# SpatialFear.SFDirectionTrigger

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    //=============================================================================
    // Spatial Fear
    // Class: SFDirectionTrigger
    // Descritption: A trigger, that only fires, when the instigator is within a
    //					predefined direction (arc) to the location of the trigger
    //
    // Author: Markus Nuebel
    //=============================================================================

    class SFDirectionTrigger extends SFTrigger;

    var (SpatialFear) float fThreshold; // Treshold for the dot product. e.g.1=has to be triggered directly from in front, 0=can be triggered from anywhere in an 180 degree FOV of the trigger, 0.7=equals a test for a 45 degree FOV of the trigger.

    singular function Touch(Actor Other)
    {
    	local Vector X, Y, Z;
    	local float fDot;

    	local bool bResult;

    	bResult	= True;

    	// should we even pay attention to this actor?
    	if (!IsRelevant(Other))
    		return;

    	if (Other != None)
    	{
    		GetAxes(Rotation, X, Y, Z);
    		fDot	= (Normal(Other.Location - Location)) dot X;
    		// if we're on the wrong side of the trigger, then don't trigger it
    		if (fDot < fThreshold)
    			bResult = False;
    	}

    	if (bResult)
    		Super.Touch(Other);
    }

    defaultproperties
    {
         ReTriggerDelay=1.000000
         bDirectional=True
    }

class file time: 12/7/2003 3:58:24 PM - creation time: 12/7/2003 4:03:44 PM
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