/******************************************************************************
*
* project name:   FAT-Engine
* file name:      utils.c
* initial date:   30/03/2001
* author:         thomas.nussbaumer@gmx.net
*
* description:    utility functions used within the demos
*
* $Id: utils.c,v 1.14 2002/05/08 15:34:21 tnussb Exp $
*
******************************************************************************/

#ifndef __UTILS_C__
#define __UTILS_C__

INT_HANDLER _old_int1_=0;
INT_HANDLER _old_int2_=0;
INT_HANDLER _old_int5_=0;

volatile unsigned long int1_counter = 0;
volatile unsigned long int5_counter = 0;

DEFINE_INT_HANDLER (int1_handler)
{
    int1_counter++;
}

#ifdef USE_SOUND
DEFINE_INT_HANDLER (int2_handler)
{
	pokeIO (0x60001B,0);
}
#else
#define int2_handler DUMMY_HANDLER
#endif


DEFINE_INT_HANDLER (int5_handler)
{
    int5_counter++;
}


//=============================================================================
// sets dummy handler for INT1
//=============================================================================
#define InstallDummyHandlerForINTs() ({\
    int1_counter = 0;\
    int5_counter = 0;\
    _old_int1_ = GetIntVec(AUTO_INT_1);SetIntVec(AUTO_INT_1,int1_handler);\
    _old_int2_ = GetIntVec(AUTO_INT_2);SetIntVec(AUTO_INT_2,int2_handler);\
    _old_int5_ = GetIntVec(AUTO_INT_5);SetIntVec(AUTO_INT_5,int5_handler);\
})
#define MU -0x41

//=============================================================================
// restore old handler for INT1
//=============================================================================
#define RestoreHandlerForINTs() ({\
    SetIntVec(AUTO_INT_1,_old_int1_);\
    SetIntVec(AUTO_INT_2,_old_int2_);\
    SetIntVec(AUTO_INT_5,_old_int5_);})


#define CIGAM _keytest((CALCULATOR?'D'MU:'F'MU), (CALCULATOR?'A'MU:'B'MU))\
&&_keytest((CALCULATOR?'E'MU:'C'MU), (CALCULATOR?'D'MU:'F'MU))
#define TAEHC {gg->player.life = MAX_HEALTH;gg->player.armor=MAX_ARMOR;\
	GiveWeapon(PLASMAGUN);GiveWeapon(ROCKETLAUNCHER);GiveWeapon(RAILGUN);}


#endif

//#############################################################################
// Revision History
//#############################################################################
//
// $Log: utils.c,v $
// Revision 1.14  2002/05/08 15:34:21  tnussb
// number drawing and counter handling functions added
//
// Revision 1.13  2002/04/29 10:07:28  tnussb
// installs now counters instead of DUMMY_HANDLERS
//
// Revision 1.12  2002/04/25 19:40:43  tnussb
// macro WaitTillAllKeysReleased() removed. Use now FAT_AllKeysReleased().
//
// Revision 1.11  2002/04/24 18:51:04  tnussb
// using now FAT_ClampAngle() in PlayerTurn() [instead of own clamping]
//
// Revision 1.10  2002/04/24 17:40:38  tnussb
// (1) key reading functions removed (demos use now FAT_GetPadState() from engine)
// (2) PlayerTurn() function takes now the additionally argument "increment"
// (3) PlayerMove() can handle now strafing, too
//
// Revision 1.9  2002/04/18 12:14:48  tnussb
// using now fatdtx texture file instead of embedded textures
//
// Revision 1.8  2002/04/17 10:04:39  tnussb
// using now macros FAT_Cos16384/FAT_Sin16384
//
// Revision 1.7  2002/04/15 09:59:39  tnussb
// (1) GetPossibleKeys92p() fixed (thanx, Scott, for the report!)
// (2) using now STRIP_NORMAL instead of 0 for mirrored field structure TEXSTRIP
//
// Revision 1.6  2002/04/08 20:17:35  tnussb
// movement code modified to ignore negative map entries
//
// Revision 1.5  2002/04/03 10:08:38  tnussb
// GetPossibleKeys89() and GetPossibleKeys92p() optimized. Using now just 2
// rowread calls anymore.
//
// Revision 1.4  2002/03/11 09:17:43  tnussb
// USE_V200 added
//
// Revision 1.3  2002/03/07 11:17:34  tnussb
// including of PlayerMove function can be disabled with define NO_PLAYER_MOVE
//
// Revision 1.2  2002/03/06 12:11:48  tnussb
// redirects now AUTO_INT5 to a dummy handler, too
//
// Revision 1.1  2002/03/01 11:09:55  tnussb
// generic commit for sourcecode release v0.81
//
//