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bundle.js
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/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, {
/******/ configurable: false,
/******/ enumerable: true,
/******/ get: getter
/******/ });
/******/ }
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 1);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var Food = function () {
function Food() {
_classCallCheck(this, Food);
this.unitSize = 20;
this.foodPos;
}
_createClass(Food, [{
key: "drawFood",
value: function drawFood(ctx) {
var foodRadius = this.unitSize / 2;
ctx.beginPath();
// make it circle, can change later
ctx.arc(this.foodPos.x * this.unitSize + this.unitSize / 2, this.foodPos.y * this.unitSize + this.unitSize / 2, foodRadius, 0, Math.PI * 2);
// ctx.fillStyle = "#3D9728";
// ctx.fillStyle = "#f1f1f1";
ctx.fillStyle = "#9FE6AC";
ctx.fill();
// ctx.strokeStyle = "#FFF";
ctx.strokeStyle = "#808080";
ctx.lineWidth = 3;
ctx.stroke();
ctx.closePath();
}
}, {
key: "drawfoodPic",
value: function drawfoodPic(ctx) {
var img = new Image();
img.src = 'p1.jpg';
// img = ctx.drawImage(img, 0, 0, this.unitSize, this.unitSize);
var that = this;
img.onload = function () {
var pattern = ctx.createPattern(img, '');
ctx.fillStyle = pattern;
ctx.fillRect(that.foodPos.x * that.unitSize, that.foodPos.y * that.unitSize, that.unitSize, that.unitSize);
};
}
}, {
key: "validFood",
value: function validFood(snake, x, y) {
for (var i = 0; i < snake.length; i++) {
if (snake[i].x === x || snake[i].y === y || snake[i].x === x && snake[i].y === y) {
return false;
}
}
return true;
}
}, {
key: "drawRandomFood",
value: function drawRandomFood(canvasWidth, canvasHeight, snake) {
var randomX = Math.floor(Math.random() * (canvasWidth / this.unitSize - 1));
var randomY = Math.floor(Math.random() * (canvasHeight / this.unitSize - 1));
// debugger
//make sure food is not generated at snake's position
while (!this.validFood(snake, randomX, randomY)) {
randomX = Math.floor(Math.random() * (canvasWidth / this.unitSize - 1));
randomY = Math.floor(Math.random() * (canvasHeight / this.unitSize - 1));
}
// for(let i = 0; i < snake.length; i++) {
// if (snake[i].x === randomX || snake[i].y === randomY || snake[i].x === randomX && snake[i].y === randomY) {
// randomX = Math.floor( Math.random() * (canvasWidth / this.unitSize));
// randomY = Math.floor( Math.random() * (canvasHeight / this.unitSize));
// }
// }
this.foodPos = { x: randomX, y: randomY };
}
}]);
return Food;
}();
exports.default = Food;
/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
var _playerGame = __webpack_require__(2);
var _playerGame2 = _interopRequireDefault(_playerGame);
var _aiGame = __webpack_require__(4);
var _aiGame2 = _interopRequireDefault(_aiGame);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var human = new _playerGame2.default();
var ai = new _aiGame2.default();
var count = 0;
var winner = void 0;
var gameRun = void 0;
function countDown(initTime, total) {
var timeText = document.getElementById("timer");
// let initTime = 10;
timeText.innerHTML = 'TIME LEFT: ' + (total - initTime);
// debugger
}
function game() {
human.gameForPlayer();
ai.gameForAI();
// debugger
// timer here, 10000 ms = 10s
// console.log(count);
// setInterval(time, 10000);
// setTimeout(time, 0);
// console.log(`After: ${count}`);
// every 10 count as 1s
// 910 ~ 1 min
if (count % 15 === 0) {
countDown(count / 15, Math.floor(910 / 15));
}
time();
// 460 for 30s
// 45
if (count === 910) {
// document.location.reload();
// this would stop the game, isntead of reload
clearInterval(gameRun);
var result = document.getElementsByClassName("result-area");
for (var i = 0; i < result.length; i++) {
if (!result[i].classList.contains("is-open")) {
result[i].classList.add("is-open");
}
}
if (human.score > ai.score) {
winner = "YOW WIN";
} else if (human.score < ai.score) {
winner = "YOU LOSE";
} else {
winner = "TIED";
}
// result[0].innerHTML = `<p>${winner}</p>
// <p>YOUR SCORE: ${human.score} POINTS</p>
// <p>AI SCORE: ${ai.score} POINTS</p>
// <button id="reset-button">OK</button>`;
result[0].innerHTML = '<p>' + winner + '</p>\n <p>' + human.score + ' POINTS : ' + ai.score + ' POINTS</p>\n <button id="reset-button">OK</button>';
var okButton = document.getElementById("reset-button");
okButton.addEventListener("click", reload);
// alert(`You score ${human.score} points vs AI: ${ai.score} points!`);
}
}
function reload() {
document.location.reload();
}
function time() {
// console.log(count);
count++;
}
var speed = 100;
var startButton = document.getElementById("start-button");
startButton.addEventListener("click", startGame);
function startGame() {
count = 0;
// countDown(10);
startButton.disabled = true;
gameRun = setInterval(game, 80);
}
/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _snake = __webpack_require__(3);
var _snake2 = _interopRequireDefault(_snake);
var _food = __webpack_require__(0);
var _food2 = _interopRequireDefault(_food);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var PlayerGame = function () {
function PlayerGame() {
_classCallCheck(this, PlayerGame);
this.snakeCanvas = document.getElementById("human-game-canvas");
this.ctx = this.snakeCanvas.getContext("2d");
this.gameViewHeight = this.snakeCanvas.height;
this.gameViewWidth = this.snakeCanvas.width;
this.score = 0;
this.speed = 100;
// document.addEventListener("keydown", this.keyDownHandler, false);
// document.addEventListener("keyup", this.keyUpHandler, false);
// this.direction = "down";
// this.rightPressed = false;
// this.leftPressed = false;
// this.upPressed = false;
// this.downPressed = false;
//
// this.snake = new Snake();
// this.food = new Food();
// this.food.drawRandomFood(this.gameViewWidth, this.gameViewHeight, this.snake);
// need to bind eventhandler
this.keyUpHandler = this.keyUpHandler.bind(this);
this.keyDownHandler = this.keyDownHandler.bind(this);
this.init();
}
// init direction
_createClass(PlayerGame, [{
key: 'init',
value: function init() {
this.direction = "down";
this.rightPressed = false;
this.leftPressed = false;
this.upPressed = false;
this.downPressed = false;
this.snake = new _snake2.default();
this.food = new _food2.default();
this.food.drawRandomFood(this.gameViewWidth, this.gameViewHeight, this.snake);
}
// check wall collision
}, {
key: 'wallCollisionCheck',
value: function wallCollisionCheck(x, y) {
// debugger;
if (x === -1 || y === -1 || x === this.gameViewWidth / this.snake.unitSize || y === this.gameViewHeight / this.snake.unitSize) {
return true;
} else {
return false;
}
}
}, {
key: 'willTouchWall',
value: function willTouchWall(x, y) {
if (x === 0 || y === 0 || x === this.gameViewWidth / this.snake.unitSize - 1 || y === this.gameViewHeight / this.snake.unitSize - 1) {
return true;
} else {
return false;
}
// debugger
}
// check body collision
}, {
key: 'bodyCollisionCheck',
value: function bodyCollisionCheck(x, y) {
for (var i = 1; i < this.snake.snakeArr.length; i++) {
if (this.snake.snakeArr[i].x === x && this.snake.snakeArr[i].y === y) {
return true;
}
}
return false;
}
}, {
key: 'drawScore',
value: function drawScore() {
this.ctx.beginPath();
this.ctx.font = "16px classic-font";
// this.ctx.fillStyle = "#0095DD";
this.ctx.fillStyle = "#fff";
this.ctx.fillText("YOUR SCORE: " + this.score, 8, 20);
this.ctx.closePath();
}
}, {
key: 'gameForPlayer',
value: function gameForPlayer() {
document.addEventListener("keydown", this.keyDownHandler, false);
document.addEventListener("keyup", this.keyUpHandler, false);
// clear the screen;
this.ctx.clearRect(0, 0, this.snakeCanvas.width, this.snakeCanvas.height);
// collision check
// if (this.bodyCollisionCheck(this.snake.headX, this.snake.headY) || this.wallCollisionCheck(this.snake.headX, this.snake.headY)) {
if (this.bodyCollisionCheck(this.snake.headX, this.snake.headY)) {
// debugger;
// comment this back later
// alert("GAME OVER");
// document.location.reload();
if (this.score > 0) {
this.score--;
}
this.snake.snakeArr.pop();
}
this.food.drawFood(this.ctx);
// food.drawfoodPic(ctx);
this.snake.drawSnake(this.ctx);
this.drawScore();
// debugger
if (this.rightPressed) {
// debugger
if (this.direction !== "left" && this.direction !== "right" && this.snake.headX < this.gameViewWidth / this.snake.unitSize - 1) {
this.direction = "right";
}
} else if (this.leftPressed) {
if (this.direction !== "right" && this.direction !== "left" && this.snake.headX > 0) {
this.direction = "left";
}
} else if (this.upPressed) {
if (this.direction !== "down" && this.direction !== "up" && this.snake.headY > 0) {
this.direction = "up";
}
} else if (this.downPressed) {
if (this.direction !== "up" && this.direction !== "down" && this.snake.headY < this.gameViewHeight / this.snake.unitSize - 1) {
this.direction = "down";
}
} else {
// this is when snake hit the wall:
// turn around if no key is pressed
if (this.direction === "right" && this.snake.headX >= this.gameViewWidth / this.snake.unitSize - 1) {
this.direction = "left";
this.snake.snakeArr = this.snake.snakeArr.reverse();
this.snake.headX = this.snake.snakeArr[0].x;
this.snake.headY = this.snake.snakeArr[0].y;
if (this.score > 0) {
this.score--;
}
this.snake.snakeArr.pop();
} else if (this.direction === "up" && this.snake.headY <= 0) {
this.direction = "down";
this.snake.snakeArr = this.snake.snakeArr.reverse();
this.snake.headX = this.snake.snakeArr[0].x;
this.snake.headY = this.snake.snakeArr[0].y;
if (this.score > 0) {
this.score--;
}
this.snake.snakeArr.pop();
} else if (this.direction === "down" && this.snake.headY >= this.gameViewHeight / this.snake.unitSize - 1) {
// debugger
this.direction = "up";
this.snake.snakeArr = this.snake.snakeArr.reverse();
this.snake.headX = this.snake.snakeArr[0].x;
this.snake.headY = this.snake.snakeArr[0].y;
if (this.score > 0) {
this.score--;
}
this.snake.snakeArr.pop();
} else if (this.direction === "left" && this.snake.headX <= 0) {
// debugger
this.direction = "right";
this.snake.snakeArr = this.snake.snakeArr.reverse();
this.snake.headX = this.snake.snakeArr[0].x;
this.snake.headY = this.snake.snakeArr[0].y;
if (this.score > 0) {
this.score--;
}
this.snake.snakeArr.pop();
}
}
this.snake.snakeMovement(this.direction);
if (this.snake.eat(this.food)) {
this.score++;
// this.speed -= 5;
this.food.drawRandomFood(this.gameViewWidth, this.gameViewHeight, this.snake);
}
}
// x === 0 || y === 0 || (x === this.gameViewWidth / this.snake.unitSize - 1) || (y === this.gameViewHeight / this.snake.unitSize -
// Use a w s d to control
}, {
key: 'keyDownHandler',
value: function keyDownHandler(e) {
// debugger
if (e.keyCode === 68 && this.direction !== "right" && this.snake.headX !== this.gameViewWidth / this.snake.unitSize - 1) {
// debugger
this.rightPressed = true;
} else if (e.keyCode === 65 && this.direction !== "left") {
this.leftPressed = true;
} else if (e.keyCode === 87 && this.direction !== "up") {
this.upPressed = true;
} else if (e.keyCode === 83 && this.direction !== "down") {
this.downPressed = true;
}
// debugger
}
}, {
key: 'keyUpHandler',
value: function keyUpHandler(e) {
if (e.keyCode === 68) {
this.rightPressed = false;
} else if (e.keyCode === 65) {
this.leftPressed = false;
} else if (e.keyCode === 87) {
this.upPressed = false;
} else if (e.keyCode === 83) {
this.downPressed = false;
}
}
}]);
return PlayerGame;
}();
exports.default = PlayerGame;
/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var Snake = function () {
function Snake() {
_classCallCheck(this, Snake);
this.snakeArr = [];
this.unitSize = 20;
this.headX = 0;
this.headY = 0;
this.initSnake();
}
_createClass(Snake, [{
key: "initSnake",
value: function initSnake() {
var length = 5;
for (var i = 0; i < length; i++) {
// snake head at index 0
this.snakeArr.unshift({ x: i, y: 0 });
}
this.headX = this.snakeArr[0].x;
this.headY = this.snakeArr[0].y;
// debugger;
}
}, {
key: "drawAUnitSquare",
value: function drawAUnitSquare(ctx, x, y) {
ctx.beginPath();
ctx.rect(x * this.unitSize, y * this.unitSize, this.unitSize, this.unitSize);
// ctx.fillStyle = "#F5FA30";
// ctx.fillStyle = "#000";
// ctx.fillStyle = "#585858";
ctx.fillStyle = "#315BCB";
ctx.fill();
// border
// ctx.strokeStyle = "red";
ctx.strokeStyle = "#FFF";
ctx.lineWidth = 3;
ctx.stroke();
ctx.closePath();
}
// draw snake body (build up by unit square)
}, {
key: "drawSnake",
value: function drawSnake(ctx) {
for (var i = 0; i < this.snakeArr.length; i++) {
this.drawAUnitSquare(ctx, this.snakeArr[i].x, this.snakeArr[i].y);
}
}
}, {
key: "snakeMovement",
value: function snakeMovement(direction) {
// update the head to get the new head
switch (direction) {
case "up":
this.headY--;
break;
case "down":
this.headY++;
break;
case "left":
this.headX--;
break;
case "right":
this.headX++;
break;
// default:
// this.headX = this.headX;
// this.headY = this.headY;
// break;
}
}
// does snake eat?
}, {
key: "eat",
value: function eat(food) {
// new head after updating headX & headY
if (this.headX === food.foodPos.x && this.headY === food.foodPos.y) {
var newHead = { x: this.headX, y: this.headY };
this.snakeArr.unshift(newHead);
return true;
} else {
// unshift new head to snakeArr
this.snakeArr.pop();
this.snakeArr.unshift({ x: this.headX, y: this.headY });
return false;
}
// debugger
}
}]);
return Snake;
}();
exports.default = Snake;
/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _snakeAI = __webpack_require__(5);
var _snakeAI2 = _interopRequireDefault(_snakeAI);
var _food = __webpack_require__(0);
var _food2 = _interopRequireDefault(_food);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var AIGame = function () {
function AIGame() {
_classCallCheck(this, AIGame);
this.snakeCanvas = document.getElementById("ai-game-canvas");
this.ctx = this.snakeCanvas.getContext("2d");
this.gameViewHeight = this.snakeCanvas.height;
this.gameViewWidth = this.snakeCanvas.width;
this.score = 0;
this.speed = 100;
this.init();
}
// init direction
_createClass(AIGame, [{
key: 'init',
value: function init() {
this.direction = "down";
this.rightPressed = false;
this.leftPressed = false;
this.upPressed = false;
this.downPressed = false;
this.snake = new _snakeAI2.default();
this.food = new _food2.default();
this.food.drawRandomFood(this.gameViewWidth, this.gameViewHeight, this.snake);
}
// check wall collision
}, {
key: 'wallCollisionCheck',
value: function wallCollisionCheck(x, y) {
// debugger;
if (x === -1 || y === -1 || x === this.gameViewWidth / this.snake.unitSize || y === this.gameViewHeight / this.snake.unitSize) {
return true;
} else {
return false;
}
}
}, {
key: 'willTouchWall',
value: function willTouchWall(x, y) {
if (x === 0 || y === 0 || x === this.gameViewWidth / this.snake.unitSize - 1 || y === this.gameViewHeight / this.snake.unitSize - 1) {
return true;
} else {
return false;
}
// debugger
}
// check body collision
}, {
key: 'bodyCollisionCheck',
value: function bodyCollisionCheck(x, y) {
for (var i = 1; i < this.snake.snakeArr.length; i++) {
if (this.snake.snakeArr[i].x === x && this.snake.snakeArr[i].y === y) {
return true;
}
}
return false;
}
}, {
key: 'drawScore',
value: function drawScore() {
this.ctx.beginPath();
this.ctx.font = "16px classic-font";
// this.ctx.fillStyle = "#0095DD";
this.ctx.fillStyle = "#fff";
this.ctx.fillText("AI SCORE: " + this.score, 8, 20);
this.ctx.closePath();
}
}, {
key: 'gameForAI',
value: function gameForAI() {
// clear the screen;
this.ctx.clearRect(0, 0, this.snakeCanvas.width, this.snakeCanvas.height);
// food.drawFood(ctx, 24, 0);
// collision check
if (this.bodyCollisionCheck(this.snake.headX, this.snake.headY) || this.wallCollisionCheck(this.snake.headX, this.snake.headY)) {
// debugger;
// comment this back later
// alert("GAME OVER");
//
// document.location.reload();
if (this.score > 0) {
// this.score--;
this.score -= 2;
}
this.snake.snakeArr.pop();
this.snake.snakeArr.pop();
}
this.food.drawFood(this.ctx);
// food.drawfoodPic(ctx);
this.snake.drawSnake(this.ctx);
this.drawScore();
// Need to implement here
// snake.snakeMovement(direction);
this.snake.move(this.food);
if (this.snake.eat(this.food)) {
this.score++;
// this.speed -= 5;
// let randomWidthX = gameViewWidth / (Math.floor( Math.random() * 4 + 1));
// let randomHeightY = gameViewWidth / (Math.floor( Math.random() * 4 + 1));
this.food.drawRandomFood(this.gameViewWidth, this.gameViewWidth, this.snake);
}
}
}]);
return AIGame;
}();
exports.default = AIGame;
/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var Snake = function () {
function Snake() {
_classCallCheck(this, Snake);
this.snakeArr = [];
this.unitSize = 20;
this.headX = 0;
this.headY = 0;
this.pos = [];
this.initSnake();
this.dir = "down";
}
_createClass(Snake, [{
key: "initSnake",
value: function initSnake() {
var length = 5;
for (var i = 0; i < length; i++) {
// snake head at index 0
this.snakeArr.unshift({ x: i, y: 0 });
// init pos
this.pos.unshift([i, 0]);
}
this.headX = this.snakeArr[0].x;
this.headY = this.snakeArr[0].y;
// debugger;
}
}, {
key: "drawAUnitSquare",
value: function drawAUnitSquare(ctx, x, y) {
ctx.beginPath();
ctx.rect(x * this.unitSize, y * this.unitSize, this.unitSize, this.unitSize);
// ctx.fillStyle = "#F5FA30";
// ctx.fillStyle = "#000";
// ctx.fillStyle = "#585858";
ctx.fillStyle = "#C33D2C";
ctx.fill();
// border
// ctx.strokeStyle = "red";
ctx.strokeStyle = "#FFF";
ctx.lineWidth = 3;
ctx.stroke();
ctx.closePath();
}
// draw snake body (build up by unit square)
}, {
key: "drawSnake",
value: function drawSnake(ctx) {
for (var i = 0; i < this.snakeArr.length; i++) {
this.drawAUnitSquare(ctx, this.snakeArr[i].x, this.snakeArr[i].y);
}
}
}, {
key: "snakeMovement",
value: function snakeMovement(direction) {
var step = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
// update the head to get the new head
this.dir = direction;
switch (direction) {
case "up":
this.headY -= step;
break;
case "down":
this.headY += step;
break;
case "left":
this.headX -= step;
break;
case "right":
this.headX += step;
break;
// default:
// this.headX = this.headX;
// this.headY = this.headY;
// break;
}
}
}, {
key: "wallRight",
value: function wallRight() {
return this.headX === 24;
}
}, {
key: "wallLeft",
value: function wallLeft() {
return this.headX === 0;
}
}, {
key: "wallTop",
value: function wallTop() {
return this.headY === 0;
}
}, {
key: "wallBottom",
value: function wallBottom() {
return this.headY === 24;
}
// check if body at right
}, {
key: "bodyAtRight",
value: function bodyAtRight(food) {
// debugger
for (var i = 1; i < this.snakeArr.length; i++) {
// check body right
if (this.snakeArr[i].x <= food.foodPos.x && this.snakeArr[i].x >= this.headX) {
// if(this.snakeArr[i].x <= food.foodPos.x && this.snakeArr[i].x === this.headX+1) {
// if(this.snakeArr[i].x >= this.headX) {
if (this.snakeArr[i].y === this.headY) {
// debugger
return true;
}
}
}
return false;
}
// check if body at left
}, {
key: "bodyAtLeft",
value: function bodyAtLeft(food) {
// debugger
for (var i = 1; i < this.snakeArr.length; i++) {
// check body left
if (this.snakeArr[i].x >= food.foodPos.x && this.snakeArr[i].x <= this.headX) {
// if(this.snakeArr[i].x >= food.foodPos.x && this.snakeArr[i].x === this.headX-1) {
// if(this.snakeArr[i].x <= this.headX) {
if (this.snakeArr[i].y === this.headY) {
return true;
}
}
}
return false;
}
// check if body at top
}, {
key: "bodyAtTop",
value: function bodyAtTop(food) {
// debugger
for (var i = 1; i < this.snakeArr.length; i++) {
// check body top
if (this.snakeArr[i].y >= food.foodPos.y && this.snakeArr[i].y <= this.headY) {
// if(this.snakeArr[i].y >= food.foodPos.y && this.snakeArr[i].y === this.headY-1) {
// if(this.snakeArr[i].y <= this.headY) {
if (this.snakeArr[i].x === this.headX) {
return true;
}
}
}
return false;
}
// check if body at bottom
}, {
key: "bodyAtBottom",
value: function bodyAtBottom(food) {
// debugger
for (var i = 1; i < this.snakeArr.length; i++) {
// check body bottom
if (this.snakeArr[i].y <= food.foodPos.y && this.snakeArr[i].y >= this.headY) {
// if(this.snakeArr[i].y <= food.foodPos.y && this.snakeArr[i].y === this.headY+1) {
// if(this.snakeArr[i].y >= this.headY) {
if (this.snakeArr[i].x === this.headX) {
return true;
}
}
}
return false;
}
}, {
key: "bounceBack",
value: function bounceBack() {}
// move for AI
}, {
key: "move",
value: function move(food) {
if (food.foodPos.x > this.headX) {
// food at right
// debugger
// moving right
if (this.dir === "right") {
if (!this.bodyAtRight(food) && !this.wallRight()) {
this.snakeMovement("right");
} else if (!this.bodyAtBottom(food) && !this.wallBottom()) {
this.snakeMovement("down");
} else if (!this.bodyAtTop(food) && !this.wallTop()) {
this.snakeMovement("up");
}
} else if (this.dir === "left") {
// moving left
if (!this.bodyAtTop(food) && !this.wallTop()) {
this.snakeMovement("up");
} else if (!this.bodyAtLeft(food) && !this.wallLeft()) {
this.snakeMovement("left");
} else if (!this.bodyAtBottom(food) && !this.wallBottom()) {
this.snakeMovement("down");
}
} else if (this.dir === "up") {
// moving up
if (!this.bodyAtRight(food) && !this.wallRight()) {
this.snakeMovement("right");
} else if (!this.bodyAtTop(food) && !this.wallTop()) {
this.snakeMovement("up");
} else if (!this.bodyAtLeft(food) && !this.wallLeft()) {