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Object group statement?
http://45.55.195.193/viewtopic.php?f=73&t=14814		 Page 1 of 1
Author:  Areku [ Wed May 20, 2009 9:41 pm ]
Post subject:  Object group statement?
Ok, I want that all objects in a specific group are affected by a certain function, but I am in doubt about the exact syntax I should use.

Should it be something like:

for actor in MovableMan.Actors and actor in MovableMan.GroupName do

I am rather confused, as I read the lua documentation and found very little reference to group functions. Any help would be appreciated. Thanks in advance. :)
Author:  Thoughtprocess [ Wed May 20, 2009 10:49 pm ]
Post subject:  Re: Object group statement?
Not sure which GroupName you're referring to, but your syntax is a little off.

Code:
for actor in MovableMan.Actors do
will do something for all actors.

for whatever GroupName you have in mind,
Code:
for actor in MovableMan.GroupName do
should suffice, as long as the group is in fact in MovableMan.
Author:  Areku [ Thu May 21, 2009 9:01 pm ]
Post subject:  Re: Object group statement?
I think I didn't express myself correctly.
What I mean is that, in the .ini file, I give an actor an AddToGroup = XYZ variable. Then, in the .lua file, I want the game to iterate through all the objects in group = XYZ. The problem is that XYZ is not a predefined group in MovableMan, but a custom group. So, any ideas?
Author:  TheLastBanana [ Thu May 21, 2009 11:51 pm ]
Post subject:  Re: Object group statement?
actor:IsInGroup("XYZ") returns true if it is in group XYZ.
So, if everything in the group is actors, the code would go like so:
Code:
for actor in MovableMan.Actors do
   if actor:IsInGroup("XYZ") then
      <code>
   end
end

Or, if you wanted to cycle through every type of object (including particles and weapons):
Code:
for actor in MovableMan.Actors do
   if actor:IsInGroup("XYZ") then
      <code>
   end
end
for item in MovableMan.Items do
   if item:IsInGroup("XYZ") then
      <code>
   end
end
for particle in MovableMan.Particles do
   if particle:IsInGroup("XYZ") then
      <code>
   end
end

This is of course assuming the code changes according to object type. Otherwise, you'd just declare a function and call it where <code> would normally be.
Author:  Areku [ Fri May 22, 2009 1:16 am ]
Post subject:  Re: Object group statement?
Yes! It works! :lol:
Thanks!

I've gotta tell you, it's fun using lua to stop missiles in mid-air and send them back to the poor soldier who shot them... :P
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