寿司が落ちてくるやつ

sushi.pde

import org.jbox2d.p5.*;
import org.jbox2d.common.*;
import org.jbox2d.collision.*;
import org.jbox2d.dynamics.*;
import org.jbox2d.dynamics.Body;
import org.jbox2d.dynamics.BodyDef;
import org.jbox2d.dynamics.joints.*;
import org.jbox2d.dynamics.contacts.*;

Physics physics;
Body circle;
class UserData {
  PImage img;
}
UserData data;
PImage toro_img, engawa_img, kappa_img, anago_img;

void setup() {
  size(800, 500);
  imageMode(CENTER);
  toro_img = loadImage("sushi2.png");
  engawa_img = loadImage("engawas.png");
  kappa_img = loadImage("kappa.png");
  anago_img = loadImage("anago.png");
  frameRate(60);
  InitScene();
}
void draw() {
  background(255);
  if(frameCount < 300) {
  if (frameCount % 30 == 0) {
    createSushi(300, 50, toro_img);
    createSushi(370, 50, kappa_img);
    createSushi(450, 50, engawa_img);
  } else if (frameCount % 20 == 0) {
    createSushi(310, 50, anago_img);
  } else if (frameCount % 10 == 0) {
    createSushi(320, 50, toro_img);
    createSushi(450, 50, engawa_img);
  } else if (frameCount % 5 == 0) {
    createSushi(320, 50, toro_img);
  }
  }
  physics.setRestitution(random(0,0.9)); 
}

void mousePressed() {
  createSushi(mouseX, mouseY, toro_img);
}
void createSushi(int X, int Y, PImage img) {
  circle=physics.createCircle(X, Y,20);
  data = new UserData();
  data.img = img;
  circle.setUserData(data);
  circle.setAngularVelocity(random(-10,10));
}

void keyPressed() {
  physics.destroy();
  physics = null;
  InitScene();
}



void InitScene() {
  float gravX = 0.0;                 
  float gravY = -100.0;
  float AABBWidth = 2*width;   
  float AABBHeight = 2*height;
  float borderBoxWidth = width;      
  float borderBoxHeight = height;
  float pixelsPerMeter = 30;
  physics = new Physics(this, width, height,
                      gravX, gravY,
                  AABBWidth, AABBHeight,
                  borderBoxWidth, borderBoxHeight,
                  pixelsPerMeter);

  //physics = new Physics(this, 800, 500);

  physics.setDensity(1.0f);
  physics.setCustomRenderingMethod(this, "custom");

}

void custom (World w) {
  smooth();
  for (Body circle = physics.getWorld().getBodyList(); circle != null; circle = circle.getNext())
  {
    org.jbox2d.collision.Shape shape;
    for (shape = circle.getShapeList(); shape != null; shape = shape.getNext())
    {
      if (shape.getType() == ShapeType.CIRCLE_SHAPE)
      {
        fill(0,0,0,0);
        stroke(0,0,0,0);
        sushiDraw(circle, shape);
      }
    }
  }
}

void sushiDraw(Body body, org.jbox2d.collision.Shape shape) {
  CircleShape circle = (CircleShape) shape;
  Vec2 center = circle.getLocalPosition();
  Vec2 wpoint = physics.worldToScreen(body.getWorldPoint(center));
  float radius = physics.worldToScreen(circle.getRadius());
  ellipse(wpoint.x,wpoint.y,radius*2,radius*2);
  if(radius == 20)
  {
    pushMatrix();
    translate(wpoint.x+1,wpoint.y+1);
    //rotate(random(-10,10));
    UserData data = (UserData) body.getUserData();
    image(data.img,0,0);
    popMatrix();
  }
}