Game Level Design/GLDesign.bin/Software/UnrealEngine2Runtime/UE2Runtime-22262001_Demo.exe/Engine/Classes/LineOfSightTrigger.uc

Text File | 2003-06-23 | 2KB | 48 lines

//=============================================================================
// LineOfSightTrigger
// triggers its event when player looks at it from close enough
// ONLY WORKS IN SINGLE PLAYER (or for the local client on a listen server)
// You could implement a multiplayer version using a tick function and PlayerCanSeeMe(),
// but that would have more performance cost
//=============================================================================
class LineOfSightTrigger extends Triggers
    native;

var() float MaxViewDist;    // maximum distance player can be from this trigger to trigger it
var   float OldTickTime;
var() bool  bEnabled;
var      bool  bTriggered;
var() name    SeenActorTag;    // tag of actor which triggers this trigger when seen
var      actor SeenActor;
var() int MaxViewAngle;        // how directly a player must be looking at SeenActor center (in degrees)
var float RequiredViewDir;    // how directly player must be looking at SeenActor - 1.0 = straight on, 0.75 = barely on screen

function PostBeginPlay()
{
    Super.PostBeginPlay();

    RequiredViewDir = cos(MaxViewAngle * PI/180);
    if ( SeenActorTag != '' )
        ForEach AllActors(class'Actor',SeenActor,SeenActorTag)
            break;
}

event PlayerSeesMe(PlayerController P)
{
    TriggerEvent(Event,self,P.Pawn);
    bTriggered = true;
}

function Trigger( actor Other, Pawn EventInstigator )
{
    bEnabled = true;
}

defaultproperties
{
    MaxViewDist=+3000.0
    bEnabled=true
    bCollideActors=false
    MaxViewAngle=15
}