breakout/breakout.js

/* Arkanoid level is 10x10 */
var score = 0;
var highscore = 0;
var lives = 3;

var brick = World.spawn(gameobjects['brick']);
var brickbb = brick.char.boundingbox;
var bwidth = brickbb.r - brickbb.l;
var bheight = brickbb.t-brickbb.b;
brick.kill();

var rows = 15;
var cols = 13;

var lvlwidth = bwidth*cols;
var lvlheight = 600;

//var frameworld = World

var f = World.spawn(gameobjects['edge2d']);
f.edge2d.thickness = 10;
f.edge2d.cpoints = Geometry.box(lvlwidth+f.edge2d.thickness*2,lvlheight);
f.draw = function() {
  Debug.line(f.edge2d.points, Color.green, 0, f.edge2d.thickness*2);
};

register_draw(f.draw,f);

var fitbricks = Math.floor(lvlwidth/bwidth);

var wingame = function() {
  allballs.forEach(x=>x.kill());
  Log.warn("WINNER");
  Player.players[0].uncontrol(paddle);

  register_gui(function() {
    GUI.text("WINNER", Window.dimensions.scale(0.5));
  });
}

/* Spawn bricks */
if (!IO.exists('lvl1.json')) {
  var lvl1 = {};
  lvl1.bricks = [];

  for (var i = 0; i < rows; i++) {
    lvl1.bricks.push([]);
    for (var j = 0; j < cols; j++) {
      lvl1.bricks[i].push(1);
    }
  }
  
  IO.slurpwrite(JSON.stringify(lvl1), 'lvl1.json');
}

Color.Arkanoid = {
  white: [0,0,0,255],
  orange: [255,143,0,255],
  teal: [0,255,255,255],
  green: [0,255,0,255],
  red: [255,0,0,255],
  blue: [0,112,255,255],
  purple: [255,0,255,255],
  yellow: [255,255,0],
  silver: [157,157,157],
  gold: [188,174,0],
};

Color.Arkanoid.Powerups = {
  red: [174,0,0], /* laser */
  blue: [0,0,174], /* enlarge */
  green: [0,174,0], /* catch */
  orange: [224,143,0], /* slow */
  purple: [210,0,210], /* break */
  cyan: [0,174,255], /* disruption */
  gray: [143,143,143] /* 1up */
};

var lvl = JSON.parse(IO.slurp("lvl1.json"));

for (var row = 0; row < rows; row++) {
  for (var col = 0; col < cols; col++) {
    if (lvl.bricks[row][col] === 0)
      continue;
      
    var brick = World.spawn(gameobjects['brick']);
    brick.powerup = function() {
      if (Math.random() < 0.1)
        spawn_random_powerup(this.pos);
	
      if (this.instances === 1)
        wingame();
    };
    
//    brick.char.color = bcolor;
    var startrow = lvlheight/2-bheight*2; // one brick gap between top and brick start
    var x = -(cols/2) * bwidth;
    var pos = [x+bwidth*col+bwidth/2, startrow-bheight*row];
    brick.pos = pos;
  }
}

var flashtimer = timer.make(function() {
  if (gameobjects['brick'].instances.length === 0) {
    flashtimer.kill();
    return;
  }
  var idx = Math.randomint(gameobjects['brick'].instances.length);
  gameobjects['brick'].instances[idx].flash();
  flashtimer.time = Math.random_range(1,3);
}, Math.random_range(1,3));

var paddle = World.spawn(gameobjects['paddle']);
paddle.extents = lvlwidth/2 - f.edge2d.thickness;
paddle.pos = [0,-lvlheight/2+paddle.height*4];
paddle.setgrow(3);
paddle.lasership();

Gamestate.spawnball = function() {
  var bb = World.spawn(gameobjects['ball']);
  bb.pos = bb.pos.add([0,-200]);
  bb.velocity = [30,200];
  bb.draw_layer = 3;
  bb.tag = 'ball';
}

var powerups = {};

function mk_pup(color, fn, weight) {
  weight ??= 1;
  var o = {};
  o.color = color;
  o.fn = fn;
  o.weight = weight;
  return o;
};

powerups.laser = mk_pup(Color.Arkanoid.Powerups.red, function() {
  paddle.lasership();
});
powerups.enlarge = mk_pup(Color.Arkanoid.Powerups.blue, function() { paddle.grow(); });
powerups.catch = mk_pup(Color.Arkanoid.Powerups.green, function() {
  paddle.sticky = true;
});
powerups.slow = mk_pup(Color.Arkanoid.Powerups.orange, function() {
  /* Slow all balls */
  gameobjects['ball'].instances.forEach(function(x) {
    x.velocity = x.velocity.scale(0.5);
  });
});
powerups.break = mk_pup(Color.Arkanoid.Powerups.purple, function() {
  clear_level();
}, 0.5);
powerups.disruption = mk_pup(Color.Arkanoid.Powerups.cyan, function() {
  var ball = gameobjects['ball'].instances[0];
  if (!ball) return;

  ball.instandup();
  ball.instandup();
});
powerups.player = mk_pup(Color.Arkanoid.Powerups.gray, function() {
  lives += 1;
}, 0.5);

function select_weighted(objs)
{
  var total = 0;
  var total = objs.reduce(function(acc, item) { acc += item.weight; return acc; }, 0);
  var selection = Math.random() * total;

  var i;
  for (i = 0; i < objs.length-1; i++) {
    selection -= objs[i].weight;
    if (selection <= 0)
      return objs[i];
   };

  return objs.last;
}

function select_weighted_binary(objs)
{
  var mobjs = objs.slice();
  mobjs[0].total = 0;
  for (var i = 1; i < mobjs.length; i++)
    mobjs[i].total = mobjs[i-1].total + mobjs[i].weight;

  var select = Math.random() * mobjs.last.total
  var obj = Math.floor((mobjs.length-1)/2);

  while (mobjs.length > 0) {
    if (select < mobjs[obj].total) {
      mobjs.splice(obj,obj-1);
      obj = Math.floor((mobjs.length-1)/2);
    } else if (select > mobjs[obj+1].total) {
      mobjs.splice(0,obj-1);
      obj = Math.floor((mobjs.length-1)/2);
    } else
      return mobjs[obj];
  }

  return mobjs[obj];
}

var last_powerup = {};

function spawn_random_powerup(pos)
{
  if (gameobjects['upgrade_drop'].instances.length !== 0) return;
  var p = World.spawn(gameobjects['upgrade_drop']);
  p.pos = pos;

  var power = select_weighted(powerups.array());
  if (last_powerup === power)
    power = powerups.disruption;

  last_powerup = power;
    
  p.color = power.color;
  p.upgrade = power.fn;
}

function spawn_powerup(pos, fn) {
  var p = World.spawn(gameobjects['upgrade_drop']);
  p.pos = pos;
  p.upgrade = fn;
  return p;
}

function multiball(n) {
  for (var i = 0; i < n; i++)
    Gamestate.spawnball();
}

function lostball()
{
  if (gameobjects['ball'].instances.length === 0)
    lostlife();
};

function lostgame()
{
  Log.warn("LOSER");
  backtomain();
}

function lostlife() {
  lives--;

  if (lives === 0)
    lostgame();
  else
    Gamestate.spawnball();
};

Gamestate.spawnball();
var killbox = World.spawn(gameobjects['polygon2d']);

killbox.polygon2d.points = Geometry.box(lvlwidth,30);
killbox.pos = [0,-lvlheight/2];
killbox.polygon2d.sensor = true;
killbox.register_hit(hit => {
  if (hit.obj.tag === 'ball') {
    hit.obj.kill();
    lostball();
  }

}, killbox);

//Sound.play("start.wav");

var pause = {
  gui() {
    var pausecolor = [0,0,0,100];
    Debug.box(Window.dimensions.scale(0.5), Window.dimensions, pausecolor);
    GUI.text_fn("PAUSE", {font_size: 3, anchor: [0.5,0.5]}).draw(Window.dimensions.scale([0.5,0.5]));
  },

  unpause() {
    unregister_gui(pause.gui);
    sim_start();
  },

  input_escape_pressed() {
    pause.unpause();
    Player.players[0].control(gamepawn);
  },
};
  

var gamepawn = 
{
  pause() {
    register_gui(pause.gui);
    sim_pause();
  },
  
  input_escape_pressed() {
    backtomain();
    return;
    this.pause();
    Player.players[0].uncontrol(gamepawn);
    Player.players[0].control(pause);
  },

  input_o_pressed() {
    clear_level();
  },
}

function clear_level() {
  var bricks = gameobjects['brick'].instances.slice();
  bricks.forEach(function(x) { x.kill(); });
};

function gamegui() {
  GUI.column({
    items: [
    GUI.text_fn("SCORE", {color: Color.red}),
    GUI.text_fn(`${score}`),
    GUI.text_fn("HIGH SCORE", {color: Color.red}),
    GUI.text_fn(`${highscore}`),
    GUI.text_fn(`BRICKS: ${gameobjects['brick'].instances.length}`),
    GUI.text_fn(`BALLS IN PLAY: ${gameobjects['ball'].instances.length}`),
    
    GUI.text_fn(`LIVES: ${lives}`),
    GUI.text_fn("YARKANOID", {color: [5,120,240,255]}),

    GUI.text_fn("ODPLOT GAMES"),
    GUI.text_fn("[C] 2023"),
    ]
  }).draw(Window.dimensions.scale([0.8,0.8]));
}

register_gui(gamegui);

Player.players[0].control(gamepawn);

let backtomain = function()
{
  World.clear();  
  run("startmenu.js");
  unregister_gui(gamegui);
  Player.players[0].uncontrol(gamepawn);
}