Onejsky4U/Plugins/Runtime/HoudiniEngine/Source/HoudiniEngineRuntime/Private/HoudiniAssetActor.cpp

/*
* Copyright (c) <2017> Side Effects Software Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Produced by:
*      Damian Campeanu, Mykola Konyk
*      Side Effects Software Inc
*      123 Front Street West, Suite 1401
*      Toronto, Ontario
*      Canada   M5J 2M2
*      416-504-9876
*
*/

#include "HoudiniAssetActor.h"

#include "HoudiniApi.h"
#include "HoudiniEngineRuntimePrivatePCH.h"
#include "HoudiniAsset.h"
#include "HoudiniAssetComponent.h"
#include "HoudiniEngine.h"
#include "HoudiniEngineUtils.h"

AHoudiniAssetActor::AHoudiniAssetActor( const FObjectInitializer & ObjectInitializer )
    : Super( ObjectInitializer )
    , CurrentPlayTime( 0.0f )
{
    SetCanBeDamaged(false);
    PrimaryActorTick.bCanEverTick = true;
    PrimaryActorTick.bStartWithTickEnabled = true;

    // Create Houdini component and attach it to a root component.
    HoudiniAssetComponent =
        ObjectInitializer.CreateDefaultSubobject< UHoudiniAssetComponent >( this, TEXT("HoudiniAssetComponent" ) );

    HoudiniAssetComponent->SetCollisionProfileName( UCollisionProfile::BlockAll_ProfileName );
    RootComponent = HoudiniAssetComponent;
}

UHoudiniAssetComponent *
AHoudiniAssetActor::GetHoudiniAssetComponent() const
{
    return HoudiniAssetComponent;
}

bool
AHoudiniAssetActor::IsUsedForPreview() const
{
    return HasAnyFlags( RF_Transient );
}

void
AHoudiniAssetActor::ResetHoudiniCurrentPlaytime()
{
    CurrentPlayTime = 0.0f;
}

float
AHoudiniAssetActor::GetHoudiniCurrentPlaytime() const
{
    return CurrentPlayTime;
}

#if WITH_EDITOR

bool
AHoudiniAssetActor::ShouldImport( FString * ActorPropString, bool IsMovingLevel )
{
    if (!ActorPropString)
        return false;

    // Locate actor which is being copied in clipboard string.
    AHoudiniAssetActor * CopiedActor = FHoudiniEngineUtils::LocateClipboardActor(this, *ActorPropString );

    // We no longer need clipboard string and can empty it. This seems to avoid occasional crash bug in UE4 which
    // happens on copy / paste.
    //ActorPropString->Empty();

    if( !CopiedActor || CopiedActor->IsPendingKill() )
    {
        HOUDINI_LOG_WARNING( TEXT("Failed to import from copy: Duplicated actor not found") );
        return false;
    }

    // Get Houdini component of an actor which is being copied.
    UHoudiniAssetComponent * CopiedActorHoudiniAssetComponent = CopiedActor->HoudiniAssetComponent;
    if (!CopiedActorHoudiniAssetComponent || CopiedActorHoudiniAssetComponent->IsPendingKill() )
        return false;

    HoudiniAssetComponent->OnComponentClipboardCopy( CopiedActorHoudiniAssetComponent );

    // If actor is copied through moving, we need to copy main transform.
    const FTransform & ComponentWorldTransform = CopiedActorHoudiniAssetComponent->GetComponentTransform();
        HoudiniAssetComponent->SetWorldLocationAndRotation(
            ComponentWorldTransform.GetLocation(),
            ComponentWorldTransform.GetRotation() );

    // We also need to copy actor label.
    const FString & CopiedActorLabel = CopiedActor->GetActorLabel();
    FActorLabelUtilities::SetActorLabelUnique( this, CopiedActorLabel );

    return true;
}

bool 
AHoudiniAssetActor::GetReferencedContentObjects( TArray< UObject * >& Objects ) const
{
    Super::GetReferencedContentObjects( Objects );

    if ( HoudiniAssetComponent && !HoudiniAssetComponent->IsPendingKill() )
    {
        UHoudiniAsset* HoudiniAsset = HoudiniAssetComponent->GetHoudiniAsset();
        if ( HoudiniAsset && !HoudiniAsset->IsPendingKill() )
            Objects.AddUnique( HoudiniAsset );
    }

    return true;
}


bool
AHoudiniAssetActor::ShouldExport()
{
    return true;
}

void
AHoudiniAssetActor::PostEditChangeProperty(FPropertyChangedEvent & PropertyChangedEvent)
{
    Super::PostEditChangeProperty(PropertyChangedEvent);

    // Some property changes need to be forwarded to the component (ie Transform)
    if ( !HoudiniAssetComponent || HoudiniAssetComponent->IsPendingKill() )
        return;

    FProperty * Property = PropertyChangedEvent.MemberProperty;
    if ( !Property )
        return;

    if ( ( Property->GetName() == TEXT( "RelativeLocation" ) )
        || ( Property->GetName() == TEXT( "RelativeRotation" ) )
        || ( Property->GetName() == TEXT( "RelativeScale3D" ) ) )
    {
        // Transform has changed
        HoudiniAssetComponent->CheckedUploadTransform();
    }
}

#endif