import processing.opengl.*;	//bindet die opengl-bibliothek ein
import saito.objloader.*;       //bindet OBJ model-bibliothek ein

OBJModel model1;
OBJModel model2;
OBJModel model3;
float basicScale = 1.0;
float value = basicScale;
float radX = 0;
float radY = 0;
float radZ = 0;

// these booleans will be used to turn on and off bits of the OBJModel
boolean bTexture = true;
boolean bStroke = false;
boolean bMaterial = true;

void setup() {
  size(400, 400, OPENGL);
  model1 = new OBJModel(this);
  model1.load("chair.obj");
  model1.setDrawMode(POLYGON);
  
  model2 = new OBJModel(this);
  model2.load("chair.obj");
  model2.setDrawMode(POLYGON);
  
  model3 = new OBJModel(this);
  model3.load("chair.obj");
  model3.setDrawMode(POLYGON);

  PFont fontA = loadFont("CourierNew36.vlw");
  textFont(fontA, 20);
  noStroke();
  frameRate(10);
}

int posX = 0;
int posY = 0;
int posZ = 0;

int x = -100;
int y = -200;
int z = 400;

void draw() {
  //background(180);
  background(0);
  lights();
  directionalLight(255, 255, 255, -1, 0, 0);
  directionalLight(255, 255, 255, 0, -1, 0);
  directionalLight(255, 255, 255, 0, 1, 0);
  translate(width/2, height/1.5);
  //camera(-100, -200, 400, 0.0, 0.0, 0.0, 0, 1, 0);
  camera(x, y, z, 0.0, 0.0, 0.0, 0, 1, posZ);
  //coordinates();
  pushMatrix();
  rotateX(radX);	//rotiert das objekt 
  rotateY(radY);	//rotiert das objekt 
  rotateZ(radZ);	//rotiert das objekt 
  scale(value);
  model1.draw();
  
  translate(100,0);
  rotateY(1);
  model2.draw();
  
  translate(100,0);
  rotateY(2);
  model3.draw();
  
  popMatrix();
  //display();
  if(z > -300){
    z = z -10;
  }
  else{
    if(x < 180){
      x = x +10;
    }
    else if(y < 500){
      y = y+10;
    }
    else if(y < 4000){
      y = y+50; 
    }
    else{
       x = -100;
       y = -200;
       z = 400; 
    }
  }
}



void mouseDragged() {
  if (mouseButton == LEFT) {
    radX = (float)mouseY/(width/2)*PI;
    radY = (float)mouseX/(height/2)*PI;
    //radZ = (float)mouseX/(width/2)*PI;
  }
}

void coordinates() {
  stroke(50);
  fill(0);
  line(0,0,0,250,0,0);
  text("+x",250,0,0);
  line(0,0,0,0,250,0);
  text("+y",0,250,0);
  line(0,0,0,0,0,250);
  text("+z",0,0,250);
  noStroke();
  noFill();
}

void keyPressed() {
    
    if (key == CODED) {
      if (keyCode == UP) {
        x += 10;
      } 
      else if (keyCode == DOWN) {
        x -= 10;
      }
      else if (keyCode == LEFT) {
        y += 10;
      } 
      else if (keyCode == RIGHT) {
        y -= 10;
      }
    }
    redraw();  
}

void display() {
  fill(0);
  text("eyeX = "+posX,10,20);
  text("eyeY = "+posY,10,40);
  text("eyeZ = "+posZ,10,60);
  text("x  = "+x,10,80);
  text("y  = "+y,10,100);
  text("z  = "+z,10,120);
  noFill();
}