mirror of https://github.com/ZDoom/zdbsp.git
99 lines
2.6 KiB
Plaintext
99 lines
2.6 KiB
Plaintext
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#include "doomdata.h"
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#include "workdata.h"
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#include "tarray.h"
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class FNodeBuilder
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{
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struct FPrivSeg
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{
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int v1, v2;
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int sidedef;
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int linedef;
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int frontsector;
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int backsector;
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int next;
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int nextforvert;
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int loopnum; // loop number for split avoidance (0 means splitting is okay)
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angle_t angle;
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fixed_t offset;
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int planenum;
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FPrivSeg *hashnext;
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};
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struct FPrivVert
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{
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fixed_t x, y;
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WORD segs; // segs that use this vertex as v1
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bool operator== (const FPrivVert &other)
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{
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return x == other.x && y == other.y;
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}
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};
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union USegPtr
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{
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int SegNum;
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FPrivSeg *SegPtr;
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};
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public:
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struct FPolyStart
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{
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int polynum;
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fixed_t x, y;
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};
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FNodeBuilder (FLevel &level,
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TArray<FPolyStart> &polyspots, TArray<FPolyStart> &anchors,
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const char *name);
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void GetVertices (WideVertex *&verts, int &count);
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void GetSegs (MapSeg *&segs, int &count);
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void GetNodes (MapNode *&nodes, int &count);
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void GetSubsectors (MapSubsector *&ssecs, int &count);
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private:
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TArray<node_t> Nodes;
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TArray<MapSubsector> Subsectors;
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TArray<FPrivSeg> Segs;
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TArray<FPrivVert> Vertices;
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TArray<USegPtr> SegList;
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TArray<BYTE> PlaneChecked;
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TArray<int> Touched; // Loops a splitter touches on a vertex
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TArray<int> Colinear; // Loops with edges colinear to a splitter
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FLevel &Level;
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// Progress meter stuff
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int SegsStuffed;
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const char *MapName;
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void FindUsedVertices (WideVertex *vertices, int max);
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void BuildTree ();
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void MakeSegsFromSides ();
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void GroupSegPlanes ();
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void FindPolyContainers (TArray<FPolyStart> &spots, TArray<FPolyStart> &anchors);
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bool GetPolyExtents (int polynum, fixed_t bbox[4]);
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int MarkLoop (int firstseg, int loopnum);
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void AddSegToBBox (fixed_t bbox[4], const FPrivSeg *seg);
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int CreateNode (WORD set, fixed_t bbox[4]);
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int CreateSubsector (WORD set, fixed_t bbox[4]);
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bool CheckSubsector (WORD set, node_t &node, int setsize);
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int SelectSplitter (WORD set, node_t &node, int step, bool nosplit);
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void SplitSegs (WORD set, node_t &node, WORD &outset0, WORD &outset1);
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int Heuristic (node_t &node, WORD set, bool honorNoSplit);
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int ClassifyLine (node_t &node, const FPrivSeg *seg, int &sidev1, int &sidev2);
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int CountSegs (WORD set) const;
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static int SortSegs (const void *a, const void *b);
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// < 0 : in front of line
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// == 0 : on line
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// > 0 : behind line
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inline int PointOnSide (int x, int y, int x1, int y1, int dx, int dy);
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fixed_t InterceptVector (const node_t &splitter, const FPrivSeg &seg);
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void PrintSet (int l, WORD set);
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};
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