Rocket pass through and trigger

[Rad]

How could I go about making something that a rocket could fly through, not explode, and trigger something else at the same time?

Initially I was hoping to use glass, and onBreak to trigger something, but the rockets just explode when they hit the glass (though the trigger does work). It's been a long time since I played through hl2 so I wasn't sure if rockets could fly through glass without exploding, but I seem to remember that happening.

If there's no way you can make a rocket fly through glass without exploding (but still breaking the glass), are there any other obvious options I have to accomplish this?

Thanks!

 

[Reginald]

Um... I have no idea but if you could set it so the glass starts off in its shattered state, then have whatever it is activate when a hole appears. Because it may be able to fly through then.

 

[UltraProAnti]

assuming the rocket in flight makes a noise, you could place an env_microphone near where you want the trigger to be and set the level so it's triggered by the passing rockets. your environment would probably need to be fairly quiet though

 

[Raeven0]

The trigger_rpgfire entity can detect when an RPG is fired within it. Env_microphone supports a Max Range. Perhaps you could employ them together: activate a microphone in the trigger when an RPG is fired in the surrounding area.

 

[UltraProAnti]

does trigger_rpgfire detect non-player-carried RPG rockets, like those from a func_tank or APC?

 

[Rad]

Thanks for the replies so far.

Couple things... when glass is somewhat broken, a rocket CAN fly through it, and even appear to do "damage" to it, but it doesn't actually trigger as damage. If I shoot the exact same part with a pistol, it will register as damage, but a rocket that doesn't explode will not. Odd...

Also odd, even though we can hear a rocket as it flies, the env_mic will not. I can walk up to the mic, explode the rocket near the mic, etc, but a rocket flying directly next to the mic doesn't register as a sound.

Any other thoughts on this? I'm trying stuff one by one but not getting anywhere unfortunately. The only thing I can think of doing now is getting into the RPG's code and somehow making it not break when it goes through glass, but I didn't really want to get into that, since that would require it to be an actual mod and not just a map.