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  1. #ifndef _RAYCAST_H_
  2. #define _RAYCAST_H_
  3.  
  4. #include "dr_types.h"
  5.  
  6. extern br_matrix34 gPick_model_to_view__raycast; // suffix added to avoid duplicate symbol
  7. extern int gBelow_face_index;
  8. extern br_scalar gCurrent_y;
  9. extern int gAbove_face_index;
  10. extern br_model* gAbove_model;
  11. extern br_model* gBelow_model;
  12. extern br_scalar gHighest_y_below;
  13. extern br_actor* gY_picking_camera;
  14. extern br_scalar gLowest_y_above;
  15.  
  16. // Added, probably can be replaced with NULL
  17. extern br_model* model_unk1;
  18. extern br_material* material_unk1;
  19.  
  20. int DRActorToRoot(br_actor* a, br_actor* world, br_matrix34* m);
  21.  
  22. void InitRayCasting(void);
  23.  
  24. // Suffix added to avoid duplicate symbol
  25. int BadDiv__raycast(br_scalar a, br_scalar b);
  26.  
  27. // Suffix added to avoid duplicate symbol
  28. void DRVector2AccumulateScale__raycast(br_vector2* a, br_vector2* b, br_scalar s);
  29.  
  30. // Suffix added to avoid duplicate symbol
  31. int PickBoundsTestRay__raycast(br_bounds* b, br_vector3* rp, br_vector3* rd, br_scalar t_near, br_scalar t_far, br_scalar* new_t_near, br_scalar* new_t_far);
  32.  
  33. int ActorPick2D(br_actor* ap, br_model* model, br_material* material, dr_pick2d_cbfn* callback, void* arg);
  34.  
  35. int DRScenePick2DXY(br_actor* world, br_actor* camera, br_pixelmap* viewport, int pick_x, int pick_y, dr_pick2d_cbfn* callback, void* arg);
  36.  
  37. int DRScenePick2D(br_actor* world, br_actor* camera, dr_pick2d_cbfn* callback, void* arg);
  38.  
  39. int DRModelPick2D__raycast(br_model* model, br_material* material, br_vector3* ray_pos, br_vector3* ray_dir, br_scalar t_near, br_scalar t_far, dr_modelpick2d_cbfn* callback, void* arg);
  40.  
  41. // Suffix added to avoid duplicate symbol
  42. int FindHighestPolyCallBack__raycast(br_model* pModel, br_material* pMaterial, br_vector3* pRay_pos, br_vector3* pRay_dir, br_scalar pT, int pF, int pE, int pV, br_vector3* pPoint, br_vector2* pMap, void* pArg);
  43.  
  44. // Suffix added to avoid duplicate symbol
  45. int FindHighestCallBack__raycast(br_actor* pActor, br_model* pModel, br_material* pMaterial, br_vector3* pRay_pos, br_vector3* pRay_dir, br_scalar pT_near, br_scalar pT_far, void* pArg);
  46.  
  47. void FindBestY(br_vector3* pPosition, br_actor* gWorld, br_scalar pStarting_height, br_scalar* pNearest_y_above, br_scalar* pNearest_y_below, br_model** pNearest_above_model, br_model** pNearest_below_model, int* pNearest_above_face_index, int* pNearest_below_face_index);
  48.  
  49. int FindYVerticallyBelowPolyCallBack(br_model* pModel, br_material* pMaterial, br_vector3* pRay_pos, br_vector3* pRay_dir, br_scalar pT, int pF, int pE, int pV, br_vector3* pPoint, br_vector2* pMap, void* pArg);
  50.  
  51. int FindYVerticallyBelowCallBack(br_actor* pActor, br_model* pModel, br_material* pMaterial, br_vector3* pRay_pos, br_vector3* pRay_dir, br_scalar pT_near, br_scalar pT_far, void* pArg);
  52.  
  53. br_scalar FindYVerticallyBelow(br_vector3* pPosition);
  54.  
  55. br_scalar FindYVerticallyBelow2(br_vector3* pCast_point);
  56.  
  57. #endif
  58.