working GGS simulator in JS

games/tic-tac-toe-js/js/TicTacToe.js

@@ -0,0 +1,139 @@
+function TicTacToe() {};
+TicTacToe.prototype.init = function() {
+
+}
+
+TicTacToe.prototype.userAllowed = function(user) {
+	if(GGS.users.length <= 2) return true
+	else return false;
+}
+
+TicTacToe.prototype.userAdded = function(user) {
+	GGS.localStorage.setItem("p" + GGS.users.length + "_id", user.id);
+	
+	if (GGS.users.length == 2) {
+		GGS.world.setItem("game_board", JSON.stringify(this.newGameBoard(3)));
+		GGS.localStorage.setItem("next_player", 1);
+		this.getUser(GGS.localStorage.getItem("p1_id")).sendCommand("yourturn");
+	}
+}
+
+TicTacToe.prototype.getUser = function(user_id) {
+	for (var i=0; i < GGS.users.length; i++) {
+		if(GGS.users[i].id == user_id) {
+			return GGS.users[i];
+		}
+	}
+}
+
+TicTacToe.prototype.newGameBoard = function(rows) {
+	// Initiate game with empty rows and columns
+	var gameBoard = [];
+	for (var i=0; i < rows; i++) {
+		gameBoard[i] = [];
+		for (var j=0; j < rows; j++) {
+			gameBoard[i][j] = 0;
+		}
+	}
+	return gameBoard;
+}
+
+TicTacToe.prototype.userCommand = function(user, command, args) {
+	var nextPlayer = GGS.localStorage.getItem("next_player");
+	var p1_id = GGS.localStorage.getItem("p1_id");
+	var p2_id = GGS.localStorage.getItem("p2_id");
+	var valid = false;
+	
+	if(nextPlayer == 1 && user.id == p1_id) {
+		valid = true;
+	} else if (nextPlayer == 2 && user.id == p2_id) {
+		valid = true;
+	}
+	
+	if (valid) {
+		if (command == "set") {
+			
+			var p = nextPlayer;
+			var props = JSON.parse(args);
+			var gameBoard = JSON.parse(GGS.world.getItem("game_board"));
+			
+			if (gameBoard[props.x][props.y] == 0) {
+				gameBoard[props.x][props.y] = p;
+				GGS.world.setItem("game_board", JSON.stringify(gameBoard))
+				if (this.checkIfWon(p, gameBoard)) {
+					if (p == 1) {
+						this.getUser(p1_id).sendCommand("winner", "You win!");
+						this.getUser(p2_id).sendCommand("loser", "You lose!");									
+					} else {
+						this.getUser(p1_id).sendCommand("loser", "You lose!");				
+						this.getUser(p2_id).sendCommand("winner", "You win!");
+					}
+				}
+				
+				if (nextPlayer == 1) {
+					GGS.localStorage.setItem("next_player", 2);
+					this.getUser(p1_id).sendCommand("yourturn");
+				} else {
+					GGS.localStorage.setItem("next_player", 1);
+					this.getUser(p2_id).sendCommand("yourturn");					
+				}
+				
+			} else {
+				user.sendCommand("warning", "Already set, chose something else.");
+			}
+		} else throw "TTTS: Unknown command " + command;		
+	} else {
+		user.sendCommand("warning", "Not your turn!");
+	}
+}
+
+TicTacToe.prototype.checkIfWon = function(player, gameBoard) {
+
+	var rows = gameBoard.length;
+
+	for (i = 0; i < rows; ++i) {
+		for (j = 0; j < rows; ++j) {
+			if (gameBoard[i][j] != player) {
+				break;
+			}
+		}
+		if (j == rows) {
+			return true;
+		}
+
+		for (j = 0; j < rows; ++j) {
+			if (gameBoard[j][i] != player) {
+				break;
+			}
+		}
+		if (j == rows) {
+			return true;			
+		}
+	}
+	
+	// Now check diagnols
+	for (i = 0; i < rows; ++i) {
+		if (gameBoard[i][i] != player) {
+			break;			
+		}
+	}
+	
+	if (i == rows) {
+		return true;		
+	}
+	
+	for (i = 0; i < rows; ++i) {
+		if (gameBoard[i][rows - i - 1] != player) {
+			break;			
+		}
+	}
+	if (i == rows) {
+		return true;
+	}
+	
+	return false;
+}
+
+function main() {
+	return new TicTacToe();
+}