Bird b;


void setup(){
  size(400, 400, P3D);
  noStroke();
  b = new Bird();
}


void draw(){
  background(152, 223, 255);
  lights();
  b.fly();
}

import processing.core.PApplet;

public class Bird{

  private PApplet p;
  private float offsetX, offsetY, offsetZ;
  private float w, h;
  private int bodyFill;
  private int wingFill;
  private float ang = 0, ang2 = 0, ang3 =0, ang4 = 0;
  private float radiusX = 120, radiusY = 200, radiusZ = 700;
  private float rotX = 15, rotY = 10, rotZ = 5;
  private float flapSpeed = .4f;
  private float rotSpeed = .1f;

  public Bird(PApplet p){
    this(p, 0, 0, 0, 60, 80);
  }

  public Bird(PApplet p, float offsetX, float offsetY,
  float offsetZ, float w, float h){
    this.p = p;
    this.offsetX = offsetX;
    this.offsetY = offsetY;
    this.offsetZ = offsetZ;
    this.h = h;
    this.w = w;
    bodyFill = p.color(200, 100, 10);
    wingFill = p.color(200, 200, 20);
  }

  public void setOffsetX(float offsetX){
    this.offsetX = offsetX;
  }

  public float getOffsetX(float offsetX){
    return offsetX;
  }

  public void setColor(int bodyFill, int wingFill){
    this.bodyFill = bodyFill;
    this.wingFill = wingFill;
  }

  public void setFlight(float radiusX, float radiusY, float radiusZ,
  float rotX, float rotY, float rotZ){
    this.radiusX = radiusX;
    this.radiusY = radiusY;
    this.radiusZ = radiusZ;

    this.rotX = rotX;
    this.rotY = rotY;
    this.rotZ = rotZ;
  }

  public void setWingSpeed(float flapSpeed){
    this.flapSpeed = flapSpeed;
  }

  public void setRotSpeed(float rotSpeed){
    this.rotSpeed = rotSpeed;
  }

  public void fly(){
    p.pushMatrix();
    float px, py, pz;
    p.fill(bodyFill);

    //flight
    px = p.sin(p.radians(ang3))*radiusX;
    py = p.sin(p.radians(ang3))*radiusY;
    pz = p.sin(p.radians(ang4))*radiusZ;
    //

    p.translate(p.width/2+offsetX+px, p.height/2+offsetY+py,
    -500+offsetZ+pz);

    p.rotateX(p.sin(p.radians(ang2))*rotX);
    p.rotateY(p.sin(p.radians(ang2))*rotY);
    p.rotateZ(p.sin(p.radians(ang2))*rotZ);

    //body
    p.box(w/5, h, w/5);

    p.fill(wingFill);
    //left wing
    p.pushMatrix();
    p.rotateY(p.sin(p.radians(ang))*20);
    p.rect(0, -h/2, w, h);
    p.popMatrix();

    //right wing
    p.pushMatrix();
    p.rotateY(p.sin(p.radians(ang))*-20);
    p.rect(-w, -h/2, w, h);
    p.popMatrix();

    //wing flap
    ang += flapSpeed;
    if (ang > 3){
      flapSpeed *= -1;
    }
    if (ang < -3) {
      flapSpeed *= -1;
    }

    // ang's run trig functions
    ang2 += rotSpeed;
    ang3 += .7;
    ang4 += .55;
    p.popMatrix();
  }
}