Editor
Class BrushBuilder

Core.Object
   |
   +--Editor.BrushBuilder

// Native support.

00001	//=============================================================================
00002	// BrushBuilder: Base class of UnrealEd brush builders.
00003	//
00004	// Tips for writing brush builders:
00005	//
00006	// * Always validate the user-specified and call BadParameters function
00007	//   if anything is wrong, instead of actually building geometry.
00008	//   If you build an invalid brush due to bad user parameters, you'll
00009	//   cause an extraordinary amount of pain for the poor user.
00010	//
00011	// * When generating polygons with more than 3 vertices, BE SURE all the
00012	//   polygon's vertices are coplanar!  Out-of-plane polygons will cause
00013	//   geometry to be corrupted.
00014	//=============================================================================
00015	class BrushBuilder
00016		extends Object
00017		abstract
00018		native;
00019	
00020	var(BrushBuilder) string BitmapFilename;
00021	var(BrushBuilder) string ToolTip;
00022	
00023	// Internal state, not accessible to script.
00024	struct BuilderPoly
00025	{
00026		var array<int> VertexIndices;
00027		var int Direction;
00028		var name Item;
00029		var int PolyFlags;
00030	};
00031	var private array<vector> Vertices;
00032	var private array<BuilderPoly> Polys;
00033	var private name Group;
00034	var private bool MergeCoplanars;
00035	
00036	// Native support.
00037	native function BeginBrush( bool MergeCoplanars, name Group );
00038	native function bool EndBrush();
00039	native function int GetVertexCount();
00040	native function vector GetVertex( int i );
00041	native function int GetPolyCount();
00042	native function bool BadParameters( optional string msg );
00043	native function int Vertexv( vector v );
00044	native function int Vertex3f( float x, float y, float z );
00045	native function Poly3i( int Direction, int i, int j, int k, optional name ItemName, optional int PolyFlags );
00046	native function Poly4i( int Direction, int i, int j, int k, int l, optional name ItemName, optional int PolyFlags );
00047	native function PolyBegin( int Direction, optional name ItemName, optional int PolyFlags );
00048	native function Polyi( int i );
00049	native function PolyEnd();
00050	
00051	// Build interface.
00052	event bool Build();
00053	
00054	defaultproperties
00055	{
00056	     BitmapFilename="BBGeneric"
00057	     ToolTip="Generic Builder"
00058	}