1 /* $Id: physics.h,v 1.3 2004-08-28 23:17:45 schaffner Exp $ */
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17 * Headers for physics functions and data
31 //#define FL_REVERSE 3
33 // these global vars are set after a call to do_physics_sim(). Ugly, I know.
34 // list of segments went through
35 extern int phys_seglist[MAX_FVI_SEGS], n_phys_segs;
37 // Read contrls and set physics vars
38 void read_flying_controls(object *obj);
40 // Simulate a physics object for this frame
41 void do_physics_sim(object *obj);
43 // tell us what the given object will do (as far as hiting walls) in
44 // the given time (in seconds) t. Igores acceleration (sorry)
45 // if check_objects is set, check with objects, else just with walls
46 // returns fate, fills in hit time. If fate==HIT_NONE, hit_time undefined
47 // Stuff hit_info with fvi data as set by find_vector_intersection.
48 // for fvi_flags, refer to fvi.h for the fvi query flags
49 int physics_lookahead(object *obj, fix t, int fvi_flags, fix *hit_time, fvi_info *hit_info);
51 // Applies an instantaneous force on an object, resulting in an instantaneous
52 // change in velocity.
53 void phys_apply_force(object *obj, vms_vector *force_vec);
54 void phys_apply_rot(object *obj, vms_vector *force_vec);
56 // this routine will set the thrust for an object to a value that will
57 // (hopefully) maintain the object's current velocity
58 void set_thrust_from_velocity(object *obj);
60 #endif /* _PHYSICS_H */