1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
<!DOCTYPE html>
<html lang="en">
<head>
<li><a href="index.html">Home</a></li>
<meta charset="utf-8" />
<link href='https://fonts.google.com/specimen/Taviraj?selection.family=Taviraj' rel='stylesheet' type='text/css'>
<style type="text/css">
body {
background:#4289f4;
text-align:center;
}
canvas {
background:#415ff4;
-webkit-box-shadow:0 0 20px #000;
-moz-box-shadow: 0 0 20px #000;
box-shadow:0 0 20px #000;
}
h1 { font-family: 'Cabin Sketch', arial, serif; font-size:50px;
text-indent: -100px;margin-bottom:20;margin-top:30px}
</style>
<script type="text/javascript">
/**
* @license HTML5 experiment Snake
* http://www.xarg.org/project/html5-snake/
*
* Copyright (c) 2011, Robert Eisele (robert@xarg.org)
* Dual licensed under the MIT or GPL Version 2 licenses.
**/
function init() {
var ctx;
var turn = [];
var xV = [-1, 0, 1, 0];
var yV = [0, -1, 0, 1];
var queue = [];
var elements = 1;
var map = [];
var X = 5 + (Math.random() * (45 - 10))|0;
var Y = 5 + (Math.random() * (30 - 10))|0;
var direction = Math.random() * 3 | 0;
var interval = 0;
var score = 0;
var inc_score = 50;
var sum = 0, easy = 0;
var i, dir;
var canvas = document.createElement('canvas');
for (i = 0; i < 45; i++) {
map[i] = [];
}
canvas.setAttribute('width', 45 * 10);
canvas.setAttribute('height', 30 * 10);
ctx = canvas.getContext('2d');
document.body.appendChild(canvas);
function placeFood() {
var x, y;
do {
x = Math.random() * 45|0;
y = Math.random() * 30|0;
} while (map[x][y]);
map[x][y] = 1;
ctx.strokeRect(x * 10 + 1, y * 10 + 1, 10 - 2, 10 - 2);
}
placeFood();
function clock() {
if (easy) {
X = (X+45)%45;
Y = (Y+30)%30;
}
--inc_score;
if (turn.length) {
dir = turn.pop();
if ((dir % 2) !== (direction % 2)) {
direction = dir;
}
}
if (
(easy || (0 <= X && 0 <= Y && X < 45 && Y < 30))
&& 2 !== map[X][Y]) {
if (1 === map[X][Y]) {
score+= Math.max(5, inc_score);
inc_score = 50;
placeFood();
elements++;
}
ctx.fillRect(X * 10, Y * 10, 10 - 1, 10 - 1);
map[X][Y] = 2;
queue.unshift([X, Y]);
X+= xV[direction];
Y+= yV[direction];
if (elements < queue.length) {
dir = queue.pop()
map[dir[0]][dir[1]] = 0;
ctx.clearRect(dir[0] * 10, dir[1] * 10, 10, 10);
}
} else if (!turn.length) {
if (confirm("You lost! Play again?")) {
ctx.clearRect(0, 0, 450, 300);
queue = [];
elements = 1;
map = [];
X = 5 + (Math.random() * (45 - 10))|0;
Y = 5 + (Math.random() * (30 - 10))|0;
direction = Math.random() * 3 | 0;
score = 0;
inc_score = 50;
for (i = 0; i < 45; i++) {
map[i] = [];
}
placeFood();
} else {
window.clearInterval(interval);
window.location = "/index.html";
}
}
}
interval = window.setInterval(clock, 60);
document.onkeydown = function(e) {
var code = e.keyCode - 37;
/*
* 0: left
* 1: up
* 2: right
* 3: down
**/
if (0 <= code && code < 4 && code !== turn[0]) {
turn.unshift(code);
} else if (-5 == code) {
if (interval) {
window.clearInterval(interval);
interval = null;
} else {
interval = window.setInterval(clock, 60);
}
} else { // O.o
dir = sum + code;
if (dir == 44||dir==94||dir==126||dir==171) {
sum+= code
} else if (dir === 218) easy = 1;
}
}
}
</script>
</head>
<body onload="init()">
<header><title>Hello World</title></header>
</body>
</html>
|
