phaser
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A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers.
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<h1 class="page-title">Source: core/Group.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* A Group is a container for display objects that allows for fast pooling and object recycling.
* Groups can be nested within other Groups and have their own local transforms.
*
* @class Phaser.Group
* @constructor
* @param {Phaser.Game} game - A reference to the currently running game.
* @param {Phaser.Group|Phaser.Sprite|null} parent - The parent Group, DisplayObject or DisplayObjectContainer that this Group will be added to. If `undefined` it will use game.world. If null it won't be added to anything.
* @param {string} [name=group] - A name for this Group. Not used internally but useful for debugging.
* @param {boolean} [addToStage=false] - If set to true this Group will be added directly to the Game.Stage instead of Game.World.
* @param {boolean} [enableBody=false] - If true all Sprites created with `Group.create` or `Group.createMulitple` will have a physics body created on them. Change the body type with physicsBodyType.
* @param {number} [physicsBodyType=0] - If enableBody is true this is the type of physics body that is created on new Sprites. Phaser.Physics.ARCADE, Phaser.Physics.P2, Phaser.Physics.NINJA, etc.
*/
Phaser.Group = function (game, parent, name, addToStage, enableBody, physicsBodyType) {
if (typeof addToStage === 'undefined') { addToStage = false; }
if (typeof enableBody === 'undefined') { enableBody = false; }
if (typeof physicsBodyType === 'undefined') { physicsBodyType = Phaser.Physics.ARCADE; }
/**
* @property {Phaser.Game} game - A reference to the currently running Game.
*/
this.game = game;
if (typeof parent === 'undefined')
{
parent = game.world;
}
/**
* @property {string} name - A name for this Group. Not used internally but useful for debugging.
*/
this.name = name || 'group';
PIXI.DisplayObjectContainer.call(this);
if (addToStage)
{
this.game.stage.addChild(this);
}
else
{
if (parent)
{
parent.addChild(this);
}
}
/**
* @property {number} z - The z-depth value of this object within its Group (remember the World is a Group as well). No two objects in a Group can have the same z value.
*/
this.z = 0;
/**
* @property {number} type - Internal Phaser Type value.
* @protected
*/
this.type = Phaser.GROUP;
/**
* @property {boolean} alive - The alive property is useful for Groups that are children of other Groups and need to be included/excluded in checks like forEachAlive.
* @default
*/
this.alive = true;
/**
* @property {boolean} exists - If exists is true the Group is updated, otherwise it is skipped.
* @default
*/
this.exists = true;
/**
* @property {boolean} ignoreDestroy - A Group with `ignoreDestroy` set to `true` ignores all calls to its `destroy` method.
* @default
*/
this.ignoreDestroy = false;
/**
* The type of objects that will be created when you use Group.create or Group.createMultiple. Defaults to Phaser.Sprite.
* When a new object is created it is passed the following parameters to its constructor: game, x, y, key, frame.
* @property {object} classType
* @default
*/
this.classType = Phaser.Sprite;
/**
* @property {Phaser.Group|Phaser.Sprite} parent - The parent of this Group.
*/
/**
* @property {Phaser.Point} scale - The scale of the Group container.
*/
this.scale = new Phaser.Point(1, 1);
/**
* @property {Phaser.Point} pivot - The pivot point of the Group container.
*/
/**
* The cursor is a simple way to iterate through the objects in a Group using the Group.next and Group.previous functions.
* The cursor is set to the first child added to the Group and doesn't change unless you call next, previous or set it directly with Group.cursor.
* @property {any} cursor - The current display object that the Group cursor is pointing to.
*/
this.cursor = null;
/**
* @property {Phaser.Point} cameraOffset - If this object is fixedToCamera then this stores the x/y offset that its drawn at, from the top-left of the camera view.
*/
this.cameraOffset = new Phaser.Point();
/**
* @property {boolean} enableBody - If true all Sprites created by, or added to this Group, will have a physics body enabled on them. Change the body type with `Group.physicsBodyType`.
* @default
*/
this.enableBody = enableBody;
/**
* @property {boolean} enableBodyDebug - If true when a physics body is created (via Group.enableBody) it will create a physics debug object as well. Only works for P2 bodies.
*/
this.enableBodyDebug = false;
/**
* @property {number} physicsBodyType - If Group.enableBody is true this is the type of physics body that is created on new Sprites. Phaser.Physics.ARCADE, Phaser.Physics.P2, Phaser.Physics.NINJA, etc.
*/
this.physicsBodyType = physicsBodyType;
/**
* @property {Phaser.Signal} onDestroy - This signal is dispatched when the parent is destoyed.
*/
this.onDestroy = new Phaser.Signal();
/**
* @property {string} _sortProperty - The property on which children are sorted.
* @private
*/
this._sortProperty = 'z';
/**
* A small internal cache:
* 0 = previous position.x
* 1 = previous position.y
* 2 = previous rotation
* 3 = renderID
* 4 = fresh? (0 = no, 1 = yes)
* 5 = outOfBoundsFired (0 = no, 1 = yes)
* 6 = exists (0 = no, 1 = yes)
* 7 = fixed to camera (0 = no, 1 = yes)
* 8 = cursor index
* 9 = sort order
* @property {Array} _cache
* @private
*/
this._cache = [ 0, 0, 0, 0, 1, 0, 1, 0, 0, 0 ];
};
Phaser.Group.prototype = Object.create(PIXI.DisplayObjectContainer.prototype);
Phaser.Group.prototype.constructor = Phaser.Group;
/**
* @constant
* @type {number}
*/
Phaser.Group.RETURN_NONE = 0;
/**
* @constant
* @type {number}
*/
Phaser.Group.RETURN_TOTAL = 1;
/**
* @constant
* @type {number}
*/
Phaser.Group.RETURN_CHILD = 2;
/**
* @constant
* @type {number}
*/
Phaser.Group.SORT_ASCENDING = -1;
/**
* @constant
* @type {number}
*/
Phaser.Group.SORT_DESCENDING = 1;
/**
* Adds an existing object to this Group. The object can be an instance of Phaser.Sprite, Phaser.Button or any other display object.
* The child is automatically added to the top of the Group, so renders on-top of everything else within the Group. If you need to control
* that then see the addAt method.
*
* @see Phaser.Group#create
* @see Phaser.Group#addAt
* @method Phaser.Group#add
* @param {*} child - An instance of Phaser.Sprite, Phaser.Button or any other display object.
* @param {boolean} [silent=false] - If the silent parameter is `true` the child will not dispatch the onAddedToGroup event.
* @return {*} The child that was added to the Group.
*/
Phaser.Group.prototype.add = function (child, silent) {
if (typeof silent === 'undefined') { silent = false; }
if (child.parent !== this)
{
if (this.enableBody)
{
this.game.physics.enable(child, this.physicsBodyType);
}
this.addChild(child);
child.z = this.children.length;
if (!silent && child.events)
{
child.events.onAddedToGroup.dispatch(child, this);
}
if (this.cursor === null)
{
this.cursor = child;
}
}
return child;
};
/**
* Adds an array existing objects to this Group. The objects can be instances of Phaser.Sprite, Phaser.Button or any other display object.
* The children are automatically added to the top of the Group, so render on-top of everything else within the Group.
* TODO: Add ability to pass the children as parameters rather than having to be an array.
*
* @method Phaser.Group#addMultiple
* @param {array} children - An array containing instances of Phaser.Sprite, Phaser.Button or any other display object.
* @param {boolean} [silent=false] - If the silent parameter is `true` the children will not dispatch the onAddedToGroup event.
* @return {*} The array of children that were added to the Group.
*/
Phaser.Group.prototype.addMultiple = function (children, silent) {
if (Array.isArray(children))
{
for (var i = 0; i < children.length; i++)
{
this.add(children[i], silent);
}
}
return children;
};
/**
* Adds an existing object to this Group. The object can be an instance of Phaser.Sprite, Phaser.Button or any other display object.
* The child is added to the Group at the location specified by the index value, this allows you to control child ordering.
*
* @method Phaser.Group#addAt
* @param {*} child - An instance of Phaser.Sprite, Phaser.Button or any other display object..
* @param {number} index - The index within the Group to insert the child to.
* @param {boolean} [silent=false] - If the silent parameter is `true` the child will not dispatch the onAddedToGroup event.
* @return {*} The child that was added to the Group.
*/
Phaser.Group.prototype.addAt = function (child, index, silent) {
if (typeof silent === 'undefined') { silent = false; }
if (child.parent !== this)
{
if (this.enableBody)
{
this.game.physics.enable(child, this.physicsBodyType);
}
this.addChildAt(child, index);
this.updateZ();
if (!silent && child.events)
{
child.events.onAddedToGroup.dispatch(child, this);
}
if (this.cursor === null)
{
this.cursor = child;
}
}
return child;
};
/**
* Returns the child found at the given index within this Group.
*
* @method Phaser.Group#getAt
* @param {number} index - The index to return the child from.
* @return {*} The child that was found at the given index. If the index was out of bounds then this will return -1.
*/
Phaser.Group.prototype.getAt = function (index) {
if (index < 0 || index >= this.children.length)
{
return -1;
}
else
{
return this.getChildAt(index);
}
};
/**
* Automatically creates a new Phaser.Sprite object and adds it to the top of this Group.
* You can change Group.classType to any object and this call will create an object of that type instead, but it should extend either Sprite or Image.
*
* @method Phaser.Group#create
* @param {number} x - The x coordinate to display the newly created Sprite at. The value is in relation to the Group.x point.
* @param {number} y - The y coordinate to display the newly created Sprite at. The value is in relation to the Group.y point.
* @param {string} key - The Game.cache key of the image that this Sprite will use.
* @param {number|string} [frame] - If the Sprite image contains multiple frames you can specify which one to use here.
* @param {boolean} [exists=true] - The default exists state of the Sprite.
* @return {Phaser.Sprite|object} The child that was created. Will be a Phaser.Sprite unless Group.classType has been changed.
*/
Phaser.Group.prototype.create = function (x, y, key, frame, exists) {
if (typeof exists === 'undefined') { exists = true; }
var child = new this.classType(this.game, x, y, key, frame);
if (this.enableBody)
{
this.game.physics.enable(child, this.physicsBodyType, this.enableBodyDebug);
}
child.exists = exists;
child.visible = exists;
child.alive = exists;
this.addChild(child);
child.z = this.children.length;
if (child.events)
{
child.events.onAddedToGroup.dispatch(child, this);
}
if (this.cursor === null)
{
this.cursor = child;
}
return child;
};
/**
* Automatically creates multiple Phaser.Sprite objects and adds them to the top of this Group.
* Useful if you need to quickly generate a pool of identical sprites, such as bullets. By default the sprites will be set to not exist
* and will be positioned at 0, 0 (relative to the Group.x/y)
* You can change Group.classType to any object and this call will create an object of that type instead, but it should extend either Sprite or Image.
*
* @method Phaser.Group#createMultiple
* @param {number} quantity - The number of Sprites to create.
* @param {string} key - The Game.cache key of the image that this Sprite will use.
* @param {number|string} [frame] - If the Sprite image contains multiple frames you can specify which one to use here.
* @param {boolean} [exists=false] - The default exists state of the Sprite.
*/
Phaser.Group.prototype.createMultiple = function (quantity, key, frame, exists) {
if (typeof exists === 'undefined') { exists = false; }
for (var i = 0; i < quantity; i++)
{
this.create(0, 0, key, frame, exists);
}
};
/**
* Internal method that re-applies all of the childrens Z values.
*
* @method Phaser.Group#updateZ
* @protected
*/
Phaser.Group.prototype.updateZ = function () {
var i = this.children.length;
while (i--)
{
this.children[i].z = i;
}
};
/**
* Sets the Group cursor to the first object in the Group. If the optional index parameter is given it sets the cursor to the object at that index instead.
*
* @method Phaser.Group#resetCursor
* @param {number} [index=0] - Set the cursor to point to a specific index.
* @return {*} The child the cursor now points to.
*/
Phaser.Group.prototype.resetCursor = function (index) {
if (typeof index === 'undefined') { index = 0; }
if (index > this.children.length - 1)
{
index = 0;
}
if (this.cursor)
{
this._cache[8] = index;
this.cursor = this.children[this._cache[8]];
return this.cursor;
}
};
/**
* Advances the Group cursor to the next object in the Group. If it's at the end of the Group it wraps around to the first object.
*
* @method Phaser.Group#next
* @return {*} The child the cursor now points to.
*/
Phaser.Group.prototype.next = function () {
if (this.cursor)
{
// Wrap the cursor?
if (this._cache[8] >= this.children.length - 1)
{
this._cache[8] = 0;
}
else
{
this._cache[8]++;
}
this.cursor = this.children[this._cache[8]];
return this.cursor;
}
};
/**
* Moves the Group cursor to the previous object in the Group. If it's at the start of the Group it wraps around to the last object.
*
* @method Phaser.Group#previous
* @return {*} The child the cursor now points to.
*/
Phaser.Group.prototype.previous = function () {
if (this.cursor)
{
// Wrap the cursor?
if (this._cache[8] === 0)
{
this._cache[8] = this.children.length - 1;
}
else
{
this._cache[8]--;
}
this.cursor = this.children[this._cache[8]];
return this.cursor;
}
};
/**
* Swaps the position of two children in this Group. Both children must be in this Group.
* You cannot swap a child with itself, or swap un-parented children.
*
* @method Phaser.Group#swap
* @param {*} child1 - The first child to swap.
* @param {*} child2 - The second child to swap.
*/
Phaser.Group.prototype.swap = function (child1, child2) {
this.swapChildren(child1, child2);
this.updateZ();
};
/**
* Brings the given child to the top of this Group so it renders above all other children.
*
* @method Phaser.Group#bringToTop
* @param {*} child - The child to bring to the top of this Group.
* @return {*} The child that was moved.
*/
Phaser.Group.prototype.bringToTop = function (child) {
if (child.parent === this && this.getIndex(child) < this.children.length)
{
this.remove(child, false, true);
this.add(child, true);
}
return child;
};
/**
* Sends the given child to the bottom of this Group so it renders below all other children.
*
* @method Phaser.Group#sendToBack
* @param {*} child - The child to send to the bottom of this Group.
* @return {*} The child that was moved.
*/
Phaser.Group.prototype.sendToBack = function (child) {
if (child.parent === this && this.getIndex(child) > 0)
{
this.remove(child, false, true);
this.addAt(child, 0, true);
}
return child;
};
/**
* Moves the given child up one place in this Group unless it's already at the top.
*
* @method Phaser.Group#moveUp
* @param {*} child - The child to move up in the Group.
* @return {*} The child that was moved.
*/
Phaser.Group.prototype.moveUp = function (child) {
if (child.parent === this && this.getIndex(child) < this.children.length - 1)
{
var a = this.getIndex(child);
var b = this.getAt(a + 1);
if (b)
{
this.swap(child, b);
}
}
return child;
};
/**
* Moves the given child down one place in this Group unless it's already at the top.
*
* @method Phaser.Group#moveDown
* @param {*} child - The child to move down in the Group.
* @return {*} The child that was moved.
*/
Phaser.Group.prototype.moveDown = function (child) {
if (child.parent === this && this.getIndex(child) > 0)
{
var a = this.getIndex(child);
var b = this.getAt(a - 1);
if (b)
{
this.swap(child, b);
}
}
return child;
};
/**
* Positions the child found at the given index within this Group to the given x and y coordinates.
*
* @method Phaser.Group#xy
* @param {number} index - The index of the child in the Group to set the position of.
* @param {number} x - The new x position of the child.
* @param {number} y - The new y position of the child.
*/
Phaser.Group.prototype.xy = function (index, x, y) {
if (index < 0 || index > this.children.length)
{
return -1;
}
else
{
this.getChildAt(index).x = x;
this.getChildAt(index).y = y;
}
};
/**
* Reverses all children in this Group. Note that this does not propagate, only direct children are re-ordered.
*
* @method Phaser.Group#reverse
*/
Phaser.Group.prototype.reverse = function () {
this.children.reverse();
this.updateZ();
};
/**
* Get the index position of the given child in this Group. This should always match the childs z property.
*
* @method Phaser.Group#getIndex
* @param {*} child - The child to get the index for.
* @return {number} The index of the child or -1 if it's not a member of this Group.
*/
Phaser.Group.prototype.getIndex = function (child) {
return this.children.indexOf(child);
};
/**
* Replaces a child of this Group with the given newChild. The newChild cannot be a member of this Group.
*
* @method Phaser.Group#replace
* @param {*} oldChild - The child in this Group that will be replaced.
* @param {*} newChild - The child to be inserted into this Group.
* @return {*} Returns the oldChild that was replaced within this Group.
*/
Phaser.Group.prototype.replace = function (oldChild, newChild) {
var index = this.getIndex(oldChild);
if (index !== -1)
{
if (newChild.parent !== undefined)
{
newChild.events.onRemovedFromGroup.dispatch(newChild, this);
newChild.parent.removeChild(newChild);
if (newChild.parent instanceof Phaser.Group)
{
newChild.parent.updateZ();
}
}
var temp = oldChild;
this.remove(temp);
this.addAt(newChild, index);
return temp;
}
};
/**
* Checks if the child has the given property. Will scan up to 4 levels deep only.
*
* @method Phaser.Group#hasProperty
* @param {*} child - The child to check for the existance of the property on.
* @param {array} key - An array of strings that make up the property.
* @return {boolean} True if the child has the property, otherwise false.
*/
Phaser.Group.prototype.hasProperty = function (child, key) {
var len = key.length;
if (len === 1 && key[0] in child)
{
return true;
}
else if (len === 2 && key[0] in child && key[1] in child[key[0]])
{
return true;
}
else if (len === 3 && key[0] in child && key[1] in child[key[0]] && key[2] in child[key[0]][key[1]])
{
return true;
}
else if (len === 4 && key[0] in child && key[1] in child[key[0]] && key[2] in child[key[0]][key[1]] && key[3] in child[key[0]][key[1]][key[2]])
{
return true;
}
return false;
};
/**
* Sets a property to the given value on the child. The operation parameter controls how the value is set.
* Operation 0 means set the existing value to the given value, or if force is `false` create a new property with the given value.
* 1 will add the given value to the value already present.
* 2 will subtract the given value from the value already present.
* 3 will multiply the value already present by the given value.
* 4 will divide the value already present by the given value.
*
* @method Phaser.Group#setProperty
* @param {*} child - The child to set the property value on.
* @param {array} key - An array of strings that make up the property that will be set.
* @param {*} value - The value that will be set.
* @param {number} [operation=0] - Controls how the value is assigned. A value of 0 replaces the value with the new one. A value of 1 adds it, 2 subtracts it, 3 multiplies it and 4 divides it.
* @param {boolean} [force=false] - If `force` is true then the property will be set on the child regardless if it already exists or not. If false and the property doesn't exist, nothing will be set.
* @return {boolean} True if the property was set, false if not.
*/
Phaser.Group.prototype.setProperty = function (child, key, value, operation, force) {
if (typeof force === 'undefined') { force = false; }
operation = operation || 0;
// As ugly as this approach looks, and although it's limited to a depth of only 4, it's much faster than a for loop or object iteration.
// 0 = Equals
// 1 = Add
// 2 = Subtract
// 3 = Multiply
// 4 = Divide
// We can't force a property in and the child doesn't have it, so abort.
// Equally we can't add, subtract, multiply or divide a property value if it doesn't exist, so abort in those cases too.
if (!this.hasProperty(child, key) && (!force || operation > 0))
{
return false;
}
var len = key.length;
if (len === 1)
{
if (operation === 0) { child[key[0]] = value; }
else if (operation == 1) { child[key[0]] += value; }
else if (operation == 2) { child[key[0]] -= value; }
else if (operation == 3) { child[key[0]] *= value; }
else if (operation == 4) { child[key[0]] /= value; }
}
else if (len === 2)
{
if (operation === 0) { child[key[0]][key[1]] = value; }
else if (operation == 1) { child[key[0]][key[1]] += value; }
else if (operation == 2) { child[key[0]][key[1]] -= value; }
else if (operation == 3) { child[key[0]][key[1]] *= value; }
else if (operation == 4) { child[key[0]][key[1]] /= value; }
}
else if (len === 3)
{
if (operation === 0) { child[key[0]][key[1]][key[2]] = value; }
else if (operation == 1) { child[key[0]][key[1]][key[2]] += value; }
else if (operation == 2) { child[key[0]][key[1]][key[2]] -= value; }
else if (operation == 3) { child[key[0]][key[1]][key[2]] *= value; }
else if (operation == 4) { child[key[0]][key[1]][key[2]] /= value; }
}
else if (len === 4)
{
if (operation === 0) { child[key[0]][key[1]][key[2]][key[3]] = value; }
else if (operation == 1) { child[key[0]][key[1]][key[2]][key[3]] += value; }
else if (operation == 2) { child[key[0]][key[1]][key[2]][key[3]] -= value; }
else if (operation == 3) { child[key[0]][key[1]][key[2]][key[3]] *= value; }
else if (operation == 4) { child[key[0]][key[1]][key[2]][key[3]] /= value; }
}
return true;
};
/**
* Checks a property for the given value on the child.
*
* @method Phaser.Group#checkProperty
* @param {*} child - The child to check the property value on.
* @param {array} key - An array of strings that make up the property that will be set.
* @param {*} value - The value that will be checked.
* @param {boolean} [force=false] - If `force` is true then the property will be checked on the child regardless if it already exists or not. If true and the property doesn't exist, false will be returned.
* @return {boolean} True if the property was was equal to value, false if not.
*/
Phaser.Group.prototype.checkProperty = function (child, key, value, force) {
if (typeof force === 'undefined') { force = false; }
// We can't force a property in and the child doesn't have it, so abort.
if (!Phaser.Utils.getProperty(child, key) && force)
{
return false;
}
if (Phaser.Utils.getProperty(child, key) !== value)
{
return false;
}
return true;
};
/**
* This function allows you to quickly set a property on a single child of this Group to a new value.
* The operation parameter controls how the new value is assigned to the property, from simple replacement to addition and multiplication.
*
* @method Phaser.Group#set
* @param {Phaser.Sprite} child - The child to set the property on.
* @param {string} key - The property, as a string, to be set. For example: 'body.velocity.x'
* @param {*} value - The value that will be set.
* @param {boolean} [checkAlive=false] - If set then the child will only be updated if alive=true.
* @param {boolean} [checkVisible=false] - If set then the child will only be updated if visible=true.
* @param {number} [operation=0] - Controls how the value is assigned. A value of 0 replaces the value with the new one. A value of 1 adds it, 2 subtracts it, 3 multiplies it and 4 divides it.
* @param {boolean} [force=false] - If `force` is true then the property will be set on the child regardless if it already exists or not. If false and the property doesn't exist, nothing will be set.
* @return {boolean} True if the property was set, false if not.
*/
Phaser.Group.prototype.set = function (child, key, value, checkAlive, checkVisible, operation, force) {
if (typeof force === 'undefined') { force = false; }
key = key.split('.');
if (typeof checkAlive === 'undefined') { checkAlive = false; }
if (typeof checkVisible === 'undefined') { checkVisible = false; }
if ((checkAlive === false || (checkAlive && child.alive)) && (checkVisible === false || (checkVisible && child.visible)))
{
return this.setProperty(child, key, value, operation, force);
}
};
/**
* This function allows you to quickly set the same property across all children of this Group to a new value.
* This call doesn't descend down children, so if you have a Group inside of this Group, the property will be set on the Group but not its children.
* If you need that ability please see `Group.setAllChildren`.
*
* The operation parameter controls how the new value is assigned to the property, from simple replacement to addition and multiplication.
*
* @method Phaser.Group#setAll
* @param {string} key - The property, as a string, to be set. For example: 'body.velocity.x'
* @param {*} value - The value that will be set.
* @param {boolean} [checkAlive=false] - If set then only children with alive=true will be updated. This includes any Groups that are children.
* @param {boolean} [checkVisible=false] - If set then only children with visible=true will be updated. This includes any Groups that are children.
* @param {number} [operation=0] - Controls how the value is assigned. A value of 0 replaces the value with the new one. A value of 1 adds it, 2 subtracts it, 3 multiplies it and 4 divides it.
* @param {boolean} [force=false] - If `force` is true then the property will be set on the child regardless if it already exists or not. If false and the property doesn't exist, nothing will be set.
*/
Phaser.Group.prototype.setAll = function (key, value, checkAlive, checkVisible, operation, force) {
if (typeof checkAlive === 'undefined') { checkAlive = false; }
if (typeof checkVisible === 'undefined') { checkVisible = false; }
if (typeof force === 'undefined') { force = false; }
key = key.split('.');
operation = operation || 0;
for (var i = 0, len = this.children.length; i < len; i++)
{
if ((!checkAlive || (checkAlive && this.children[i].alive)) && (!checkVisible || (checkVisible && this.children[i].visible)))
{
this.setProperty(this.children[i], key, value, operation, force);
}
}
};
/**
* This function allows you to quickly set the same property across all children of this Group, and any child Groups, to a new value.
*
* If this Group contains other Groups then the same property is set across their children as well, iterating down until it reaches the bottom.
* Unlike with Group.setAll the property is NOT set on child Groups itself.
*
* The operation parameter controls how the new value is assigned to the property, from simple replacement to addition and multiplication.
*
* @method Phaser.Group#setAllChildren
* @param {string} key - The property, as a string, to be set. For example: 'body.velocity.x'
* @param {*} value - The value that will be set.
* @param {boolean} [checkAlive=false] - If set then only children with alive=true will be updated. This includes any Groups that are children.
* @param {boolean} [checkVisible=false] - If set then only children with visible=true will be updated. This includes any Groups that are children.
* @param {number} [operation=0] - Controls how the value is assigned. A value of 0 replaces the value with the new one. A value of 1 adds it, 2 subtracts it, 3 multiplies it and 4 divides it.
* @param {boolean} [force=false] - If `force` is true then the property will be set on the child regardless if it already exists or not. If false and the property doesn't exist, nothing will be set.
*/
Phaser.Group.prototype.setAllChildren = function (key, value, checkAlive, checkVisible, operation, force) {
if (typeof checkAlive === 'undefined') { checkAlive = false; }
if (typeof checkVisible === 'undefined') { checkVisible = false; }
if (typeof force === 'undefined') { force = false; }
operation = operation || 0;
for (var i = 0, len = this.children.length; i < len; i++)
{
if ((!checkAlive || (checkAlive && this.children[i].alive)) && (!checkVisible || (checkVisible && this.children[i].visible)))
{
if (this.children[i] instanceof Phaser.Group)
{
this.children[i].setAllChildren(key, value, checkAlive, checkVisible, operation, force);
}
else
{
this.setProperty(this.children[i], key.split('.'), value, operation, force);
}
}
}
};
/**
* This function allows you to quickly check that the same property across all children of this Group is equal to the given value.
* This call doesn't descend down children, so if you have a Group inside of this Group, the property will be checked on the Group but not its children.
*
* @method Phaser.Group#checkAll
* @param {string} key - The property, as a string, to be set. For example: 'body.velocity.x'
* @param {*} value - The value that will be checked.
* @param {boolean} [checkAlive=false] - If set then only children with alive=true will be checked. This includes any Groups that are children.
* @param {boolean} [checkVisible=false] - If set then only children with visible=true will be checked. This includes any Groups that are children.
* @param {boolean} [force=false] - If `force` is true then the property will be checked on the child regardless if it already exists or not. If true and the property doesn't exist, false will be returned.
*/
Phaser.Group.prototype.checkAll = function (key, value, checkAlive, checkVisible, force) {
if (typeof checkAlive === 'undefined') { checkAlive = false; }
if (typeof checkVisible === 'undefined') { checkVisible = false; }
if (typeof force === 'undefined') { force = false; }
for (var i = 0, len = this.children.length; i < len; i++)
{
if ((!checkAlive || (checkAlive && this.children[i].alive)) && (!checkVisible || (checkVisible && this.children[i].visible)))
{
if (!this.checkProperty(this.children[i], key, value, force))
{
return false;
}
}
}
return true;
};
/**
* Adds the amount to the given property on all children in this Group.
* Group.addAll('x', 10) will add 10 to the child.x value.
*
* @method Phaser.Group#addAll
* @param {string} property - The property to increment, for example 'body.velocity.x' or 'angle'.
* @param {number} amount - The amount to increment the property by. If child.x = 10 then addAll('x', 40) would make child.x = 50.
* @param {boolean} checkAlive - If true the property will only be changed if the child is alive.
* @param {boolean} checkVisible - If true the property will only be changed if the child is visible.
*/
Phaser.Group.prototype.addAll = function (property, amount, checkAlive, checkVisible) {
this.setAll(property, amount, checkAlive, checkVisible, 1);
};
/**
* Subtracts the amount from the given property on all children in this Group.
* Group.subAll('x', 10) will minus 10 from the child.x value.
*
* @method Phaser.Group#subAll
* @param {string} property - The property to decrement, for example 'body.velocity.x' or 'angle'.
* @param {number} amount - The amount to subtract from the property. If child.x = 50 then subAll('x', 40) would make child.x = 10.
* @param {boolean} checkAlive - If true the property will only be changed if the child is alive.
* @param {boolean} checkVisible - If true the property will only be changed if the child is visible.
*/
Phaser.Group.prototype.subAll = function (property, amount, checkAlive, checkVisible) {
this.setAll(property, amount, checkAlive, checkVisible, 2);
};
/**
* Multiplies the given property by the amoun