Particles spinner shooter:

- Uses Ship and Particle class

- Using vector from angle for laser, tied to ship heading. 

- Use left/right arrows to turn ship, mouse click to shoot bursts

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*/

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let particles = []

const max_particles = 1

let ship;

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function setup() {

  createCanvas(windowWidth, windowHeight);

  frameRate(60) //adjust to see animation in slow motion

  ship = new Ship();

}

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function draw() {

  background(10);

  if (mouseIsPressed){

      for (let i = 0 ; i < max_particles ; i++){

      let p = new Particle(ship.pos, ship.heading) //new direction each cycle

      particles.push(p)

     }

  }

  for (let p of particles){

    p.display()

    p.move()  

    p.bounce() //turn off to shoot to stop

    if (p.die()){

       //removes each particle if it happens to be dead

       let i = particles.indexOf(p)  

       particles.splice(i, 1)  

    }

  }

  ship.display()

  ship.turn();

}

​

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function keyPressed() {

  if (keyCode== RIGHT_ARROW) {

    ship.setRotation(0.1);

    print("turn right")

  } else if (keyCode == LEFT_ARROW) {

    ship.setRotation(-0.1);

    print("turn left")

  }

}

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function keyReleased() {

  ship.setRotation(0); // without this, the ship spins without stop

}

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