//import processing.opengl.*;

PImage tex;
float rotX = PI/4;
float rotY = PI/4;
int zoom = 100;

void setup() {
  size(500,300,P3D);
  tex = loadImage("textur.jpg");
  textureMode(IMAGE);
  noStroke();
}


void draw() {
  background(0);
  lights();
  directionalLight(51, 102, 126, -1, 0, 0);
  directionalLight(51, 102, 126, 0, -1, 0);
  
  translate(width/2, height/2, -100);
  rotateX(rotX);
  rotateY(rotY);
  scale(zoom);

  beginShape(QUADS);
  texture(tex);
  
  // +Z "front" face / 1
  vertex(-1, -1,  1, 0, 1);
  vertex( 1, -1,  1, 99, 1);
  vertex( 1,  1,  1, 99, 100);
  vertex(-1,  1,  1, 0, 100);

  // -Z "back" face / 6
  vertex( 1, -1, -1, 0, 500);
  vertex(-1, -1, -1, 99, 500);
  vertex(-1,  1, -1, 99, 599);
  vertex( 1,  1, -1, 0, 599);

  // +Y "bottom" face / 2
  vertex(-1,  1,  1, 0, 100);
  vertex( 1,  1,  1, 99, 100);
  vertex( 1,  1, -1, 99, 200);
  vertex(-1,  1, -1, 0, 200);

  // -Y "top" face / 5
  vertex(-1, -1, -1, 0, 400);
  vertex( 1, -1, -1, 99, 400);
  vertex( 1, -1,  1, 99, 500);
  vertex(-1, -1,  1, 0, 500);

  // +X "right" face / 4
  vertex( 1, -1,  1, 0, 300);
  vertex( 1, -1, -1, 99, 300);
  vertex( 1,  1, -1, 99, 400);
  vertex( 1,  1,  1, 0, 400);

  // -X "left" face / 3
  vertex(-1, -1, -1, 0, 200);
  vertex(-1, -1,  1, 99, 200);
  vertex(-1,  1,  1, 99, 300);
  vertex(-1,  1, -1, 0, 300);

  endShape(CLOSE);
}

void mouseDragged() {
  float rate = 0.01;
  rotX += (pmouseY-mouseY) * rate;
  rotY += (mouseX-pmouseX) * rate;
}

void keyPressed() {
  if (keyCode == UP) {
    zoom = abs(zoom)+5;
  }
  if (keyCode == DOWN) {
    zoom = abs(zoom)-5;
  }
}