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Amiga ACS 1998 #6
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physics.h
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1998-06-08
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/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
* $Source: f:/miner/source/main/rcs/physics.h $
* $Revision: 2.0 $
* $Author: john $
* $Date: 1995/02/27 11:33:06 $
*
* Headers for physics functions and data
*
* $Log: physics.h $
* Revision 2.0 1995/02/27 11:33:06 john
* New version 2.0, which has no anonymous unions, builds with
* Watcom 10.0, and doesn't require parsing BITMAPS.TBL.
*
* Revision 1.29 1995/02/06 19:47:18 matt
* New function (untested), set_thrust_from_velocity()
*
* Revision 1.28 1994/12/04 22:14:20 mike
* apply instantaneous rotation to an object due to a force blow.
*
* Revision 1.27 1994/08/01 13:29:42 matt
* Made fvi() check holes in transparent walls, and changed fvi() calling
* parms to take all input data in query structure.
*
* Revision 1.26 1994/07/28 12:35:22 matt
* Added prototype
*
* Revision 1.25 1994/07/13 21:48:05 matt
* FVI() and physics now keep lists of segments passed through which the
* trigger code uses.
*
* Revision 1.24 1994/06/30 19:01:55 matt
* Moved flying controls code from physics.c to controls.c
*
* Revision 1.23 1994/06/16 14:14:20 mike
* Change physics_lookahead to return hit_info.
*
* Revision 1.22 1994/06/09 09:58:43 matt
* Moved find_vector_intersection() from physics.c to new file fvi.c
*
* Revision 1.21 1994/05/20 16:11:07 matt
* Added new parm, ignore_obj, to find_vector_intersection()
*
* Revision 1.20 1994/05/20 15:16:58 matt
* Added new fvi return type; took out some troublesome (and troubling) asserts
*
*
*
*/
#ifndef _PHYSICS_H
#define _PHYSICS_H
#include "vecmat.h"
#include "fvi.h"
//#define FL_NORMAL 0
//#define FL_TURBO 1
//#define FL_HOVER 2
//#define FL_REVERSE 3
//these global vars are set after a call to do_physics_sim(). Ugly, I know.
//list of segments went through
extern int phys_seglist[MAX_FVI_SEGS],n_phys_segs;
// Read contrls and set physics vars
void read_flying_controls( object * obj );
//Simulate a physics object for this frame
do_physics_sim(object *obj);
//tell us what the given object will do (as far as hiting walls) in
//the given time (in seconds) t. Igores acceleration (sorry)
//if check_objects is set, check with objects, else just with walls
//returns fate, fills in hit time. If fate==HIT_NONE, hit_time undefined
// Stuff hit_info with fvi data as set by find_vector_intersection.
//for fvi_flags, refer to fvi.h for the fvi query flags
int physics_lookahead(object *obj,fix t,int fvi_flags,fix *hit_time, fvi_info *hit_info);
//Applies an instantaneous force on an object, resulting in an instantaneous
//change in velocity.
phys_apply_force(object *obj,vms_vector *force_vec);
phys_apply_rot(object *obj,vms_vector *force_vec);
//this routine will set the thrust for an object to a value that will
//(hopefully) maintain the object's current velocity
set_thrust_from_velocity(object *obj);
#endif