/* 
    Jlint_SeqAct_EnablePostProcess
    Toggle any post process effect/MaterialEffect that is in the current post processing chain
        - Toggle effects for a single player or everyone
        - Can input an effect name from a kismet variable or node properties
        - Makes effects gradually appear(just as long as they have the right material setup)
        - Overrides preexisting post process effects with your own materials
    Some code borrowed from Hat_SnatcherContract_DeathWish_RiftCollapse & Hat_HUD
*/

class Jlint_SeqAct_EnablePostProcess extends SequenceAction;

var() string EffectName<ToolTip="The post process/material effect's name.">;
var() Material MaterialOverride<ToolTip="If not empty, change the effect's material to this.">;

var() bool Animate; //Animate the effect?
var() string AnimateParameter<EditCondition=Animate|ToolTip="Effect material parameter to animate. Ideally, this should be a scalar parameter.">;
var() InterpCurveFloat AnimateCurve<EditCondition=Animate|ToolTip="Interpolation curve to use when animating effects.">;
var() bool HideAfterAnimating<EditCondition=Animate|ToolTip="Hide the effect after animating it? Use this for slightly more efficient rendering if you fade out an effect.">;

static event int GetObjClassVersion()
{
	return Super.GetObjClassVersion()+4;
}

defaultproperties
{
    ObjName="Toggle Post Process Effect"
    ObjCategory="Visuals"

    InputLinks(0)=(LinkDesc="Show")
    InputLinks(1)=(LinkDesc="Hide")
    InputLinks(2)=(LinkDesc="Toggle")

    VariableLinks(1)=(ExpectedType=class'SeqVar_String',LinkDesc="Effect Name",PropertyName=EffectName)

    bCallHandler = false;
    AnimateParameter = "Alpha";
}

function HidePostProcessEffect(Object Player)
{
    local MaterialEffect Effect;

    if (Hat_PlayerController(Player) == None) return;

    Effect = MaterialEffect(LocalPlayer(Hat_PlayerController(Player).Player).PlayerPostProcess.FindPostProcessEffect(Name(EffectName)));
    Effect.bShowInGame = false;
}

event Activated()
{
    local Object Player;
    local MaterialEffect Effect;
    local MaterialInstanceTimeVarying EffectMat;
    
    foreach Targets(Player)
    {
        if (Hat_PlayerController(Player) == None) continue;

        Effect = MaterialEffect(LocalPlayer(Hat_PlayerController(Player).Player).PlayerPostProcess.FindPostProcessEffect(Name(EffectName)));
        if (Effect == None) continue;
        if (MaterialOverride != None) Effect.SetMaterial(MaterialOverride);

        if (Animate) {
            EffectMat = new(Effect) class'MaterialInstanceTimeVarying';
            EffectMat.SetParent(Effect.GetMaterial());
            if (EffectMat != None)
            {
                Effect.SetMaterial(EffectMat);
                EffectMat.SetScalarCurveParameterValue(Name(AnimateParameter), AnimateCurve);
	            EffectMat.SetScalarStartTime(Name(AnimateParameter), 0);
            }

            if (HideAfterAnimating)
                GetWorldInfo().Game.SetTimer(AnimateCurve.Points[AnimateCurve.Points.Length - 1].InVal, false, NameOf(HidePostProcessEffect), self, Player);
        }

        if (InputLinks[0].bHasImpulse)
            Effect.bShowInGame = true;
        else if (InputLinks[1].bHasImpulse)
            Effect.bShowInGame = false;
        else if (InputLinks[2].bHasImpulse)
            Effect.bShowInGame = !Effect.bShowInGame;
    }
}