{1, 2, 2.0},
|
|
{1, 3, 2.0},
|
|
{1, 4, 2.0},
|
|
{1, 5, 2.0},
|
|
{1, 6, 2.0},
|
|
{2, 2, 1.0},
|
|
{2, 3, 2.0},
|
|
{2, 4, 2.0},
|
|
{2, 5, 2.0},
|
|
{2, 6, 2.0},
|
|
{3, 3, 1.0},
|
|
{3, 4, 2.0},
|
|
{3, 5, 2.0},
|
|
{3, 6, 2.0},
|
|
{4, 4, 1.0},
|
|
{4, 5, 2.0},
|
|
{4, 6, 2.0},
|
|
{5, 5, 1.0},
|
|
{5, 6, 2.0},
|
|
{6, 6, 1.0},
|
|
}
|
|
|
|
// Board represents the state of a game. It contains spaces for the checkers,
|
|
// as well as four "spaces" which contain the available die rolls.
|
|
type Board [boardSpaces]int8
|
|
|
|
// NewBoard returns a new board with checkers placed in their starting positions.
|
|
func NewBoard() Board {
|
|
return Board{0, -2, 0, 0, 0, 0, 5, 0, 3, 0, 0, 0, -5, 5, 0, 0, 0, -3, 0, -5, 0, 0, 0, 0, 2, 0, 0, 0}
|
|
}
|
|
|
|
func (b Board) SetValue(space int, value int8) Board {
|
|
b[space] = value
|
|
return b
|
|
}
|
|
|
|
// Move moves a checker on the board.
|
|
func (b Board) Move(from int, to int, player int) Board {
|
|
if b[from] == 0 || (player == 1 && b[from] < 0) || (player == 2 && b[from] > 0) {
|
|
log.Panic("illegal move: no from checker", from, to, player)
|
|
} else if b[to] != 0 {
|
|
if (player == 1 && b[to] == -1) || (player == 2 && b[to] == 1) {
|
|
b[to] = 0
|
|
if player == 1 {
|
|
b[SpaceBarOpponent] -= 1
|
|
} else {
|
|
b[SpaceBarPlayer] += 1
|
|
}
|
|
} else if (player == 1 && b[to] < 0) || (player == 2 && b[to] > 0) {
|
|
b.Print()
|
|
log.Panic("illegal move: existing checkers at to space", from, to, player, b[to])
|
|
}
|
|
}
|
|
delta := int8(1)
|
|
if player == 2 {
|
|
delta = int8(-1)
|
|
}
|
|
b[from], b[to] = b[from]-delta, b[to]+delta
|
|
return b
|
|
}
|
|
|
|
// Checkers returns the number of checkers at a space. It always returns a positive number.
|
|
func (b Board) Checkers(space int, player int) int8 {
|
|
v := b[space]
|
|
if player == 1 && v > 0 {
|
|
return v
|
|
} else if player == 2 && v < 0 {
|
|
return v * -1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func (b Board) MayBearOff(player int) bool {
|
|
homeStart := 1
|
|
homeEnd := 6
|
|
barSpace := SpaceBarPlayer
|
|
if player == 2 {
|
|
homeStart = 19
|
|
homeEnd = 24
|
|
barSpace = SpaceBarOpponent
|
|
}
|
|
if b.Checkers(barSpace, player) != 0 {
|
|
return false
|
|
}
|
|
for space := 1; space < 25; space++ {
|
|
if space >= homeStart && space <= homeEnd {
|
|
continue
|
|
} else if b.Checkers(space, player) != 0 {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// HaveRoll returns whether the player has a sufficient die roll for the specified move.
|
|
func (b Board) HaveRoll(from int, to int, player int) bool {
|
|
delta := int8(spaceDiff(from, to))
|
|
if delta == 0 {
|
|
return false
|
|
}
|
|
playerDelta := -1
|
|
playerHomeEnd := 6
|
|
if player == 2 {
|
|
playerDelta = 1
|
|
playerHomeEnd = 19
|
|
}
|
|
if b.MayBearOff(player) {
|
|
allowGreater := true
|
|
for checkSpace := int8(0); checkSpace < 6-delta; checkSpace++ {
|
|
if b.Checkers(playerHomeEnd+int(checkSpace)*playerDelta, player) != 0 {
|
|
allowGreater = false
|
|
break
|
|
}
|
|
}
|
|
if allowGreater {
|
|
return (b[SpaceRoll1] >= delta || b[SpaceRoll2] >= delta || b[SpaceRoll3] >= delta || b[SpaceRoll4] >= delta)
|
|
}
|
|
}
|
|
return (b[SpaceRoll1] == delta || b[SpaceRoll2] == delta || b[SpaceRoll3] == delta || b[SpaceRoll4] == delta)
|
|
}
|
|
|
|
// UseRoll uses a die roll.
|
|
func (b Board) UseRoll(from int, to int, player int) Board {
|
|
delta := int8(spaceDiff(from, to))
|
|
if delta == 0 {
|
|
b.Print()
|
|
log.Panic("unknown space diff", from, to, player)
|
|
}
|
|
playerDelta := -1
|
|
playerHomeEnd := 6
|
|
if player == 2 {
|
|
playerDelta = 1
|
|
playerHomeEnd = 19
|
|
}
|
|
var allowGreater bool
|
|
if b.MayBearOff(player) {
|
|
allowGreater = true
|
|
for checkSpace := int8(0); checkSpace < 6-delta; checkSpace++ {
|
|
if b.Checkers(playerHomeEnd+int(checkSpace)*playerDelta, player) != 0 {
|
|
allowGreater = false
|
|
break
|
|
}
|
|
}
|
|
}
|
|
if allowGreater {
|
|
switch {
|
|
case b[SpaceRoll1] >= delta:
|
|
b[SpaceRoll1] = 0
|
|
case b[SpaceRoll2] >= delta:
|
|
b[SpaceRoll2] = 0
|
|
case b[SpaceRoll3] >= delta:
|
|
b[SpaceRoll3] = 0
|
|
case b[SpaceRoll4] >= delta:
|
|
b[SpaceRoll4] = 0
|
|
default:
|
|
b.Print()
|
|
log.Panic("no available roll for move", from, to, player)
|
|
}
|
|
} else {
|
|
switch {
|
|
case b[SpaceRoll1] == delta:
|
|
b[SpaceRoll1] = 0
|
|
case b[SpaceRoll2] == delta:
|
|
b[SpaceRoll2] = 0
|
|
case b[SpaceRoll3] == delta:
|
|
b[SpaceRoll3] = 0
|
|
case b[SpaceRoll4] == delta:
|
|
b[SpaceRoll4] = 0
|
|
default:
|
|
b.Print()
|
|
log.Panic("no available roll for move", from, to, player)
|
|
}
|
|
}
|
|
return b
|
|
}
|
|
|
|
// Available returns legal moves available.
|
|
func (b Board) Available(player int) [][]int {
|
|
barSpace := SpaceBarPlayer
|
|
opponentBarSpace := SpaceBarOpponent
|
|
if player == 2 {
|
|
barSpace = SpaceBarOpponent
|
|
opponentBarSpace = SpaceBarPlayer
|
|
}
|
|
mayBearOff := b.MayBearOff(player)
|
|
onBar := b[barSpace] != 0
|
|
var moves [][]int
|
|
for from := 0; from < 28; from++ {
|
|
if from == SpaceHomePlayer || from == SpaceHomeOpponent || from == opponentBarSpace || b.Checkers(from, player) == 0 || (onBar && from != barSpace) {
|
|
continue
|
|
}
|
|
if player == 1 {
|
|
for to := 0; to < from; to++ {
|
|
if to == SpaceBarPlayer || to == SpaceBarOpponent || to == SpaceHomeOpponent || (to == SpaceHomePlayer && !mayBearOff) {
|
|
continue
|
|
}
|
|
v := b[to]
|
|
if (player == 1 && v < -1) || (player == 2 && v > 1) || !b.HaveRoll(from, to, player) {
|
|
continue
|
|
}
|
|
moves = append(moves, []int{from, to})
|
|
}
|
|
} else { // TODO clean up
|
|
start := from + 1
|
|
if from == SpaceBarOpponent {
|
|
start = 0
|
|
}
|
|
for to := start; to <= 25; to++ {
|
|
if to == SpaceBarPlayer || to == SpaceBarOpponent || to == SpaceHomeOpponent || (to == SpaceHomeOpponent && !mayBearOff) {
|
|
continue
|
|
}
|
|
v := b[to]
|
|
if (player == 1 && v < -1) || (player == 2 && v > 1) || !b.HaveRoll(from, to, player) {
|
|
continue
|
|
}
|
|
moves = append(moves, []int{from, to})
|
|
}
|
|
}
|
|
}
|
|
return moves
|
|
}
|
|
|
|
func (b Board) Pips(player int) int {
|
|
var pips float64
|
|
var spaceValue float64
|
|
if player == 1 {
|
|
pips += float64(b.Checkers(SpaceBarPlayer, player)) * 25
|
|
} else {
|
|
pips += float64(b.Checkers(SpaceBarOpponent, player)) * 25
|
|
}
|
|
for space := 1; space < 25; space++ {
|
|
if player == 1 {
|
|
spaceValue = float64(space)
|
|
if space <= 6 {
|
|
spaceValue /= 4
|
|
} else {
|
|
spaceValue += 6
|
|
}
|
|
} else {
|
|
spaceValue = float64(25 - space)
|
|
if space >= 19 {
|
|
spaceValue /= 4
|
|
} else {
|
|
spaceValue += 6
|
|
}
|
|
}
|
|
pips += float64(b.Checkers(space, player)) * spaceValue
|
|
}
|
|
return int(pips)
|
|
}
|
|
|
|
func (b Board) Blots(player int) int {
|
|
var pips int
|
|
var spaceValue int
|
|
for space := 1; space < 25; space++ {
|
|
checkers := b.Checkers(space, player)
|
|
if checkers != 1 {
|
|
continue
|
|
}
|
|
if player == 1 {
|
|
spaceValue = 25 - space
|
|
} else {
|
|
spaceValue = space
|
|
}
|
|
pips += int(checkers) * spaceValue
|
|
}
|
|
return pips
|
|
}
|
|
|
|
func (b Board) Score(player int, hitScore int) float64 {
|
|
pips := b.Pips(player)
|
|
blots := b.Blots(player)
|
|
return float64(pips) + float64(blots)*WeightBlot + float64(hitScore)*WeightHit
|
|
}
|
|
|
|
func (b Board) evaluate(player int, hitScore int, a *Analysis) {
|
|
pips := b.Pips(player)
|
|
blots := b.Blots(player)
|
|
score := float64(pips) + float64(blots)*WeightBlot + float64(hitScore)*WeightHit
|
|
a.Pips = pips
|
|
a.Blots = blots
|
|
a.Hits = hitScore
|
|
a.PlayerScore = score
|
|
}
|
|
|
|
func (b Board) Evaluation(player int, hitScore int, moves [][]int) *Analysis {
|
|
pips := b.Pips(player)
|
|
blots := b.Blots(player)
|
|
score := float64(pips) + float64(blots)*WeightBlot + float64(hitScore)*WeightHit
|
|
return &Analysis{
|
|
Board: b,
|
|
Moves: moves,
|
|
Pips: pips,
|
|
Blots: blots,
|
|
Hits: hitScore,
|
|
PlayerScore: score,
|
|
}
|
|
}
|
|
|
|
func queueAnalysis(a *Analysis, w *sync.WaitGroup, b Board, player int, available [][]int, moves [][]int, found *[][][]int, result *[]*Analysis, resultMutex *sync.Mutex) {
|
|
var hs int
|
|
for _, move := range available {
|
|
move := move
|
|
go func() {
|
|
newMoves := append(append([][]int{}, moves...), move)
|
|
|
|
resultMutex.Lock()
|
|
for _, f := range *found {
|
|
if movesEqual(f, newMoves) {
|
|
resultMutex.Unlock()
|
|
w.Done()
|
|
return
|
|
}
|
|
}
|
|
*found = append(*found, newMoves)
|
|
resultMutex.Unlock()
|
|
|
|
checkers := b.Checkers(move[1], opponent(player))
|
|
hs = 0
|
|
if checkers == 1 {
|
|
if player == 1 {
|
|
hs = move[1]
|
|
} else {
|
|
hs = 25 - move[1]
|
|
}
|
|
}
|
|
|
|
a := &Analysis{
|
|
Board: b.Move(move[0], move[1], player).UseRoll(move[0], move[1], player),
|
|
Moves: newMoves,
|
|
player: player,
|
|
hitScore: hs,
|
|
}
|
|
a.Board.evaluate(player, hs, a)
|
|
|
|
available := a.Board.Available(player)
|
|
w.Add(len(available))
|
|
queueAnalysis(a, w, a.Board, player, available, a.Moves, found, result, resultMutex)
|
|
|
|
resultMutex.Lock()
|
|
*result = append(*result, a)
|
|
resultMutex.Unlock()
|
|
w.Done()
|
|
}()
|
|
}
|
|
}
|
|
|
|
func (b Board) Analyze(player int, available [][]int) []*Analysis {
|
|
if len(available) == 0 {
|
|
return nil
|
|
}
|
|
|
|
const bufferSize = 128
|
|
var found [][][]int
|
|
w := &sync.WaitGroup{}
|
|
result := make([]*Analysis, 0, bufferSize)
|
|
resultMutex := &sync.Mutex{}
|
|
|
|
a := &Analysis{}
|
|
b.evaluate(player, 0, a)
|
|
|
|
w.Add(len(available))
|
|
queueAnalysis(a, w, b, player, available, nil, &found, &result, resultMutex)
|
|
w.Wait()
|
|
|
|
var maxMoves int
|
|
for i := range result {
|
|
l := len(result[i].Moves)
|
|
if l > maxMoves {
|
|
maxMoves = l
|
|
}
|
|
}
|
|
var newResult []*Analysis
|
|
for i := 0; i < len(result); i++ {
|
|
if len(result[i].Moves) == maxMoves {
|
|
newResult = append(newResult, result[i])
|
|
}
|
|
}
|
|
result = newResult
|
|
if player == 1 {
|
|
oppResults := make([][]*Analysis, len(result))
|
|
w.Add(len(result) * 21)
|
|
for i := range result {
|
|
i := i
|
|
oppResultMutex := &sync.Mutex{}
|
|
oppResults[i] = make([]*Analysis, 0, bufferSize)
|
|
for j := 0; j < 21; j++ {
|
|
j := j
|
|
go func() {
|
|
check := rollProbabilities[j]
|
|
bc := Board{}
|
|
bc = result[i].Board
|
|
bc[SpaceRoll1], bc[SpaceRoll2] = int8(check.Roll1), int8(check.Roll2)
|
|
if int8(check.Roll1) == int8(check.Roll2) {
|
|
bc[SpaceRoll3], bc[SpaceRoll4] = int8(check.Roll1), int8(check.Roll2)
|
|
}
|
|
available := bc.Available(2)
|
|
w.Add(len(available))
|
|
queueAnalysis(a, w, bc, 2, available, nil, &[][][]int{}, &oppResults[i], oppResultMutex)
|
|
w.Done()
|
|
}()
|
|
}
|
|
}
|
|
w.Wait()
|
|
|
|
for i := range result {
|
|
var oppPips float64
|
|
var oppBlots float64
|
|
var oppHits float64
|
|
var oppScore float64
|
|
var count float64
|
|
for _, r := range oppResults[i] {
|
|
oppPips += float64(r.Pips)
|
|
oppBlots += float64(r.Blots)
|
|
oppHits += float64(r.Hits)
|
|
oppScore += r.PlayerScore
|
|
count++
|
|
}
|
|
result[i].OppPips = (oppPips / count)
|
|
result[i].OppBlots = (oppBlots / count)
|
|
result[i].OppHits = (oppHits / count)
|
|
result[i].OppScore = (oppScore / count)
|
|
result[i].Score = result[i].PlayerScore + result[i].OppScore*WeightOppScore
|
|
}
|
|
}
|
|
sort.Slice(result, func(i, j int) bool {
|
|
return result[i].Score < result[j].Score
|
|
})
|
|
return result
|
|
}
|
|
|
|
func (b Board) Print() {
|
|
log.Printf("%+v", b)
|
|
}
|
|
|
|
func opponent(player int) int {
|
|
if player == 1 {
|
|
return 2
|
|
} else {
|
|
return 1
|
|
}
|
|
}
|
|
|
|
func spaceDiff(from int, to int) int {
|
|
if from < 0 || from > 27 || to < 0 || to > 27 {
|
|
return 0
|
|
} else if to == SpaceBarPlayer || to == SpaceBarOpponent {
|
|
return 0
|
|
} else if from == SpaceHomePlayer || from == SpaceHomeOpponent {
|
|
return 0
|
|
}
|
|
|
|
if (from == SpaceBarPlayer || from == SpaceBarOpponent) && (to == SpaceBarPlayer || to == SpaceBarOpponent || to == SpaceHomePlayer || to == SpaceHomeOpponent) {
|
|
return 0
|
|
}
|
|
|
|
if from == SpaceBarPlayer {
|
|
return 25 - to
|
|
} else if from == SpaceBarOpponent {
|
|
return to
|
|
}
|
|
|
|
if to == SpaceHomePlayer {
|
|
return from
|
|
} else if to == SpaceHomeOpponent {
|
|
return 25 - from
|
|
}
|
|
|
|
diff := to - from
|
|
if diff < 0 {
|
|
return diff * -1
|
|
}
|
|
return diff
|
|
}
|
|
|
|
func movesEqual(a [][]int, b [][]int) bool {
|
|
l := len(a)
|
|
if len(b) != l {
|
|
return false
|
|
}
|
|
for _, m := range a {
|
|
switch m[0] {
|
|
case SpaceBarPlayer, SpaceBarOpponent:
|
|
return false
|
|
}
|
|
switch m[1] {
|
|
case SpaceHomePlayer, SpaceHomeOpponent:
|
|
return false
|
|
}
|
|
}
|
|
switch l {
|
|
case 0:
|
|
return true
|
|
case 1:
|
|
return a[0][0] == b[0][0] && a[0][1] == b[0][1]
|
|
case 2:
|
|
return (a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1]) || // 1, 2
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1]) // 2, 1
|
|
case 3:
|
|
return (a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1]) || // 1, 2, 3
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1]) || // 2, 3, 1
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1]) || // 3, 1, 2
|
|
(a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1]) || // 1, 3, 2
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1]) || // 2, 1, 3
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1]) // 3, 2, 1
|
|
case 4:
|
|
return (a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1] && a[3][0] == b[3][0] && a[3][1] == b[3][1]) || // 1,2,3,4
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1] && a[3][0] == b[3][0] && a[3][1] == b[3][1]) || // 2,1,3,4
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1] && a[3][0] == b[3][0] && a[3][1] == b[3][1]) || // 3,1,2,4
|
|
(a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1] && a[3][0] == b[3][0] && a[3][1] == b[3][1]) || // 1,3,2,4
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1] && a[3][0] == b[3][0] && a[3][1] == b[3][1]) || // 2,3,1,4
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1] && a[3][0] == b[3][0] && a[3][1] == b[3][1]) || // 3,2,1,4
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[3][0] && a[2][1] == b[3][1] && a[3][0] == b[0][0] && a[3][1] == b[0][1]) || // 3,2,4,1
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[3][0] && a[2][1] == b[3][1] && a[3][0] == b[0][0] && a[3][1] == b[0][1]) || // 2,3,4,1
|
|
(a[0][0] == b[3][0] && a[0][1] == b[3][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1] && a[3][0] == b[0][0] && a[3][1] == b[0][1]) || // 4,3,2,1
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[3][0] && a[1][1] == b[3][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1] && a[3][0] == b[0][0] && a[3][1] == b[0][1]) || // 3,4,2,1
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[3][0] && a[1][1] == b[3][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1] && a[3][0] == b[0][0] && a[3][1] == b[0][1]) || // 2,4,3,1
|
|
(a[0][0] == b[3][0] && a[0][1] == b[3][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1] && a[3][0] == b[0][0] && a[3][1] == b[0][1]) || // 4,2,3,1
|
|
(a[0][0] == b[3][0] && a[0][1] == b[3][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1] && a[3][0] == b[1][0] && a[3][1] == b[1][1]) || // 4,1,3,2
|
|
(a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[3][0] && a[1][1] == b[3][1] && a[2][0] == b[2][0] && a[2][1] == b[2][1] && a[3][0] == b[1][0] && a[3][1] == b[1][1]) || // 1,4,3,2
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[3][0] && a[1][1] == b[3][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1] && a[3][0] == b[1][0] && a[3][1] == b[1][1]) || // 3,4,1,2
|
|
(a[0][0] == b[3][0] && a[0][1] == b[3][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1] && a[3][0] == b[1][0] && a[3][1] == b[1][1]) || // 4,3,1,2
|
|
(a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[2][0] && a[1][1] == b[2][1] && a[2][0] == b[3][0] && a[2][1] == b[3][1] && a[3][0] == b[1][0] && a[3][1] == b[1][1]) || // 1,3,4,2
|
|
(a[0][0] == b[2][0] && a[0][1] == b[2][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[3][0] && a[2][1] == b[3][1] && a[3][0] == b[1][0] && a[3][1] == b[1][1]) || // 3,1,4,2
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[3][0] && a[2][1] == b[3][1] && a[3][0] == b[2][0] && a[3][1] == b[2][1]) || // 2,1,4,3
|
|
(a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[3][0] && a[2][1] == b[3][1] && a[3][0] == b[2][0] && a[3][1] == b[2][1]) || // 1,2,4,3
|
|
(a[0][0] == b[3][0] && a[0][1] == b[3][1] && a[1][0] == b[1][0] && a[1][1] == b[1][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1] && a[3][0] == b[2][0] && a[3][1] == b[2][1]) || // 4,2,1,3
|
|
(a[0][0] == b[1][0] && a[0][1] == b[1][1] && a[1][0] == b[3][0] && a[1][1] == b[3][1] && a[2][0] == b[0][0] && a[2][1] == b[0][1] && a[3][0] == b[2][0] && a[3][1] == b[2][1]) || // 2,4,1,3
|
|
(a[0][0] == b[0][0] && a[0][1] == b[0][1] && a[1][0] == b[3][0] && a[1][1] == b[3][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1] && a[3][0] == b[2][0] && a[3][1] == b[2][1]) || // 1,4,2,3
|
|
(a[0][0] == b[3][0] && a[0][1] == b[3][1] && a[1][0] == b[0][0] && a[1][1] == b[0][1] && a[2][0] == b[1][0] && a[2][1] == b[1][1] && a[3][0] == b[2][0] && a[3][1] == b[2][1]) // 4,1,2,3
|
|
default:
|
|
log.Panicf("more than 4 moves were provided: %+v %+v", a, b)
|
|
return false
|
|
}
|
|
}
|