// ------------------------------------------------------------------------------------------------
//                                                           ___                  __   ___    ___ ®    
// Copyright © 2009-2010, All rights reserved                 __)|    /\ \__||   /  \ /    | /    
// Playlogic games factory, Breda                            |   |___/__\ __||___\__/ \__| | \___   
//
// ------------------------------------------------------------------------------------------------

#include "PLBase.h"

IMPLEMENT_CLASS( APLTextMesh );

void APLTextMesh::InitTextTexture()
{
	// Ensure we have a texture
	if ( TextTexture == NULL )
	{
		TextTexture = ConstructObject< UPLTextTexture >( UPLTextTexture::StaticClass(), this );
	}

	// Ensure that this class is in the interfaces list
	new( TextTexture->TextActors ) TScriptInterface<class IPLTextActorInterface>( this );

	// Initialize the texture
	TextTexture->UpdateText();
}

void APLTextMesh::PostLoad()
{
	Super::PostLoad();

	// Ensure we have a properly initialized texture
	if ( GIsEditor && TextTexture == NULL )
	{
		InitTextTexture();
	}

	if ( GIsEditor && StaticMeshComponent != NULL )
	{
		// Ensure we have our own MIC, non-recurring
		UMaterialInstanceConstant* Material = Cast< UMaterialInstanceConstant >( StaticMeshComponent->GetMaterial( 0 ) );
		if ( Material != NULL && Material->IsIn( this ) && Material->Parent != NULL && Material->Parent->IsInA( StaticClass() ) )
		{
			UMaterialInterface* Parent = Material->Parent;
			while ( Parent != NULL && Parent->IsA( UMaterialInstanceConstant::StaticClass() ) && Parent->IsInA( StaticClass() ) )
			{
				UMaterialInstanceConstant* Current = CastChecked< UMaterialInstanceConstant >( Parent );
				Parent = Current->Parent;
			}
			Material->SetParent( Parent );
		}
	}
}

void APLTextMesh::PostEditImport()
{
	Super::PostEditImport();

	// Ensure we have our own MIC
	UMaterialInstanceConstant* Material = Cast< UMaterialInstanceConstant >( StaticMeshComponent->GetMaterial( 0 ) );

	if ( Material != NULL && Material->GetOuter() != NULL && Material->IsInA( StaticClass() ) )
	{
		StaticMeshComponent->SetMaterial( 0, Material->Parent );
	}
	TextTexture->TextActors.Reset();
	InitTextTexture();
}

void APLTextMesh::Spawned()
{
	Super::Spawned();

	// Just spawned, initialize texture
	InitTextTexture();
}

void APLTextMesh::TextSizeChanged( UObject* Sender, FVector2D const & NewTextSize, FVector2D const & NewUVs )
{
	FComponentReattachContext ReattachContext( StaticMeshComponent );

	// Update mesh width and height
	if ( StaticMeshComponent->StaticMesh != NULL )
	{
		StaticMeshComponent->Scale3D = FVector( 1.0f, NewTextSize.X / Max< FLOAT >( SMALL_NUMBER, StaticMeshComponent->StaticMesh->Bounds.BoxExtent.Y ), NewTextSize.Y / Max< FLOAT >( SMALL_NUMBER, StaticMeshComponent->StaticMesh->Bounds.BoxExtent.Z ) );
	}
	else
	{
		StaticMeshComponent->Scale3D = FVector( NewTextSize.X, 0.0f, NewTextSize.Y );
	}

	// Ensure we have our own MIC
	UMaterialInstanceConstant* Material = Cast< UMaterialInstanceConstant >( StaticMeshComponent->GetMaterial( 0 ) );

	if ( Material == NULL || !Material->IsIn( this ) )
	{
		Material = ConstructObject< UMaterialInstanceConstant >( UMaterialInstanceConstant::StaticClass(), this );
		check( Material );

		UMaterialInterface* ParentMat = StaticMeshComponent->GetMaterial( 0 );
		Material->SetParent( ParentMat );

		StaticMeshComponent->SetMaterial( 0, Material );
	}

	// Update parameters
	Material->SetTextureParameterValue( TextureParameterName, TextTexture );
	Material->SetVectorParameterValue( UVParameterName, FLinearColor( NewUVs.X, NewUVs.Y, 0.0, 0.0 ) );
}

void APLTextMesh::CheckForErrors()
{
	Super::CheckForErrors();

	// Ensure we have our own MIC
	UMaterialInstanceConstant* Material = Cast< UMaterialInstanceConstant >( StaticMeshComponent->GetMaterial( 0 ) );
	if ( Material != NULL && Material->IsIn( this ) && Material->Parent != NULL )
	{
		if ( Material->Parent->IsIn( this ) )
		{
			GWarn->MapCheck_Add( MCTYPE_ERROR, this, *FString::Printf( TEXT( "%s: Multiple Recursive Material, please recreate!" ), *GetName() ), MCACTION_DELETE );
		}
		else if ( Material->Parent->IsInA( StaticClass() ) )
		{
			GWarn->MapCheck_Add( MCTYPE_ERROR, this, *FString::Printf( TEXT( "%s: Cross-actor material reference, please recreate!" ), *GetName() ), MCACTION_DELETE );
		}
	}
}