Nave player;
float acel;
float yaw;

float univ = 5000;
Star[] stars = new Star[5000];
PVector center;

void setup(){
  size( 700, 600, FX2D );
  player = new Nave( 350, 300, new PImage(), 0.06 );
  imageMode( CENTER );
  for( int i=0; i<stars.length; i++){
    stars[i] = new Star(random(-univ, univ), random(-univ, univ), random( 0.5, 4), color(random(200, 255), random(200, 255), random(200, 255)));
  }
  center = new PVector(width*0.5, height*0.5);
}
void draw(){
  background(#040334);
  noStroke();

  translate(-player.pos.x + center.x, -player.pos.y + center.y);

  for( int i=0; i<stars.length; i++){
    fill(stars[i].col);
    stars[i].display();
  }
  player.move();
  player.display();
  //println(frameRate);
}

class Nave{
  PVector pos, vel;
  float rot, sca, rotvel, thrust;
  PImage img;
  Nave( float x, float y, PImage i, float s ){
    pos = new PVector( x, y );
    vel = new PVector( 0, 0 );
    rot = -HALF_PI;
    img = i;
    sca = s;
    rotvel = 0.075;
    thrust = 0.1;
  }
  void move(){
    rot += yaw * rotvel;
      PVector nvel = new PVector(thrust*acel, 0);
      nvel.rotate(rot);
      vel.add(nvel);
    pos.add( vel );
  }
  void display(){
    pushMatrix();
    translate( pos.x, pos.y );
    scale( sca );
    rotate( rot );
    //image( img, 0, 0 );
    fill(255,0,0);
    ellipse(0, 0, 800, 400);
    popMatrix();
  }
}

class Star {
  PVector pos;
  float tam;
  color col;
  Star(float x, float y, float r, color c){
    pos = new PVector(x, y);
    tam = r;
    col = c;
  }
  void display(){
    fill(col);
    ellipse(pos.x, pos.y, tam + sin(frameCount * 0.1), tam + sin(frameCount * 0.1));
  }
}




void keyPressed() {
  switch(keyCode) {
    case LEFT:
    yaw = -1;
    break;
    case RIGHT:
    yaw = 1;
    break;
    case UP:
    acel = 1;
    break;
    case DOWN:
    acel = -1;
    break;
  }
}

void keyReleased() {
  switch(keyCode) {
    case LEFT:
    case RIGHT:
    yaw = 0;
    break;
    case UP:
    case DOWN:
    acel = 0;
    break;
  }
}