122 lines
3.6 KiB
Ucode
122 lines
3.6 KiB
Ucode
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/**
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*
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* Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
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*/
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class UDKEmitterPool extends EmitterPool
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native;
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/** info about attached explosion lights */
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struct native AttachedExplosionLight
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{
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var UDKExplosionLight Light;
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var Actor Base;
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var vector RelativeLocation;
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};
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var array<AttachedExplosionLight> RelativeExplosionLights;
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cpptext
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{
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virtual void TickSpecial(FLOAT DeltaTime);
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}
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/**
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* Support for particle emitter LOD based on "drop detail" (when frame rate is low) and distance.
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*/
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function ParticleSystemComponent SpawnEmitter(ParticleSystem EmitterTemplate, vector SpawnLocation, optional rotator SpawnRotation, optional Actor AttachToActor, optional Actor InInstigator, optional int MaxDLEPooledReuses, optional bool bInheritScaleFromBase)
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{
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local PlayerController PC;
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local int LODLevel;
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local ParticleSystemComponent PSC;
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if( EmitterTemplate == none )
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{
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`log( "UDKEmitterPool was passed a none EmitterTemplate" );
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// ScriptTrace();
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return none;
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}
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PSC = Super.SpawnEmitter(EmitterTemplate, SpawnLocation, SpawnRotation, AttachToActor, InInstigator, MaxDLEPooledReuses, bInheritScaleFromBase);
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// reduce detail if low framerate
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if (WorldInfo.bDropDetail)
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{
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LODLevel = 1;
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}
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// NVCHANGE_BEGIN: JCAO - Fix on override particle systems LOD settings
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// Do not use EmitterTemplate any more, because it may be replaced by PhysX particle system override
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else if (PSC.Template.LODDistances.length > 1)
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{
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// also reduce detail if all local players are too far away or effect is behind them
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LODLevel = 1;
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foreach LocalPlayerControllers(class'PlayerController', PC)
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{
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if ( PC.ViewTarget != None && VSize(PC.ViewTarget.Location - SpawnLocation) * PC.LODDistanceFactor < PSC.Template.LODDistances[1] &&
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vector(PC.Rotation) dot (SpawnLocation - PC.ViewTarget.Location) >= 0.0 )
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{
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LODLevel = 0;
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break;
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}
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}
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}
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// NVCHANGE_END: JCAO - Fix on Mutated particle systems LOD settings
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PSC.SetLODLevel(LODLevel);
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PSC.SetDepthPriorityGroup(SDPG_World);
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return PSC;
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}
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/** hooked up to UDKExplosionLight's OnLightFinished delegate to clean it up */
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function OnExplosionLightFinished(UDKExplosionLight Light)
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{
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local int i;
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DetachComponent(Light);
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i = RelativeExplosionLights.Find('Light', Light);
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if (i != INDEX_NONE)
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{
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RelativeExplosionLights.Remove(i, 1);
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}
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}
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/** creates an explosion light (currently not pooled) */
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function UDKExplosionLight SpawnExplosionLight(class<UDKExplosionLight> LightClass, vector SpawnLocation, optional Actor AttachToActor)
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{
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local UDKExplosionLight Light;
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local int i;
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// AttachToActor is only for movement, so if it can't move, then there is no point in using it
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if (AttachToActor != None && (AttachToActor.bStatic || !AttachToActor.bMovable))
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{
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AttachToActor = None;
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}
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Light = new(self) LightClass;
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Light.SetTranslation(SpawnLocation);
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Light.OnLightFinished = OnExplosionLightFinished;
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AttachComponent(Light);
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if (AttachToActor != None)
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{
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i = RelativeExplosionLights.length;
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RelativeExplosionLights.length = i + 1;
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RelativeExplosionLights[i].Light = Light;
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RelativeExplosionLights[i].Base = AttachToActor;
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RelativeExplosionLights[i].RelativeLocation = SpawnLocation - AttachToActor.Location;
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}
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return Light;
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}
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defaultproperties
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{
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Begin Object Name=ParticleSystemComponent0
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bAcceptsLights=false
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SecondsBeforeInactive=0
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bOverrideLODMethod=true
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LODMethod=PARTICLESYSTEMLODMETHOD_DirectSet
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End Object
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MaxActiveEffects=200
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SMC_MIC_ReductionTime=2.0
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IdealStaticMeshComponents=200
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IdealMaterialInstanceConstants=200
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}
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