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logic.h
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logic.h
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/* logic.h: Declarations for the game logic modules.
*
* Copyright (C) 2001-2010 by Brian Raiter and Madhav Shanbhag,
* under the GNU General Public License. No warranty. See COPYING for details.
*/
#ifndef HEADER_logic_h_
#define HEADER_logic_h_
#include "state.h"
/* Turning macros.
*/
#define left(dir) ((((dir) << 1) | ((dir) >> 3)) & 15)
#define back(dir) ((((dir) << 2) | ((dir) >> 2)) & 15)
#define right(dir) ((((dir) << 3) | ((dir) >> 1)) & 15)
/* One game logic engine.
*/
typedef struct gamelogic gamelogic;
struct gamelogic {
int ruleset; /* the ruleset */
gamestate *state; /* ptr to the current game state */
int (*initgame)(gamelogic*); /* prepare to play a game */
int (*advancegame)(gamelogic*); /* advance the game one tick */
int (*endgame)(gamelogic*); /* clean up after the game is done */
void (*shutdown)(gamelogic*); /* turn off the logic engine */
};
/* The available game logic engines.
*/
extern gamelogic *lynxlogicstartup(void);
extern gamelogic *mslogicstartup(void);
/* The high simluation fidelity flag: if true, the simulation should
* forgo "standard play" in favor of being as true as possible to the
* original source material.
*/
extern int pedanticmode;
#endif