Week04

// bRigid provides classes for an easier handling of jBullet in Processing. bRigid is thought as a kind of Processing port for the bullet physics simulation library written in C++.
// This library allows the interaction of rigid bodies in 3D. Geometry/ Shapes are build with Processing PShape Class, for convinient display and export (c) 2013 Daniel Köhler, daniel@lab-eds.org

//here: build a TriangleMesh and use it as "Terrain"

import javax.vecmath.Vector3f;
import processing.core.PApplet;
import peasy.*;
import bRigid.*;
import de.voidplus.leapmotion.*;

LeapMotion leap;
PeasyCam cam;

BPhysics physics;

BObject rigid;
BTerrain terrain;

public void setup() {
  size(1280, 720, P3D);
  frameRate(60);

  cam = new PeasyCam(this, 200);
  cam.pan(0, 50);
  cam.rotateX(.4f);

  physics = new BPhysics();
  physics.world.setGravity(new Vector3f(0, 40, 0));

  float height = 1.1f;
  //BTerrain(PApplet p, int tesselation, float height, int seed, Vector3f position, Vector3f scale)
  terrain = new BTerrain(this, 110, height, 10, new Vector3f(), new Vector3f(2, 2, 2));
  physics.addBody(terrain);

  //create the first rigidBody as Sphere
  rigid = new BBox(this, 5, 1.0f, 10.0f, 1.0f);
  leap = new LeapMotion(this);
}

public void draw() {
   for(Hand hand : leap.getHands())
  {
      hand.draw();
  }
  background(255);
  lights();
  rotateY(frameCount*.002f);

  if (frameCount%2==0) {
    Vector3f pos = new Vector3f(random(-90, 90), -30, random(-90, 90));
    //reuse the rigidBody of the sphere for performance resons
    BObject r = new BObject(this, 5, rigid, pos, true);
    physics.addBody(r);
  }

  physics.update();
  terrain.display();
  for (int i =1;i<physics.rigidBodies.size();i++) {
    BObject b = (BObject) physics.rigidBodies.get(i);
    b.display(50, 50, 50);
  }
}