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collide.h
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C/C++ Source or Header
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1992-09-24
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1KB
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36 lines
#ifndef GRAPHICS_COLLIDE_H
#define GRAPHICS_COLLIDE_H
/*
** $VER: collide.h 37.0 (07.01.91)
** Includes Release 39.108
**
** include file for collision detection and control
**
** (C) Copyright 1985-1992 Commodore-Amiga, Inc.
** All Rights Reserved
*/
/* These bit descriptors are used by the GEL collide routines.
* These bits are set in the hitMask and meMask variables of
* a GEL to describe whether or not these types of collisions
* can affect the GEL. BNDRY_HIT is described further below;
* this bit is permanently assigned as the boundary-hit flag.
* The other bit GEL_HIT is meant only as a default to cover
* any GEL hitting any other; the user may redefine this bit.
*/
#define BORDERHIT 0
/* These bit descriptors are used by the GEL boundry hit routines.
* When the user's boundry-hit routine is called (via the argument
* set by a call to SetCollision) the first argument passed to
* the user's routine is the address of the GEL involved in the
* boundry-hit, and the second argument has the appropriate bit(s)
* set to describe which boundry was surpassed
*/
#define TOPHIT 1
#define BOTTOMHIT 2
#define LEFTHIT 4
#define RIGHTHIT 8
#endif /* GRAPHICS_COLLIDE_H */