-
Notifications
You must be signed in to change notification settings - Fork 0
/
2015-08-30.html
169 lines (162 loc) · 5.44 KB
/
2015-08-30.html
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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
<!doctype html>
<html>
<head>
<title>2015/09/03</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1">
<style>
html, body {
height: 100%;
padding: 0;
margin: 0;
}
#canvas {
display: block;
cursor: none;
height: 100%;
width: 100%;
}
.sign {
position: absolute;
bottom: 20px;
right: 20px;
font-size: 14px;
color: #666;
font-style: italic;
}
#doujia {
position: absolute;
top: 50%;
left: 50%;
font-size: 20px;
margin-left: -43px;
margin-top: -16px;
color: royalblue;
}
.help {
position: absolute;
bottom: 20px;
left: 20px;
color: tomato;
font-size: 12px;
text-decoration: underline;
}
.description {
position: absolute;
bottom: 40px;
left: 20px;
color: #666;
font-size: 12px;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<div class="sign">Beyond</div>
<div id="doujia">
Doujia<br>
I love you
</div>
<div class="description">
I apologize for this morning's bug, and this is the modified one.
</div>
<div class="help">
Wait to see the final effect or you can do other things and come back minutes later~
</div>
<div id="position">
</div>
<script type="text/javascript" src="https://code.createjs.com/easeljs-0.8.1.min.js"></script>
<script>
+function() {
var stage = new createjs.Stage("canvas");
var width = document.body.clientWidth;
var height = document.body.clientHeight;
var count = 0;
var center = {};
function Particle(radius, angle, velocity, color, x, y) {
this.x = x;
this.y = y;
this.angle = angle;
this.velocity = velocity;
this.counter = 0;
this.particle = new createjs.Shape();
this.particle.graphics.beginFill(color).drawCircle(0, 0, radius);
this.particle.x = x;
this.particle.y = y;
stage.addChild(this.particle);
return this;
}
Particle.prototype.update = function() {
this.x += Math.cos(this.angle * Math.PI / 180) * this.velocity;
this.y += Math.sin(this.angle * Math.PI / 180) * this.velocity;
this.particle.x = this.x;
this.particle.y = this.y;
this.counter++;
};
Particle.prototype.inBound = function() {
return (this.x >= 0 && this.x <= width && this.y >= 0 && this.y <= height);
};
function Emitter(angle, color) {
this.radius = 100;
this.particles = {};
this.angle = angle;
this.color = color;
var emitter = new createjs.Shape();
emitter.graphics.beginFill(color).drawCircle(0, 0, 5);
this.emitter = emitter;
this.emitter.x = center.x + this.radius * Math.cos(Math.PI * this.angle / 180);
this.emitter.y = center.y + this.radius * Math.sin(Math.PI * this.angle / 180);
stage.addChild(emitter);
}
Emitter.prototype.emit = function() {
var angle = parseInt(Math.random() * 360, 10);
var velocity = parseInt(Math.random() * 5, 10) + 2;
this.particles[count++] = new Particle(2, angle, velocity, this.color, this.emitter.x, this.emitter.y);
};
Emitter.prototype.update = function() {
// this.emitter.x = center.x + this.radius * Math.cos(Math.PI * this.angle / 180);
// this.emitter.y = center.y + this.radius * Math.sin(Math.PI * this.angle / 180);
// this.angle++;
for (var i in this.particles) {
if (!this.particles.hasOwnProperty(i)) {
continue;
}
if (!this.particles[i].inBound()) {
stage.removeChild(this.particles[i].particle);
delete this.particles[i];
}
else {
if (this.particles[i].counter <= 30) {
this.particles[i].update();
}
}
}
stage.update();
};
function init() {
var canvas = document.getElementById('canvas');
var colors = ["#00BFFF", "#FF69B4", "#3CB371", "#FFD700", "#CD5C5C", "#FF4500"];
var emitters = [];
var counter = 0;
center.x = width / 2;
center.y = height / 2;
canvas.setAttribute('width', width);
canvas.setAttribute('height', height);
createjs.Ticker.setFPS(60);
for (var i = 0; i < colors.length; i++) {
emitters.push(new Emitter(360 / colors.length * (i + 0.5), colors[i]));
}
createjs.Ticker.addEventListener("tick", function() {
counter++;
emitters.forEach(function(emitter) {
if (counter % 6 == 0) {
emitter.emit();
}
emitter.update();
})
});
}
window.onload = init;
}();
</script>
</body>
</html>