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author | Pierre Frisch | 2011-12-22 07:25:50 -0800 |
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committer | Valerio Virgillito | 2012-01-27 11:18:17 -0800 |
commit | b89a7ee8b956c96a1dcee995ea840feddc5d4b27 (patch) | |
tree | 0f3136ab0ecdbbbed6a83576581af0a53124d6f1 /js/helper-classes/RDGE/src/core/script/particle.js | |
parent | 2401f05d1f4b94d45e4568b81fc73e67b969d980 (diff) | |
download | ninja-b89a7ee8b956c96a1dcee995ea840feddc5d4b27.tar.gz |
First commit of Ninja to ninja-internal
Signed-off-by: Valerio Virgillito <rmwh84@motorola.com>
Diffstat (limited to 'js/helper-classes/RDGE/src/core/script/particle.js')
-rw-r--r-- | js/helper-classes/RDGE/src/core/script/particle.js | 842 |
1 files changed, 842 insertions, 0 deletions
diff --git a/js/helper-classes/RDGE/src/core/script/particle.js b/js/helper-classes/RDGE/src/core/script/particle.js new file mode 100644 index 00000000..dd83433e --- /dev/null +++ b/js/helper-classes/RDGE/src/core/script/particle.js | |||
@@ -0,0 +1,842 @@ | |||
1 | /* <copyright> | ||
2 | This file contains proprietary software owned by Motorola Mobility, Inc.<br/> | ||
3 | No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/> | ||
4 | (c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved. | ||
5 | </copyright> */ | ||
6 | |||
7 | particleStats = function() { | ||
8 | this.numParticles = new stat("particles", "numParticles", 0); | ||
9 | this.numDrawCalls = new stat("particles", "numDrawCalls", 0); | ||
10 | this.numVerts = new stat("particles", "numVerts", 0); | ||
11 | this.numTris = new stat("particles", "numTris", 0); | ||
12 | |||
13 | this.report = function(psys) { | ||
14 | for (em in psys.emitters) { | ||
15 | var pbuffer = psys.emitters[em].pbuffer; | ||
16 | var idxBuffer = pbuffer.indexBuffer.front(); | ||
17 | var posBuffer = pbuffer.posBuffer.front(); | ||
18 | this.numParticles.value += idxBuffer.numIndices / 6; | ||
19 | this.numTris.value += idxBuffer.numIndices / 3; | ||
20 | this.numVerts.value += this.numParticles.value * 4; | ||
21 | if(this.numParticles.value > 0) { | ||
22 | this.numDrawCalls.value++; | ||
23 | } | ||
24 | } | ||
25 | } | ||
26 | }; | ||
27 | |||
28 | g_particleStats = null; | ||
29 | //if( g_enableBenchmarks ) { | ||
30 | // g_particleStats = new particleStats; | ||
31 | //} | ||
32 | |||
33 | particle = function(def, id) { | ||
34 | this.id = id; | ||
35 | this.def = def; | ||
36 | if( this.def.numFrames == undefined ) { | ||
37 | if( this.def.textureSize && this.def.frameSize ) { | ||
38 | this.def.numFrames = ( this.def.textureSize[0] / this.def.frameSize[0] ) * ( this.def.textureSize[1] / this.def.frameSize[1] ); | ||
39 | } else { | ||
40 | this.def.numFrames = 0; | ||
41 | } | ||
42 | } | ||
43 | |||
44 | this.pos = vec3.zero(); | ||
45 | this.delta = vec3.zero(); | ||
46 | this.rotate = 0.0; | ||
47 | this.age = 0.0; | ||
48 | this.lifespan = 0.0; | ||
49 | this.velocity = vec3.zero(); | ||
50 | this.gravity = vec3.zero(); | ||
51 | this.frame = 0; | ||
52 | this.frameCount = 0; | ||
53 | this.lastPos = vec3.zero(); | ||
54 | this.state = 0; | ||
55 | this.hide = false; | ||
56 | this.color = vec4.zero(); | ||
57 | |||
58 | this.randomize = function(min, max) { | ||
59 | return min + (max - min) * Math.random(); | ||
60 | } | ||
61 | this.rate = this.randomize( -1.0, 1.0 ); | ||
62 | |||
63 | this.randomize3 = function(min, max) { | ||
64 | return [this.randomize(min[0], max[0]), | ||
65 | this.randomize(min[1], max[1]), | ||
66 | this.randomize(min[2], max[2])]; | ||
67 | } | ||
68 | |||
69 | this.spawn = function(spawnMatrix) { | ||
70 | if( this.def.initialframe == undefined ) { | ||
71 | this.frame = this.id % this.def.numFrames; | ||
72 | } else { | ||
73 | this.frame = this.randomize( this.def.initialframe[0], this.def.initialframe[1] ); | ||
74 | } | ||
75 | this.pos = this.randomize3(this.def.initialpos[0], this.def.initialpos[1]); | ||
76 | if (this.def.worldSpace) { | ||
77 | // calculate the initial position in world space. | ||
78 | this.pos = mat4.transformPoint( spawnMatrix, this.pos ); | ||
79 | } | ||
80 | // all other values are assumed to be defined in local or world space depending on | ||
81 | // the particles worldSpace designation. | ||
82 | var toRadians = Math.PI/180.0; | ||
83 | if( this.def.initialsize ) { | ||
84 | this.size = this.randomize(this.def.initialsize[0], this.def.initialsize[1]); | ||
85 | } else { | ||
86 | this.size = 1.0; | ||
87 | } | ||
88 | this.velocity = this.randomize3(this.def.initialvel[0], this.def.initialvel[1]); | ||
89 | this.gravity = [this.def.gravity[0], this.def.gravity[1], this.def.gravity[2]]; | ||
90 | this.rotate = this.randomize(this.def.initialrot[0] * toRadians, this.def.initialrot[1] * toRadians); | ||
91 | this.lifespan = this.randomize(this.def.lifespan[0], this.def.lifespan[1]); | ||
92 | this.age = 0.0; | ||
93 | this.delta = [0.0, 0.0, 0.0]; | ||
94 | this.lastPos = vec3.add(this.pos, vec3.scale(this.velocity, -1.0 / 30.0)); | ||
95 | this.color = [1,1,1,1];//vec4.random( [0.0, 0.0, 0.0, 1.0], [1.0, 1.0, 1.0, 1.0] ); | ||
96 | } | ||
97 | } | ||
98 | |||
99 | // double buffered array utility class | ||
100 | DoubleBuffer = function(arrType, size) { | ||
101 | this.buffer = {}; | ||
102 | this.buffer[0] = new arrType(size); | ||
103 | this.buffer[1] = new arrType(size); | ||
104 | this.bufferIndex = 0; | ||
105 | |||
106 | this.flip = function() { | ||
107 | this.bufferIndex = 1 - this.bufferIndex; | ||
108 | } | ||
109 | this.front = function() { | ||
110 | return this.buffer[this.bufferIndex]; | ||
111 | } | ||
112 | this.back = function() { | ||
113 | return this.buffer[1 - this.bufferIndex]; | ||
114 | } | ||
115 | } | ||
116 | |||
117 | |||
118 | // cycling buffer | ||
119 | particleBuffer = function(pdef, emitter, size) | ||
120 | { | ||
121 | var renderer = g_Engine.getContext().renderer; | ||
122 | var ctx = renderer.ctx; | ||
123 | |||
124 | s_particleShader = new jshader(); | ||
125 | s_particleShader.def = { | ||
126 | 'shaders': { | ||
127 | 'defaultVShader': "assets/shaders/particle_vshader.glsl", | ||
128 | 'defaultFShader': "assets/shaders/particle_fshader.glsl" | ||
129 | }, | ||
130 | 'techniques': { | ||
131 | 'defaultTechnique': [{ | ||
132 | 'vshader' : 'defaultVShader', | ||
133 | 'fshader' : 'defaultFShader', | ||
134 | 'attributes' : { | ||
135 | 'a_pos' : { 'type' : 'vec4' }, | ||
136 | 'a_posId' : { 'type' : 'float' }, | ||
137 | 'a_rotation' : { 'type' : 'float' }, | ||
138 | 'a_size' : { 'type' : 'float' }, | ||
139 | 'a_color' : { 'type' : 'vec4' } | ||
140 | }, | ||
141 | 'params' : { | ||
142 | 'u_projMatrix' : { 'type' : 'mat4' }, | ||
143 | 'u_viewMatrix' : { 'type' : 'mat4' }, | ||
144 | 'u_worldMatrix' : { 'type' : 'mat4' }, | ||
145 | 'u_particleSizeX' : { 'type' : 'vec4' }, | ||
146 | 'u_particleSizeY' : { 'type' : 'vec4' }, | ||
147 | 'u_particleRot' : { 'type' : 'vec4' }, | ||
148 | 'u_particleColors' : { 'type' : 'mat4' }, | ||
149 | 'u_textureSize' : { 'type' : 'vec2' }, | ||
150 | 'u_frameSize' : { 'type' : 'vec2' }, | ||
151 | 's_texture0' : { 'type' : 'tex2d' } | ||
152 | // 's_texture1' : { 'type' : 'tex2d' } | ||
153 | } | ||
154 | }] | ||
155 | } | ||
156 | } | ||
157 | s_particleShader.init(); | ||
158 | s_particleTextures = {}; | ||
159 | |||
160 | this.shader = s_particleShader; | ||
161 | this.owner = emitter; | ||
162 | if( pdef.texture && s_particleTextures[pdef.texture] == undefined ) { | ||
163 | s_particleTextures[pdef.texture] = renderer.createTexture(pdef.texture); | ||
164 | if( !pdef.textureSize || !pdef.frameSize ) { | ||
165 | pdef.textureSize = []; | ||
166 | pdef.textureSize[0] = s_particleTextures[pdef.texture].image.width; | ||
167 | pdef.textureSize[1] = s_particleTextures[pdef.texture].image.height; | ||
168 | |||
169 | } | ||
170 | |||
171 | if( !pdef.frameSize ) { | ||
172 | pdef.frameSize = []; | ||
173 | pdef.frameSize[0] = s_particleTextures[pdef.texture].image.width; | ||
174 | pdef.frameSize[1] = s_particleTextures[pdef.texture].image.height; | ||
175 | } | ||
176 | } | ||
177 | if( pdef.texture2 && s_particleTextures[pdef.texture2] == undefined ) { | ||
178 | s_particleTextures[pdef.texture2] = renderer.createTexture(pdef.texture2); | ||
179 | } | ||
180 | this.texture = s_particleTextures[pdef.texture]; | ||
181 | this.texture2 = s_particleTextures[pdef.texture2]; | ||
182 | this.bounds = {}; | ||
183 | this.bounds.min = vec3.zero(); | ||
184 | this.bounds.max = vec3.zero(); | ||
185 | |||
186 | this.srcBlend = pdef.srcBlend; | ||
187 | this.dstBlend = pdef.dstBlend; | ||
188 | |||
189 | this.particles = new Array(); | ||
190 | |||
191 | this.posBuffer = new DoubleBuffer(Float32Array, 16 * size); // 4 positions per particle, 4 components per position (particle age in w) | ||
192 | this.posIdBuffer = new Float32Array(4 * size); | ||
193 | this.sizeBuffer = new DoubleBuffer(Float32Array, 4 * size); | ||
194 | this.rotBuffer = new DoubleBuffer(Float32Array, 4 * size); | ||
195 | this.colorBuffer = new DoubleBuffer(Float32Array, 16 * size); | ||
196 | this.indexBuffer = new DoubleBuffer(Uint16Array, 6 * size); | ||
197 | this.indexBuffer.front().numIndices = 0; | ||
198 | this.indexBuffer.back().numIndices = 0; | ||
199 | |||
200 | for ( i = 0; i < size; ++i ) { | ||
201 | this.particles.push(new particle(pdef, i)); | ||
202 | |||
203 | // initialize double buffers. | ||
204 | // the first pass will init the front buffers. | ||
205 | // the second pass will init the back buffers. | ||