#pragma once
#include "segment.h"

extern	segment  *Cursegp;				// Pointer to current segment in the mine, the one to which things happen.
#ifdef DXX_BUILD_DESCENT_II
#define Curseg2p s2s2(Cursegp)          // Pointer to segment2 for Cursegp
#endif

#if defined(DXX_BUILD_DESCENT_I)
extern        segment  New_segment;                   // The segment which can be added to the mine.
#elif defined(DXX_BUILD_DESCENT_II)
// -- extern	segment  New_segment;			// The segment which can be added to the mine.
#define	New_segment	(Segments[MAX_SEGMENTS-1])
#endif

extern	int		Curside;					// Side index in 0..MAX_SIDES_PER_SEGMENT of active side.
extern	int		Curedge;					//	Current edge on current side, in 0..3
extern	int		Curvert;					//	Current vertex on current side, in 0..3
extern	int		AttachSide;				//	Side on segment to attach
extern	int		Draw_all_segments;	// Set to 1 means draw_world draws all segments in Segments, else draw only connected segments
extern	segment	*Markedsegp;			// Marked segment, used in conjunction with *Cursegp to form joints.
extern	int		Markedside;				// Marked side on Markedsegp.
extern  sbyte   Vertex_active[MAX_VERTICES]; // !0 means vertex is in use, 0 means not in use.

// The extra group in the following arrays is used for group rotation.
extern 	group		GroupList[MAX_GROUPS+1];
extern 	segment  *Groupsegp[MAX_GROUPS+1];
extern 	int		Groupside[MAX_GROUPS+1];
extern	int 		current_group;
extern	int 		num_groups; 
extern	int		Current_group;

extern	short		Found_segs[];			// List of segment numbers "found" under cursor click
extern	int		N_found_segs;			// Number of segments found at Found_segs

extern	int		N_selected_segs;		// Number of segments found at Selected_segs
extern	short		Selected_segs[];		// List of segment numbers currently selected

extern	int		N_warning_segs;		// Number of segments warning-worthy, such as a concave segment
extern	short		Warning_segs[];		// List of warning-worthy segments