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Some refactor and tests

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cdricms
2024-06-27 19:13:13 +02:00
parent 8b5c2a592e
commit 8556380dba
5 changed files with 88 additions and 40 deletions
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15
Sources/Engine/Pieces/Pawn.swift
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@@ -5,15 +5,12 @@ final class Pawn: Piece {
var position: Square.Position
var pseudoLegalPositions: [Square.Position] {
let sign: Int8 = color == .Black ? -1 : 1
let rank = Int8(position.rank)
let directions: [Square.Position] = [
.init(rank: rank + 1 * sign, file: position.file),
.init(rank: rank + 2 * sign, file: position.file),
.init(rank: rank + 1 * sign, file: position.file + 1),
.init(rank: rank + 1 * sign, file: position.file - 1)
]
// TODO: Handle en passant
return directions.filter { $0.index != nil }
return [
position + (1 * sign, 0),
position + (2 * sign, 0),
position + (1 * sign, 1),
position + (1 * sign, -1)
].filter { $0.index != nil }
}
var legalPositions: [Square.Position] {
pseudoLegalPositions.filter { isLegal(on: $0) }