mirror of
https://github.com/Cola-Echo/memory-manager-concurrent.git
synced 2026-06-06 06:35:51 +00:00
339 lines
9.3 KiB
JavaScript
339 lines
9.3 KiB
JavaScript
/**
|
|
* snake.js
|
|
* @author okaychen
|
|
* @description
|
|
* @created Fri Dec 01 2017 11:24:41 GMT+0800 (中国标准时间)
|
|
* @copyright None
|
|
* None
|
|
* @last-modified Fri Dec 01 2017 17:08:44 GMT+0800 (中国标准时间)
|
|
*/
|
|
(function () {
|
|
// Canvas & Context
|
|
var canvas;
|
|
var ctx;
|
|
// Snake
|
|
var snake;
|
|
var snake_dir;
|
|
var snake_next_dir;
|
|
var snake_speed;
|
|
// Food
|
|
var food = {
|
|
x: 0,
|
|
y: 0
|
|
};
|
|
// score
|
|
var score;
|
|
// wall
|
|
var wall;
|
|
// HTML Elements
|
|
var screen_snake;
|
|
var screen_menu;
|
|
var screen_settings;
|
|
var screen_gameover;
|
|
var button_newgame_menu;
|
|
var button_newgame_settings;
|
|
var button_newgame_gameover;
|
|
var button_setting_menu;
|
|
var button_setting_gameover;
|
|
var ele_score;
|
|
var speed_setting;
|
|
var wall_setting;
|
|
|
|
/*-------------*/
|
|
var activeDot = function (x, y) {
|
|
ctx.fillStyle = "#eee";
|
|
ctx.fillRect(x * 10, y * 10, 10, 10);
|
|
}
|
|
|
|
// changer dir
|
|
var changeDir = function (key) {
|
|
if (key == 38 && snake_dir != 2) {
|
|
snake_next_dir = 0;
|
|
} else {
|
|
if (key == 39 && snake_dir != 3) {
|
|
snake_next_dir = 1;
|
|
} else {
|
|
if (key == 40 && snake_dir != 0) {
|
|
snake_next_dir = 2;
|
|
} else {
|
|
if (key == 37 && snake_dir != 1) {
|
|
snake_next_dir = 3;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// add food
|
|
var addFood = function () {
|
|
food.x = Math.floor(Math.random() * ((canvas.width / 10) - 1));
|
|
food.y = Math.floor(Math.random() * ((canvas.height / 10) - 1));
|
|
for (var i = 0; i < snake.length; i++) {
|
|
// 如果食物被吃就增加食物
|
|
if (checkBlock(food.x, food.y, snake[i].x, snake[i].y)) {
|
|
addFood();
|
|
}
|
|
}
|
|
}
|
|
|
|
var checkBlock = function (x, y, _x, _y) {
|
|
return (x == _x && y == _y) ? true : false;
|
|
}
|
|
|
|
////////////////////////////////////////////
|
|
var altScore = function (score_val) {
|
|
ele_score.innerHTML = String(score_val);
|
|
}
|
|
////////////////////////////////////////////
|
|
var mainLoop = function () {
|
|
var _x = snake[0].x;
|
|
var _y = snake[0].y;
|
|
snake_dir = snake_next_dir;
|
|
// 0 — up 1 — right 2 — down 3 — left
|
|
switch (snake_dir) {
|
|
case 0:
|
|
_y--;
|
|
break;
|
|
case 1:
|
|
_x++;
|
|
break;
|
|
case 2:
|
|
_y++;
|
|
break;
|
|
case 3:
|
|
_x--;
|
|
break;
|
|
}
|
|
snake.pop();
|
|
snake.unshift({
|
|
x: _x,
|
|
y: _y
|
|
})
|
|
|
|
// --wall
|
|
if (wall == 1) {
|
|
if (snake[0].x < 0 || snake[0].x == canvas.width / 10 || snake[0].y < 0 || snake[0].y == canvas.height / 10) {
|
|
showScreen(3);
|
|
return;
|
|
}
|
|
} else {
|
|
// off 无墙
|
|
for (var i = 0, x = snake.length; i < x; i++) {
|
|
if (snake[i].x < 0) {
|
|
snake[i].x = snake[i].x + (canvas.width / 10);
|
|
}
|
|
if (snake[i].x == canvas.width / 10) {
|
|
snake[i].x = snake[i].x - (canvas.width / 10);
|
|
}
|
|
if (snake[i].y < 0) {
|
|
snake[i].y = snake[i].y + (canvas.height / 10);
|
|
}
|
|
if (snake[i].y == canvas.height / 10) {
|
|
snake[i].y = snake[i].y - (canvas.height / 10);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Autophagy death
|
|
for (var i = 1; i < snake.length; i++) {
|
|
if (snake[0].x == snake[i].x && snake[0].y == snake[i].y) {
|
|
showScreen(3);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Eat food
|
|
if (checkBlock(snake[0].x, snake[0].y, food.x, food.y)) {
|
|
snake[snake.length] = {
|
|
x: snake[0].x,
|
|
y: snake[0].y
|
|
};
|
|
score += 1;
|
|
altScore(score);
|
|
addFood();
|
|
activeDot(food.x, food.y);
|
|
}
|
|
|
|
// --------------------
|
|
|
|
ctx.beginPath();
|
|
ctx.fillStyle = "#111";
|
|
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
|
|
|
// --------------------
|
|
|
|
for (var i = 0; i < snake.length; i++) {
|
|
activeDot(snake[i].x, snake[i].y);
|
|
}
|
|
|
|
// --------------------
|
|
|
|
activeDot(food.x, food.y);
|
|
|
|
setTimeout(mainLoop, snake_speed);
|
|
}
|
|
|
|
var newGame = function () {
|
|
|
|
showScreen(0);
|
|
screen_snake.focus();
|
|
|
|
snake = [];
|
|
for (var i = 4; i >= 0; i--) {
|
|
snake.push({
|
|
x: i,
|
|
y: 15
|
|
});
|
|
}
|
|
|
|
snake_next_dir = 1;
|
|
|
|
score = 0;
|
|
altScore(score);
|
|
|
|
addFood();
|
|
|
|
canvas.onkeydown = function (evt) {
|
|
evt = evt || window.event;
|
|
changeDir(evt.keyCode);
|
|
}
|
|
mainLoop();
|
|
|
|
}
|
|
|
|
|
|
// Change the snake speed...
|
|
// 150 = slow
|
|
// 100 = normal
|
|
// 50 = fast
|
|
var setSnakeSpeed = function (speed_value) {
|
|
snake_speed = speed_value;
|
|
}
|
|
|
|
////////////////////////////////////////////
|
|
var setWall = function (wall_value) {
|
|
wall = wall_value;
|
|
if (wall == 0) {
|
|
screen_snake.style.borderColor = '#606060';
|
|
}
|
|
if (wall == 1) {
|
|
screen_snake.style.borderColor = '#FFF';
|
|
}
|
|
}
|
|
|
|
// 0 show the game (canvas)
|
|
// 1 show the main menu
|
|
// 2 show the settings menu
|
|
// 3 show the gameover menu
|
|
var showScreen = function (screen_opt) {
|
|
switch (screen_opt) {
|
|
case 0:
|
|
screen_snake.style.display = "block";
|
|
screen_menu.style.display = "none";
|
|
screen_settings.style.display = "none";
|
|
screen_gameover.style.display = "none";
|
|
break;
|
|
case 1:
|
|
screen_snake.style.display = "none";
|
|
screen_menu.style.display = "block";
|
|
screen_settings.style.display = "none";
|
|
screen_gameover.style.display = "none";
|
|
break;
|
|
case 2:
|
|
screen_snake.style.display = "none";
|
|
screen_menu.style.display = "none";
|
|
screen_settings.style.display = "block";
|
|
screen_gameover.style.display = "none";
|
|
break;
|
|
case 3:
|
|
screen_snake.style.display = "none";
|
|
screen_menu.style.display = "none";
|
|
screen_settings.style.display = "none";
|
|
screen_gameover.style.display = "block";
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
window.onload = function () {
|
|
canvas = document.getElementById('snake');
|
|
ctx = canvas.getContext('2d');
|
|
// Screen
|
|
screen_snake = document.getElementById('snake');
|
|
screen_menu = document.getElementById('menu');
|
|
screen_gameover = document.getElementById('gameOver');
|
|
screen_settings = document.getElementById('settings');
|
|
// Buttons
|
|
button_newgame_menu = document.getElementById('newgame_menu');
|
|
button_newgame_setting = document.getElementById('newgame_setting');
|
|
button_newgame_gameover = document.getElementById('newgame_gameOver');
|
|
button_setting_menu = document.getElementById('setting_menu');
|
|
button_setting_gameover = document.getElementById('setting_gameOver');
|
|
// etc
|
|
ele_score = document.getElementById('score_value');
|
|
speed_setting = document.getElementsByName('speed');
|
|
wall_setting = document.getElementsByName('wall');
|
|
|
|
// -------------
|
|
button_newgame_menu.onclick = function () {
|
|
newGame();
|
|
};
|
|
button_newgame_gameover.onclick = function () {
|
|
newGame();
|
|
};
|
|
button_newgame_setting.onclick = function () {
|
|
newGame();
|
|
};
|
|
button_setting_menu.onclick = function () {
|
|
showScreen(2);
|
|
};
|
|
button_setting_gameover.onclick = function () {
|
|
showScreen(2)
|
|
};
|
|
|
|
setSnakeSpeed(150);
|
|
setWall(1);
|
|
|
|
showScreen("menu");
|
|
|
|
// --------------------
|
|
// Settings
|
|
|
|
// speed
|
|
for (var i = 0; i < speed_setting.length; i++) {
|
|
speed_setting[i].addEventListener("click", function () {
|
|
for (var i = 0; i < speed_setting.length; i++) {
|
|
if (speed_setting[i].checked) {
|
|
setSnakeSpeed(speed_setting[i].value);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
// wall
|
|
for (var i = 0; i < wall_setting.length; i++) {
|
|
wall_setting[i].addEventListener("click", function () {
|
|
for (var i = 0; i < wall_setting.length; i++) {
|
|
if (wall_setting[i].checked) {
|
|
setWall(wall_setting[i].value);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
document.onkeydown = function (evt) {
|
|
if (screen_gameover.style.display == "block") {
|
|
evt = evt || window.event;
|
|
if (evt.keyCode == 32) {
|
|
newGame();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
})()
|
|
|
|
|
|
|