Host vs client, who should fire the bullet?

Unity Engine
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1

As the title suggests…whats the best approach to firing projectiles in a multiplayer game?

I was thinking

  • all clients can fire a projectile. Calling this rpc will trigger on everyone’s game
  • the projectile will impact and explode on every client, but only the host will calculate the damage, and send it back out to all clients
  • all clients can fire hitscan weapons, but the host again, will determine if the hitscan hit th target

Is this the right approach? Is there another?

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Sounds about right. Reminds me that I still have to implement client-side projectiles, for the time being I just spawn them server side which works pretty well even with simulator set to create a 100ms RTT…

One thing to keep in mind: when the server projectile impacts, clients need to destroy their versions too because it may have missed. And vice versa: client side impact, but server side miss. That‘s why I went for the less complicated implementation for now. Probably best to not let client projectiles impact on client side to avoid this complication.

1 Like
3

aah yep good point on client projectile potentially missing! might be best to tell the server to explode it. (thing is, the projectile is NOT a network object. maybe it should be for this reason)