User Guide

spriteNum

Syntax

spriteNum

the spriteNum of me

Description

Sprite property; determines the channel number the behavior’s sprite is in and makes it available

to any behaviors. Simply declare the property at the top of the behavior, along with any other

properties the behavior may use.

If you use an

on new handler to create an instance of the behavior, the script’s on new handler must

explicitly set the

spriteNum property to the sprite’s number. This provides a way to identify the

sprite the script is attached to. The sprite’s number must be passed to the

on new handler as an

argument when the on new handler is called.

Examples

In this handler, the spriteNum property is automatically set for script instances that are created by

the system:

property spriteNum

on mouseDown me

sprite(spriteNum).member = member("DownPict")

end

This handler uses the automatic value inserted into the spriteNum property to assign the sprite

reference to a new property variable

pMySpriteRef, as a convenience:

property spriteNum, pMySpriteRef

on beginSprite me

pMySpriteRef = sprite(me.spriteNum)

end

This approach allows the use of the reference pMySpriteRef later in the script, with the handler

using the syntax

currMember = pMySpriteRef.member

instead of the following syntax which is somewhat longer:

currMember = sprite(spriteNum).member

This alternative approach is merely for convenience, and provides no different functionality.