forked from pixijs/pixijs
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathsrc_pixi_extras_Rope.js.html
319 lines (235 loc) · 8.22 KB
/
src_pixi_extras_Rope.js.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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>src/pixi/extras/Rope.js - Pixi.JS</title>
<link rel="stylesheet" href="http://yui.yahooapis.com/3.8.0/build/cssgrids/cssgrids-min.css">
<link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css">
<link rel="stylesheet" href="../assets/css/main.css" id="site_styles">
<link rel="shortcut icon" type="image/png" href="../assets/favicon.png">
<script src="http://yui.yahooapis.com/combo?3.8.0/build/yui/yui-min.js"></script>
</head>
<body class="yui3-skin-sam">
<div id="doc">
<div id="hd" class="yui3-g header">
<div class="yui3-u-3-4">
<h1><img src="http://www.goodboydigital.com/pixijs/logo_small.png" title="Pixi.JS"></h1>
</div>
<div class="yui3-u-1-4 version">
<em>API Docs for: 1.0.0</em>
</div>
</div>
<div id="bd" class="yui3-g">
<div class="yui3-u-1-4">
<div id="docs-sidebar" class="sidebar apidocs">
<div id="api-list">
<h2 class="off-left">APIs</h2>
<div id="api-tabview" class="tabview">
<ul class="tabs">
<li><a href="#api-classes">Classes</a></li>
<li><a href="#api-modules">Modules</a></li>
</ul>
<div id="api-tabview-filter">
<input type="search" id="api-filter" placeholder="Type to filter APIs">
</div>
<div id="api-tabview-panel">
<ul id="api-classes" class="apis classes">
<li><a href="../classes/AssetLoader.html">AssetLoader</a></li>
<li><a href="../classes/BaseTexture.html">BaseTexture</a></li>
<li><a href="../classes/CanvasRenderer.html">CanvasRenderer</a></li>
<li><a href="../classes/DisplayObject.html">DisplayObject</a></li>
<li><a href="../classes/DisplayObjectContainer.html">DisplayObjectContainer</a></li>
<li><a href="../classes/InteractionData.html">InteractionData</a></li>
<li><a href="../classes/InteractionManager.html">InteractionManager</a></li>
<li><a href="../classes/MovieClip.html">MovieClip</a></li>
<li><a href="../classes/Point.html">Point</a></li>
<li><a href="../classes/Rectangle.html">Rectangle</a></li>
<li><a href="../classes/Sprite.html">Sprite</a></li>
<li><a href="../classes/SpriteSheetLoader.html">SpriteSheetLoader</a></li>
<li><a href="../classes/Stage.html">Stage</a></li>
<li><a href="../classes/Text.html">Text</a></li>
<li><a href="../classes/Texture.html">Texture</a></li>
<li><a href="../classes/TilingSprite.html">TilingSprite</a></li>
<li><a href="../classes/WebGLBatch.html">WebGLBatch</a></li>
<li><a href="../classes/WebGLRenderer.html">WebGLRenderer</a></li>
</ul>
<ul id="api-modules" class="apis modules">
<li><a href="../modules/PIXI.html">PIXI</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div class="yui3-u-3-4">
<div id="api-options">
Show:
<label for="api-show-inherited">
<input type="checkbox" id="api-show-inherited" checked>
Inherited
</label>
<label for="api-show-protected">
<input type="checkbox" id="api-show-protected">
Protected
</label>
<label for="api-show-private">
<input type="checkbox" id="api-show-private">
Private
</label>
<label for="api-show-deprecated">
<input type="checkbox" id="api-show-deprecated">
Deprecated
</label>
</div>
<div class="apidocs">
<div id="docs-main">
<div class="content">
<h1 class="file-heading">File: src/pixi/extras/Rope.js</h1>
<div class="file">
<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/
*/
PIXI.Rope = function(texture, points)
{
PIXI.Strip.call( this, texture );
this.points = points;
try
{
this.verticies = new Float32Array( points.length * 4);
this.uvs = new Float32Array( points.length * 4);
this.colors = new Float32Array( points.length * 2);
this.indices = new Uint16Array( points.length * 2);
}
catch(error)
{
this.verticies = verticies
this.uvs = uvs
this.colors = colors
this.indices = indices
}
this.refresh();
}
// constructor
PIXI.Rope.constructor = PIXI.Rope;
PIXI.Rope.prototype = Object.create( PIXI.Strip.prototype );
PIXI.Rope.prototype.refresh = function()
{
var points = this.points;
if(points.length < 1)return;
var uvs = this.uvs
var indices = this.indices;
var colors = this.colors;
var lastPoint = points[0];
var nextPoint;
var perp = {x:0, y:0};
var point = points[0];
this.count-=0.2;
uvs[0] = 0
uvs[1] = 1
uvs[2] = 0
uvs[3] = 1
colors[0] = 1;
colors[1] = 1;
indices[0] = 0;
indices[1] = 1;
var total = points.length;
for (var i = 1; i < total; i++)
{
var point = points[i];
var index = i * 4;
// time to do some smart drawing!
var amount = i/(total-1)
if(i%2)
{
uvs[index] = amount;
uvs[index+1] = 0;
uvs[index+2] = amount
uvs[index+3] = 1
}
else
{
uvs[index] = amount
uvs[index+1] = 0
uvs[index+2] = amount
uvs[index+3] = 1
}
index = i * 2;
colors[index] = 1;
colors[index+1] = 1;
index = i * 2;
indices[index] = index;
indices[index + 1] = index + 1;
lastPoint = point;
}
}
PIXI.Rope.prototype.updateTransform = function()
{
var points = this.points;
if(points.length < 1)return;
var verticies = this.verticies
var lastPoint = points[0];
var nextPoint;
var perp = {x:0, y:0};
var point = points[0];
this.count-=0.2;
verticies[0] = point.x + perp.x
verticies[1] = point.y + perp.y //+ 200
verticies[2] = point.x - perp.x
verticies[3] = point.y - perp.y//+200
// time to do some smart drawing!
var total = points.length;
for (var i = 1; i < total; i++)
{
var point = points[i];
var index = i * 4;
if(i < points.length-1)
{
nextPoint = points[i+1];
}
else
{
nextPoint = point
}
perp.y = -(nextPoint.x - lastPoint.x);
perp.x = nextPoint.y - lastPoint.y;
var ratio = (1 - (i / (total-1))) * 10;
if(ratio > 1)ratio = 1;
var perpLength = Math.sqrt(perp.x * perp.x + perp.y * perp.y);
var num = this.texture.height/2//(20 + Math.abs(Math.sin((i + this.count) * 0.3) * 50) )* ratio;
perp.x /= perpLength;
perp.y /= perpLength;
perp.x *= num;
perp.y *= num;
verticies[index] = point.x + perp.x
verticies[index+1] = point.y + perp.y
verticies[index+2] = point.x - perp.x
verticies[index+3] = point.y - perp.y
lastPoint = point;
}
PIXI.DisplayObjectContainer.prototype.updateTransform.call( this );
}
PIXI.Rope.prototype.setTexture = function(texture)
{
// stop current texture
this.texture = texture;
this.updateFrame = true;
}
</pre>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<script src="../assets/vendor/prettify/prettify-min.js"></script>
<script>prettyPrint();</script>
<script src="../assets/js/yui-prettify.js"></script>
<script src="../assets/../api.js"></script>
<script src="../assets/js/api-filter.js"></script>
<script src="../assets/js/api-list.js"></script>
<script src="../assets/js/api-search.js"></script>
<script src="../assets/js/apidocs.js"></script>
</body>
</html>