lingo-l Minor lingo questions
Hello folks, I've got these simple questions that i've encountered while working with Director 8. 1. About lists. Let's say i've got a bunch of hefty #bitmap members in my cast and i made up my mind to add them all to a linear list to easily manipulate them. As far as i understand, Lingo manages lists entirely in RAM, so i wonder, will a lingo list duplicate all tose members in memory or just create references to them (in RAM of course) and that way manipulate them? 2. About variables. I started to read www.director-online.com articles to fortify my knowldege of Director. From time to time i come across these statements in articles: ...try to use variables So what's the difference: on exitFrame me set the locH of sprite the spriteNum of me to the locH of sprite the spriteNum of me + 1 end (watch for line wrap) and on exitFrame me set aSprite to the spriteNum of me set aLocH to the locH of sprite aSprite set aLoc to aLoc + 1 end Another exmaple: on exitFrame me set the scrollTop of member the member of sprite the spriteNum of me to the scrollTop of member the member of sprite the spriteNum of me + 1 end (watch for line wrap) and on exitFrame me set aSprite to the spriteNum of me set aMember to the member of sprite aSprite set the scrollTop of aMember to the scrollTop of aMember + 1 end In the second exitFrame examples Director has to reassign variables each time it refreshes the frame and therefore (to my mind) it looses speed. I may be wrong of course, but can i get some guidelines of when do i have to assign variables and when should i use explicit usage? TIA Petro Bochan [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
Re: lingo-l Minor lingo questions
On Sep 6, 2004, at 9:09 AM, Petro Bochan wrote: 1. About lists. Let's say i've got a bunch of hefty #bitmap members in my cast and i made up my mind to add them all to a linear list to easily manipulate them. As far as i understand, Lingo manages lists entirely in RAM, so i wonder, will a lingo list duplicate all tose members in memory or just create references to them (in RAM of course) and that way manipulate them? I suppose there could be two answers to that. Generally it would store references. Though in the case of storing something like member(bitmap).image, you would be creating and storing a duplicate of the current state of the member's image, rather than a reference. -- Troy RPSystems, Ltd. http://www.rpsystems.net [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
RE: lingo-l Minor lingo questions
Daniel Plaenitz: Evaluating an expression like sprite someSpriteNum takes some time, too. And its much faster to read a script property or variable than to access sprite or even member properties. Instead of recreating sprite references with every exitFrame you could do it like this: Thanks Daniel, that helped me alot -- All the best Petro Bochan [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
