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phaser/src/input/Gamepad.js
photonstorm 2d08fab48e When creating a Sprite (via Group.create or directly) with exists = false and a P2 body, the body is not added to the world. 
Every Input class now checks to see if it has already been started. If so it doesn't add the listeners again unless they have been nulled.
2014-03-19 13:22:04 +00:00

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/**
* @author @karlmacklin <tacklemcclean@gmail.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* The Gamepad class handles looking after gamepad input for your game.
* Remember to call gamepad.start(); expecting input!
*
* HTML5 GAMEPAD API SUPPORT IS AT AN EXPERIMENTAL STAGE!
* At moment of writing this (end of 2013) only Chrome supports parts of it out of the box. Firefox supports it
* via prefs flags (about:config, search gamepad). The browsers map the same controllers differently.
* This class has constans for Windows 7 Chrome mapping of
* XBOX 360 controller.
*
* @class Phaser.Gamepad
* @constructor
* @param {Phaser.Game} game - A reference to the currently running game.
*/
Phaser.Gamepad = function (game) {
/**
* @property {Phaser.Game} game - Local reference to game.
*/
this.game = game;
/**
* @property {Array<Phaser.SinglePad>} _gamepads - The four Phaser Gamepads.
* @private
*/
this._gamepads = [
new Phaser.SinglePad(game, this),
new Phaser.SinglePad(game, this),
new Phaser.SinglePad(game, this),
new Phaser.SinglePad(game, this)
];
/**
* @property {Object} _gamepadIndexMap - Maps the browsers gamepad indices to our Phaser Gamepads
* @private
*/
this._gamepadIndexMap = {};
/**
* @property {Array} _rawPads - The raw state of the gamepads from the browser
* @private
*/
this._rawPads = [];
/**
* @property {boolean} _active - Private flag for whether or not the API is polled
* @private
* @default
*/
this._active = false;
/**
* You can disable all Gamepad Input by setting disabled to true. While true all new input related events will be ignored.
* @property {boolean} disabled - The disabled state of the Gamepad.
* @default
*/
this.disabled = false;
/**
* Whether or not gamepads are supported in the current browser. Note that as of Dec. 2013 this check is actually not accurate at all due to poor implementation.
* @property {boolean} _gamepadSupportAvailable - Are gamepads supported in this browser or not?
* @private
*/
this._gamepadSupportAvailable = !!navigator.webkitGetGamepads || !!navigator.webkitGamepads || (navigator.userAgent.indexOf('Firefox/') != -1) || !!navigator.getGamepads;
/**
* Used to check for differences between earlier polls and current state of gamepads.
* @property {Array} _prevRawGamepadTypes
* @private
* @default
*/
this._prevRawGamepadTypes = [];
/**
* Used to check for differences between earlier polls and current state of gamepads.
* @property {Array} _prevTimestamps
* @private
* @default
*/
this._prevTimestamps = [];
/**
* @property {Object} callbackContext - The context under which the callbacks are run.
*/
this.callbackContext = this;
/**
* @property {function} onConnectCallback - This callback is invoked every time any gamepad is connected
*/
this.onConnectCallback = null;
/**
* @property {function} onDisconnectCallback - This callback is invoked every time any gamepad is disconnected
*/
this.onDisconnectCallback = null;
/**
* @property {function} onDownCallback - This callback is invoked every time any gamepad button is pressed down.
*/
this.onDownCallback = null;
/**
* @property {function} onUpCallback - This callback is invoked every time any gamepad button is released.
*/
this.onUpCallback = null;
/**
* @property {function} onAxisCallback - This callback is invoked every time any gamepad axis is changed.
*/
this.onAxisCallback = null;
/**
* @property {function} onFloatCallback - This callback is invoked every time any gamepad button is changed to a value where value > 0 and value < 1.
*/
this.onFloatCallback = null;
/**
* @property {function} _ongamepadconnected - Private callback for Firefox gamepad connection handling
* @private
*/
this._ongamepadconnected = null;
/**
* @property {function} _gamepaddisconnected - Private callback for Firefox gamepad connection handling
* @private
*/
this._gamepaddisconnected = null;
};
Phaser.Gamepad.prototype = {
/**
* Add callbacks to the main Gamepad handler to handle connect/disconnect/button down/button up/axis change/float value buttons
* @method Phaser.Gamepad#addCallbacks
* @param {Object} context - The context under which the callbacks are run.
* @param {Object} callbacks - Object that takes six different callback methods:
* onConnectCallback, onDisconnectCallback, onDownCallback, onUpCallback, onAxisCallback, onFloatCallback
*/
addCallbacks: function (context, callbacks) {
if (typeof callbacks !== 'undefined')
{
this.onConnectCallback = (typeof callbacks.onConnect === 'function') ? callbacks.onConnect : this.onConnectCallback;
this.onDisconnectCallback = (typeof callbacks.onDisconnect === 'function') ? callbacks.onDisconnect : this.onDisconnectCallback;
this.onDownCallback = (typeof callbacks.onDown === 'function') ? callbacks.onDown : this.onDownCallback;
this.onUpCallback = (typeof callbacks.onUp === 'function') ? callbacks.onUp : this.onUpCallback;
this.onAxisCallback = (typeof callbacks.onAxis === 'function') ? callbacks.onAxis : this.onAxisCallback;
this.onFloatCallback = (typeof callbacks.onFloat === 'function') ? callbacks.onFloat : this.onFloatCallback;
}
},
/**
* Starts the Gamepad event handling.
* This MUST be called manually before Phaser will start polling the Gamepad API.
*
* @method Phaser.Gamepad#start
*/
start: function () {
if (this._active)
{
// Avoid setting multiple listeners
return;
}
this._active = true;
var _this = this;
this._ongamepadconnected = function(event) {
var newPad = event.gamepad;
_this._rawPads.push(newPad);
_this._gamepads[newPad.index].connect(newPad);
};
window.addEventListener('gamepadconnected', this._ongamepadconnected, false);
this._ongamepaddisconnected = function(event) {
var removedPad = event.gamepad;
for (var i in _this._rawPads)
{
if (_this._rawPads[i].index === removedPad.index)
{
_this._rawPads.splice(i,1);
}
}
_this._gamepads[removedPad.index].disconnect();
};
window.addEventListener('gamepaddisconnected', this._ongamepaddisconnected, false);
},
/**
* Main gamepad update loop. Should not be called manually.
* @method Phaser.Gamepad#update
* @private
*/
update: function () {
this._pollGamepads();
for (var i = 0; i < this._gamepads.length; i++)
{
if (this._gamepads[i]._connected)
{
this._gamepads[i].pollStatus();
}
}
},
/**
* Updating connected gamepads (for Google Chrome).
* Should not be called manually.
* @method Phaser.Gamepad#_pollGamepads
* @private
*/
_pollGamepads: function () {
var rawGamepads = navigator.getGamepads || (navigator.webkitGetGamepads && navigator.webkitGetGamepads()) || navigator.webkitGamepads;
if (rawGamepads)
{
this._rawPads = [];
var gamepadsChanged = false;
for (var i = 0; i < rawGamepads.length; i++)
{
if (typeof rawGamepads[i] !== this._prevRawGamepadTypes[i])
{
gamepadsChanged = true;
this._prevRawGamepadTypes[i] = typeof rawGamepads[i];
}
if (rawGamepads[i])
{
this._rawPads.push(rawGamepads[i]);
}
// Support max 4 pads at the moment
if (i === 3)
{
break;
}
}
if (gamepadsChanged)
{
var validConnections = { rawIndices: {}, padIndices: {} };
var singlePad;
for (var j = 0; j < this._gamepads.length; j++)
{
singlePad = this._gamepads[j];
if (singlePad.connected)
{
for (var k = 0; k < this._rawPads.length; k++)
{
if (this._rawPads[k].index === singlePad.index)
{
validConnections.rawIndices[singlePad.index] = true;
validConnections.padIndices[j] = true;
}
}
}
}
for (var l = 0; l < this._gamepads.length; l++)
{
singlePad = this._gamepads[l];
if (validConnections.padIndices[l])
{
continue;
}
if (this._rawPads.length < 1)
{
singlePad.disconnect();
}
for (var m = 0; m < this._rawPads.length; m++)
{
if (validConnections.padIndices[l])
{
break;
}
var rawPad = this._rawPads[m];
if (rawPad)
{
if (validConnections.rawIndices[rawPad.index])
{
singlePad.disconnect();
continue;
}
else
{
singlePad.connect(rawPad);
validConnections.rawIndices[rawPad.index] = true;
validConnections.padIndices[l] = true;
}
}
else
{
singlePad.disconnect();
}
}
}
}
}
},
/**
* Sets the deadZone variable for all four gamepads
* @method Phaser.Gamepad#setDeadZones
*/
setDeadZones: function (value) {
for (var i = 0; i < this._gamepads.length; i++)
{
this._gamepads[i].deadZone = value;
}
},
/**
* Stops the Gamepad event handling.
*
* @method Phaser.Gamepad#stop
*/
stop: function () {
this._active = false;
window.removeEventListener('gamepadconnected', this._ongamepadconnected);
window.removeEventListener('gamepaddisconnected', this._ongamepaddisconnected);
},
/**
* Reset all buttons/axes of all gamepads
* @method Phaser.Gamepad#reset
*/
reset: function () {
this.update();
for (var i = 0; i < this._gamepads.length; i++)
{
this._gamepads[i].reset();
}
},
/**
* Returns the "just pressed" state of a button from ANY gamepad connected. Just pressed is considered true if the button was pressed down within the duration given (default 250ms).
* @method Phaser.Gamepad#justPressed
* @param {number} buttonCode - The buttonCode of the button to check for.
* @param {number} [duration=250] - The duration below which the button is considered as being just pressed.
* @return {boolean} True if the button is just pressed otherwise false.
*/
justPressed: function (buttonCode, duration) {
for (var i = 0; i < this._gamepads.length; i++)
{
if (this._gamepads[i].justPressed(buttonCode, duration) === true)
{
return true;
}
}
return false;
},
/**
* Returns the "just released" state of a button from ANY gamepad connected. Just released is considered as being true if the button was released within the duration given (default 250ms).
* @method Phaser.Gamepad#justPressed
* @param {number} buttonCode - The buttonCode of the button to check for.
* @param {number} [duration=250] - The duration below which the button is considered as being just released.
* @return {boolean} True if the button is just released otherwise false.
*/
justReleased: function (buttonCode, duration) {
for (var i = 0; i < this._gamepads.length; i++)
{
if (this._gamepads[i].justReleased(buttonCode, duration) === true)
{
return true;
}
}
return false;
},
/**
* Returns true if the button is currently pressed down, on ANY gamepad.
* @method Phaser.Gamepad#isDown
* @param {number} buttonCode - The buttonCode of the button to check for.
* @return {boolean} True if a button is currently down.
*/
isDown: function (buttonCode) {
for (var i = 0; i < this._gamepads.length; i++)
{
if (this._gamepads[i].isDown(buttonCode) === true)
{
return true;
}
}
return false;
}
};
Phaser.Gamepad.prototype.constructor = Phaser.Gamepad;
/**
* If the gamepad input is active or not - if not active it should not be updated from Input.js
* @name Phaser.Gamepad#active
* @property {boolean} active - If the gamepad input is active or not.
* @readonly
*/
Object.defineProperty(Phaser.Gamepad.prototype, "active", {
get: function () {
return this._active;
}
});
/**
* Whether or not gamepads are supported in current browser.
* @name Phaser.Gamepad#supported
* @property {boolean} supported - Whether or not gamepads are supported in current browser.
* @readonly
*/
Object.defineProperty(Phaser.Gamepad.prototype, "supported", {
get: function () {
return this._gamepadSupportAvailable;
}
});
/**
* How many live gamepads are currently connected.
* @name Phaser.Gamepad#padsConnected
* @property {boolean} padsConnected - How many live gamepads are currently connected.
* @readonly
*/
Object.defineProperty(Phaser.Gamepad.prototype, "padsConnected", {
get: function () {
return this._rawPads.length;
}
});
/**
* Gamepad #1
* @name Phaser.Gamepad#pad1
* @property {boolean} pad1 - Gamepad #1;
* @readonly
*/
Object.defineProperty(Phaser.Gamepad.prototype, "pad1", {
get: function () {
return this._gamepads[0];
}
});
/**
* Gamepad #2
* @name Phaser.Gamepad#pad2
* @property {boolean} pad2 - Gamepad #2
* @readonly
*/
Object.defineProperty(Phaser.Gamepad.prototype, "pad2", {
get: function () {
return this._gamepads[1];
}
});
/**
* Gamepad #3
* @name Phaser.Gamepad#pad3
* @property {boolean} pad3 - Gamepad #3
* @readonly
*/
Object.defineProperty(Phaser.Gamepad.prototype, "pad3", {
get: function () {
return this._gamepads[2];
}
});
/**
* Gamepad #4
* @name Phaser.Gamepad#pad4
* @property {boolean} pad4 - Gamepad #4
* @readonly
*/
Object.defineProperty(Phaser.Gamepad.prototype, "pad4", {
get: function () {
return this._gamepads[3];
}
});
Phaser.Gamepad.BUTTON_0 = 0;
Phaser.Gamepad.BUTTON_1 = 1;
Phaser.Gamepad.BUTTON_2 = 2;
Phaser.Gamepad.BUTTON_3 = 3;
Phaser.Gamepad.BUTTON_4 = 4;
Phaser.Gamepad.BUTTON_5 = 5;
Phaser.Gamepad.BUTTON_6 = 6;
Phaser.Gamepad.BUTTON_7 = 7;
Phaser.Gamepad.BUTTON_8 = 8;
Phaser.Gamepad.BUTTON_9 = 9;
Phaser.Gamepad.BUTTON_10 = 10;
Phaser.Gamepad.BUTTON_11 = 11;
Phaser.Gamepad.BUTTON_12 = 12;
Phaser.Gamepad.BUTTON_13 = 13;
Phaser.Gamepad.BUTTON_14 = 14;
Phaser.Gamepad.BUTTON_15 = 15;
Phaser.Gamepad.AXIS_0 = 0;
Phaser.Gamepad.AXIS_1 = 1;
Phaser.Gamepad.AXIS_2 = 2;
Phaser.Gamepad.AXIS_3 = 3;
Phaser.Gamepad.AXIS_4 = 4;
Phaser.Gamepad.AXIS_5 = 5;
Phaser.Gamepad.AXIS_6 = 6;
Phaser.Gamepad.AXIS_7 = 7;
Phaser.Gamepad.AXIS_8 = 8;
Phaser.Gamepad.AXIS_9 = 9;
// Below mapping applies to XBOX 360 Wired and Wireless controller on Google Chrome (tested on Windows 7).
// - Firefox uses different map! Separate amount of buttons and axes. DPAD = axis and not a button.
// In other words - discrepancies when using gamepads.
Phaser.Gamepad.XBOX360_A = 0;
Phaser.Gamepad.XBOX360_B = 1;
Phaser.Gamepad.XBOX360_X = 2;
Phaser.Gamepad.XBOX360_Y = 3;
Phaser.Gamepad.XBOX360_LEFT_BUMPER = 4;
Phaser.Gamepad.XBOX360_RIGHT_BUMPER = 5;
Phaser.Gamepad.XBOX360_LEFT_TRIGGER = 6;
Phaser.Gamepad.XBOX360_RIGHT_TRIGGER = 7;
Phaser.Gamepad.XBOX360_BACK = 8;
Phaser.Gamepad.XBOX360_START = 9;
Phaser.Gamepad.XBOX360_STICK_LEFT_BUTTON = 10;
Phaser.Gamepad.XBOX360_STICK_RIGHT_BUTTON = 11;
Phaser.Gamepad.XBOX360_DPAD_LEFT = 14;
Phaser.Gamepad.XBOX360_DPAD_RIGHT = 15;
Phaser.Gamepad.XBOX360_DPAD_UP = 12;
Phaser.Gamepad.XBOX360_DPAD_DOWN = 13;
Phaser.Gamepad.XBOX360_STICK_LEFT_X = 0;
Phaser.Gamepad.XBOX360_STICK_LEFT_Y = 1;
Phaser.Gamepad.XBOX360_STICK_RIGHT_X = 2;
Phaser.Gamepad.XBOX360_STICK_RIGHT_Y = 3;
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