added timer master
[2048.git] / js / keyboard_input_manager.js
Gabriele Cirulli


Marcin Gajda





Chris Price




Gabriele Cirulli

























Gabriele Cirulli



Gabriele Cirulli



Gabriele Cirulli

Gabriele Cirulli
Gabriele Cirulli
Gabriele Cirulli
Gabriele Cirulli


Gabriele Cirulli




Gabriele Cirulli
Gabriele Cirulli




Gabriele Cirulli
Gabriele Cirulli
Gabriele Cirulli



Laurent Margirier
Gabriele Cirulli
Chris Price
Gabriele Cirulli
Gabriele Cirulli
Marcin Gajda








Marcin Gajda
Gabriele Cirulli

Marcin Gajda
Gabriele Cirulli
Chris Price
Gabriele Cirulli
Gabriele Cirulli
Marcin Gajda
Chris Price

Gabriele Cirulli
Marcin Gajda




Marcin Gajda

Gabriele Cirulli



Marcin Gajda
Gabriele Cirulli

Marcin Gajda
Gabriele Cirulli
Marcin Gajda
Chris Price
Gabriele Cirulli
Marcin Gajda
Chris Price
Gabriele Cirulli

Gabriele Cirulli

Chris Price
Gabriele Cirulli
Gabriele Cirulli




Gabriele Cirulli
Laurent Margirier




Gabriele Cirulli






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function KeyboardInputManager() {
  this.events = {};
 
  if (window.navigator.msPointerEnabled) {
    //Internet Explorer 10 style
    this.eventTouchstart    = "MSPointerDown";
    this.eventTouchmove     = "MSPointerMove";
    this.eventTouchend      = "MSPointerUp";
  } else {
    this.eventTouchstart    = "touchstart";
    this.eventTouchmove     = "touchmove";
    this.eventTouchend      = "touchend";
  }
 
  this.listen();
}
 
KeyboardInputManager.prototype.on = function (event, callback) {
  if (!this.events[event]) {
    this.events[event] = [];
  }
  this.events[event].push(callback);
};
 
KeyboardInputManager.prototype.emit = function (event, data) {
  var callbacks = this.events[event];
  if (callbacks) {
    callbacks.forEach(function (callback) {
      callback(data);
    });
  }
};
 
KeyboardInputManager.prototype.listen = function () {
  var self = this;
 
  var map = {
    38: 0, // Up
    39: 1, // Right
    40: 2, // Down
    37: 3, // Left
    75: 0, // Vim up
    76: 1, // Vim right
    74: 2, // Vim down
    72: 3, // Vim left
    87: 0, // W
    68: 1, // D
    83: 2, // S
    65: 3  // A
  };
 
  // Respond to direction keys
  document.addEventListener("keydown", function (event) {
    var modifiers = event.altKey || event.ctrlKey || event.metaKey ||
                    event.shiftKey;
    var mapped    = map[event.which];
 
    if (!modifiers) {
      if (mapped !== undefined) {
        event.preventDefault();
        self.emit("move", mapped);
      }
    }
 
    // R key restarts the game
    if (!modifiers && event.which === 82) {
      self.restart.call(self, event);
    }
  });
 
  // Respond to button presses
  this.bindButtonPress(".retry-button", this.restart);
  this.bindButtonPress(".restart-button", this.restart);
  this.bindButtonPress(".keep-playing-button", this.keepPlaying);
 
  // Respond to swipe events
  var touchStartClientX, touchStartClientY;
  var gameContainer = document.getElementsByClassName("game-container")[0];
 
  gameContainer.addEventListener(this.eventTouchstart, function (event) {
    if ((!window.navigator.msPointerEnabled && event.touches.length > 1) ||
        event.targetTouches > 1) {
      return; // Ignore if touching with more than 1 finger
    }
 
    if (window.navigator.msPointerEnabled) {
      touchStartClientX = event.pageX;
      touchStartClientY = event.pageY;
    } else {
      touchStartClientX = event.touches[0].clientX;
      touchStartClientY = event.touches[0].clientY;
    }
 
    event.preventDefault();
  });
 
  gameContainer.addEventListener(this.eventTouchmove, function (event) {
    event.preventDefault();
  });
 
  gameContainer.addEventListener(this.eventTouchend, function (event) {
    if ((!window.navigator.msPointerEnabled && event.touches.length > 0) ||
        event.targetTouches > 0) {
      return; // Ignore if still touching with one or more fingers
    }
 
    var touchEndClientX, touchEndClientY;
 
    if (window.navigator.msPointerEnabled) {
      touchEndClientX = event.pageX;
      touchEndClientY = event.pageY;
    } else {
      touchEndClientX = event.changedTouches[0].clientX;
      touchEndClientY = event.changedTouches[0].clientY;
    }
 
    var dx = touchEndClientX - touchStartClientX;
    var absDx = Math.abs(dx);
 
    var dy = touchEndClientY - touchStartClientY;
    var absDy = Math.abs(dy);
 
    if (Math.max(absDx, absDy) > 10) {
      // (right : left) : (down : up)
      self.emit("move", absDx > absDy ? (dx > 0 ? 1 : 3) : (dy > 0 ? 2 : 0));
    }
  });
};
 
KeyboardInputManager.prototype.restart = function (event) {
  event.preventDefault();
  this.emit("restart");
};
 
KeyboardInputManager.prototype.keepPlaying = function (event) {
  event.preventDefault();
  this.emit("keepPlaying");
};
 
KeyboardInputManager.prototype.bindButtonPress = function (selector, fn) {
  var button = document.querySelector(selector);
  button.addEventListener("click", fn.bind(this));
  button.addEventListener(this.eventTouchend, fn.bind(this));
};
 
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