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Why does blueprint creation call PlayerTick?

My friend was making a PlayerController class and inside that class's PlayerTick he put

 if(GEngine != nullptr)
 {
     UGameViewportClient* gameViewport = GEngine->GameViewport;
     check(gameViewport != nullptr); // TODO handle lack of gameViewport
     //...
 }

I wanted to test some functionality, so I created a child blueprint, but then the editor crashed. After a long search I found out that the PlayerTick method was called on BP creation and because the game wasn't running there was no GameViewport so the check macro was crashing the editor. Is it possible to somehow prevent this behaviour (other than removing the check)?

Product Version: UE 4.16
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asked Jul 15 '17 at 03:17 PM in C++ Programming

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Demiu
45 4 8 12

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If I'm not mistaken you can put a GetWorld check into the PlayerTick. the world should be nullptr

 PlayerTick(...)
 {
     if(!GetWorld())
     {
         return;
      }
    // your code 
 } 
 
 
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answered Jul 15 '17 at 04:04 PM

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MatzeOGH
581 21 10 32

avatar image Demiu Jul 16 '17 at 11:05 AM

I already fixed it, now I'm just wondering why is it even called

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