phaser/src/scene/ScenePlugin.js
2024-11-04 12:56:55 +01:00

1124 lines
32 KiB
JavaScript

/**
* @author Richard Davey <rich@phaser.io>
* @copyright 2013-2024 Phaser Studio Inc.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
var Clamp = require('../math/Clamp');
var Class = require('../utils/Class');
var Events = require('./events');
var GetFastValue = require('../utils/object/GetFastValue');
var PluginCache = require('../plugins/PluginCache');
/**
* @classdesc
* The Scene Plugin is the main interface to the Scene Manager and allows you to control
* any Scene running in your game. You should always use this plugin. By default, it is
* mapped to the Scene property `this.scene`. Meaning, from within a Scene, you can call
* methods such as `this.scene.start()`.
*
* Note that nearly all methods in this class are run on a queue-basis and not
* immediately. For example, calling `this.scene.launch('SceneB')` will try to
* launch SceneB when the Scene Manager next updates, which is at the start of the game
* step. All operations are queued and run in the order in which they are invoked here.
*
* @class ScenePlugin
* @memberof Phaser.Scenes
* @constructor
* @since 3.0.0
*
* @param {Phaser.Scene} scene - The Scene that this ScenePlugin belongs to.
*/
var ScenePlugin = new Class({
initialize:
function ScenePlugin (scene)
{
/**
* The Scene that this ScenePlugin belongs to.
*
* @name Phaser.Scenes.ScenePlugin#scene
* @type {Phaser.Scene}
* @since 3.0.0
*/
this.scene = scene;
/**
* The Scene Systems instance of the Scene that this ScenePlugin belongs to.
*
* @name Phaser.Scenes.ScenePlugin#systems
* @type {Phaser.Scenes.Systems}
* @since 3.0.0
*/
this.systems = scene.sys;
/**
* The settings of the Scene this ScenePlugin belongs to.
*
* @name Phaser.Scenes.ScenePlugin#settings
* @type {Phaser.Types.Scenes.SettingsObject}
* @since 3.0.0
*/
this.settings = scene.sys.settings;
/**
* The key of the Scene this ScenePlugin belongs to.
*
* @name Phaser.Scenes.ScenePlugin#key
* @type {string}
* @since 3.0.0
*/
this.key = scene.sys.settings.key;
/**
* The Game's SceneManager.
*
* @name Phaser.Scenes.ScenePlugin#manager
* @type {Phaser.Scenes.SceneManager}
* @since 3.0.0
*/
this.manager = scene.sys.game.scene;
/**
* If this Scene is currently transitioning to another, this holds
* the current percentage of the transition progress, between 0 and 1.
*
* @name Phaser.Scenes.ScenePlugin#transitionProgress
* @type {number}
* @since 3.5.0
*/
this.transitionProgress = 0;
/**
* Transition elapsed timer.
*
* @name Phaser.Scenes.ScenePlugin#_elapsed
* @type {number}
* @private
* @since 3.5.0
*/
this._elapsed = 0;
/**
* Transition elapsed timer.
*
* @name Phaser.Scenes.ScenePlugin#_target
* @type {?Phaser.Scene}
* @private
* @since 3.5.0
*/
this._target = null;
/**
* Transition duration.
*
* @name Phaser.Scenes.ScenePlugin#_duration
* @type {number}
* @private
* @since 3.5.0
*/
this._duration = 0;
/**
* Transition callback.
*
* @name Phaser.Scenes.ScenePlugin#_onUpdate
* @type {function}
* @private
* @since 3.5.0
*/
this._onUpdate;
/**
* Transition callback scope.
*
* @name Phaser.Scenes.ScenePlugin#_onUpdateScope
* @type {object}
* @private
* @since 3.5.0
*/
this._onUpdateScope;
/**
* Will this Scene sleep (true) after the transition, or stop (false)
*
* @name Phaser.Scenes.ScenePlugin#_willSleep
* @type {boolean}
* @private
* @since 3.5.0
*/
this._willSleep = false;
/**
* Will this Scene be removed from the Scene Manager after the transition completes?
*
* @name Phaser.Scenes.ScenePlugin#_willRemove
* @type {boolean}
* @private
* @since 3.5.0
*/
this._willRemove = false;
scene.sys.events.once(Events.BOOT, this.boot, this);
scene.sys.events.on(Events.START, this.pluginStart, this);
},
/**
* This method is called automatically, only once, when the Scene is first created.
* Do not invoke it directly.
*
* @method Phaser.Scenes.ScenePlugin#boot
* @private
* @since 3.0.0
*/
boot: function ()
{
this.systems.events.once(Events.DESTROY, this.destroy, this);
},
/**
* This method is called automatically by the Scene when it is starting up.
* It is responsible for creating local systems, properties and listening for Scene events.
* Do not invoke it directly.
*
* @method Phaser.Scenes.ScenePlugin#pluginStart
* @private
* @since 3.5.0
*/
pluginStart: function ()
{
this._target = null;
this.systems.events.once(Events.SHUTDOWN, this.shutdown, this);
},
/**
* Shutdown this Scene and run the given one.
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#start
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to start.
* @param {object} [data] - The Scene data. If no value is given it will not overwrite any previous data that may exist.
*
* @return {this} This Scene Plugin instance.
*/
start: function (key, data)
{
if (key === undefined) { key = this.key; }
this.manager.queueOp('stop', this.key);
this.manager.queueOp('start', key, data);
return this;
},
/**
* Restarts this Scene.
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#restart
* @since 3.4.0
*
* @param {object} [data] - The Scene data. If no value is given it will not overwrite any previous data that may exist.
*
* @return {this} This Scene Plugin instance.
*/
restart: function (data)
{
var key = this.key;
this.manager.queueOp('stop', key);
this.manager.queueOp('start', key, data);
return this;
},
/**
* This will start a transition from the current Scene to the target Scene given.
*
* The target Scene cannot be the same as the current Scene.
*
* The transition will last for the duration specified in milliseconds.
*
* You can have the target Scene moved above or below this one in the display list.
*
* You can specify an update callback. This callback will be invoked _every frame_ for the duration
* of the transition.
*
* This Scene can either be sent to sleep at the end of the transition, or stopped. The default is to stop.
*
* There are also 5 transition related events: This scene will emit the event `transitionout` when
* the transition begins, which is typically the frame after calling this method.
*
* The target Scene will emit the event `transitioninit` when that Scene's `init` method is called.
* It will then emit the event `transitionstart` when its `create` method is called.
* If the Scene was sleeping and has been woken up, it will emit the event `transitionwake` instead of these two,
* as the Scenes `init` and `create` methods are not invoked when a Scene wakes up.
*
* When the duration of the transition has elapsed it will emit the event `transitioncomplete`.
* These events are cleared of all listeners when the Scene shuts down, but not if it is sent to sleep.
*
* It's important to understand that the duration of the transition begins the moment you call this method.
* If the Scene you are transitioning to includes delayed processes, such as waiting for files to load, the
* time still counts down even while that is happening. If the game itself pauses, or something else causes
* this Scenes update loop to stop, then the transition will also pause for that duration. There are
* checks in place to prevent you accidentally stopping a transitioning Scene but if you've got code to
* override this understand that until the target Scene completes it might never be unlocked for input events.
*
* @method Phaser.Scenes.ScenePlugin#transition
* @fires Phaser.Scenes.Events#TRANSITION_OUT
* @since 3.5.0
*
* @param {Phaser.Types.Scenes.SceneTransitionConfig} config - The transition configuration object.
*
* @return {boolean} `true` is the transition was started, otherwise `false`.
*/
transition: function (config)
{
if (config === undefined) { config = {}; }
var key = GetFastValue(config, 'target', false);
var target = this.manager.getScene(key);
if (!key || !this.checkValidTransition(target))
{
return false;
}
var duration = GetFastValue(config, 'duration', 1000);
this._elapsed = 0;
this._target = target;
this._duration = duration;
this._willSleep = GetFastValue(config, 'sleep', false);
this._willRemove = GetFastValue(config, 'remove', false);
var callback = GetFastValue(config, 'onUpdate', null);
if (callback)
{
this._onUpdate = callback;
this._onUpdateScope = GetFastValue(config, 'onUpdateScope', this.scene);
}
var allowInput = GetFastValue(config, 'allowInput', false);
this.settings.transitionAllowInput = allowInput;
var targetSettings = target.sys.settings;
targetSettings.isTransition = true;
targetSettings.transitionFrom = this.scene;
targetSettings.transitionDuration = duration;
targetSettings.transitionAllowInput = allowInput;
if (GetFastValue(config, 'moveAbove', false))
{
this.manager.moveAbove(this.key, key);
}
else if (GetFastValue(config, 'moveBelow', false))
{
this.manager.moveBelow(this.key, key);
}
if (target.sys.isSleeping())
{
target.sys.wake(GetFastValue(config, 'data'));
}
else
{
this.manager.start(key, GetFastValue(config, 'data'));
}
var onStartCallback = GetFastValue(config, 'onStart', null);
var onStartScope = GetFastValue(config, 'onStartScope', this.scene);
if (onStartCallback)
{
onStartCallback.call(onStartScope, this.scene, target, duration);
}
this.systems.events.emit(Events.TRANSITION_OUT, target, duration);
return true;
},
/**
* Checks to see if this Scene can transition to the target Scene or not.
*
* @method Phaser.Scenes.ScenePlugin#checkValidTransition
* @private
* @since 3.5.0
*
* @param {Phaser.Scene} target - The Scene to test against.
*
* @return {boolean} `true` if this Scene can transition, otherwise `false`.
*/
checkValidTransition: function (target)
{
// Not a valid target if it doesn't exist, isn't active or is already transitioning in or out
if (!target || target.sys.isActive() || target.sys.isTransitioning() || target === this.scene || this.systems.isTransitioning())
{
return false;
}
return true;
},
/**
* A single game step. This is only called if the parent Scene is transitioning
* out to another Scene.
*
* @method Phaser.Scenes.ScenePlugin#step
* @private
* @since 3.5.0
*
* @param {number} time - The current time. Either a High Resolution Timer value if it comes from Request Animation Frame, or Date.now if using SetTimeout.
* @param {number} delta - The delta time in ms since the last frame. This is a smoothed and capped value based on the FPS rate.
*/
step: function (time, delta)
{
this._elapsed += delta;
this.transitionProgress = Clamp(this._elapsed / this._duration, 0, 1);
if (this._onUpdate)
{
this._onUpdate.call(this._onUpdateScope, this.transitionProgress);
}
if (this._elapsed >= this._duration)
{
this.transitionComplete();
}
},
/**
* Called by `step` when the transition out of this scene to another is over.
*
* @method Phaser.Scenes.ScenePlugin#transitionComplete
* @private
* @fires Phaser.Scenes.Events#TRANSITION_COMPLETE
* @since 3.5.0
*/
transitionComplete: function ()
{
var targetSys = this._target.sys;
var targetSettings = this._target.sys.settings;
// Notify target scene
targetSys.events.emit(Events.TRANSITION_COMPLETE, this.scene);
// Clear target scene settings
targetSettings.isTransition = false;
targetSettings.transitionFrom = null;
// Clear local settings
this._duration = 0;
this._target = null;
this._onUpdate = null;
this._onUpdateScope = null;
// Now everything is clear we can handle what happens to this Scene
if (this._willRemove)
{
this.manager.remove(this.key);
}
else if (this._willSleep)
{
this.systems.sleep();
}
else
{
this.manager.stop(this.key);
}
},
/**
* Add the Scene into the Scene Manager and start it if 'autoStart' is true or the Scene config 'active' property is set.
*
* @method Phaser.Scenes.ScenePlugin#add
* @since 3.0.0
*
* @param {string} key - A unique key used to reference the Scene, i.e. `MainMenu` or `Level1`.
* @param {(Phaser.Types.Scenes.SceneType)} sceneConfig - The config for the Scene
* @param {boolean} [autoStart=false] - If `true` the Scene will be started immediately after being added.
* @param {object} [data] - Optional data object. This will be set as `Scene.settings.data` and passed to `Scene.init`, and `Scene.create`.
*
* @return {?Phaser.Scene} The added Scene, if it was added immediately, otherwise `null`.
*/
add: function (key, sceneConfig, autoStart, data)
{
return this.manager.add(key, sceneConfig, autoStart, data);
},
/**
* Launch the given Scene and run it in parallel with this one.
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#launch
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} key - The Scene to launch.
* @param {object} [data] - The Scene data.
*
* @return {this} This Scene Plugin instance.
*/
launch: function (key, data)
{
if (key && key !== this.key)
{
this.manager.queueOp('start', key, data);
}
return this;
},
/**
* Runs the given Scene, but does not change the state of this Scene.
*
* This will happen at the next Scene Manager update, not immediately.
*
* If the given Scene is paused, it will resume it. If sleeping, it will wake it.
* If not running at all, it will be started.
*
* Use this if you wish to open a modal Scene by calling `pause` on the current
* Scene, then `run` on the modal Scene.
*
* @method Phaser.Scenes.ScenePlugin#run
* @since 3.10.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} key - The Scene to run.
* @param {object} [data] - A data object that will be passed to the Scene and emitted in its ready, wake, or resume events.
*
* @return {this} This Scene Plugin instance.
*/
run: function (key, data)
{
if (key && key !== this.key)
{
this.manager.queueOp('run', key, data);
}
return this;
},
/**
* Pause the Scene - this stops the update step from happening but it still renders.
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#pause
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to pause.
* @param {object} [data] - An optional data object that will be passed to the Scene and emitted in its pause event.
*
* @return {this} This Scene Plugin instance.
*/
pause: function (key, data)
{
if (key === undefined) { key = this.key; }
this.manager.queueOp('pause', key, data);
return this;
},
/**
* Resume the Scene - starts the update loop again.
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#resume
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to resume.
* @param {object} [data] - An optional data object that will be passed to the Scene and emitted in its resume event.
*
* @return {this} This Scene Plugin instance.
*/
resume: function (key, data)
{
if (key === undefined) { key = this.key; }
this.manager.queueOp('resume', key, data);
return this;
},
/**
* Makes the Scene sleep (no update, no render) but doesn't shutdown.
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#sleep
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to put to sleep.
* @param {object} [data] - An optional data object that will be passed to the Scene and emitted in its sleep event.
*
* @return {this} This Scene Plugin instance.
*/
sleep: function (key, data)
{
if (key === undefined) { key = this.key; }
this.manager.queueOp('sleep', key, data);
return this;
},
/**
* Makes the Scene wake-up (starts update and render)
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#wake
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to wake up.
* @param {object} [data] - An optional data object that will be passed to the Scene and emitted in its wake event.
*
* @return {this} This Scene Plugin instance.
*/
wake: function (key, data)
{
if (key === undefined) { key = this.key; }
this.manager.queueOp('wake', key, data);
return this;
},
/**
* Makes this Scene sleep then starts the Scene given.
*
* This will happen at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#switch
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} key - The Scene to start.
* @param {any} [data] - Optional data object to pass to either the Scene `wake` or `start` method.
*
* @return {this} This Scene Plugin instance.
*/
switch: function (key, data)
{
if (key !== this.key)
{
this.manager.queueOp('switch', this.key, key, data);
}
return this;
},
/**
* Shutdown the Scene, clearing display list, timers, etc.
*
* This happens at the next Scene Manager update, not immediately.
*
* @method Phaser.Scenes.ScenePlugin#stop
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to stop.
* @param {any} [data] - Optional data object to pass to Scene.Systems.shutdown.
*
* @return {this} This Scene Plugin instance.
*/
stop: function (key, data)
{
if (key === undefined) { key = this.key; }
this.manager.queueOp('stop', key, data);
return this;
},
/**
* Sets the active state of the given Scene.
*
* @method Phaser.Scenes.ScenePlugin#setActive
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {boolean} value - If `true` the Scene will be resumed. If `false` it will be paused.
* @param {(string|Phaser.Scene)} [key] - The Scene to set the active state of.
* @param {object} [data] - An optional data object that will be passed to the Scene and emitted with its events.
*
* @return {this} This Scene Plugin instance.
*/
setActive: function (value, key, data)
{
if (key === undefined) { key = this.key; }
var scene = this.manager.getScene(key);
if (scene)
{
scene.sys.setActive(value, data);
}
return this;
},
/**
* Sets the visible state of the given Scene.
*
* @method Phaser.Scenes.ScenePlugin#setVisible
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {boolean} value - The visible value.
* @param {(string|Phaser.Scene)} [key] - The Scene to set the visible state for.
*
* @return {this} This Scene Plugin instance.
*/
setVisible: function (value, key)
{
if (key === undefined) { key = this.key; }
var scene = this.manager.getScene(key);
if (scene)
{
scene.sys.setVisible(value);
}
return this;
},
/**
* Checks if the given Scene is sleeping or not?
*
* @method Phaser.Scenes.ScenePlugin#isSleeping
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to check.
*
* @return {boolean} Whether the Scene is sleeping, or `null` if no matching Scene was found.
*/
isSleeping: function (key)
{
if (key === undefined) { key = this.key; }
return this.manager.isSleeping(key);
},
/**
* Checks if the given Scene is running or not?
*
* @method Phaser.Scenes.ScenePlugin#isActive
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to check.
*
* @return {boolean} Whether the Scene is running, or `null` if no matching Scene was found.
*/
isActive: function (key)
{
if (key === undefined) { key = this.key; }
return this.manager.isActive(key);
},
/**
* Checks if the given Scene is paused or not?
*
* @method Phaser.Scenes.ScenePlugin#isPaused
* @since 3.17.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to check.
*
* @return {boolean} Whether the Scene is paused, or `null` if no matching Scene was found.
*/
isPaused: function (key)
{
if (key === undefined) { key = this.key; }
return this.manager.isPaused(key);
},
/**
* Checks if the given Scene is visible or not?
*
* @method Phaser.Scenes.ScenePlugin#isVisible
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to check.
*
* @return {boolean} Whether the Scene is visible, or `null` if no matching Scene was found.
*/
isVisible: function (key)
{
if (key === undefined) { key = this.key; }
return this.manager.isVisible(key);
},
/**
* Swaps the position of two scenes in the Scenes list.
*
* This controls the order in which they are rendered and updated.
*
* @method Phaser.Scenes.ScenePlugin#swapPosition
* @since 3.2.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [keyA,keyB]
*
* @param {(string|Phaser.Scene)} keyA - The first Scene to swap.
* @param {(string|Phaser.Scene)} [keyB] - The second Scene to swap. If none is given it defaults to this Scene.
*
* @return {this} This Scene Plugin instance.
*/
swapPosition: function (keyA, keyB)
{
if (keyB === undefined) { keyB = this.key; }
if (keyA !== keyB)
{
this.manager.swapPosition(keyA, keyB);
}
return this;
},
/**
* Moves a Scene so it is immediately above another Scene in the Scenes list.
* If the Scene is already above the other, it isn't moved.
*
* This means it will render over the top of the other Scene.
*
* @method Phaser.Scenes.ScenePlugin#moveAbove
* @since 3.2.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [keyA,keyB]
*
* @param {(string|Phaser.Scene)} keyA - The Scene that Scene B will be moved to be above.
* @param {(string|Phaser.Scene)} [keyB] - The Scene to be moved. If none is given it defaults to this Scene.
*
* @return {this} This Scene Plugin instance.
*/
moveAbove: function (keyA, keyB)
{
if (keyB === undefined) { keyB = this.key; }
if (keyA !== keyB)
{
this.manager.moveAbove(keyA, keyB);
}
return this;
},
/**
* Moves a Scene so it is immediately below another Scene in the Scenes list.
* If the Scene is already below the other, it isn't moved.
*
* This means it will render behind the other Scene.
*
* @method Phaser.Scenes.ScenePlugin#moveBelow
* @since 3.2.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [keyA,keyB]
*
* @param {(string|Phaser.Scene)} keyA - The Scene that Scene B will be moved to be below.
* @param {(string|Phaser.Scene)} [keyB] - The Scene to be moved. If none is given it defaults to this Scene.
*
* @return {this} This Scene Plugin instance.
*/
moveBelow: function (keyA, keyB)
{
if (keyB === undefined) { keyB = this.key; }
if (keyA !== keyB)
{
this.manager.moveBelow(keyA, keyB);
}
return this;
},
/**
* Removes a Scene from the SceneManager.
*
* The Scene is removed from the local scenes array, it's key is cleared from the keys
* cache and Scene.Systems.destroy is then called on it.
*
* If the SceneManager is processing the Scenes when this method is called it will
* queue the operation for the next update sequence.
*
* @method Phaser.Scenes.ScenePlugin#remove
* @since 3.2.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to be removed.
*
* @return {this} This Scene Plugin instance.
*/
remove: function (key)
{
if (key === undefined) { key = this.key; }
this.manager.remove(key);
return this;
},
/**
* Moves a Scene up one position in the Scenes list.
*
* @method Phaser.Scenes.ScenePlugin#moveUp
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to move.
*
* @return {this} This Scene Plugin instance.
*/
moveUp: function (key)
{
if (key === undefined) { key = this.key; }
this.manager.moveUp(key);
return this;
},
/**
* Moves a Scene down one position in the Scenes list.
*
* @method Phaser.Scenes.ScenePlugin#moveDown
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to move.
*
* @return {this} This Scene Plugin instance.
*/
moveDown: function (key)
{
if (key === undefined) { key = this.key; }
this.manager.moveDown(key);
return this;
},
/**
* Brings a Scene to the top of the Scenes list.
*
* This means it will render above all other Scenes.
*
* @method Phaser.Scenes.ScenePlugin#bringToTop
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to move.
*
* @return {this} This Scene Plugin instance.
*/
bringToTop: function (key)
{
if (key === undefined) { key = this.key; }
this.manager.bringToTop(key);
return this;
},
/**
* Sends a Scene to the back of the Scenes list.
*
* This means it will render below all other Scenes.
*
* @method Phaser.Scenes.ScenePlugin#sendToBack
* @since 3.0.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to move.
*
* @return {this} This Scene Plugin instance.
*/
sendToBack: function (key)
{
if (key === undefined) { key = this.key; }
this.manager.sendToBack(key);
return this;
},
/**
* Retrieves a Scene based on the given key.
*
* If an actual Scene is passed to this method, it can be used to check if
* its currently within the Scene Manager, or not.
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
* @genericUse {T} - [$return]
*
* @method Phaser.Scenes.ScenePlugin#get
* @since 3.0.0
*
* @param {(string|Phaser.Scene)} key - The Scene to retrieve.
*
* @return {Phaser.Scene} The Scene.
*/
get: function (key)
{
return this.manager.getScene(key);
},
/**
* Return the status of the Scene.
*
* @method Phaser.Scenes.ScenePlugin#getStatus
* @since 3.60.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} key - The Scene to get the status from.
*
* @return {number} The Scene status. This maps to the `Phaser.Scene` constants, such as `Phaser.Scene.LOADING`.
*/
getStatus: function (key)
{
var scene = this.manager.getScene(key);
if (scene)
{
return scene.sys.getStatus();
}
},
/**
* Retrieves the numeric index of a Scene in the Scenes list.
*
* @method Phaser.Scenes.ScenePlugin#getIndex
* @since 3.7.0
*
* @generic {Phaser.Scene} T
* @genericUse {(T|string)} - [key]
*
* @param {(string|Phaser.Scene)} [key] - The Scene to get the index of.
*
* @return {number} The index of the Scene.
*/
getIndex: function (key)
{
if (key === undefined) { key = this.key; }
return this.manager.getIndex(key);
},
/**
* The Scene that owns this plugin is shutting down.
*
* We need to kill and reset all internal properties as well as stop listening to Scene events.
*
* @method Phaser.Scenes.ScenePlugin#shutdown
* @private
* @since 3.0.0
*/
shutdown: function ()
{
var eventEmitter = this.systems.events;
eventEmitter.off(Events.SHUTDOWN, this.shutdown, this);
eventEmitter.off(Events.TRANSITION_OUT);
},
/**
* The Scene that owns this plugin is being destroyed.
*
* We need to shutdown and then kill off all external references.
*
* @method Phaser.Scenes.ScenePlugin#destroy
* @private
* @since 3.0.0
*/
destroy: function ()
{
this.shutdown();
this.scene.sys.events.off(Events.START, this.start, this);
this.scene = null;
this.systems = null;
this.settings = null;
this.manager = null;
}
});
PluginCache.register('ScenePlugin', ScenePlugin, 'scenePlugin');
module.exports = ScenePlugin;