//Unnamed space shooter game

​

//sprite

let heroPlane;

let heroBullet;

// let testTarget; //test only

let commonEnemy;

​

//constants

const maxHP = 5; //maximum hp of hero

const maxMssl = 2; //maximum number of missiles

const maxLas = 1; //maximum number of laser

const lasC = 1000; //charge needed to get a laser

const sp = 6; //speed of the plane

const shootCD = 30; //normal shoot cooldown

const powerUp1CD = 5; //shoot cooldown of more bullet powerup

const up1Time = 180;

const bulletSp = 10; //player bullet speed

const afterHit = 10; //player does not take damage 10 frames after hit

const bgSp = 3;

​

//variables

let heroHP = 5; //current hp

let mssl = 2; //current missile

let las = 0; //current laser

let shootCounter = 0;

let lasCharge = 0; //current laser charge

let powerUp = 0; //0:normal;1:veryLowShootCD

let playerHurt = true;

let hitCounter = 0;

let bgY1; //background1

let bgY2; //background2

let generalCount1 = 0;

let point = 0;

​

//image

let star; //background star

​

//sound

let pickup;

let failure;

let shoot;

let bgm;

​

function preload() {

  star = loadImage("bg/star.png");

  shoot = loadSound("sfx/shoot.wav")

  pickup = loadSound("sfx/pickup.wav")

  failure = loadSound("sfx/fail.wav")

  bgm = loadSound("bgm.mp3")

  /*

  shoot sound effect: https://freesound.org/people/MATRIXXX_/sounds/413057/

  pickup sound effect:

  https://freesound.org/people/suntemple/sounds/253172/

  failure sound effect:

  https://freesound.org/people/suntemple/sounds/253174/

  bgm:

  https://freesound.org/people/zagi2/sounds/248117/

  */

}

​

function setup() {

  new Canvas(640, 1280);

  noSmooth();

  bgY1 = height / 2;

  bgY2 = -height / 2;

​

  //loadAni

  heroBullet = new Group();

  heroBullet.addAni("fly", "sprite/heroBullet/bullet.png");

  heroBullet.vel.y = -bulletSp;

  heroBullet.vel.x = 0;

  heroBullet.rotationLock = true;

  heroBullet.scale = 10;

  heroBullet.rotationLock = true;

  // console.log(heroBullet.collider);

​

  heroPlane = new Sprite(width / 2, height / 2 + 40, 8, 8, "kinematic");

  heroPlane.addAni("left", "sprite/hero/heroPlaneL.png");

  heroPlane.addAni("right", "sprite/hero/heroPlaneR.png");

  heroPlane.addAni("fly", "sprite/hero/heroPlane.png");

  heroPlane.scale = 10;

  heroPlane.rotationLock = true;

​

  // testTarget = new Sprite(width / 2, 10);

  //common enemy1

  commonEnemy = new Group();

  commonEnemy.addAni("sprite/enemy/common1.png");

  commonEnemy.vel.y = 5;

  commonEnemy.scale = 10;

  commonEnemy.rotationLock = true;

  //common enemy2

  fastEnemy = new Group();

  fastEnemy.addAni("sprite/enemy/common2.png");

  fastEnemy.vel.y = 8;

  fastEnemy.scale = 10;

  fastEnemy.rotationLock = true;

  miniBoss = new Group();

  miniBoss.addAni("sprite/enemy/common4.png");

  miniBoss.scale = 12;

  miniBoss.rotationLock = true;

​

  //enemy overlap bullet

  // testTarget.overlaps(heroBullet,destroyE);

  commonEnemy.overlaps(heroBullet, destroyE);

  fastEnemy.overlaps(heroBullet, destroyE);

  heroPlane.overlaps(commonEnemy, hitPlayer);

  heroPlane.overlaps(fastEnemy, hitPlayer);

  fastEnemy.overlaps(commonEnemy);

  miniBoss.overlaps(commonEnemy);

  miniBoss.overlaps(fastEnemy);

  miniBoss.overlaps(heroBullet);

  heroBullet.overlaps(heroBullet);

  bgm.loop();

}

​

function draw() {

  background(0);

  imageMode(CENTER);

  scrollingBg();

  heroController();

  cheatMaster();

​

  //spawner list

  enemySpawner(60, commonEnemy, 2, 7, 5);

  enemySpawner(130, commonEnemy, 2, 7, 5);

​

  enemySpawner(280,commonEnemy,3,7,5);

  enemySpawner(360,commonEnemy,3,7,5);

  enemySpawner(450, fastEnemy, 1, 7, 5);

  enemySpawner(650,commonEnemy,4,7,5);

  enemySpawner(700, fastEnemy, 2, 7, 5);

  enemySpawner(1100, fastEnemy, 1, 7, 5);

  enemySpawner(1150, fastEnemy, 2, 7, 5);

  enemySpawner(1200,commonEnemy,5,7,5);

  enemySpawner(1600, fastEnemy, 1, 7, 5);

  enemySpawner(1650, fastEnemy, 1, 7, 5);

  enemySpawner(1700, fastEnemy, 1, 7, 5);

  // bossSpawner(1800,miniBoss,1,7,5)

  // miniBossController();

}

​

function heroController() {

  movementController(sp, 40);

  powerController();

  cheatMaster();

​

  if (playerHurt == false) {

    if (hitCounter >= afterHit) {

      playerHurt = true;

    } else {

      hitCounter++;

    }

  }

}

​

function scrollingBg() {

  /*

  DONE:

  make the background looping

  */

  if(bgY1 >= 3* height / 2)

    {

      bgY1 = -height/2

    }

  else

    {

      bgY1 += bgSp;

    }

    if(bgY2 >= 3* height / 2)

    {

      bgY2 = -height/2

    }

  else

    {

      bgY2 += bgSp;

    }

  image(star, width / 2, bgY1,star.width * 5, star.height * 5);

  image(star, width / 2, bgY2,star.width * 5, star.height * 5);

}

​

function destroyE(target, bullet) {

  //when the bullet hit enemy, destroy it

  target.remove();

  //remove the bullet as well

  bullet.remove();

  /*

  need to be done:

  explosion when the target is destroyed

  */

}

​

function shootController(CD) {

  if (kb.pressing(" ") && shootCounter <= 0) {

    //if the counter is 0, spawn a bullet

    new heroBullet.Sprite(heroPlane.x, heroPlane.y, 3, 6, "kinematic");

    // if(powerUp == 0)

    //   {

        shoot.play(0,1,0.3);

      // }

    //when the bullet is shot, set the counter to CD

    shootCounter = CD;

    // console.log("shoot")

  }

​

  if (shootCounter >= 0) {

    //if the counter is not 0, reduce to 0 gradually

    shootCounter--;

  }

}

​

function enemySpawner(time, type, number, collX, collY) {

  /*

  adjust the generator so that the sprites would not overlap

  update 11.22: this function is finished

  */

  let gap = collX;

  let block = width / number;

  if (frameCount == time) {

    for (i = 0; i <= number - 1; i++) {

      new type.Sprite(

        random(i * block + gap, (i + 1) * block - gap),

        0,

        collX,

        collY

      );

    }

  }

}

​

function bossSpawner(time, type, number, collX, collY) {

  let gap = collX;

  let block = width / number;

  if (frameCount == time) {

      new type.Sprite(

        width / 2,

        0,

        collX,

        collY

      );

  }

}

​

// function miniBossController()

// {

//   if (miniBoss.y >= 100)

//     {

//       miniBoss.vel.y = 0;

//       miniBoss.vel.x = 5;

//     }

//   else

//     {

//       miniBoss.vel.y = 1;

//     }

// }

​

function movementController(sp, size) {

  //movement controller

  if (kb.pressing("ArrowLeft") && !kb.pressing("ArrowRight")) {

    heroPlane.ani = "left";

    if (heroPlane.x >= size) {

      heroPlane.vel.x = -sp;

    }

  } else if (kb.pressing("ArrowRight") && !kb.pressing("ArrowLeft")) {

    heroPlane.ani = "right";

    if (heroPlane.x <= width - size) {

      heroPlane.vel.x = sp;

    }

  } else {

    heroPlane.ani = "fly";

    heroPlane.vel.x = 0;

  }

​

  //stuff that deal with strange bug starts HERE, DON'T DELETE!!!!

  if (heroPlane.x >= width - size && !kb.pressing("ArrowLeft")) {

    heroPlane.ani = "fly";

    heroPlane.vel.x = 0;

  }

  if (heroPlane.x <= size && !kb.pressing("ArrowRight")) {

    heroPlane.ani = "fly";

    heroPlane.vel.x = 0;

  }

  //bug dealer ends HERE

​

  if (kb.pressing("ArrowUp") && heroPlane.y >= size) {

    heroPlane.vel.y = -sp;

  } else if (kb.pressing("ArrowDown") && heroPlane.y <= height - size) {

    heroPlane.vel.y = sp;

  } else {

    heroPlane.vel.y = 0;

  }

}

​

function cheatMaster() {

  //cheat stuff

  if (kb.presses("1")) {

    //to more bullet

    powerUp = 1;

  }

  if (kb.presses("0")) {

    //to normal

    powerUp = 0;

  }

}

​

function powerController() {

  if (powerUp == 0) {

    shootController(shootCD);

  }

​

  if (powerUp == 1) {

    shootController(powerUp1CD);

    generalCount1 ++;

    if(generalCount1 >= up1Time)

      {

        powerUp = 0;

        generalCount1 = 0;

      }

  }

}

​

function hitPlayer(hero, enemy) {

  enemy.remove();

  /*

  need to do:

  player plane turn red if hit

  */

  if (playerHurt == true) {

    heroHP--;

    playerHurt = false;

    console.log("you r hurt");

  } else {

    console.log("lucky you");

  }

}

​