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/*
* Atom-4 AI player
* Header file
*
* $Id: ai.h,v 1.18 2003/04/11 04:37:47 hsteoh Exp hsteoh $
*/
#ifndef AI_H
#define AI_H
//#define DEBUG_AI
#ifdef PROFILE
#define PROFILE_AI
#endif
#ifdef DEBUG_AI
#include <stdio.h>
#endif //DEBUG_AI
// TESTING ONLY!
#include <sys/types.h>
#include <unistd.h>
#include "board4.h"
#include "event.h"
#include "game.h"
class atom4ai : public atom4local {
int playernum;
int search_depth; // game tree search depth
#ifdef DEBUG_AI
FILE *logfile;
void reopen_log();
#endif //DEBUG_AI
struct move_t { int x, y; };
struct hdelta { // heuristic function accumulator
int changes, pcreated, pdestroyed;
inline hdelta operator-() {
hdelta neg = { -changes, -pdestroyed, -pcreated };
return neg;
}
};
//TESTING ONLY!!!!!!!!
eventloop *loop;
pid_t child;
int childpipe; // pipe to child process
class childmon : public eventhandler {
atom4ai *ai;
public:
childmon(atom4ai *context) : ai(context) {}
void read_ready(eventloop *src, int fd);
void write_ready(eventloop *src, int fd);
} babysitter;
// FIXME: THIS SHOULD BE MOVED TO PARENT CLASS
static color4 nextcolor(color4 c) { return c.rotr().complement(); }
void find_legal_moves(board4 &board, elist<move_t> &moves);
float score_opponent_turn(board4 &board, color4 nexttile, float min,
float max, hdelta h, int maxdepth);
void update_heuristic(board4 &board, color4 propagator,
elist<boardchange> &undolist, hdelta &h);
float calc_heuristic(hdelta h);
float score_move(board4 &board, color4 tile, move_t m, float min, float max,
hdelta h, int maxdepth);
move_t pick_random(elist<move_t> &list);
void pick_best_move(int parentfd);
void make_move();
protected:
void notify_move(int player, elist<boardchange> &chg);
void notify_clear();
public:
atom4ai(eventloop *loop, unsigned int width, unsigned int height,
int which_player);
~atom4ai();
// AI configuration
void set_search_depth(int depth) { search_depth=depth; }
// Base class overrides
void reset(); // restart game
mode_t game_mode();
int local_playernum();
int is_local_turn();
int newround();
};
#endif // AI_H
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