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Processing勉強会の課題「ランダム and 音」
Random and sound.
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import java.util.*; import shiffman.box2d.*; import org.jbox2d.common.*; import org.jbox2d.dynamics.joints.*; import org.jbox2d.collision.shapes.*; import org.jbox2d.collision.shapes.Shape; import org.jbox2d.common.*; import org.jbox2d.dynamics.*; import org.jbox2d.dynamics.contacts.*; import ddf.minim.*; Box2DProcessing box2d; ArrayList<Particle> particles; Obstacle[] obstacles; ArrayList<Wave> waves; Minim minim; AudioSample[] pianos; void setup() { size(720, 720); frameRate(30); colorMode(HSB); box2d = new Box2DProcessing(this); box2d.createWorld(); box2d.setGravity(0, -20); box2d.listenForCollisions(); particles = new ArrayList<Particle>(); obstacles = new Obstacle[3]; obstacles[0] = new Obstacle(width / 2, height / 2); obstacles[1] = new Obstacle(width / 6 * 1, height / 6 * 4); obstacles[2] = new Obstacle(width / 6 * 5, height / 6 * 4); minim = new Minim(this); pianos = new AudioSample[8]; pianos[0] = minim.loadSample("pianoA.mp3"); pianos[1] = minim.loadSample("pianoB.mp3"); pianos[2] = minim.loadSample("pianoC.mp3"); pianos[3] = minim.loadSample("pianoC2.mp3"); pianos[4] = minim.loadSample("pianoD.mp3"); pianos[5] = minim.loadSample("pianoE.mp3"); pianos[6] = minim.loadSample("pianoF.mp3"); pianos[7] = minim.loadSample("pianoG.mp3"); } void draw() { box2d.step(); background(239); for(Obstacle obs : obstacles) { obs.display(); } if(frameCount % 60 == 1) { Particle p = new Particle(random(width * 0.2, width * 0.8), 50, 25); particles.add(p); } Iterator<Particle> it_particles = particles.iterator(); while(it_particles.hasNext()) { Particle p = it_particles.next(); p.display(); if(p.isDead()) { it_particles.remove(); } } Iterator<Wave> it_waves = waves.iterator(); while(it_waves.hasNext()) { Wave w = it_waves.next(); w.run(); if(w.isDead()) { it_waves.remove(); } } } void stop() { minim.stop(); for(int i = 0; i < pianos.length; i++){ pianos[i].close(); } } void beginContact(Contact cp) { Fixture f1 = cp.getFixtureA(); Fixture f2 = cp.getFixtureB(); Body b1 = f1.getBody(); Body b2 = f2.getBody(); Object o1 = b1.getUserData(); Object o2 = b2.getUserData(); if(o1.getClass() == Particle.class) { Particle p = (Particle)o1; p.lifespan -= 30; } if(o2.getClass() == Particle.class) { Particle p = (Particle)o2; p.lifespan -= 30; } if(o1.getClass() == Obstacle.class) { Obstacle o = (Obstacle)o1; waves.add(new Wave(o.x, o.y, o.size)); pianos[int(random(8))].trigger(); return; } else if(o2.getClass() == Obstacle.class) { Obstacle o = (Obstacle)o2; waves.add(new Wave(o.x, o.y, o.size)); pianos[int(random(8))].trigger(); return; } } |
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class Obstacle { Body body; float x, y, size; Obstacle(float x_, float y_) { x = x_; y = y_; size = 150; makeBody(new Vec2(x, y)); waves = new ArrayList<Wave>(); } void makeBody(Vec2 center) { CircleShape cs = new CircleShape(); float box2dSize = box2d.scalarPixelsToWorld(size / 2); cs.setRadius(box2dSize); BodyDef bd = new BodyDef(); bd.type = BodyType.STATIC; bd.position.set(box2d.coordPixelsToWorld(center)); body = box2d.createBody(bd); body.createFixture(cs, 1); body.setUserData(this); } void display() { Vec2 pos = box2d.getBodyPixelCoord(body); pushMatrix(); translate(pos.x, pos.y); fill(39); noStroke(); ellipse(0, 0, size, size); popMatrix(); } } |
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class Particle { Body body; float size; float lifespan; boolean countDown; Particle(float x, float y, float s) { size = s; lifespan = 255; makeBody(new Vec2(x, y)); } void makeBody(Vec2 center) { CircleShape cs = new CircleShape(); float box2dSize = box2d.scalarPixelsToWorld(size); cs.setRadius(box2dSize / 2); FixtureDef fd = new FixtureDef(); fd.shape = cs; fd.density = 1; fd.friction = 1; fd.restitution = 0.5; BodyDef bd = new BodyDef(); bd.type = BodyType.DYNAMIC; bd.position.set(box2d.coordPixelsToWorld(center)); body = box2d.createBody(bd); body.createFixture(fd); body.setUserData(this); } boolean isDead() { if(lifespan < 0){ box2d.destroyBody(body); return true; }else{ return false; } } void display() { Vec2 pos = box2d.getBodyPixelCoord(body); pushMatrix(); translate(pos.x, pos.y); fill(39, lifespan); stroke(39); strokeWeight(2); ellipse(0, 0, size, size); popMatrix(); } } |
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class Wave { PVector center; float radius; float lifespan; Wave(float x, float y, float r) { center = new PVector(x, y); radius = r; lifespan = 125; } void run() { update(); display(); } void update() { radius += 3; lifespan -= 1; } void display() { pushMatrix(); translate(center.x, center.y); noFill(); stroke(39, lifespan); strokeWeight(3); ellipse(0, 0, radius, radius); popMatrix(); } boolean isDead() { if(lifespan < 0) { return true; } return false; } } |