Wikis / Unreal Wiki / Legacy:Replication Examples/Emitter replication

#exec OBJ LOAD FILE=EpicParticles.utx
 
//-----------------------------------------------------------
// by Shadow_knight
//-----------------------------------------------------------
class ChangingEmitter extends Emitter;
 
//here we will store colors that will be used by the emitter
var color FirstColor;
var color SecondColor;
 
//We need to replicate the variables FirstColor and SecondColor to clients
replication
{
  reliable if(Role == Role_Authority)
    FirstColor, SecondColor;
}
 
//this function sets the FirstColor variable to desired value, it is simulated so it will set the FirstColor also on client
simulated function SetFirstColor(Color firstC)
{
	FirstColor = firstC;
}
 
//same as previous function except it will set SecondColor
simulated function SetSecondColor(Color secondC)
{
	SecondColor = secondC;
}
 
//This is our key function. This function is called on clients if the actor has set bNetNotify to true
//Here we will set the emitter to use our color variables
simulated function PostNetReceive()
{
	Emitters[0].ColorScale[1].Color = FirstColor;
	Emitters[0].ColorScale[2].Color = SecondColor;
}
 
defaultproperties
{
    //The SpriteEmitter object here is copy paste from original UT class Spiral.uc
    Begin Object Class=SpriteEmitter Name=SpriteEmitter2
	UseColorScale=True
        ColorScale(0)=(Color=(B=255,G=255,R=255))
        ColorScale(1)=(RelativeTime=0.200000,Color=(G=170,R=255))
        ColorScale(2)=(RelativeTime=1.000000,Color=(G=217,R=255))
        FadeOutStartTime=1.300000
        FadeOut=True
        FadeInEndTime=0.250000
        FadeIn=True
        MaxParticles=15
        StartLocationShape=PTLS_Sphere
        SphereRadiusRange=(Min=16.000000,Max=16.000000)
        RevolutionsPerSecondRange=(Z=(Min=0.200000,Max=0.500000))
        RevolutionScale(0)=(RelativeRevolution=(Z=2.000000))
        RevolutionScale(1)=(RelativeTime=0.600000)
        RevolutionScale(2)=(RelativeTime=1.000000,RelativeRevolution=(Z=2.000000))
        SpinsPerSecondRange=(X=(Max=4.000000))
        StartSizeRange=(X=(Min=4.000000,Max=4.000000),Y=(Min=4.000000,Max=4.000000),Z=(Min=8.000000,Max=8.000000))
        UniformSize=True
        Texture=Texture'EpicParticles.Flares.HotSpot'
        LifetimeRange=(Min=1.600000,Max=1.600000)
        StartVelocityRadialRange=(Min=-20.000000,Max=-20.000000)
        VelocityLossRange=(X=(Min=0.200000,Max=0.200000),Y=(Min=0.200000,Max=0.200000),Z=(Min=1.000000,Max=1.000000))
        GetVelocityDirectionFrom=PTVD_AddRadial
        UseVelocityScale=True
        VelocityScale(0)=(RelativeVelocity=(X=2.000000,Y=2.000000,Z=2.000000))
        VelocityScale(1)=(RelativeTime=0.600000)
        VelocityScale(2)=(RelativeTime=1.000000,RelativeVelocity=(X=-10.000000,Y=-10.000000,Z=-10.000000))
 
        LowDetailFactor=+1.0
        Name="SpriteEmitter7"
    End Object
    Emitters(0)=SpriteEmitter'SpriteEmitter2'
    bNoDelete=false
    bAlwaysRelevant=True
    bNetTemporary=False
    bHidden=False
    bNetNotify=True //this is important here, otherwise the function PostNetReceive() would not be called
    RemoteRole=ROLE_SimulatedProxy
    CullDistance=+2000.0
    FirstColor=(R=255) //This will be default FirstColor for our emitter
    SecondColor=(R=255) //This will be default SecondColor for our emitter
}