refactored the project

1 files changed, 365 insertions, 0 deletions

diff --git a/public/app.js b/public/app.js
new file mode 100644
index 0000000..bbb8d4b
--- /dev/null
+++ b/public/app.js
@@ -0,0 +1,365 @@
+let board = [
+    [-3, -5, -4, -2, -1, -4, -5, -3],
+    [-6, -6, -6, -6, -6, -6, -6, -6],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [0, 0, 0, 0, 0, 0, 0, 0],
+    [6, 6, 6, 6, 6, 6, 6, 6],
+    [3, 5, 4, 2, 1, 4, 5, 3],
+]
+
+
+//console.log(move(board, 1, 0))
+//move(board, 3, 3)
+
+function move(board, y, x) {
+    let piece = Math.abs(board[y][x])
+    switch (piece) {
+        case 0:
+            return []
+        case 1:
+            return king_move(board, y, x)
+        case 2:
+            return amelia_move(board, y, x)
+        case 3:
+            return rook_move(board, y, x)
+        case 4:
+            return bishop_move(board, y, x)
+        case 5:
+            return knight_move(board, y, x)
+        case 6:
+            return pawn_move(board, y, x)
+    }
+}
+
+function pawn_move(board, y, x) {
+    let moves = []
+    let color = board[y][x] > 0
+
+    if (color) {
+        if (y == 6) {
+            if (board[y - 1][x] == 0) {
+                moves.push([y - 1, x])
+            }
+            if (board[y - 2][x] == 0) {
+                moves.push([y - 2, x])
+            }
+        } else if (color && y != 0) {
+            if (board[y - 1][x] == 0) {
+                moves.push([y - 1, x])
+            }
+        }
+
+        return moves
+    } else {
+        if (y == 1) {
+            if (board[y + 1][x] == 0) {
+                moves.push([y + 1, x])
+            }
+            if (board[y + 2][x] == 0) {
+                moves.push([y + 2, x])
+            }
+        } else if (color && y != 7) {
+            if (board[y + 1][x] == 0) {
+                moves.push([y + 1, x])
+            }
+        }
+        return moves
+    }
+}
+
+function king_move(board, y, x) {
+    let color = board[y][x] > 0
+    let moves = []
+
+    for (let i = y - 1; i <= y + 1; i += 1) {
+        for (let j = x - 1; j <= x + 1; j += 1) {
+            if ((i == y && j == x) || i < 0 || j < 0 || i >= board.length || j >= board[i].length) {
+                continue
+            }
+            if (board[i][j] == 0 || (color ^ board[i][j] > 0)) {
+                moves.push([i, j])
+            }
+        }
+    }
+
+    return moves
+}
+
+function knight_move(board, y, x) {
+    let color = board[y][x] > 0
+    let moves = []
+
+    let cand = [
+        [y + 2, x + 1],
+        [y + 2, x - 1],
+        [y + 1, x - 2],
+        [y + 1, x + 2],
+        [y - 2, x + 1],
+        [y - 2, x - 1],
+        [y - 1, x + 2],
+        [y - 1, x - 2],
+    ]
+
+    for (let k = 0; k < cand.length; k++) {
+        if (cand[k][0] < 0 || cand[k][1] < 0 || cand[k][0] >= board.length || cand[k][1] >= board[cand[k][0]].length) {
+            continue
+        }
+
+        if (board[cand[k][0]][cand[k][1]] == 0 || (color ^ board[cand[k][0]][cand[k][1]] > 0)) {
+            moves.push([cand[k][0], cand[k][1]])
+        }
+    }
+
+    return moves
+}
+
+
+function rook_move(board, y, x) {
+    let color = board[y][x] > 0
+    let moves = []
+
+    for (let i = x + 1; i < board[1].length; i++) {
+        if (board[y][i] != 0) {
+            if (color ^ board[y][i] > 0) {
+                console.log(color ^ board[y][i])
+                moves.push([y, i])
+                break
+            }
+            break
+        }
+        moves.push([y, i])
+    }
+
+    for (let i = x - 1; i >= 0; i--) {
+        if (board[y][i] != 0) {
+            if (color ^ board[y][i] > 0) {
+                moves.push([y, i])
+                break
+            }
+            break
+        }
+        moves.push([y, i])
+    }
+
+
+    for (let i = y + 1; i < board.length; i++) {
+        if (board[i][x] != 0) {
+            if (color ^ board[i][x] > 0) {
+                moves.push([i, x])
+                break
+            }
+            break
+        }
+        moves.push([i, x])
+    }
+
+    for (let i = y - 1; i >= 0; i--) {
+        if (board[i][x] != 0) {
+            if (color ^ board[i][x] > 0) {
+                moves.push([i, x])
+                break
+            }
+            break
+        }
+        moves.push([i, x])
+    }
+
+    return moves
+}
+
+function bishop_move(board, y, x) {
+    let color = board[y][x] > 0
+    let moves = []
+
+    let i = y + 1
+    let j = x + 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i += 1
+        j += 1
+    }
+
+    i = y - 1
+    j = x - 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i -= 1
+        j -= 1
+    }
+
+    i = y - 1
+    j = x + 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i -= 1
+        j += 1
+    }
+
+    i = y + 1
+    j = x - 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i += 1
+        j -= 1
+    }
+
+    return moves
+}
+
+function amelia_move(board, y, x) {
+    let color = board[y][x] > 0
+    let moves = []
+
+    for (let i = x + 1; i < board[1].length; i++) {
+        if (board[y][i] != 0) {
+            if (color ^ board[y][i] > 0) {
+                console.log(color ^ board[y][i])
+                moves.push([y, i])
+                break
+            }
+            break
+        }
+        moves.push([y, i])
+    }
+
+    for (let i = x - 1; i >= 0; i--) {
+        if (board[y][i] != 0) {
+            if (color ^ board[y][i] > 0) {
+                moves.push([y, i])
+                break
+            }
+            break
+        }
+        moves.push([y, i])
+    }
+
+
+    for (let i = y + 1; i < board.length; i++) {
+        if (board[i][x] != 0) {
+            if (color ^ board[i][x] > 0) {
+                moves.push([i, x])
+                break
+            }
+            break
+        }
+        moves.push([i, x])
+    }
+
+    for (let i = y - 1; i >= 0; i--) {
+        if (board[i][x] != 0) {
+            if (color ^ board[i][x] > 0) {
+                moves.push([i, x])
+                break
+            }
+            break
+        }
+        moves.push([i, x])
+    }
+    let i = y + 1
+    let j = x + 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i += 1
+        j += 1
+    }
+
+    i = y - 1
+    j = x - 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i -= 1
+        j -= 1
+    }
+
+    i = y - 1
+    j = x + 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i -= 1
+        j += 1
+    }
+
+    i = y + 1
+    j = x - 1
+
+    while (!(i < 0 || j < 0 || i >= board.length || j >= board[i].length)) {
+        if (board[i][j] != 0) {
+            if (color ^ board[i][j] > 0) {
+                moves.push([i, j])
+                break
+            }
+            break
+        }
+
+        moves.push([i, j])
+        i += 1
+        j -= 1
+    }
+    return moves
+}
+