// Coding Challenge #5: Space Invaders 

// https://youtu.be/biN3v3ef-Y0

​

​

var ship;

var flowers = [];

var drops = [];

var gameover = false;

var score = 0;

var Hscore = 0;

var scl=2;

​

function setup() {

  createCanvas(640*scl, 400*scl);

  rectMode(CENTER);

​

  ship = new Ship();

​

  for (let i = 0; i < 5; i++) {

    flowers[i] = new Flower(i * 80 + 80, 60);

  }

}

​

function draw() {

  if (!gameover) {

    background(60);

    for (let i = drops.length - 1; i >= 0; i--) {

      drops[i].show();

      drops[i].move();

      if (drops[i].x < -10) {

        drops.splice(i, 1);

      }

​

      for (let j = flowers.length - 1; j >= 0; j--) {

        if (drops[i].hits(flowers[j])) {

          flowers[j].heart -= 15;

          drops.splice(i, 1);

          break;

        }

      }

    }

​

    let ouT = false;

    for (let j = flowers.length - 1; j >= 0; j--) {

      flowers[j].show();

      flowers[j].move();

​

      if (flowers[j].y > height) {

        gameover = true;

      }

​

      if (flowers[j].x > width - flowers[j].w - 20 || flowers[j].x < flowers[j].w + 20) {

        ouT = true;

      }

​

      if (flowers[j].dead()) {

        flowers.push(new Flower(this.flowers[j].x, 60))

        flowers.splice(j, 1);

        score++;

      }

    }

    if (ouT) {

      for (let j = flowers.length - 1; j >= 0; j--) {

        flowers[j].shiftDown();

      }

    }

    ship.move();

    ship.show();

    drawScore();

​

  } else {

    if (score > Hscore) {

      Hscore = score;

    }

    background(255, 0, 0);

    textAlign(CENTER);

    fill(255);

    noStroke();

    textSize(48);

    if (score == Hscore) {

      text('High Score: ' + Hscore, width / 2, height / 2 + 50)

    } else {

      text('Your Score: ' + score, width / 2, height / 2 + 50);

​

      textSize(20);

      text('High Score: ' + Hscore, width / 2, height / 2 + 80);

    }

    textSize(72);

    text('GAMEOVER!', width / 2, height / 2 - 20)

    textSize(12);

    text('Press spacebar to start again', width / 2, height - 15)

  }

}

​

function drawScore() {

  textAlign(LEFT);

  noStroke();

  textSize(16);

  if (Hscore == 0) {

    fill(255);

    text('Score: ' + score, 10, 20)

​

  } else if (score <= Hscore) {

​

    fill(255);

    text('Score: ' + score, 10, 20)

    fill(128);

    text('High Score: ' + Hscore, 10, 40)

  } else if (score > Hscore) {

    fill(255);

    text('New High Score: ' + score, 10, 20)

  }

​

}

​

function keyReleased() {

  if (key !== ' ') {

    ship.setDir(0);

  }

}

​

function keyPressed() {

  if (key === ' ') {

    var drop = new Drop(ship.x, ship.y);

    drops.push(drop);

  }

  if (gameover && key === ' ') {

    gameover = false;

    score = 0;

    flowers = [];

    drops = [];

    for (let i = 0; i < 5; i++) {

      flowers[i] = new Flower(i * 80 + 80, 60);

    }

  }

  if (keyCode === RIGHT_ARROW) {

    ship.setDir(1);

  } else if (keyCode === LEFT_ARROW) {

    ship.setDir(-1);

  }

}