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Can now initialize board with FEN

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This commit is contained in:
cdricms
2024-06-26 00:18:22 +02:00
parent c36319d4d7
commit 0ea0ec1bc6
8 changed files with 221 additions and 36 deletions
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78
Sources/Engine/Board.swift
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@@ -102,15 +102,15 @@ public class Board: CustomStringConvertible {
return board
}
public private(set) var fen =
Fen(fen: "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1")
public private(set) var fen: Fen
public func setBoard() throws -> Grid {
public func setBoard() throws {
var file: UInt8 = 1
var rank: UInt8 = 8
var index: UInt8 = 0
var b: Grid = board
var b: [Square] = squares
for c in fen.placement {
let r = (8 - Int(rank)) % 8
if c == "/" {
rank -= 1
file = 0
@@ -124,7 +124,7 @@ public class Board: CustomStringConvertible {
let f = file
for i in f..<(f + n) {
file += 1
b[rank, i-1]?.piece = nil
b[8*r+Int(i)].piece = nil
}
file -= 1
} else if c.isASCII {
@@ -134,25 +134,36 @@ public class Board: CustomStringConvertible {
switch k {
case .Pawn:
Pawn(color: c, on: .init(file: file, rank: rank))
default:
Pawn(color: c, on: .init(file: file, rank: rank))
case .Knight:
Knight(color: c, on: .init(file: file, rank: rank))
case .Bishop:
Bishop(color: c, on: .init(file: file, rank: rank))
case .Rook:
Rook(color: c, on: .init(file: file, rank: rank))
case .Queen:
Queen(color: c, on: .init(file: file, rank: rank))
case .King:
King(color: c, on: .init(file: file, rank: rank))
}
b[rank, file-1]?.piece = piece
b[8*r+Int(file)-1].piece = piece
case .none:
throw Fen.FenError.InvalidCharacter(
c: String(c), column: index)
}
}
}
file += 1
index += 1
}
return b
print(b)
squares = b
}
public required init() {
public required init(fen: Fen =
.init(fen: "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1")
) {
var rank: UInt8 = 8
self.fen = fen
for i in 0...63 {
let index = UInt8(i)
let square = Square(
@@ -164,6 +175,10 @@ public class Board: CustomStringConvertible {
rank -= 1
}
}
do {
try setBoard()
} catch {
}
}
public var description: String {
@@ -195,25 +210,26 @@ public class Board: CustomStringConvertible {
}
}
extension Board.Grid {
public subscript(rank: UInt8, file: UInt8) -> Square? {
get {
guard 1 > rank && rank < 9 && 1 > file && file < 9 else {
return nil
}
// For now useless, learn how to setup properly
// extension Board.Grid {
// public subscript(rank: UInt8, file: UInt8) -> Square? {
// get {
// guard 1 > rank && rank < 9 && 1 > file && file < 9 else {
// return nil
// }
return self[(8-Int(rank)) % 8][Int(file) - 1]
}
set {
guard 1 > rank && rank < 9 && 1 > file && file < 9 else {
return
}
// return self[(8 - Int(rank)) % 8][Int(file) - 1]
// }
// set {
// guard 1 > rank && rank < 9 && 1 > file && file < 9 else {
// return
// }
guard let n = newValue else {
return
}
// guard let n = newValue else {
// return
// }
self[(8-Int(rank)) % 8][Int(file) - 1] = n
}
}
}
// self[(8 - Int(rank)) % 8][Int(file) - 1] = n
// }
// }
// }