mirror of https://github.com/ZDoom/zdbsp.git
77 lines
1.5 KiB
Plaintext
77 lines
1.5 KiB
Plaintext
#include "zdbsp.h"
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#include "tarray.h"
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#include "doomdata.h"
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class FRejectBuilder
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{
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struct FPoint
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{
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int x, y;
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};
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struct BBox
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{
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int Bounds[4];
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const int &operator[] (int index) const
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{
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return Bounds[index];
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}
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int &operator() (int index)
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{
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return Bounds[index];
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}
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void AddPt (int x, int y)
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{
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if (x < Bounds[LEFT]) Bounds[LEFT] = x;
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if (x > Bounds[RIGHT]) Bounds[RIGHT] = x;
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if (y < Bounds[BOTTOM]) Bounds[BOTTOM] = y;
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if (y > Bounds[TOP]) Bounds[TOP] = y;
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}
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void AddPt (WideVertex vert)
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{
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AddPt (vert.x >> FRACBITS, vert.y >> FRACBITS);
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}
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void AddPt (FPoint pt)
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{
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AddPt (pt.x, pt.y);
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}
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};
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struct FBlockChain
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{
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FBlockChain() : Points(0) {}
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~FBlockChain() { if (Points) delete[] Points; }
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BBox Bounds;
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FPoint *Points;
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int NumPoints;
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FBlockChain *Next;
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};
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enum { LEFT, TOP, RIGHT, BOTTOM };
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friend struct BBox;
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public:
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FRejectBuilder (FLevel &level);
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~FRejectBuilder ();
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BYTE *GetReject ();
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private:
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void FindSectorBounds ();
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void FindBlockChains ();
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void HullSides (const BBox &box1, const BBox &box2, FPoint sides[4]);
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bool ChainBlocks (const FBlockChain *chain, const BBox *hullBounds, const FPoint *hullPts);
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void BuildReject ();
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inline int PointOnSide (const FPoint *pt, const FPoint &lpt1, const FPoint &lpt2);
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BBox *SectorBounds;
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BYTE *Reject;
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FLevel &Level;
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int RejectSize;
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FBlockChain *BlockChains;
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}; |