//-----------------------------------------------------------------------------
//	BSPLIB MODULE: ObjectBspFormat.cpp
//
//  Copyright (c) 1996-1997 by Markus Hadwiger
//  All Rights Reserved.
//-----------------------------------------------------------------------------

// bsplib header files
#include "BspLibDefs.h"
#include "ObjectBspFormat.h"


BSPLIB_NAMESPACE_BEGIN


// write list of vertices -----------------------------------------------------
//
int ObjectBspFormat::WriteVertexList( FileAccess& output )
{
	if ( numvertices > 0 ) {

		output.WriteLine( "; list of all vertices comprising the object -----------------------------\n" );
		output.WriteLine( "; numbering starts with 1\n" );

		sprintf( line, "%s\n", _vertices_str );
		output.WriteLine( line );

		for ( int i = 0; i < numvertices; i++ ) {
			sprintf( line, "%f,\t%f,\t%f\t; %d\n",
					 vertexlist[ i ].getX(),
					 vertexlist[ i ].getY(),
					 vertexlist[ i ].getZ(),
					 i + 1 );
			output.WriteLine( line );
		}

		output.WriteLine( "\n" );
	}

	return output.Status();
}


// write list of polygons -----------------------------------------------------
//
int ObjectBspFormat::WritePolygonList( FileAccess& output )
{
	if ( numbsppolygons > 0 ) {

		output.WriteLine( "; list of all polygons (faces split into pieces by bsp compiler) ---------\n" );
		output.WriteLine( "; numbering starts with 1\n" );

		sprintf( line, "%s\n", _polygons_str );
		output.WriteLine( line );

		int i = 0;
		Polygon *poly;
		while ( !bsptree.TreeEmpty() && ( ( poly = bsptree->FetchBSPPolygon( i ) ) != NULL ) ) {
			poly->WriteVertexList( output, FALSE );
			sprintf( line, "\t\t; %d\n", ++i );
			output.WriteLine( line );
		}
		output.WriteLine( "\n" );

		if ( i < numpolygons_before_bsp )
			ErrorMessage( "***ERROR*** Polygon missing in BSP tree (ObjectBspFormat::WritePolygonList())." );
	}

	return output.Status();
}


// write list of faces (each face consists of one to many polygons) -----------
//
int ObjectBspFormat::WriteFaceList( FileAccess& output )
{
	if ( numfaces > 0 ) {

		output.WriteLine( "; list of polygons comprising each face ----------------------------------\n" );
		output.WriteLine( "; numbering starts with 1\n" );

		sprintf( line, "%s\n", _faces_str );
		output.WriteLine( line );

		for ( int i = 0; i < numfaces; i++ ) {
			PolygonList facepolylist( this );
			if ( !bsptree.TreeEmpty() )
				bsptree->FetchFacePolygons( i, facepolylist );
			facepolylist.WritePolyList( output, i + 1 );
		}

		output.WriteLine( "\n" );
	}

	return output.Status();
}


// write surface properties of faces ------------------------------------------
//
int ObjectBspFormat::WriteFaceProperties( FileAccess& output )
{
	if ( numfaces > 0 ) {

		output.WriteLine( "; face material properties (color, texture, etc.) ------------------------\n" );

		sprintf( line, "%s\n", _faceproperties_str );
		output.WriteLine( line );

		for ( int i = 0; i < numfaces; i++ )
			facelist[ i ].WriteFaceInfo( output );

		output.WriteLine( "\n" );
	}

	return output.Status();
}


// write face normals ---------------------------------------------------------
//
int ObjectBspFormat::WriteNormals( FileAccess& output )
{
	if ( numnormals > 0 ) {

		output.WriteLine( "; face normals -----------------------------------------------------------\n" );

		sprintf( line, "%s\n", _facenormals_str );
		output.WriteLine( line );

		for ( int i = 0; i < numfaces /*numnormals*/; i++ )
			facelist[ i ].WriteNormalInfo( output );

		output.WriteLine( "\n" );
	}

	return output.Status();
}


// write list of textures -----------------------------------------------------
//
int ObjectBspFormat::WriteTextureList( FileAccess& output )
{
	if ( numtextures > 0 ) {

		output.WriteLine( "; texture definitions (sizes and filenames) ------------------------------\n" );

		sprintf( line, "%s\n", _textures_str );
		output.WriteLine( line );

		for ( int i = 0; i < numtextures; i++ )
			texturelist[ i ].WriteInfo( output );
	}

	return output.Status();
}


// write list of mapping coordinates (correspondences) ------------------------
//
int ObjectBspFormat::WriteMappingList( FileAccess& output )
{
	if ( numtexmappedfaces > 0 ) {

		output.WriteLine( "; mapping parameters for textured faces ----------------------------------\n" );
		sprintf( line, "%s\n", _correspondences_str );
		output.WriteLine( line );
		output.WriteLine( "\n" );

		int curfaceno = 0;
		for ( int i = 0; i < numtexmappedfaces; i++, curfaceno++ ) {
			while ( !facelist[ curfaceno ].FaceTexMapped() )
				curfaceno++;
			sprintf( line, "; correspondence %d (face %d)\n", i + 1, curfaceno + 1 );
			output.WriteLine( line );

			facelist[ curfaceno ].WriteMappingInfo( output );
		}
	}

	return output.Status();
}


// write textual representation of bsp tree to output file --------------------
//
int ObjectBspFormat::WriteBSPTree( FileAccess& output )
{
	if ( !bsptree.TreeEmpty() ) {

		output.WriteLine( "; polygon bsp tree -------------------------------------------------------\n" );

		sprintf( line, "%s\n", _bsptree_str );
		output.WriteLine( line );

		bsptree->WriteBSPTree( output );

		output.WriteLine( "\n" );
	}

	return output.Status();
}


// string scratchpad ----------------------------------------------------------
//
char ObjectBspFormat::line[ 1024 ] = "";


BSPLIB_NAMESPACE_END

//-----------------------------------------------------------------------------