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-rw-r--r--draughts/public/javascripts/board.js214
1 files changed, 68 insertions, 146 deletions
diff --git a/draughts/public/javascripts/board.js b/draughts/public/javascripts/board.js
index 13b15a0..a057f1f 100644
--- a/draughts/public/javascripts/board.js
+++ b/draughts/public/javascripts/board.js
@@ -1,162 +1,84 @@
-var board = new Array(10).fill(null).map(()=>new Array(10).fill(null));
-
-
-var start = function(){
- // set up blue pieces
- let blueCount = 1;
- for (var i = 0; i < 4; i++){
- if (i % 2 == 0){
- for (var j = 0; j < board[i].length; j += 2){
- board[i][j] = new Piece(blueCount, i, j, blue);
- blueCount++;
- }
- } else {
- for (var j = 1; j < board[i].length; j += 2) {
- board[i][j] = new Piece(blueCount, i, j, blue);
- blueCount++;
- }
- }
- }
-
- // set up red pieces
- let redCount = 1;
- for (var i = 6; i < 10; i++){
- if (i % 2 == 0){
- for (var j = 0; j < board[i].length; j += 2){
- board[i][j] = new Piece(redCount, i, j, red);
- redCount++;
- }
- } else {
- for (var j = 1; j < board[i].length; j += 2) {
- board[i][j] = new Piece(redCount, i, j, red);
- redCount++;
- }
- }
- }
-
- return board;
-}
-
-function Piece(id, column, row, color){
- this.id = id;
- this.position = {column, row};
- this.color = color;
- this.king = false;
- this.selected = false;
-}
-
-Piece.prototype.getColor = function(){
- return this.color;
-}
-
-Piece.prototype.getPosition = function(){
- return this.position;
-}
-
-Piece.prototype.isKing = function(){
- return this.king;
-}
-
-Piece.prototype.setKing = function(){
- this.king = true;
-}
-
-Piece.prototype.movePiece = function(direction){
- let x = direction[0];
- let y = direction[1];
- if (x + 1 <= 9 && x - 1 >= 0 && y + 1 <= 9 && y - 1 >= 0){
- this.position = direction;
- }
+// Check if all adjacent tiles are on the board
+function directions(x, y) {
+ return forwardDirections(x, y).concat(backwardDirections(x, y));
}
-// check if all adjacent tiles are on the board
-function directions(x, y){
- return forwardDirections(x, y).concat(backwardDirections(x, y));
+function forwardDirections(x, y) {
+ let directions = [];
+ if (x + 1 <= 9) {
+ if (y + 1 <= 9)
+ directions.push(x + 1, y + 1)
+ if (y - 1 >= 0)
+ directions.push(x + 1, y - 1)
+ }
+ return directions;
}
-function forwardDirections(x, y){
- let directions = [];
- if (x + 1 <= 9){
- if (y + 1 <= 9) directions.push(x + 1, y + 1)
- if (y - 1 >= 0) directions.push(x + 1, y - 1)
- }
- return directions;
-}
-
-function backwardDirections(x, y){
- let directions = [];
- if (x - 1 >= 0){
- if (y + 1 <= 9) directions.push(x - 1, y + 1);
- if (y - 1 >= 0) directions.push(x - 1, y - 1);
- }
-
- return directions;
+function backwardDirections(x, y) {
+ let directions = [];
+ if (x - 1 >= 0) {
+ if (y + 1 <= 9)
+ directions.push(x - 1, y + 1);
+ if (y - 1 >= 0)
+ directions.push(x - 1, y - 1);
+ }
+ return directions;
}
-Piece.prototype.getPossibleMoves = function(){
- let possibleMoves = [];
- let directions = directions(this.positions[0], this.positions[1]);
- for (let i = 0; i < directions.length; i++){
- let direction = directions[i];
- let hit = checkHit(direction, piece);
- let shift = checkShift(direction, piece);
- if (hit != null){
- possibleMoves.push(hit);
- }
- if (shift != null){
- possibleMoves.pish(shift);
- }
- }
-
-
- return possibleMoves;
-}
-
-function checkShift(direction, piece){
- const delta_y = piece.getPosition[1] - direction[1];
-
- // check if it is a forward move
- if (delta_y > 0){
- // check if square is empty
- if (board[direction[0], direction[1]] == null){
- return new Move(piece, direction, null);
- }
-
- } else {
- if (piece.isKing){
- if (board[direction[0], direction[1]] == null){
- return new Move(piece, direction, null);
- }
- }
- }
+Piece.prototype.getPossibleMoves = () => {
+ let possibleMoves = [];
+ let directions = directions(this.positions[0], this.positions[1]);
+ for (let i = 0; i < directions.length; i++) {
+ let direction = directions[i];
+ let hit = checkHit(direction, piece);
+ let shift = checkShift(direction, piece);
+
+ if (hit !== null)
+ possibleMoves.push(hit);
+ if (shift !== null)
+ possibleMoves.pish(shift);
+ }
+
+
+ return possibleMoves;
+};
+
+function checkShift(direction, piece) {
+ const delta_y = piece.getPosition[1] - direction[1];
+
+ // check if it is a forward move
+ if (delta_y > 0) {
+ // check if square is empty
+ if (board[direction[0], direction[1]] === null)
+ return new Move(piece, direction, null);
+ } else if (piece.isKing && board[direction[0], direction[1]] == null)
+ return new Move(piece, direction, null);
}
-function checkHit(direction, piece){
- let hits = [];
- let opponent = board[direction[0], direction[1]];
+function checkHit(direction, piece) {
+ let hits = [];
+ let opponent = board[direction[0], direction[1]];
- // check whether the square in this direction is empty and if its an enemy piece
- if (opponent != null && opponent.getColor != piece.getColor){
- // Check whether there is a square to move to
- let delta_x = direction[0] - piece.getPosition[0];
- let delta_y = direction[1] - piece.getPosition[1];
+ // check whether the square in this direction is empty and if its an enemy piece
+ if (opponent !== null && opponent.getColor !== piece.getColor) {
+ // Check whether there is a square to move to
+ let delta_x = direction[0] - piece.getPosition[0];
+ let delta_y = direction[1] - piece.getPosition[1];
- if (board[direction[0]+ delta_x][direction[0] + delta_y] == null){
- hits.push(opponent);
+ if (board[direction[0]+ delta_x][direction[0] + delta_y] == null) {
+ hits.push(opponent);
- return new Move(piece, direction[0]+ delta_x, direction[0] + delta_y, hits)
- // TODO implement functionality for multiple hits
- }
- }
+ return new Move(piece, direction[0]+ delta_x, direction[0] + delta_y, hits)
+ // TODO implement functionality for multiple hits
+ }
+ }
}
-function Move(piece, newPosition, hits){
- this.piece = piece;
- this.newPosition = newPosition
- this.hits = hits;
+function Move(piece, newPosition, hits) {
+ this.piece = piece;
+ this.newPosition = newPosition
+ this.hits = hits;
}
-Move.prototype.getNoHits = function(){
- return hits.length;
-} \ No newline at end of file
+Move.prototype.getNoHits = () => return hits.length;