Below is the full text to region.h from the source code of NetHack 3.4.0. To link to a particular line, write [[NetHack 3.4.0/region.h#line123]], for example.
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1. /* SCCS Id: @(#)region.h 3.4 1996/06/17 */ 2. /* Copyright (c) 1996 by Jean-Christophe Collet */ 3. /* NetHack may be freely redistributed. See license for details. */ 4. 5. #ifndef REGION_H 6. #define REGION_H 7. 8. /* generic callback function */ 9. 10. typedef boolean FDECL((*callback_proc), (genericptr_t, genericptr_t)); 11. 12. typedef struct { 13. NhRect bounding_box; /* Bounding box of the region */ 14. NhRect *rects; /* Rectangles composing the region */ 15. short nrects; /* Number of rectangles */ 16. boolean attach_2_u; /* Region attached to player ? */ 17. unsigned int attach_2_m; /* Region attached to monster ? */ 18. /*struct obj *attach_2_o;*/ /* Region attached to object ? UNUSED YET */ 19. const char* enter_msg; /* Message when entering */ 20. const char* leave_msg; /* Message when leaving */ 21. short ttl; /* Time to live. -1 is forever */ 22. short expire_f; /* Function to call when region's ttl expire */ 23. short can_enter_f; /* Function to call to check wether the player 24. can, or can not, enter the region */ 25. short enter_f; /* Function to call when the player enters*/ 26. short can_leave_f; /* Function to call to check wether the player 27. can, or can not, leave the region */ 28. short leave_f; /* Function to call when the player leaves */ 29. short inside_f; /* Function to call every turn if player's 30. inside */ 31. boolean player_inside; /* Is the player inside this region */ 32. unsigned int* monsters; /* Monsters currently inside this region */ 33. short n_monst; /* Number of monsters inside this region */ 34. short max_monst; /* Maximum number of monsters that can be 35. listed without having to grow the array */ 36. #define MONST_INC 5 37. 38. /* Should probably do the same thing about objects */ 39. 40. boolean visible; /* Is the region visible ? */ 41. int glyph; /* Which glyph to use if visible */ 42. genericptr_t arg; /* Optional user argument (Ex: strength of 43. force field, damage of a fire zone, ...*/ 44. } NhRegion; 45. 46. #endif /* REGION_H */