Spawn Multiple decals around the projectile HitLocation

[lollipop_Man]

Hello there i want to spawn multiple decals on when my projectile hits something but i also want to spread them out so they do not spawn on top of each other.

Right now i have managed to spawn two decals on top of each other but i am not sure how to modify the HitLocation to tell the other decal to spawn a little bit to the side of the first decal.

Here is the code in question, it is my own projectile class extended from UTProjectile

simulated function SpawnExplosionEffects(vector HitLocation, vector HitNormal)
{
	local vector LightLoc, LightHitLocation, LightHitNormal;
	local vector Direction;
	local ParticleSystemComponent ProjExplosion;
	local Actor EffectAttachActor;
	local MaterialInstanceTimeVarying MITV_Decal;
	local MaterialInstanceTimeVarying MITV_Decal2;

	if (WorldInfo.NetMode != NM_DedicatedServer)
	{
		if (ProjectileLight != None)
		{
			DetachComponent(ProjectileLight);
			ProjectileLight = None;
		}
		if (ProjExplosionTemplate != None && EffectIsRelevant(Location, false, MaxEffectDistance))
		{
			// Disabling for the demo to prevent explosions from attaching to the pawn...
//			EffectAttachActor = (bAttachExplosionToVehicles || (UTVehicle(ImpactedActor) == None)) ? ImpactedActor : None;
			EffectAttachActor = None;
			if (!bAdvanceExplosionEffect)
			{
				ProjExplosion = WorldInfo.MyEmitterPool.SpawnEmitter(ProjExplosionTemplate, HitLocation, rotator(HitNormal), EffectAttachActor);
			}
			else
			{
				Direction = normal(Velocity - 2.0 * HitNormal * (Velocity dot HitNormal)) * Vect(1,1,0);
				ProjExplosion = WorldInfo.MyEmitterPool.SpawnEmitter(ProjExplosionTemplate, HitLocation, rotator(Direction), EffectAttachActor);
				ProjExplosion.SetVectorParameter('Velocity',Direction);
				ProjExplosion.SetVectorParameter('HitNormal',HitNormal);
			}
			SetExplosionEffectParameters(ProjExplosion);

			if ( !WorldInfo.bDropDetail && ((ExplosionLightClass != None) || (ExplosionDecal != none)) && ShouldSpawnExplosionLight(HitLocation, HitNormal) )
			{
				if ( ExplosionLightClass != None )
				{
					if (Trace(LightHitLocation, LightHitNormal, HitLocation + (0.25 * ExplosionLightClass.default.TimeShift[0].Radius * HitNormal), HitLocation, false) == None)
					{
						LightLoc = HitLocation + (0.25 * ExplosionLightClass.default.TimeShift[0].Radius * (vect(1,0,0) >> ProjExplosion.Rotation));
					}
					else
					{
						LightLoc = HitLocation + (0.5 * VSize(HitLocation - LightHitLocation) * (vect(1,0,0) >> ProjExplosion.Rotation));
					}

					UDKEmitterPool(WorldInfo.MyEmitterPool).SpawnExplosionLight(ExplosionLightClass, LightLoc, EffectAttachActor);
				}

				// this code is mostly duplicated in:  UTGib, UTProjectile, UTVehicle, UTWeaponAttachment be aware when updating
				if (ExplosionDecal != None && Pawn(ImpactedActor) == None )
				{
					if( MaterialInstanceTimeVarying(ExplosionDecal) != none )
					{
						// hack, since they don't show up on terrain anyway
						if ( Terrain(ImpactedActor) == None )
						{
						MITV_Decal = new(self) class'MaterialInstanceTimeVarying';
						MITV_Decal2 = new(self) class'MaterialInstanceTimeVarying';
						MITV_Decal.SetParent( ExplosionDecal );
						MITV_Decal2.SetParent( ExplosionDecal );

						WorldInfo.MyDecalManager.SpawnDecal(MITV_Decal, HitLocation, rotator(-HitNormal), DecalWidth, DecalHeight, 10.0, FALSE );
						WorldInfo.MyDecalManager.SpawnDecal(MITV_Decal2, HitLocation, rotator(-HitNormal), DecalWidth, DecalHeight, 10.0, FALSE );
						//here we need to see if we are an MITV and then set the burn out times to occur
						MITV_Decal.SetScalarStartTime( DecalDissolveParamName, DurationOfDecal );
						MITV_Decal2.SetScalarStartTime( DecalDissolveParamName, DurationOfDecal );
					}
					}
					else
					{
						WorldInfo.MyDecalManager.SpawnDecal( ExplosionDecal, HitLocation, rotator(-HitNormal), DecalWidth, DecalHeight, 10.0, true );
					}
				}
			}
		}

		if (ExplosionSound != None && !bSuppressSounds)
		{
			PlaySound(ExplosionSound, true);
		}

		bSuppressExplosionFX = true; // so we don't get called again
	}
}

If there is another better way to do this please say so. I am new to UDK development and any kind of scripting/coding in general so any advice is appreciated

If i posted the question wrong or in the wrong place i would appreciate any direction since this is my first time asking a question about code.ection since this is my first time asking a question about code.

Oh also just a forum etiquette question.

I have another problem i want advice on but is it best to ask multiple questions in the same post or should i make a separate post for every question?

[Blade[UG]]

If you want a specific distance, just add that to the existing location vector, or you could use something like HitLocation + (VRand() * 5) for a random up to 5 unit distance

[lollipop_Man]

If you want a specific distance, just add that to the existing location vector, or you could use something like HitLocation + (VRand() * 5) for a random up to 5 unit distance

Thanks for the help!

This might be a very basic question but how do i add a specific distance to the location vector?

[Blade[UG]]

HitLocation + vect(1,1,1)