The array of items to be updated by this action.
The alpha value to set on each item. Should be in the range 0 (fully transparent) to 1 (fully opaque).
Optionalstep: number
This is added to the value amount, multiplied by the iteration counter. Default 0.
Optionalindex: number
An optional offset to start searching from within the items array. Default 0.
Optionaldirection: number
The direction to iterate through the array. 1 is from beginning to end, -1 from end to beginning. Default 1.
The array of objects that were passed to this Action.
Takes an array of Game Objects, or any objects that have the public property
alphaand then sets it to the given value.The optional
stepproperty is applied incrementally, multiplied by the iteration index and added tovalue.To use this with a Group:
SetAlpha(group.getChildren(), value, step)