new LifeSpan()
LifeSpan Component Features.
- Source - gameobjects/components/LifeSpan.js, line 12
Members
-
alive :boolean
-
A useful flag to control if the Game Object is alive or dead.
This is set automatically by the Health components
damage
method should the object run out of health.
Or you can toggle it via your game code.This property is mostly just provided to be used by your game - it doesn't effect rendering or logic updates.
However you can useGroup.getFirstAlive
in conjunction with this property for fast object pooling and recycling.- Default Value:
- true
- Source - gameobjects/components/LifeSpan.js, line 50
-
lifespan :number
-
The lifespan allows you to give a Game Object a lifespan in milliseconds.
Once the Game Object is 'born' you can set this to a positive value.
It is automatically decremented by the millisecond equivalent of
game.time.physicsElapsed
each frame.
When it reaches zero it will call thekill
method.Very handy for particles, bullets, collectibles, or any other short-lived entity.
- Source - gameobjects/components/LifeSpan.js, line 65
Methods
-
<static> preUpdate()
-
The LifeSpan component preUpdate handler.
Called automatically by the Game Object.- Source - gameobjects/components/LifeSpan.js, line 20
-
kill() → {PIXI.DisplayObject}
-
Kills a Game Object. A killed Game Object has its
alive
,exists
andvisible
properties all set to false.It will dispatch the
onKilled
event. You can listen toevents.onKilled
for the signal.Note that killing a Game Object is a way for you to quickly recycle it in an object pool,
it doesn't destroy the object or free it up from memory.If you don't need this Game Object any more you should call
destroy
instead.Returns:
PIXI.DisplayObject -This instance.
- Source - gameobjects/components/LifeSpan.js, line 113
-
revive(health) → {PIXI.DisplayObject}
-
Brings a 'dead' Game Object back to life, optionally resetting its health value in the process.
A resurrected Game Object has its
alive
,exists
andvisible
properties all set to true.It will dispatch the
onRevived
event. Listen toevents.onRevived
for the signal.Parameters:
Name Type Argument Default Description health
number <optional>
100 The health to give the Game Object. Only set if the GameObject has the Health component.
Returns:
PIXI.DisplayObject -This instance.
- Source - gameobjects/components/LifeSpan.js, line 78