| 19 |
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* |
| 20 |
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* < -1: it is an index to a set of objects |
| 21 |
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*/ |
| 22 |
+ |
#include "object.h" |
| 23 |
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|
| 24 |
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#define QUADTREE int |
| 25 |
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|
| 26 |
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#define EMPTY (-1) |
| 27 |
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|
| 28 |
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#define QT_IS_EMPTY(qt) ((qt) == EMPTY) |
| 29 |
< |
#define QT_IS_LEAF(qt) ((qt) < EMPTY) |
| 30 |
< |
#define QT_IS_TREE(qt) ((qt) > EMPTY) |
| 29 |
> |
#define QT_IS_LEAF(qt) ((qt) < EMPTY) |
| 30 |
> |
#define QT_IS_TREE(qt) ((qt) > EMPTY) |
| 31 |
|
|
| 32 |
< |
#define QT_INDEX(qt) (-(qt)-2) /* quadtree node from set */ |
| 33 |
< |
#define QT_SET_INDEX(i) (-((i)+2)) /* object set from node */ |
| 34 |
< |
#define QT_BLOCK(qt) ((qt)>>8) /* quadtree block index */ |
| 35 |
< |
#define QT_BLOCK_INDEX(qt) (((qt)&0377)<<2) /* quadtree index in block */ |
| 32 |
> |
#define QT_INDEX(qt) (-(qt)-2) /* quadtree node from set */ |
| 33 |
> |
#define QT_SET_INDEX(i) (-((i)+2)) /* object set from node */ |
| 34 |
> |
#define QT_BLOCK_SIZE 1024 /* quadtrees in block */ |
| 35 |
> |
#define QT_BLOCK(qt) ((qt)>>10) /* quadtree block index */ |
| 36 |
> |
#define QT_BLOCK_INDEX(qt) (((qt)&0x3ff)<<2) /* quadtree index in block */ |
| 37 |
|
|
| 38 |
+ |
|
| 39 |
|
#ifndef QT_MAX_BLK |
| 40 |
|
#ifdef BIGMEM |
| 41 |
< |
#define QT_MAX_BLK 65535 /* maximum quadtree block */ |
| 41 |
> |
#define QT_MAX_BLK 16383 /* maximum quadtree block */ |
| 42 |
|
#else |
| 43 |
< |
#define QT_MAX_BLK 8191 /* maximum quadtree block */ |
| 43 |
> |
#define QT_MAX_BLK 2047 /* maximum quadtree block */ |
| 44 |
|
#endif |
| 45 |
|
#endif |
| 46 |
|
|
| 47 |
|
|
| 45 |
– |
|
| 48 |
|
#define QT_NTH_CHILD(qt,br) (quad_block[QT_BLOCK(qt)][QT_BLOCK_INDEX(qt)+br]) |
| 49 |
< |
#define QT_NTH_CHILD_PTR(qt,br) \ |
| 50 |
< |
(&(quad_block[QT_BLOCK(qt)][QT_BLOCK_INDEX(qt)+br])) |
| 51 |
< |
#define QT_CLEAR_CHILDREN(qt) (QT_NTH_CHILD(qt,0)=EMPTY, \ |
| 50 |
< |
QT_NTH_CHILD(qt,1)=EMPTY,QT_NTH_CHILD(qt,2)=EMPTY,QT_NTH_CHILD(qt,3)=EMPTY) |
| 49 |
> |
#define QT_NTH_CHILD_PTR(qt,br) (&QT_NTH_CHILD(qt,br)) |
| 50 |
> |
#define QT_CLEAR_CHILDREN(qt) (QT_NTH_CHILD(qt,0)=QT_NTH_CHILD(qt,1)= \ |
| 51 |
> |
QT_NTH_CHILD(qt,2)=QT_NTH_CHILD(qt,3)=EMPTY) |
| 52 |
|
|
| 53 |
|
|
| 54 |
< |
#if 0 |
| 55 |
< |
#define QT_EMPTY 0 |
| 56 |
< |
#define QT_FULL 1 |
| 57 |
< |
#define QT_TREE 2 |
| 58 |
< |
#endif |
| 54 |
> |
/* QUADTREE NODE FLAGS */ |
| 55 |
> |
#define QT_OFFSET(qt) ((qt)>>5) |
| 56 |
> |
#define QT_F_BIT(qt) ((qt)&0x1f) |
| 57 |
> |
#define QT_F_OP(f,qt,op) ((f)[QT_OFFSET(qt)] op (0x1<<QT_F_BIT(qt))) |
| 58 |
> |
#define QT_IS_FLAG(qt) QT_F_OP(quad_flag,qt,&) |
| 59 |
> |
#define QT_SET_FLAG(qt) QT_F_OP(quad_flag,qt,|=) |
| 60 |
> |
#define QT_CLR_FLAG(qt) QT_F_OP(quad_flag,qt,|=~) |
| 61 |
|
|
| 62 |
|
|
| 60 |
– |
|
| 63 |
|
/* OBJECT SET CODE */ |
| 64 |
|
#define QT_SET_CNT(s) ((s)[0]) |
| 65 |
|
#define QT_SET_NTH_ELEM(s,n) ((s)[(n)]) |
| 69 |
|
#define QT_SET_PTR(s) (&((s)[1])) |
| 70 |
|
|
| 71 |
|
|
| 72 |
< |
#define QT_MAX_SET MAXSET |
| 73 |
< |
#define MAXCSET MAXSET*2 |
| 72 |
> |
#define QT_MAXSET 255 |
| 73 |
> |
#define MAXCSET 2*QT_MAXSET |
| 74 |
> |
#define QT_MAXCSET MAXCSET |
| 75 |
|
#ifndef QT_SET_THRESHOLD |
| 76 |
|
#define QT_SET_THRESHOLD 30 |
| 77 |
|
#endif |
| 80 |
|
#define QT_MAX_LEVELS 17 |
| 81 |
|
#endif |
| 82 |
|
|
| 83 |
< |
#define QT_BLOCK_SIZE 256 |
| 83 |
> |
#define QT_HIT -2 |
| 84 |
> |
#define QT_DONE -4 |
| 85 |
> |
#define QT_MODIFIED -8 |
| 86 |
|
|
| 87 |
+ |
#define QT_FILL_THRESHOLD 3 |
| 88 |
+ |
#define QT_EXPAND 8 |
| 89 |
+ |
#define QT_COMPRESS 16 |
| 90 |
+ |
|
| 91 |
+ |
#define QT_FLAG_FILL_TRI(f) (((f)&0x7) == QT_FILL_THRESHOLD) |
| 92 |
+ |
#define QT_FLAG_UPDATE(f) ((f)& (QT_EXPAND | QT_COMPRESS)) |
| 93 |
+ |
|
| 94 |
|
extern QUADTREE qtnewleaf(), qtaddelem(), qtdelelem(); |
| 95 |
|
|
| 96 |
|
extern QUADTREE *quad_block[QT_MAX_BLK]; /* quadtree blocks */ |
| 97 |
+ |
extern int4 *quad_flag; /* zeroeth quadtree flag */ |
| 98 |
+ |
|
| 99 |
+ |
extern OBJECT **qtsettab; /* quadtree leaf node table */ |
| 100 |
+ |
extern QUADTREE qtnumsets; /* number of used set indices */ |
| 101 |
+ |
|
| 102 |
+ |
#ifdef DEBUG |
| 103 |
+ |
extern OBJECT *qtqueryset(); |
| 104 |
+ |
#else |
| 105 |
+ |
#define qtqueryset(qt) (qtsettab[QT_SET_INDEX(qt)]) |
| 106 |
+ |
#endif |
| 107 |
+ |
|
| 108 |
+ |
#define qtinset(qt,id) inset(qtqueryset(qt),id) |
| 109 |
+ |
#define qtgetset(os,qt) setcopy(os,qtqueryset(qt)) |
| 110 |
+ |
|
| 111 |
+ |
extern QUADTREE *qtRoot_point_locate(); |
