shooter game.

ArrayList < Bullet > bullets = new ArrayList();

ArrayList < Enemy > mob = new ArrayList();

Player player;

int cycle1 = 0;

int cycle2 = 0;

​

String keysHeld = "";

​

float sinceSpawn;

float spawnInterval = 100;

​

void setup() {

  fullScreen();

​

  player = new Player();

}

​

void draw() {

  background(250);

​

  for (Bullet instance: bullets) {

    instance.render();

    if (abs(instance.xPos) > width || abs(instance.yPos) > height) bullets.remove(instance);

  }

  if (millis() - sinceSpawn > spawnInterval) {

    mob.add(new Enemy());

    sinceSpawn = millis();

  }

  for (Enemy instance: mob) {

    instance.render();

  }

  if (mousePressed) {

    if (cycle1 >= 10) {

      bullets.add(new Bullet(2.5, player.size * 14 / 10, 7.5));

      bullets.add(new Bullet(3, player.size * 16 / 10, 8));

      cycle1 = 0;

    }

    if (cycle2 >= 40) {

      bullets.add(new Bullet(1.25, player.size * 12 / 10, 6));

      cycle2 = 0;

    }

  }

​

  player.direction = atan2((mouseY - player.yPos), (mouseX - player.xPos));

  player.render();

​

  if (isHeld('w'))

    player.yPos -= 5;

  if (isHeld('a'))

    player.xPos -= 5;

  if (isHeld('s'))

    player.yPos += 5;

  if (isHeld('d'))

    player.xPos += 5;

​

  cycle1 += 1 / (frameRate / 30);

  cycle2 += 1 / (frameRate / 30);

​

}

​

boolean isHeld(char _key) {

  return keysHeld.contains(String(_key));

}

​

void keyPressed() {

  keysHeld += String(key);

}

​

void keyReleased() {

  keysHeld = keysHeld.replace(String(key), "");

}