#include <exec/types.h>

/****************************************************************/
USHORT amptopot(amp)

/* Convert an amplitude to an integer to put in the proportional */
/* gadget's VertPot value.                                       */

LONG amp;
{
	USHORT temp;
	
	temp = (127-abs(amp))<<9;
	return(temp);
}

/****************************************************************/
LONG pottoamp(pot,potsign)

/* Converts a proportional gadget's VertPot value to an amplitude  */

USHORT pot;
SHORT potsign;
{
	LONG temp;
	temp = (127-(pot>>9))*potsign;
	return(temp);
}


/************************************************************/
LONG randamp()

/*  Picks a random amplitude (for the game mode)  */

{
	LONG temp;
	
	temp=(rand()&0xFF)-127;
	if (temp==128) temp=127;
	return(temp);
}