2016-02-15 01:14:34 +00:00
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#ifndef __P_MAPUTL_H
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#define __P_MAPUTL_H
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2016-03-28 20:47:45 +00:00
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#include <float.h>
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2016-02-15 01:14:34 +00:00
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#include "r_defs.h"
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#include "doomstat.h"
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2019-01-29 18:28:22 +00:00
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#include "doomdata.h"
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2016-02-19 13:08:41 +00:00
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#include "m_bbox.h"
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2020-04-11 10:17:28 +00:00
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#include "cmdlib.h"
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2016-02-15 01:14:34 +00:00
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extern int validcount;
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2017-03-10 01:22:42 +00:00
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struct FBlockNode;
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2016-02-15 01:14:34 +00:00
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2016-03-21 23:06:58 +00:00
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struct divline_t
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2016-03-21 21:20:10 +00:00
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{
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2016-03-21 23:06:58 +00:00
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double x;
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double y;
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double dx;
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double dy;
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2016-03-21 21:20:10 +00:00
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};
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2016-02-15 01:14:34 +00:00
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struct intercept_t
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{
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2016-03-31 14:52:25 +00:00
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double frac;
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2016-02-15 01:14:34 +00:00
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bool isaline;
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bool done;
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union {
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AActor *thing;
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line_t *line;
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} d;
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};
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//==========================================================================
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//
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// P_PointOnLineSide
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//
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// Returns 0 (front/on) or 1 (back)
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// [RH] inlined, stripped down, and made more precise
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//
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//==========================================================================
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2016-03-31 19:13:32 +00:00
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inline int P_PointOnLineSidePrecise(double x, double y, const line_t *line)
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2016-02-15 01:14:34 +00:00
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{
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2016-06-30 09:30:32 +00:00
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return (y - line->v1->fY()) * line->Delta().X + (line->v1->fX() - x) * line->Delta().Y > EQUAL_EPSILON;
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2016-02-15 01:14:34 +00:00
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}
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2016-03-31 19:13:32 +00:00
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inline int P_PointOnLineSidePrecise(const DVector2 &pt, const line_t *line)
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2016-02-15 01:14:34 +00:00
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{
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2016-06-30 09:30:32 +00:00
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return (pt.Y - line->v1->fY()) * line->Delta().X + (line->v1->fX() - pt.X) * line->Delta().Y > EQUAL_EPSILON;
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2016-02-15 01:14:34 +00:00
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}
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2016-03-31 19:13:32 +00:00
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inline int P_PointOnLineSide (double x, double y, const line_t *line)
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2016-03-25 17:19:54 +00:00
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{
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2016-03-31 19:13:32 +00:00
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extern int P_VanillaPointOnLineSide(double x, double y, const line_t* line);
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2019-01-29 18:28:22 +00:00
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return (line->flags & ML_COMPATSIDE)
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2016-03-31 19:13:32 +00:00
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? P_VanillaPointOnLineSide(x, y, line) : P_PointOnLineSidePrecise(x, y, line);
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2016-03-25 17:19:54 +00:00
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}
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inline int P_PointOnLineSide(const DVector2 & p, const line_t *line)
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{
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2016-03-31 19:13:32 +00:00
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return P_PointOnLineSide(p.X, p.Y, line);
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2016-03-25 17:19:54 +00:00
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}
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2016-03-20 09:52:10 +00:00
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2016-02-15 01:14:34 +00:00
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//==========================================================================
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//
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2016-03-31 14:52:25 +00:00
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// P_PointOnDivlineSideCompat
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2016-02-15 01:14:34 +00:00
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//
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// Same as P_PointOnLineSide except it uses divlines
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// [RH] inlined, stripped down, and made more precise
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//
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//==========================================================================
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2016-03-31 14:52:25 +00:00
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inline int P_PointOnDivlineSide(double x, double y, const divline_t *line)
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2016-02-15 01:14:34 +00:00
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{
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2016-06-30 09:30:32 +00:00
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return (y - line->y) * line->dx + (line->x - x) * line->dy > EQUAL_EPSILON;
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2016-02-15 01:14:34 +00:00
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}
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2016-03-31 14:52:25 +00:00
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inline int P_PointOnDivlineSide(const DVector2 &pos, const divline_t *line)
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2016-03-21 23:06:58 +00:00
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{
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2016-06-30 09:30:32 +00:00
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return (pos.Y - line->y) * line->dx + (line->x - pos.X) * line->dy > EQUAL_EPSILON;
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2016-03-28 14:22:21 +00:00
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}
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2016-02-15 01:14:34 +00:00
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//==========================================================================
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//
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// P_MakeDivline
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//
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//==========================================================================
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2016-03-27 11:29:58 +00:00
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inline void P_MakeDivline(const line_t *li, divline_t *dl)
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{
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dl->x = li->v1->fX();
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dl->y = li->v1->fY();
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dl->dx = li->Delta().X;
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dl->dy = li->Delta().Y;
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}
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2016-02-15 01:14:34 +00:00
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struct FLineOpening
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{
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2016-03-25 17:19:54 +00:00
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double top;
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double bottom;
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double range;
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double lowfloor;
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2016-02-15 01:14:34 +00:00
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sector_t *bottomsec;
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sector_t *topsec;
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FTextureID ceilingpic;
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FTextureID floorpic;
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2016-02-21 15:56:21 +00:00
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secplane_t frontfloorplane;
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secplane_t backfloorplane;
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2016-02-15 01:14:34 +00:00
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int floorterrain;
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bool touchmidtex;
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bool abovemidtex;
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2019-02-09 09:39:08 +00:00
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uint8_t lowfloorthroughportal;
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2018-11-04 04:53:37 +00:00
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F3DFloor *topffloor;
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F3DFloor *bottomffloor;
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2016-02-15 01:14:34 +00:00
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};
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2016-03-25 17:19:54 +00:00
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static const double LINEOPEN_MIN = -FLT_MAX;
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static const double LINEOPEN_MAX = FLT_MAX;
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2019-01-29 15:06:17 +00:00
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void P_LineOpening(FLineOpening &open, AActor *thing, const line_t *linedef, const DVector2 &xy, const DVector2 *ref = nullptr, int flags = 0);
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2016-03-27 11:29:58 +00:00
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inline void P_LineOpening(FLineOpening &open, AActor *thing, const line_t *linedef, const DVector2 &xy, const DVector3 *ref, int flags = 0)
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2016-03-26 22:19:38 +00:00
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{
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P_LineOpening(open, thing, linedef, xy, reinterpret_cast<const DVector2*>(ref), flags);
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}
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2016-03-25 17:19:54 +00:00
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2016-02-15 01:14:34 +00:00
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class FBoundingBox;
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struct polyblock_t;
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2016-02-19 09:39:40 +00:00
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//============================================================================
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//
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// This is a dynamic array which holds its first MAX_STATIC entries in normal
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// variables to avoid constant allocations which this would otherwise
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// require.
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//
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// When collecting touched portal groups the normal cases are either
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// no portals == one group or
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// two portals = two groups
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//
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// Anything with more can happen but far less infrequently, so this
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// organization helps avoiding the overhead from heap allocations
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// in the vast majority of situations.
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//
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//============================================================================
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struct FPortalGroupArray
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{
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2016-02-28 22:08:32 +00:00
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// Controls how groups are connected
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enum
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{
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PGA_NoSectorPortals,// only collect line portals
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PGA_CheckPosition, // only collects sector portals at the actual position
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PGA_Full3d, // Goes up and down sector portals at any linedef within the bounding box (this is a lot slower and should only be done if really needed.)
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};
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2016-02-19 09:39:40 +00:00
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enum
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{
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LOWER = 0x4000,
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UPPER = 0x8000,
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FLAT = 0xc000,
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};
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enum
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{
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MAX_STATIC = 4
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};
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2016-02-28 22:08:32 +00:00
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FPortalGroupArray(int collectionmethod = PGA_CheckPosition)
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2016-02-19 09:39:40 +00:00
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{
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2016-02-28 22:08:32 +00:00
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method = collectionmethod;
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varused = 0;
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inited = false;
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2016-02-19 09:39:40 +00:00
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}
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void Clear()
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{
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data.Clear();
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varused = 0;
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2016-02-19 13:08:41 +00:00
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inited = false;
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2016-02-19 09:39:40 +00:00
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}
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2017-03-08 14:20:00 +00:00
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void Add(uint32_t num)
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2016-02-19 09:39:40 +00:00
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{
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2017-03-08 14:20:00 +00:00
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if (varused < MAX_STATIC) entry[varused++] = (uint16_t)num;
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else data.Push((uint16_t)num);
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2016-02-19 09:39:40 +00:00
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}
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unsigned Size()
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{
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return varused + data.Size();
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}
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2017-03-08 14:20:00 +00:00
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uint32_t operator[](unsigned index)
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2016-02-19 09:39:40 +00:00
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{
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return index < MAX_STATIC ? entry[index] : data[index - MAX_STATIC];
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}
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2016-02-19 13:08:41 +00:00
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bool inited;
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2016-02-28 22:08:32 +00:00
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int method;
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2016-02-19 13:08:41 +00:00
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2016-02-19 09:39:40 +00:00
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private:
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2017-03-08 14:20:00 +00:00
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uint16_t entry[MAX_STATIC];
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uint8_t varused;
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TArray<uint16_t> data;
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2016-02-19 09:39:40 +00:00
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};
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2016-02-15 01:14:34 +00:00
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class FBlockLinesIterator
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{
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2016-02-19 09:39:40 +00:00
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friend class FMultiBlockLinesIterator;
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2019-01-29 02:26:22 +00:00
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FLevelLocals *Level;
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2016-02-15 01:14:34 +00:00
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int minx, maxx;
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int miny, maxy;
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int curx, cury;
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polyblock_t *polyLink;
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int polyIndex;
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int *list;
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void StartBlock(int x, int y);
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2019-01-29 02:26:22 +00:00
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FBlockLinesIterator(FLevelLocals *l) { Level = l; }
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2016-02-19 09:39:40 +00:00
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void init(const FBoundingBox &box);
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2016-02-15 01:14:34 +00:00
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public:
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2019-01-29 02:26:22 +00:00
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FBlockLinesIterator(FLevelLocals *Level, int minx, int miny, int maxx, int maxy, bool keepvalidcount = false);
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FBlockLinesIterator(FLevelLocals *Level, const FBoundingBox &box);
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2016-02-15 01:14:34 +00:00
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line_t *Next();
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void Reset() { StartBlock(minx, miny); }
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};
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2016-02-19 09:39:40 +00:00
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class FMultiBlockLinesIterator
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{
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2016-02-19 13:08:41 +00:00
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FPortalGroupArray &checklist;
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2016-03-31 14:52:25 +00:00
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DVector3 checkpoint;
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DVector2 offset;
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2016-03-10 13:22:18 +00:00
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sector_t *startsector;
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sector_t *cursector;
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2016-02-19 09:39:40 +00:00
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short basegroup;
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2016-02-19 13:08:41 +00:00
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short portalflags;
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2016-02-20 01:19:09 +00:00
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short index;
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2016-02-19 09:39:40 +00:00
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bool continueup;
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bool continuedown;
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FBlockLinesIterator blockIterator;
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2016-02-19 13:08:41 +00:00
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FBoundingBox bbox;
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2016-02-19 09:39:40 +00:00
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2016-03-31 14:52:25 +00:00
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bool GoUp(double x, double y);
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bool GoDown(double x, double y);
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2018-01-29 17:00:55 +00:00
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bool startIteratorForGroup(int group);
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2016-02-19 09:39:40 +00:00
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public:
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struct CheckResult
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{
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line_t *line;
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2016-03-26 22:19:38 +00:00
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DVector3 Position;
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2016-02-19 13:08:41 +00:00
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int portalflags;
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2016-02-19 09:39:40 +00:00
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};
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2016-03-31 14:52:25 +00:00
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FMultiBlockLinesIterator(FPortalGroupArray &check, AActor *origin, double checkradius = -1);
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2019-01-29 02:26:22 +00:00
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FMultiBlockLinesIterator(FPortalGroupArray &check, FLevelLocals *Level, double checkx, double checky, double checkz, double checkh, double checkradius, sector_t *newsec);
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2016-03-26 22:19:38 +00:00
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2016-02-19 09:39:40 +00:00
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bool Next(CheckResult *item);
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void Reset();
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// for stopping group traversal through portals. Only the calling code can decide whether this is needed so this needs to be set from the outside.
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void StopUp()
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{
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continueup = false;
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}
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void StopDown()
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{
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continuedown = false;
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}
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2016-02-19 13:08:41 +00:00
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const FBoundingBox &Box() const
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{
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return bbox;
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}
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2016-02-19 09:39:40 +00:00
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};
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2016-02-15 01:14:34 +00:00
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class FBlockThingsIterator
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{
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2019-01-29 02:26:22 +00:00
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FLevelLocals *Level;
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2016-02-15 01:14:34 +00:00
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int minx, maxx;
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int miny, maxy;
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int curx, cury;
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FBlockNode *block;
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int Buckets[32];
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struct HashEntry
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{
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AActor *Actor;
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int Next;
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};
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HashEntry FixedHash[10];
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int NumFixedHash;
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TArray<HashEntry> DynHash;
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HashEntry *GetHashEntry(int i) { return i < (int)countof(FixedHash) ? &FixedHash[i] : &DynHash[i - countof(FixedHash)]; }
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void StartBlock(int x, int y);
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void SwitchBlock(int x, int y);
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void ClearHash();
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// The following is only for use in the path traverser
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// and therefore declared private.
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2019-01-29 02:26:22 +00:00
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FBlockThingsIterator(FLevelLocals *);
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2016-02-15 01:14:34 +00:00
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friend class FPathTraverse;
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2016-02-20 19:36:45 +00:00
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friend class FMultiBlockThingsIterator;
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2016-02-15 01:14:34 +00:00
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public:
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2019-01-29 02:26:22 +00:00
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FBlockThingsIterator(FLevelLocals *Level, int minx, int miny, int maxx, int maxy);
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2019-02-04 12:05:27 +00:00
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FBlockThingsIterator(FLevelLocals *l, const FBoundingBox &box)
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2016-02-20 19:36:45 +00:00
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{
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2019-02-04 12:05:27 +00:00
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Level = l;
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2016-02-20 19:36:45 +00:00
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init(box);
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}
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void init(const FBoundingBox &box);
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2016-02-15 01:14:34 +00:00
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AActor *Next(bool centeronly = false);
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void Reset() { StartBlock(minx, miny); }
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};
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2016-02-20 19:36:45 +00:00
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class FMultiBlockThingsIterator
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{
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FPortalGroupArray &checklist;
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2016-03-31 14:52:25 +00:00
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DVector3 checkpoint;
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2016-02-20 19:36:45 +00:00
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short basegroup;
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short portalflags;
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short index;
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FBlockThingsIterator blockIterator;
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FBoundingBox bbox;
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void startIteratorForGroup(int group);
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2017-01-29 17:23:09 +00:00
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protected:
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2019-01-29 02:26:22 +00:00
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FMultiBlockThingsIterator(FPortalGroupArray &check, FLevelLocals *Level) : checklist(check), blockIterator(Level) {}
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2016-02-20 19:36:45 +00:00
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public:
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struct CheckResult
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{
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AActor *thing;
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2016-03-21 21:20:10 +00:00
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DVector3 Position;
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2016-02-20 19:36:45 +00:00
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int portalflags;
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};
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2016-03-31 14:52:25 +00:00
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FMultiBlockThingsIterator(FPortalGroupArray &check, AActor *origin, double checkradius = -1, bool ignorerestricted = false);
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2019-01-29 02:26:22 +00:00
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FMultiBlockThingsIterator(FPortalGroupArray &check, FLevelLocals *Level, double checkx, double checky, double checkz, double checkh, double checkradius, bool ignorerestricted, sector_t *newsec);
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2016-02-20 19:36:45 +00:00
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bool Next(CheckResult *item);
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void Reset();
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const FBoundingBox &Box() const
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{
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return bbox;
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}
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};
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2016-02-15 01:14:34 +00:00
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class FPathTraverse
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{
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2016-02-25 08:54:09 +00:00
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protected:
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2016-02-15 01:14:34 +00:00
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static TArray<intercept_t> intercepts;
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2019-01-24 23:30:55 +00:00
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FLevelLocals *Level;
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2016-03-31 14:52:25 +00:00
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divline_t trace;
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double Startfrac;
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2016-02-15 01:14:34 +00:00
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unsigned int intercept_index;
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unsigned int intercept_count;
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unsigned int count;
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2016-02-25 08:54:09 +00:00
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virtual void AddLineIntercepts(int bx, int by);
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virtual void AddThingIntercepts(int bx, int by, FBlockThingsIterator &it, bool compatible);
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2019-01-24 23:30:55 +00:00
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FPathTraverse(FLevelLocals *l)
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{
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Level = l;
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}
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2016-02-15 01:14:34 +00:00
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public:
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intercept_t *Next();
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2019-01-24 23:30:55 +00:00
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FPathTraverse(FLevelLocals *l, double x1, double y1, double x2, double y2, int flags, double startfrac = 0)
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2016-03-25 23:34:56 +00:00
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{
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2019-01-24 23:30:55 +00:00
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Level = l;
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2016-03-31 14:52:25 +00:00
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init(x1, y1, x2, y2, flags, startfrac);
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2016-03-25 23:34:56 +00:00
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}
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2016-03-31 14:52:25 +00:00
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void init(double x1, double y1, double x2, double y2, int flags, double startfrac = 0);
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2019-01-29 15:06:17 +00:00
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int PortalRelocate(intercept_t *in, int flags, DVector3 *optpos = nullptr);
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2016-04-20 17:20:11 +00:00
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void PortalRelocate(const DVector2 &disp, int flags, double hitfrac);
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2016-02-25 08:54:09 +00:00
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virtual ~FPathTraverse();
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2016-03-31 14:52:25 +00:00
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const divline_t &Trace() const { return trace; }
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2016-03-02 23:58:25 +00:00
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2016-03-25 23:34:56 +00:00
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inline DVector2 InterceptPoint(const intercept_t *in)
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{
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return
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{
|
2016-03-31 14:52:25 +00:00
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trace.x + trace.dx * in->frac,
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trace.y + trace.dy * in->frac
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2016-03-25 23:34:56 +00:00
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};
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}
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2016-03-02 23:58:25 +00:00
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2016-02-15 01:14:34 +00:00
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};
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//
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// P_MAPUTL
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//
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typedef bool(*traverser_t) (intercept_t *in);
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|
2016-03-31 14:52:25 +00:00
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int P_AproxDistance (int dx, int dy);
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2016-03-26 22:19:38 +00:00
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double P_InterceptVector(const divline_t *v2, const divline_t *v1);
|
2016-02-15 01:14:34 +00:00
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#define PT_ADDLINES 1
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#define PT_ADDTHINGS 2
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#define PT_COMPATIBLE 4
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#define PT_DELTA 8 // x2,y2 is passed as a delta, not as an endpoint
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2019-01-29 02:26:22 +00:00
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#endif
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