#ifndef SetBrush_h
#define SetBrush_h

#include <AppKit/AppKit.h>

#include "QF/mathlib.h"

#include "TexturePalette.h"

#define     MAX_FACES 16

typedef  struct {
	int     numpoints;
	vec5_t  points[8];              // variable sized
} winding_t;

#define MAX_POINTS_ON_WINDING 64

typedef  struct {
	vec3_t  normal;
	float   dist;
} plane_t;

typedef  struct {
// implicit rep
	vec3_t          planepts[3];
	texturedef_t    texture;

// cached rep
	plane_t     plane;
	qtexture_t  *qtexture;
	float       light;              // 0 - 1.0
	winding_t   *w;
} face_t;

#define ON_EPSILON      0.1
#define FP_EPSILON      0.01
#define VECTOR_EPSILON  0.0001

#define SIDE_FRONT      0
#define SIDE_BACK       1
#define SIDE_ON         2

winding_t  *ClipWinding (winding_t * in, plane_t *split);
winding_t  *CopyWinding (winding_t * w);
winding_t  *NewWinding (int points);

@interface SetBrush: NSObject
{
	BOOL    regioned;               // not active
	BOOL    selected;
	BOOL    invalid;                // not a proper polyhedron

	id      parent;                 // the entity this brush is in
	vec3_t  bmins, bmaxs;
	vec3_t  entitycolor;
	int     numfaces;
	face_t  faces[MAX_FACES];
}

- (SetBrush *) initOwner: (id)own
   mins: (float *)mins
   maxs: (float *)maxs
   texture: (texturedef_t *)tex;

- (id) initFromScript: (struct script_s *)script
   owner: (id)own;

- (id) setMins: (float *)mins maxs: (float *)maxs;

- (id) parent;
- (id) setParent: (id)p;

- (id) setEntityColor: (vec3_t)color;

- (id) calcWindings;

- (void) writeToFILE: (FILE *)f region: (BOOL)reg;

- (BOOL) selected;
- (BOOL) regioned;
- (void) setSelected: (BOOL)s;
- (void) setRegioned: (BOOL)s;

- (void) getMins: (vec3_t)mins maxs: (vec3_t)maxs;

- (BOOL) containsPoint: (vec3_t)pt;

- (void) freeWindings;
- (id) removeIfInvalid;

extern vec3_t  region_min, region_max;

- (id) newRegion;

- (texturedef_t *) texturedef;
- (texturedef_t *) texturedefForFace: (int)f;
- (void) setTexturedef: (texturedef_t *)tex;
- (void) setTexturedef: (texturedef_t *)tex forFace: (int)f;

- (void) XYDrawSelf;
- (void) ZDrawSelf;
- (void) CameraDrawSelf;
- (void) XYRenderSelf;
- (void) CameraRenderSelf;

- (void) hitByRay: (vec3_t)p1: (vec3_t)p2: (float *)time: (int *)face;

//
// single brush actions
//
extern int      numcontrolpoints;
extern float    *controlpoints[MAX_FACES * 3];

- (void) getZdragface: (vec3_t)dragpoint;
- (void) getXYdragface: (vec3_t)dragpoint;
- (void) getXYShearPoints: (vec3_t)dragpoint;

- (id) addFace: (face_t *)f;

//
// multiple brush actions
//
- (void) carveByClipper;

extern vec3_t  sb_translate;

- (void) translate;

extern id  carve_in, carve_out;

- (void) select;
- (void) deselect;
- (void) remove;
- (void) flushTextures;

extern vec3_t  sb_mins, sb_maxs;

- (void) addToBBox;

extern vec3_t   sel_x, sel_y, sel_z;
extern vec3_t   sel_org;

- (void) transform;

- (void) flipNormals;

- (id) carve;
- (void) setCarveVars;

extern id  sb_newowner;

- (void) moveToEntity;

- (void) takeCurrentTexture;

extern vec3_t  select_min, select_max;

- (void) selectPartial;
- (void) selectComplete;
- (void) regionPartial;
- (void) regionComplete;

extern float  sb_floor_dir, sb_floor_dist;

- (void) feetToFloor;

- (int) getNumBrushFaces;
- (face_t *) getBrushFace: (int)which;

@end
#endif // SetBrush_h