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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*-
* Copyright (c) 2002 by Edwin de Jong <mauddib@gmx.net>.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation.
*
* This file is provided AS IS with no warranties of any kind. The author
* shall have no liability with respect to the infringement of copyrights,
* trade secrets or any patents by this file or any part thereof. In no
* event will the author be liable for any lost revenue or profits or
* other special, indirect and consequential damages.
*
* Revision History:
* 3-May-2002: Added AI to pacman and ghosts, slowed down ghosts.
* 26-Nov-2001: Random level generator added
* 01-Nov-2000: Allocation checks
* 04-Jun-1997: Compatible with xscreensaver
*
*/
#ifndef __PACMAN_H__
#define __PACMAN_H__
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "xlockmoreI.h"
#include "ximage-loader.h"
#define LEVHEIGHT 32U
#define LEVWIDTH 40U
#define TILEWIDTH 5U
#define TILEHEIGHT 5U
#define GETNB(n) ((1 << (n)) - 1)
#define TESTNB(v, n) (((1 << (n)) & v) != 0x00)
#define SNB(v, n) ((v) |= (1 << (n)))
#define UNSNB(v, n) ((v) &= ~(1 << (n)))
#define GHOSTS 4U
#define MAXMOUTH 3
#define MAXGPOS 2
#define MAXGDIR 4
#define MAXGWAG 2
#define MAXGFLASH 2
#define MINGRIDSIZE 4
#define MINSIZE 3
#define NOWHERE 16383
#define START ((LRAND() & 1) ? 1 : 3)
#define MINDOTPERC 10
#define YELLOW (MI_NPIXELS(mi) / 6)
#define GREEN (23 * MI_NPIXELS(mi) / 64)
#define BLUE (45 * MI_NPIXELS(mi) / 64)
#define WHITE (MI_NPIXELS(mi))
#define LINEWIDTH 4
#define HLINEWIDTH 1
#define JAILHEIGHT 7
#define JAILWIDTH 8
#define GETFACTOR(x, y) ((x) > (y) ? 1 : ((x) < (y) ? -1 : 0))
#define SIGN(x) GETFACTOR((x), 0)
#define TRACEVECS 40
#define PAC_DEATH_FRAMES 8
#define GHOST_TRACE ( LEVWIDTH * LEVHEIGHT )
#define DIRVECS 4
#define NUM_BONUS_DOTS 4
typedef struct
{
int vx, vy;
} tracevec_struct;
typedef enum
{ inbox = 0, goingout, randdir, chasing, hiding, goingin } GhostState;
typedef enum
{ ps_eating = 0, ps_chasing, ps_hiding, ps_random, ps_dieing } PacmanState;
typedef enum
{ GHOST_DANGER, GHOST_EATEN } GameState;
typedef struct
{
volatile unsigned int col, row;
unsigned int lastbox, nextcol, nextrow;
int dead;
int cfactor, rfactor;
int cf, rf;
int oldcf, oldrf;
volatile int timeleft;
GhostState aistate;
int speed;
XPoint delta;
XPoint err;
int flash_scared;
int trace_idx;
tracevec_struct trace[GHOST_TRACE];
int home_idx;
volatile int home_count;
tracevec_struct way_home[GHOST_TRACE];
volatile int wait_pos; /* a cycle before calculating the position */
#if 0 /* Used for debugging */
int ndirs;
int oldndirs;
#endif
#if 0 /* Used for debugging */
char last_stat[1024];
#endif
} ghoststruct;
typedef struct
{
unsigned int col, row;
unsigned int lastbox, nextcol, nextrow;
int mouthstage, mouthdirection;
int cfactor, rfactor;
int cf, rf;
int oldcf, oldrf;
int oldlx, oldly;
int justate;
PacmanState aistate;
tracevec_struct trace[TRACEVECS];
int cur_trace;
int state_change;
int roundscore;
int speed;
int lastturn;
XPoint delta;
XPoint err;
int deaths;
int init_row;
} pacmanstruct;
typedef struct
{
unsigned int x, y;
int eaten;
} bonus_dot;
/* This are tiles which can be placed to create a level. */
struct tiles {
char block[TILEWIDTH * TILEHEIGHT + 1];
unsigned dirvec[4];
unsigned ndirs;
unsigned simular_to;
};
typedef struct
{
unsigned short width, height;
unsigned short nrows, ncols;
short xs, ys, xb, yb;
short incx, incy;
GC stippledGC;
int graphics_format;
pacmanstruct pacman;
ghoststruct *ghosts;
unsigned int nghosts;
Pixmap pacmanPixmap[4][MAXMOUTH];
Pixmap pacmanMask[4][MAXMOUTH];
Pixmap pacman_ds[PAC_DEATH_FRAMES]; /* pacman death sequence */
Pixmap pacman_ds_mask[PAC_DEATH_FRAMES];
Pixmap ghostPixmap[4][MAXGDIR][MAXGWAG];
Pixmap ghostMask;
Pixmap s_ghostPixmap[MAXGFLASH][MAXGWAG]; /* Scared ghost Pixmaps */
Pixmap ghostEyes[MAXGDIR];
char level[LEVHEIGHT * LEVWIDTH];
unsigned int wallwidth;
unsigned int dotsleft;
int spritexs, spriteys, spritedx, spritedy;
GameState gamestate;
unsigned int timeleft;
char last_pac_stat[1024];
/* draw_pacman_sprite */
int pm_mouth;
int pm_mouth_delay;
int pm_open_mouth;
int pm_death_frame;
int pm_death_delay;
/* draw_ghost_sprite */
int gh_wag;
int gh_wag_count;
/* flash_bonus_dots */
int bd_flash_count;
int bd_on;
/* pacman_tick */
int ghost_scared_timer;
int flash_timer;
PacmanState old_pac_state;
/* pacman_level.c */
bonus_dot bonus_dots[NUM_BONUS_DOTS];
struct tiles *tiles;
} pacmangamestruct;
extern pacmangamestruct *pacman_games;
extern Bool pacman_trackmouse;
typedef char lev_t[LEVHEIGHT][LEVWIDTH + 1];
#endif /* __PACMAN_H__ */
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