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Old 05-21-20, 08:42 AM   #1
ArnoldR
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bullhorn Air raid harbour siren

Hello,
In GWX 3.0, I remember that a siren sound was played when a harbour was attacked by airplanes. Does anyone know how this is possible??? There is a special particle in particles.dat (in the library), but how is this particle triggered???
Thank you in advance!
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Old 05-21-20, 09:32 AM   #2
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Old 05-21-20, 10:03 AM   #3
ArnoldR
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@Anvar: Thank you I know! My question is: how this particle is triggered? What is the mechanism that will play this particle when airplanes are spotted???
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Old 05-21-20, 10:08 AM   #4
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Quote:
Originally Posted by ArnoldR View Post
@Anvar: Thank you I know! My question is: how this particle is triggered? What is the mechanism that will play this particle when airplanes are spotted???
In SH4 it’s triggered by a radius area, meaning when plane enter a predefined radius, siren yells. In SH3 i don’t know, but maybe same?
Probably like the fanfare music playing when you close dock
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Old 05-21-20, 02:26 PM   #5
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Old 05-21-20, 08:03 PM   #6
gap
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Quote:
Originally Posted by Fifi View Post
In SH4 it’s triggered by a radius area, meaning when plane enter a predefined radius, siren yells. In SH3 i don’t know, but maybe same?
Probably like the fanfare music playing when you close dock
I can be wrong but I don't think that answers ArnoldR's question. The fanfare is always playing its music, and we only hear it when we get within its audible radius. Conversely the air raid siren is playing only in ports, and only when enemy aircraft are within port's range, so something must be triggering it.

I don't know how that was done by other modders, but the way I would do it, is creating a land or sea unit (it could be just a dummy unit or be shaped as a building or a siren) and equipping it with a fake AA gun. With the appropriate elevation settings, this gun can be made to only fire against enemies which are high on the sky i.e. planes. Gun and visual sensor range settings will help deciding at which range from this "siren unit" anemy aicraft must be, for it to start shooting at them. At this point, all you have to do is giving this gun a good reserve of invisible dummy shells, and using as muzzle flash effect an invisible effect with the siren loop as its sound source.

Place one or two of these units in each port, and the trick is done
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Old 05-22-20, 12:49 AM   #7
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The fanfare is always playing its music, and we only hear it when we get within its audible radius.
You may be right then, but sound kind of weird process!
Have to check next time, but it seems to me the fanfare song is starting over from beginning each time we close...meaning it’s not playing non stop. But I’m not 100% sure.
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