-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathparticle_Emitter.js.html
387 lines (330 loc) · 19 KB
/
particle_Emitter.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
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Source: particle/Emitter.js</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Source: particle/Emitter.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>//------------------------------------------------------------------------------
// Constructor scope
//------------------------------------------------------------------------------
/**
* Creates a new Emitter object.
*
* @constructor
* @extends rune.display.DisplayObject
*
* @param {number} [x] The emitter x-position.
* @param {number} [y] The emitter y-position.
* @param {number} [width] The emitter width.
* @param {number} [height] The emitter height.
* @param {Object} [options] Emitter settings.
*
* @class
* @classdesc
*
* The Emitter class represents an emitter of particles; which can be used to
* create visual effects (such as smoke, explosions, etc.). An emitter is
* represented by a display object that can be added to the display list, each
* particle is its own display object, which is added to the same display list
* (parent object) as the emitter.
*/
rune.particle.Emitter = function(x, y, width, height, options) {
//--------------------------------------------------------------------------
// Protected properties
//--------------------------------------------------------------------------
/**
* Emitter settings (for particles).
*
* @type {rune.particle.EmitterOptions}
* @protected
* @ignore
*/
this.m_options = new rune.particle.EmitterOptions(options);
/**
* List containing current particles, i.e. particles created by the emitter.
* Note that the list includes inactive (and thus invisible) particles.
*
* @type {Array.<rune.particle.Particle>}
* @protected
* @ignore
*/
this.m_particles = [];
/**
* Timer object for interval functionality.
*
* @type {rune.timer.Timer}
* @protected
* @ignore
*/
this.m_timer = null;
//--------------------------------------------------------------------------
// Super call
//--------------------------------------------------------------------------
/**
* Extend rune.display.DisplayObject.
*/
rune.display.DisplayObject.call(this, x, y, width, height);
};
//------------------------------------------------------------------------------
// Inheritance
//------------------------------------------------------------------------------
rune.particle.Emitter.prototype = Object.create(rune.display.DisplayObject.prototype);
rune.particle.Emitter.prototype.constructor = rune.particle.Emitter;
//------------------------------------------------------------------------------
// Public getter and setter methods
//------------------------------------------------------------------------------
/**
* Whether the emitter creates particles via a predetermined time interval.
*
* @member {boolean} interval
* @memberof rune.particle.Emitter
* @instance
* @readonly
*/
Object.defineProperty(rune.particle.Emitter.prototype, "interval", {
/**
* @this rune.particle.Emitter
* @ignore
*/
get : function() {
return (this.m_timer != null);
}
});
/**
* The number of active particles, i.e. particles visible on the screen.
*
* @member {number} numParticles
* @memberof rune.particle.Emitter
* @instance
* @readonly
*/
Object.defineProperty(rune.particle.Emitter.prototype, "numParticles", {
/**
* @this rune.particle.Emitter
* @ignore
*/
get : function() {
var n = 0;
var i = this.m_particles.length;
while (i--) {
if (this.m_particles[i]['parent']) {
n++;
}
}
return n;
}
});
/**
* Reference to the settings object.
*
* @member {number} options
* @memberof rune.particle.Emitter
* @instance
* @readonly
*/
Object.defineProperty(rune.particle.Emitter.prototype, "options", {
/**
* @this rune.particle.Emitter
* @ignore
*/
get : function() {
return this.m_options;
}
});
//------------------------------------------------------------------------------
// Override public methods (API)
//------------------------------------------------------------------------------
/**
* Removes current (active) particles.
*
* @param {boolean} [dispose=false] Whether the particles are to be destroyed.
*
* @returns {undefined}
*/
rune.particle.Emitter.prototype.clear = function(dispose) {
var i = this.m_particles.length;
var p = null;
while (i--) {
p = this.m_particles[i];
if (p.parent !== null) {
p.parent.removeChild(p, dispose);
}
}
if (dispose == true) {
this.m_particles.length = 0;
}
};
/**
* Stops the current time interval.
*
* @param {boolean} [cleanup=false] Whether or not current particles should be removed when the interval is stopped.
* @param {boolean} [dispose=false] Whether the particle objects should be destroyed when they are removed.
*
* @returns {undefined}
* @suppress {accessControls}
*/
rune.particle.Emitter.prototype.clearInterval = function(cleanup, dispose) {
if (this.m_timer instanceof rune.timer.Timer) {
this.m_timer.dispose();
this.m_timer = null;
}
if (cleanup == true) {
this.clear(dispose);
}
};
/**
* Emits new particles.
*
* @param {number} [ammount=1] The number of particles to be emitted.
*
* @returns {undefined}
*/
rune.particle.Emitter.prototype.emit = function(ammount) {
ammount = rune.util.Math.clamp(ammount || 0, 1, this.m_options.capacity);
while (ammount-- > 0) {
this.m_emit();
}
};
/**
* Gets a list of the emitter's particles. This is useful if, for example,
* you want to collision test if particles collide with other display objects.
*
* @param {boolean} [active=false] Whether only active particles should be included in the list, i.e. particles that are currently visible and thus active.
* @param {Array} [list=null] Reference to existing list where particles can be added. If no reference is specified, a new list is created.
*
* @returns {Array.<rune.particle.Particle>}
*/
rune.particle.Emitter.prototype.getParticles = function(active, list) {
list = list || [];
for (var i = 0; i < this.m_particles.length; i++) {
if (active && !this.m_particles[i]['parent']) {
continue;
}
list.push(this.m_particles[i]);
}
return list;
};
/**
* Emits new particles at a fixed time interval.
*
* @param {number} ammount The number of particles to be emitted.
* @param {number} delay The time, in milliseconds, between particle emissions.
* @param {number} repeat The number of repetitions.
*
* @returns {undefined}
*/
rune.particle.Emitter.prototype.setInterval = function(ammount, delay, repeat) {
this.clearInterval();
this.m_timer = new rune.timer.Timer({
duration: delay,
repeat: repeat,
onTick: function(timer) {
this.emit(ammount);
},
scope: this
});
this.m_timer.start();
};
//------------------------------------------------------------------------------
// Override public methods (ENGINE)
//------------------------------------------------------------------------------
/**
* @inheritDoc
*/
rune.particle.Emitter.prototype.update = function(step) {
rune.display.DisplayObject.prototype.update.call(this, step);
this.m_updateTimer(step);
};
/**
* @inheritDoc
*/
rune.particle.Emitter.prototype.dispose = function() {
this.clearInterval(true, true);
this.m_options.dispose();
rune.display.DisplayObject.prototype.dispose.call(this);
};
//------------------------------------------------------------------------------
// Protected methods
//------------------------------------------------------------------------------
/**
* Updates the Timer object for time intervals.
*
* @param {number} step Current time step.
*
* @returns {undefined}
* @protected
* @ignore
* @suppress {accessControls}
*/
rune.particle.Emitter.prototype.m_updateTimer = function(step) {
if (this.m_timer != null) {
if (this.m_timer['complete']) this.clearInterval();
else this.m_timer.update(step);
}
};
/**
* Creates and configures a particle.
*
* @returns {undefined}
* @protected
* @ignore
*/
rune.particle.Emitter.prototype.m_emit = function() {
var particle = this.m_createParticle();
particle['x'] = this['centerX'] + rune.util.Math.random(-this['width'] >> 1, this['width'] >> 1);
particle['y'] = this['centerY'] + rune.util.Math.random(-this['height'] >> 1, this['height'] >> 1);
particle['velocity']['y'] = rune.util.Math.random(this.m_options.minVelocity['y'], this.m_options.maxVelocity['y']);
particle['velocity']['x'] = rune.util.Math.random(this.m_options.minVelocity['x'], this.m_options.maxVelocity['x']);
particle['velocity'].acceleration['x'] = this.m_options.acceleration['x'];
particle['velocity'].acceleration['y'] = this.m_options.acceleration['y'];
particle['velocity'].drag['x'] = this.m_options.drag['x'];
particle['velocity'].drag['y'] = this.m_options.drag['y'];
particle.lifespan = rune.util.Math.randomInt(this.m_options.minLifespan, this.m_options.maxLifespan);
particle['velocity'].angular = rune.util.Math.random(this.m_options.minRotation, this.m_options.maxRotation);
if (this['parent'] != null) {
this['parent'].addChild(particle);
}
};
/**
* Creates a new, or reuses an existing particle.
*
* @returns {rune.particle.Particle}
* @protected
* @ignore
*/
rune.particle.Emitter.prototype.m_createParticle = function() {
var particle = null;
if (this.m_particles.length < this.m_options.capacity) {
particle = new this.m_options.particles[Math.floor(Math.random() * this.m_options.particles.length)]();
} else {
particle = this.m_particles.shift();
}
this.m_particles.push(particle);
return particle;
};</code></pre>
</article>
</section>
</div>
<nav>
<h2><a href="index.html">Home</a></h2><h3>Namespaces</h3><ul><li><a href="rune.html">rune</a></li><li><a href="rune.animation.html">animation</a></li><li><a href="rune.camera.html">camera</a></li><li><a href="rune.color.html">color</a></li><li><a href="rune.console.html">console</a></li><li><a href="rune.data.html">data</a></li><li><a href="rune.debug.html">debug</a></li><li><a href="rune.display.html">display</a></li><li><a href="rune.geom.html">geom</a></li><li><a href="rune.input.html">input</a></li><li><a href="rune.media.html">media</a></li><li><a href="rune.net.html">net</a></li><li><a href="rune.particle.html">particle</a></li><li><a href="rune.physics.html">physics</a></li><li><a href="rune.resource.html">resource</a></li><li><a href="rune.scene.html">scene</a></li><li><a href="rune.state.html">state</a></li><li><a href="rune.system.html">system</a></li><li><a href="rune.text.html">text</a></li><li><a href="rune.tilemap.html">tilemap</a></li><li><a href="rune.timer.html">timer</a></li><li><a href="rune.tween.html">tween</a></li><li><a href="rune.ui.html">ui</a></li><li><a href="rune.util.html">util</a></li></ul><h3>Classes</h3><ul><li><a href="rune.animation.Animation.html">Animation</a></li><li><a href="rune.animation.Animations.html">Animations</a></li><li><a href="rune.animation.AnimationScripts.html">AnimationScripts</a></li><li><a href="rune.camera.Camera.html">Camera</a></li><li><a href="rune.camera.CameraFade.html">CameraFade</a></li><li><a href="rune.camera.CameraFlash.html">CameraFlash</a></li><li><a href="rune.camera.Cameras.html">Cameras</a></li><li><a href="rune.camera.CameraShake.html">CameraShake</a></li><li><a href="rune.camera.CameraTargets.html">CameraTargets</a></li><li><a href="rune.camera.CameraTint.html">CameraTint</a></li><li><a href="rune.camera.CameraTintTween.html">CameraTintTween</a></li><li><a href="rune.camera.CameraViewport.html">CameraViewport</a></li><li><a href="rune.color.Color24.html">Color24</a></li><li><a href="rune.color.Color32.html">Color32</a></li><li><a href="rune.color.ColorComponent.html">ColorComponent</a></li><li><a href="rune.console.Console.html">Console</a></li><li><a href="rune.console.ConsoleCommand.html">ConsoleCommand</a></li><li><a href="rune.console.ConsoleCommands.html">ConsoleCommands</a></li><li><a href="rune.console.ConsoleCursor.html">ConsoleCursor</a></li><li><a href="rune.console.ConsoleHistory.html">ConsoleHistory</a></li><li><a href="rune.console.ConsoleInput.html">ConsoleInput</a></li><li><a href="rune.console.ConsoleManager.html">ConsoleManager</a></li><li><a href="rune.console.ConsoleOutput.html">ConsoleOutput</a></li><li><a href="rune.data.Highscores.html">Highscores</a></li><li><a href="rune.data.Loader.html">Loader</a></li><li><a href="rune.data.LoaderDebug.html">LoaderDebug</a></li><li><a href="rune.data.Logo.html">Logo</a></li><li><a href="rune.data.Requests.html">Requests</a></li><li><a href="rune.debug.Debugger.html">Debugger</a></li><li><a href="rune.debug.Framerate.html">Framerate</a></li><li><a href="rune.debug.Histogram.html">Histogram</a></li><li><a href="rune.debug.Master.html">Master</a></li><li><a href="rune.debug.Memory.html">Memory</a></li><li><a href="rune.debug.Music.html">Music</a></li><li><a href="rune.debug.Render.html">Render</a></li><li><a href="rune.debug.Sound.html">Sound</a></li><li><a href="rune.debug.Update.html">Update</a></li><li><a href="rune.display.Artboard.html">Artboard</a></li><li><a href="rune.display.Canvas.html">Canvas</a></li><li><a href="rune.display.DisplayGroup.html">DisplayGroup</a></li><li><a href="rune.display.DisplayGroups.html">DisplayGroups</a></li><li><a href="rune.display.DisplayObject.html">DisplayObject</a></li><li><a href="rune.display.DisplayObjectContainer.html">DisplayObjectContainer</a></li><li><a href="rune.display.Flicker.html">Flicker</a></li><li><a href="rune.display.Frame.html">Frame</a></li><li><a href="rune.display.Graphic.html">Graphic</a></li><li><a href="rune.display.Graphics.html">Graphics</a></li><li><a href="rune.display.Hitbox.html">Hitbox</a></li><li><a href="rune.display.InteractiveObject.html">InteractiveObject</a></li><li><a href="rune.display.Quadtree.html">Quadtree</a></li><li><a href="rune.display.RepeatedGraphic.html">RepeatedGraphic</a></li><li><a href="rune.display.Screen.html">Screen</a></li><li><a href="rune.display.Sprite.html">Sprite</a></li><li><a href="rune.display.Stage.html">Stage</a></li><li><a href="rune.display.Texture.html">Texture</a></li><li><a href="rune.geom.Point.html">Point</a></li><li><a href="rune.geom.Rectangle.html">Rectangle</a></li><li><a href="rune.geom.Vector2D.html">Vector2D</a></li><li><a href="rune.input.Gamepad.html">Gamepad</a></li><li><a href="rune.input.Gamepads.html">Gamepads</a></li><li><a href="rune.input.GamepadsOptions.html">GamepadsOptions</a></li><li><a href="rune.input.Inputs.html">Inputs</a></li><li><a href="rune.input.Keyboard.html">Keyboard</a></li><li><a href="rune.input.KeyboardKey.html">KeyboardKey</a></li><li><a href="rune.input.KeyboardOptions.html">KeyboardOptions</a></li><li><a href="rune.media.Sound.html">Sound</a></li><li><a href="rune.media.SoundChannel.html">SoundChannel</a></li><li><a href="rune.media.Sounds.html">Sounds</a></li><li><a href="rune.net.URLLoader.html">URLLoader</a></li><li><a href="rune.net.URLRequest.html">URLRequest</a></li><li><a href="rune.net.URLResponse.html">URLResponse</a></li><li><a href="rune.particle.Emitter.html">Emitter</a></li><li><a href="rune.particle.EmitterOptions.html">EmitterOptions</a></li><li><a href="rune.particle.Particle.html">Particle</a></li><li><a href="rune.physics.Space.html">Space</a></li><li><a href="rune.physics.Velocity.html">Velocity</a></li><li><a href="rune.resource.Request.html">Request</a></li><li><a href="rune.resource.Requester.html">Requester</a></li><li><a href="rune.resource.RequesterOptions.html">RequesterOptions</a></li><li><a href="rune.resource.Requests.html">Requests</a></li><li><a href="rune.resource.Resource.html">Resource</a></li><li><a href="rune.resource.Resources.html">Resources</a></li><li><a href="rune.scene.Scene.html">Scene</a></li><li><a href="rune.scene.Scenes.html">Scenes</a></li><li><a href="rune.state.State.html">State</a></li><li><a href="rune.state.States.html">States</a></li><li><a href="rune.system.Application.html">Application</a></li><li><a href="rune.system.Config.html">Config</a></li><li><a href="rune.system.Time.html">Time</a></li><li><a href="rune.text.BitmapField.html">BitmapField</a></li><li><a href="rune.text.BitmapFormat.html">BitmapFormat</a></li><li><a href="rune.tilemap.Block.html">Block</a></li><li><a href="rune.tilemap.Tile.html">Tile</a></li><li><a href="rune.tilemap.Tilemap.html">Tilemap</a></li><li><a href="rune.tilemap.TilemapLayer.html">TilemapLayer</a></li><li><a href="rune.timer.Timer.html">Timer</a></li><li><a href="rune.timer.TimerOptions.html">TimerOptions</a></li><li><a href="rune.timer.Timers.html">Timers</a></li><li><a href="rune.tween.Circular.html">Circular</a></li><li><a href="rune.tween.Cubic.html">Cubic</a></li><li><a href="rune.tween.Expo.html">Expo</a></li><li><a href="rune.tween.Linear.html">Linear</a></li><li><a href="rune.tween.Quad.html">Quad</a></li><li><a href="rune.tween.Quart.html">Quart</a></li><li><a href="rune.tween.Quint.html">Quint</a></li><li><a href="rune.tween.Sine.html">Sine</a></li><li><a href="rune.tween.Tween.html">Tween</a></li><li><a href="rune.tween.Tweens.html">Tweens</a></li><li><a href="rune.tween.TweenValue.html">TweenValue</a></li><li><a href="rune.ui.Counter.html">Counter</a></li><li><a href="rune.ui.CounterDigit.html">CounterDigit</a></li><li><a href="rune.ui.Progressbar.html">Progressbar</a></li><li><a href="rune.ui.VTList.html">VTList</a></li><li><a href="rune.ui.VTListElement.html">VTListElement</a></li><li><a href="rune.ui.VTMenu.html">VTMenu</a></li><li><a href="rune.ui.VTMenuPointer.html">VTMenuPointer</a></li><li><a href="rune.util.Executable.html">Executable</a></li><li><a href="rune.util.Filter.html">Filter</a></li><li><a href="rune.util.Math.html">Math</a></li><li><a href="rune.util.Palette.html">Palette</a></li><li><a href="rune.util.Path.html">Path</a></li><li><a href="rune.util.Paths.html">Paths</a></li><li><a href="rune.util.Stack.html">Stack</a></li><li><a href="rune.util.URL.html">URL</a></li></ul>
</nav>
<br class="clear">
<footer>
Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.11</a> on Tue May 21 2024 09:43:50 GMT+0200 (Central European Summer Time)
</footer>
<script> prettyPrint(); </script>
<script src="scripts/linenumber.js"> </script>
</body>
</html>