Created
December 24, 2015 00:01
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| /* | |
| * Swarm trajectory | |
| Copyright (c) 2015 Masaki Yamabe. | |
| This software is released under the MIT License. | |
| http://opensource.org/licenses/mit-license.php | |
| * note | |
| it's required 'Processing v2.2.1' and 'iGeo v0.9.1.6' | |
| http://igeo.jp/download.html | |
| */ | |
| import processing.opengl.*; | |
| import igeo.*; | |
| void setup(){ | |
| size(1200, 768, IG.GL); | |
| IG.bg(0,0,0); | |
| for(int i=0; i<80; i++){ | |
| MyBoid b = new MyBoid(IRand.pt(80,80,80,120,120,120), IRand.dir(5)); | |
| } | |
| new myAttractor(100,100,100).intensity(150).gaussianDecay(200); | |
| } | |
| class MyBoid extends IBoidTrajectory{ | |
| IVec prevPos; | |
| IVec c; | |
| float lifeTime = 300; | |
| MyBoid(IVec p, IVec v){ | |
| super(p,v); | |
| cohesionDist(60); | |
| cohesionRatio(2); | |
| separationDist(40); | |
| separationRatio(15); | |
| alignmentDist(40); | |
| alignmentRatio(2); | |
| float t = 0.95*sin(IG.time()*0.001)+0.4; | |
| float t2 = t+0.2; | |
| if(t2 > 1.0) t2 = 1.0; | |
| c = new IVec(IRand.get(t, t2), 1.0, 1.0); | |
| hsb(c.x,c.y,c.z,0.7); | |
| } | |
| void update(){ | |
| super.update(); | |
| if(time > lifeTime){ | |
| del(); | |
| } | |
| else{ | |
| hsb(c.x,c.y,c.z, 0.85 * pow((lifeTime - time)/lifeTime,0.7)); | |
| if(IRand.pct(0.35)){ | |
| IVec pos = pos().cp(); | |
| IVec dir = vel().cp(); | |
| dir.rot(PI/3).mul(1.5); | |
| if(IRand.pct(50)){ | |
| dir.flip(); | |
| } | |
| MyBoid b = new MyBoid(pos, dir); | |
| } | |
| } | |
| } | |
| } | |
| class myAttractor extends IAttractor{ | |
| IFieldVisualizer ifv, pifv; | |
| myAttractor(double x, double y, double z){ | |
| super(x,y,z); | |
| } | |
| void update(){ | |
| double n = noise(time*0.1); | |
| double n2 = noise(time); | |
| IVec pos2 = new IVec( | |
| 100*sin(IG.time()*0.012) + 10*sin(IG.time()*0.1), | |
| 100*cos(IG.time()*0.012) + 10*cos(IG.time()*0.1), | |
| 50*cos(IG.time()*0.01)); | |
| pos().set(pos2); | |
| super.update(); | |
| } | |
| } |
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