You can use the trigger_multiple method with multiple disjoint brushes. The various brush volumes would act as a single trigger. You would need a trigger_multiple, a filter_activator_class, and a math_counter to do this. Set the filter to only pass entities of the class that you are interested in, then hook up entity I/O as follows:
trigger_multiple.OnStartTouch -> math_counter.Add(1) trigger_multiple.OnEndTouch -> math_counter.Subtract(1) trigger_multiple.OnEndTouchAll -> math_counter.SetValue(0) -----Original Message----- From: hlcoders-boun...@list.valvesoftware.com [mailto:hlcoders-boun...@list.valvesoftware.com] On Behalf Of Jonas 'Sortie' Termansen Sent: Wednesday, March 11, 2009 2:13 PM To: Discussion of Half-Life Programming Subject: Re: [hlcoders] Counting entities within a Custom Brush How about making a trigger_multiple -alike brush entity that counts the number of entities in it. Everytime something new touches it, it increments an integer, and decreases it when the entities leave it. ----- Original Message ----- From: <n...@perforated-art.com> To: <hlcoders@list.valvesoftware.com> Sent: Wednesday, March 11, 2009 8:35 PM Subject: [hlcoders] Counting entities within a Custom Brush > I'm new to Source development and would like to get an idea for the > best way to approach my problem before embarking on writing any code: > > In a mulitplayer team-based environment I'd like to count the number > of specific entities placed within a Custom Brush's radius. The number > of entities within the brushes radius contributes directly to a > particular teams score and I'd like to periodically increase a teams > score over time. > > Essentially then, I'm looking to check for the number of entities > within a Custom Brushes radius at set intervals. In my mind there are > two ways of approaching this. The first is to have the brushes think() > function count the entities and deal with them accordingly. The second > is to have the CGameRules class search the level for any of these > Custom Brushes and then count the number of entities within them > (again, at set intervals). > > Being new to Source, I imagine the first approach would trigger a > Logic Entity (such as math_counter). Of course, the problem here is > that I'd like to allow for multiple Custom Brushes, so I think my > second solution seems more flexible, in this regard (especially seeing > as how the number of objects within a teams collection of Custom > Brushes _can_ result in the victory of a round). How would you > approach this? > > Secondly, what do people consider 'good practice' with regards to > custom Game Rules? Do you subclass CGameRules (or some equivalent > class), or do you edit directly (as a number of tutorial on the VALVe > Wiki suggest?) > > Basically, I'd just like feedback from people with more experience to > see if I'm heading in the right direction. I don't want to jump in at > the deep end and sink! > > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, > please visit: > http://list.valvesoftware.com/mailman/listinfo/hlcoders > _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
