Using Director > Parent Scripts > Using scriptInstanceList |  |

Using scriptInstanceList

You can use the `scriptInstanceList` property to dynamically add new behaviors to a sprite. Normally, `scriptInstanceList` is the list of behavior instances created from the behavior initializers defined in the Score. If you add child objects created from parent scripts to this list, the child objects receive the messages sent to other behaviors.

For example, this statement adds a child object to the `scriptInstanceList` property of sprite 10:

    add sprite(10).scriptInstanceList, new(script "rotation", 10)

This is a possible parent script that the statement refers to:

    -- parent script "rotation"
    property spriteNum

    on new me, aSpriteNum
    	spriteNum = aSpriteNum
    	return me
    end

    on prepareFrame me
    	sprite(spriteNum).rotation = sprite(spriteNum).rotation + 1
    end

When a child object is added to `scriptInstanceList`, you must initialize the child object's `spriteNum` property. Typically you do this from a parameter passed in to the `on new` handler.

Note: The `beginSprite` message is not sent to dynamically added child objects.