| Branch | Build status | Code climate | Go Report Card | Code Coverage |
|---|---|---|---|---|
| master |
This package is a chess move generator that encodes moves. It uses a hybrid of psuedo and legal moves. It has implemented state pattern (using the game state) and iterator pattern (iterating over the move list). I will be implementing a array pointer with an range as argument to directly store the moves into a stack/game tree for a speed improvement.
This package also includes a Move "class" for encoding and decoding moves and move tables for certain pieces like knights.
# Chess board layout
63 62 61 60 59 58 57 56 | 8
55 54 53 52 51 50 49 48 | 7
47 46 45 44 43 42 41 40 | 6
39 38 37 36 35 34 33 32 | 5
31 30 29 28 27 26 25 24 | 4
23 22 21 20 19 18 17 16 | 3
15 14 13 12 11 10 09 08 | 2
07 06 05 04 03 02 01 00 | 1
_________________________|
A B C D E F G H
# uint64 layout by index
A8 B8 C8 D8 ... E1 F1 G1 H1
63 62 61 60 ... 03 02 01 00
The position H1 is found at bitboard & 0x1, while A8 is found at bitboard & (0x1<<63).
package main
import mg "github.com/chessmodule/movegengo"
import "fmt"
func main() {
// For a move generator with a default game state use:
// movegen := mg.NewMoveGen()
// If you have a populated game state (mg.GameState) use:
// movegen := mg.NewMoveGenByState(gs)
movegen := mg.NewMoveGen()
movegen.GenerateMoves() // generates all the moves
for it := movegen.CreateIterator(); it.Good(); it.Next() {
mover := mg.NewMove(it.GetMove()) //GetMove returns a uint16 encoded move
fmt.Println("move: " + mover.ToStr()) // shows from and to values
}
}