206 lines
5.3 KiB
C
206 lines
5.3 KiB
C
/* $Id: ksegsel.c,v 1.1.1.1 2006/03/17 19:58:50 zicodxx Exp $ */
|
|
/*
|
|
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
|
|
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
|
|
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
|
|
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
|
|
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
|
|
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
|
|
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
|
|
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
|
|
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
|
|
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* Functions for selecting segments
|
|
*
|
|
*/
|
|
|
|
#ifdef RCS
|
|
static char rcsid[] = "$Id: ksegsel.c,v 1.1.1.1 2006/03/17 19:58:50 zicodxx Exp $";
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#include "inferno.h"
|
|
#include "editor/editor.h"
|
|
|
|
|
|
// ---------------------------------------------------------------------------------------
|
|
// Select previous segment.
|
|
// If there is a connection on the side opposite to the current side, then choose that segment.
|
|
// If there is no connecting segment on the opposite face, try any segment.
|
|
void get_previous_segment(int curseg_num, int curside,int *newseg_num, int *newside)
|
|
{
|
|
int s;
|
|
|
|
*newseg_num = curseg_num;
|
|
|
|
if (IS_CHILD(Segments[curseg_num].children[(int)Side_opposite[curside]]))
|
|
*newseg_num = Segments[curseg_num].children[(int)Side_opposite[curside]];
|
|
else // no segment on opposite face, connect to anything
|
|
for (s=0; s<MAX_SIDES_PER_SEGMENT; s++)
|
|
if ((s != curside) && IS_CHILD(Segments[curseg_num].children[s]))
|
|
*newseg_num = Segments[curseg_num].children[s];
|
|
|
|
// Now make Curside point at the segment we just left (unless we couldn't leave it).
|
|
if (*newseg_num != curseg_num)
|
|
*newside = find_connect_side(&Segments[curseg_num],&Segments[*newseg_num]);
|
|
else
|
|
*newside = curside;
|
|
}
|
|
|
|
|
|
// --------------------------------------------------------------------------------------
|
|
// Select next segment.
|
|
// If there is a connection on the current side, then choose that segment.
|
|
// If there is no connecting segment on the current side, try any segment.
|
|
void get_next_segment(int curseg_num, int curside, int *newseg_num, int *newside)
|
|
{
|
|
int s;
|
|
|
|
if (IS_CHILD(Segments[curseg_num].children[curside])) {
|
|
|
|
*newseg_num = Segments[curseg_num].children[Curside];
|
|
|
|
// Find out what side we came in through and favor side opposite that
|
|
*newside = Side_opposite[find_connect_side(&Segments[curseg_num],&Segments[*newseg_num])];
|
|
|
|
// If there is nothing attached on the side opposite to what we came in (*newside), pick any other side
|
|
if (!IS_CHILD(Segments[*newseg_num].children[*newside]))
|
|
for (s=0; s<MAX_SIDES_PER_SEGMENT; s++)
|
|
if ((Segments[*newseg_num].children[s] != curseg_num) && IS_CHILD(Segments[*newseg_num].children[s]))
|
|
*newside = s;
|
|
} else {
|
|
*newseg_num = curseg_num;
|
|
*newside = curside;
|
|
}
|
|
|
|
}
|
|
|
|
// ---------- select current segment ----------
|
|
int SelectCurrentSegForward()
|
|
{
|
|
int newseg_num,newside;
|
|
|
|
get_next_segment(Cursegp-Segments,Curside,&newseg_num,&newside);
|
|
|
|
if (newseg_num != Cursegp-Segments) {
|
|
Cursegp = &Segments[newseg_num];
|
|
Curside = newside;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
if (Lock_view_to_cursegp)
|
|
set_view_target_from_segment(Cursegp);
|
|
|
|
med_create_new_segment_from_cursegp();
|
|
mine_changed = 1;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
// -------------------------------------------------------------------------------------
|
|
int SelectCurrentSegBackward()
|
|
{
|
|
int newseg_num,newside;
|
|
|
|
get_previous_segment(Cursegp-Segments,Curside,&newseg_num,&newside);
|
|
|
|
Cursegp = &Segments[newseg_num];
|
|
Curside = newside;
|
|
|
|
if (Lock_view_to_cursegp)
|
|
set_view_target_from_segment(Cursegp);
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
med_create_new_segment_from_cursegp();
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
// ---------- select next/previous side on current segment ----------
|
|
int SelectNextSide()
|
|
{
|
|
if (++Curside >= MAX_SIDES_PER_SEGMENT)
|
|
Curside = 0;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
int SelectPrevSide()
|
|
{
|
|
if (--Curside < 0)
|
|
Curside = MAX_SIDES_PER_SEGMENT-1;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
// ---------- Copy current segment and side to marked segment and side ----------
|
|
|
|
int CopySegToMarked()
|
|
{
|
|
autosave_mine(mine_filename);
|
|
strcpy(undo_status[Autosave_count], "Mark Segment UNDONE.");
|
|
Markedsegp = Cursegp;
|
|
Markedside = Curside;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
// ---------- select absolute face on segment ----------
|
|
|
|
int SelectBottom()
|
|
{
|
|
Curside = WBOTTOM;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
int SelectFront()
|
|
{
|
|
Curside = WFRONT;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
int SelectTop()
|
|
{
|
|
Curside = WTOP;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
int SelectBack()
|
|
{
|
|
Curside = WBACK;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
int SelectLeft()
|
|
{
|
|
Curside = WLEFT;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|
|
int SelectRight()
|
|
{
|
|
Curside = WRIGHT;
|
|
Update_flags |= UF_ED_STATE_CHANGED;
|
|
mine_changed = 1;
|
|
return 1;
|
|
}
|
|
|