ScriptComponent(system, entity) 

Create a new ScriptComponent instance.

Parameters

system	ScriptComponentSystem	The ComponentSystem that created this Component.
entity	Entity	The Entity that this Component is attached to.

ScriptType[]scripts 

An array of all script instances attached to an entity. This array is read-only and should not be modified by developer.

create(nameOrType, [args]) 

Create a script instance and attach to an entity script component.

entity.script.create('playerController', {
    attributes: {
        speed: 4
    }
});

Parameters

nameOrType	string, typeof(ScriptType)	The name or type of ScriptType.
args	object	Object with arguments for a script.
args.enabled	boolean	If script instance is enabled after creation. Defaults to true.
args.attributes	object	Object with values for attributes (if any), where key is name of an attribute.
args.preloading	boolean	If script instance is created during preload. If true, script and attributes must be initialized manually. Defaults to false.
args.ind	number	The index where to insert the script instance at. Defaults to -1, which means append it at the end.

Returns

ScriptType, null

Returns an instance of a ScriptType if successfully attached to an entity, or null if it failed because a script with a same name has already been added or if the ScriptType cannot be found by name in the ScriptRegistry.

destroy(nameOrType) 

Destroy the script instance that is attached to an entity.

entity.script.destroy('playerController');

Parameters

nameOrType

string, typeof(ScriptType)

The name or type of ScriptType.

Returns

boolean

If it was successfully destroyed.

get(nameOrType) 

Get a script instance (if attached).

const controller = entity.script.get('playerController');

Parameters

nameOrType

string, typeof(ScriptType)

The name or type of ScriptType.

Returns

ScriptType, null

If script is attached, the instance is returned. Otherwise null is returned.

has(nameOrType) 

Detect if script is attached to an entity.

if (entity.script.has('playerController')) {
    // entity has script
}

Parameters

nameOrType

string, typeof(ScriptType)

The name or type of ScriptType.

Returns

boolean

If script is attached to an entity.

move(nameOrType, ind) 

Move script instance to different position to alter update order of scripts within entity.

entity.script.move('playerController', 0);

Parameters

nameOrType	string, typeof(ScriptType)	The name or type of ScriptType.
ind	number	New position index.

Returns

boolean

If it was successfully moved.

create:[name] 

Fired when a script instance is created and attached to component.

entity.script.on('create:playerController', function (scriptInstance) {
    // new script instance 'playerController' is added to component
});

Parameters

scriptInstance

ScriptType

The instance of the ScriptType that has been created.

destroy:[name] 

Fired when a script instance is destroyed and removed from component.

entity.script.on('destroy:playerController', function (scriptInstance) {
    // script instance 'playerController' has been destroyed and removed from component
});

Parameters

scriptInstance

ScriptType

The instance of the ScriptType that has been destroyed.

create 

Fired when a script instance is created and attached to component.

entity.script.on('create', function (name, scriptInstance) {
    // new script instance added to component
});

Parameters

name	string	The name of the Script Type.
scriptInstance	ScriptType	The instance of the ScriptType that has been created.

destroy 

Fired when a script instance is destroyed and removed from component.

entity.script.on('destroy', function (name, scriptInstance) {
    // script instance has been destroyed and removed from component
});

Parameters

name	string	The name of the Script Type.
scriptInstance	ScriptType	The instance of the ScriptType that has been destroyed.

disable 

Fired when Component becomes disabled. Note: this event does not take in account entity or any of its parent enabled state.

entity.script.on('disable', function () {
    // component is disabled
});

enable 

Fired when Component becomes enabled. Note: this event does not take in account entity or any of its parent enabled state.

entity.script.on('enable', function () {
    // component is enabled
});

error 

Fired when a script instance had an exception.

entity.script.on('error', function (scriptInstance, err, method) {
    // script instance caught an exception
});

Parameters

scriptInstance	ScriptType	The instance of the ScriptType that raised the exception.
err	Error	Native JS Error object with details of an error.
method	string	The method of the script instance that the exception originated from.

move 

Fired when a script instance is moved in component.

entity.script.on('move', function (name, scriptInstance, ind, indOld) {
    // script instance has been moved in component
});

Parameters

name	string	The name of the Script Type.
scriptInstance	ScriptType	The instance of the ScriptType that has been moved.
ind	number	New position index.
indOld	number	Old position index.

remove 

Fired when Component is removed from entity.

entity.script.on('remove', function () {
    // entity has no more script component
});

state 

Fired when Component changes state to enabled or disabled. Note: this event does not take in account entity or any of its parent enabled state.

entity.script.on('state', function (enabled) {
    // component changed state
});

Parameters

enabled

boolean

True if now enabled, False if disabled.

move:[name] 

Fired when a script instance is moved in component.

entity.script.on('move:playerController', function (scriptInstance, ind, indOld) {
    // script instance 'playerController' has been moved in component
});

Parameters

scriptInstance	ScriptType	The instance of the ScriptType that has been moved.
ind	number	New position index.
indOld	number	Old position index.

booleanenabled 

Enables or disables the component.

Entityentity 

The Entity that this Component is attached to.

ComponentSystemsystem 

The ComponentSystem used to create this Component.

fire(name, [arg1], [arg2], [arg3], [arg4], [arg5], [arg6], [arg7], [arg8]) 

Fire an event, all additional arguments are passed on to the event listener.

obj.fire('test', 'This is the message');

Parameters

name	string	Name of event to fire.
arg1	*	First argument that is passed to the event handler.
arg2	*	Second argument that is passed to the event handler.
arg3	*	Third argument that is passed to the event handler.
arg4	*	Fourth argument that is passed to the event handler.
arg5	*	Fifth argument that is passed to the event handler.
arg6	*	Sixth argument that is passed to the event handler.
arg7	*	Seventh argument that is passed to the event handler.
arg8	*	Eighth argument that is passed to the event handler.

Returns

EventHandler

Self for chaining.

hasEvent(name) 

Test if there are any handlers bound to an event name.

obj.on('test', function () { }); // bind an event to 'test'
obj.hasEvent('test'); // returns true
obj.hasEvent('hello'); // returns false

Parameters

name

string

The name of the event to test.

Returns

boolean

True if the object has handlers bound to the specified event name.

off([name], [callback], [scope]) 

Detach an event handler from an event. If callback is not provided then all callbacks are unbound from the event, if scope is not provided then all events with the callback will be unbound.

const handler = function () {
};
obj.on('test', handler);

obj.off(); // Removes all events
obj.off('test'); // Removes all events called 'test'
obj.off('test', handler); // Removes all handler functions, called 'test'
obj.off('test', handler, this); // Removes all handler functions, called 'test' with scope this

Parameters

name	string	Name of the event to unbind.
callback	HandleEventCallback	Function to be unbound.
scope	object	Scope that was used as the this when the event is fired.

Returns

EventHandler

Self for chaining.

on(name, callback, [scope]) 

Attach an event handler to an event.

obj.on('test', function (a, b) {
    console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console

const evt = obj.on('test', function (a, b) {
    console.log(a + b);
});
// some time later
evt.off();

Parameters

name	string	Name of the event to bind the callback to.
callback	HandleEventCallback	Function that is called when event is fired. Note the callback is limited to 8 arguments.
scope	object	Object to use as 'this' when the event is fired, defaults to current this.

Returns

EventHandle

Can be used for removing event in the future.

once(name, callback, [scope]) 

Attach an event handler to an event. This handler will be removed after being fired once.

obj.once('test', function (a, b) {
    console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console
obj.fire('test', 1, 2); // not going to get handled

Parameters

name	string	Name of the event to bind the callback to.
callback	HandleEventCallback	Function that is called when event is fired. Note the callback is limited to 8 arguments.
scope	object	Object to use as 'this' when the event is fired, defaults to current this.

Returns

EventHandle

• can be used for removing event in the future.