// phmap1.h  MR May 2001
//
// Pheromone Map, for quick determining of distance to
// nearest pheromone-emitting entity on/in a chessboard world.
// 
// See comments / usage guidelines / documentation in file 'phmap1.c'.
#ifndef _PHMAP1_H_
#define _PHMAP1_H_
#include <stdio.h>
void phmap_init(
	int * pmap,
	int xsize,
	int ysize );
void phmap_enteremitter(
	int * pmap,
	int xsize,
	int ysize,
	int ix,
	int iy );
void phmap_calc(
	int * pmap,
	int xsize,
	int ysize );
int phmap_getdist(
	const int * pmap,
	int xsize,
	int ysize,
	int ix,
	int iy );
void phmap_fprint(  // (For testing purposes)
	FILE * fp,
	const int * pmap,
	int xsize,
	int ysize );
#endif // _PHMAP1_H_