CollisionComponent(system, entity) 

Create a new CollisionComponent.

Parameters

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

QuatangularOffset 

The rotational offset of the collision shape from the Entity rotation in local space. Defaults to identity.

Asset, numberasset 

The asset for the model of the mesh collision volume - can also be an asset id. Defaults to null.

numberaxis 

The local space axis with which the capsule, cylinder or cone-shaped collision volume's length is aligned. 0 for X, 1 for Y and 2 for Z. Defaults to 1 (Y-axis).

Vec3halfExtents 

The half-extents of the box-shaped collision volume in the x, y and z axes. Defaults to [0.5, 0.5, 0.5].

numberheight 

The total height of the capsule, cylinder or cone-shaped collision volume from tip to tip. Defaults to 2.

Vec3linearOffset 

The positional offset of the collision shape from the Entity position along the local axes. Defaults to [0, 0, 0].

Modelmodel 

The model that is added to the scene graph for the mesh collision volume.

numberradius 

The radius of the sphere, capsule, cylinder or cone-shaped collision volumes. Defaults to 0.5.

Asset, numberrenderAsset 

The render asset of the mesh collision volume - can also be an asset id. Defaults to null. If not set then the asset property will be checked instead.

stringtype 

The type of the collision volume. Can be:

• "box": A box-shaped collision volume.
• "capsule": A capsule-shaped collision volume.
• "compound": A compound shape. Any descendant entities with a collision component of type box, capsule, cone, cylinder or sphere will be combined into a single, rigid shape.
• "cone": A cone-shaped collision volume.
• "cylinder": A cylinder-shaped collision volume.
• "mesh": A collision volume that uses a model asset as its shape.
• "sphere": A sphere-shaped collision volume.

Defaults to "box".

getShapePosition() 

Returns the world position for the collision shape taking into account of any offsets.

Returns

Vec3

The world position for the collision shape.

getShapeRotation() 

Returns the world rotation for the collision shape taking into account of any offsets.

Returns

Quat

The world rotation for the collision.

collisionend 

Fired two rigid-bodies stop touching.

Parameters

other

Entity

The Entity that stopped touching this collision volume.

collisionstart 

Fired when two rigid bodies start touching.

Parameters

result

ContactResult

Details of the contact between the two Entities.

contact 

The 'contact' event is fired when a contact occurs between two rigid bodies.

Parameters

result

ContactResult

Details of the contact between the two rigid bodies.

triggerenter 

Fired when a rigid body enters a trigger volume.

Parameters

other

Entity

The Entity that entered this collision volume.

triggerleave 

Fired when a rigid body exits a trigger volume.

Parameters

other

Entity

The Entity that exited this collision volume.

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.