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GFxHUDTrigger
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UE3 Home > User Interfaces & HUDs > Scaleform GFx > How to display something on the HUD when a trigger is touched

How to display something on the HUD when a trigger is touched


Overview


There are a number of ways you could display something on the player's HUD when they touch a trigger in the level. Using Kismet only is one possible approach for example. Another way to approach it would be to create a custom trigger object in UnrealScript (which you can place in the level) that informs Scaleform to do something.

YourTrigger.uc
  class MyTrigger extends Trigger
    placeable
    ClassGroup(Common);
  
  event Touch(Actor Other, PrimitiveComponent OtherComp, vector HitLocation, vector HitNormal)
  {
    local Pawn TouchingPawn;
    local MyPlayerController PC;
    local MyHUD HUD;
  
    TouchingPawn = Pawn(Other);
    if (TouchingPawn != None)
    {
      PC = MyPlayerController(TouchingPawn.Controller);
      if (PC != None)
      {
        HUD = MyHUD(PC.MyHUD);
        if (HUD != None && HUD.HUDMovie != None)
        {
          HUD.HUDMovie.DoSomething();
        }
      }
    }
  }
  

This will call HUDMovie::DoSomething(), which would allow you to perhaps animate the HUD in a fancy way or to display some text for example.