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game.c
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game.c
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/* File game.c */
#include "wand_head.h"
#include "display.h"
#include "fall.h"
#include "help.h"
#include "icon.h"
#include "jump.h"
#include "monsters.h"
#include "save.h"
#include <curses.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
extern int debug_disp;
extern int edit_mode;
extern int saved_game;
extern int record_file;
extern char screen[NOOFROWS][ROWLEN + 1];
extern char *edit_memory;
extern char *memory_end;
struct mon_rec start_of_list = { 0, 0, 0, 0, 0, NULL, NULL };
struct mon_rec *last_of_list, *tail_of_list;
/***************************************************************
* function playscreen (the game) *
****************************************************************/
/********************************************************************
* Actual game function - Calls fall() to move boulders and arrows *
* recursively. *
* Variable explaination : *
* All the var names make sense to ME, but some people *
* think them a bit confusing... :-) So heres an explanation. *
* x,y : where you are *
* nx,ny : where you're trying to move to *
* sx,sy : where the screen window on the playing area is *
* mx,my : where the monster is *
* tx,ty : teleport arrival *
* bx,by : baby monster position *
* nbx,nby : where it wants to be *
* lx,ly : the place you left when teleporting *
* nf : how many diamonds youve got so far *
* new_disp : the vector the baby monster is trying *
*********************************************************************/
char *playscreen(int *num, long *score, int *bell, int maxmoves, char keys[10])
{
int x, y, nx, ny, deadyet = 0, sx = -1, sy = -1, tx = -1, ty =
-1, lx = 0, ly = 0, mx = -1, my = -1, newnum, recording = 0, diamonds =
0, nf = 0, tmpx, tmpy;
char (*frow)[ROWLEN + 1] = screen, *memory_ptr, buffer[25];
int ch;
struct mon_rec *monster;
static char howdead[25]; /* M001 can't use auto var for return value */
tail_of_list = &start_of_list;
memory_ptr = edit_memory;
for (x = 0; x <= ROWLEN; x++)
for (y = 0; y < NOOFROWS; y++)
{
if ((screen[y][x] == '*') || (screen[y][x] == '+'))
diamonds++;
if (screen[y][x] == 'A') /* note teleport arrival point & */
{ /* replace with space */
tx = x;
ty = y;
screen[y][x] = ' ';
}
if (screen[y][x] == '@')
{
sx = x;
sy = y;
}
if (screen[y][x] == 'M') /* Put megamonster in */
{
mx = x;
my = y;
}
if (screen[y][x] == 'S') /* link small monster to pointer chain */
{
if ((monster = make_monster(x, y)) == NULL)
{
strcpy(howdead, "running out of memory");
return howdead;
}
if (!viable(x, y - 1)) /* make sure its running in the correct */
{ /* direction.. */
monster->mx = 1;
monster->my = 0;
}
else if (!viable(x + 1, y))
{
monster->mx = 0;
monster->my = 1;
}
else if (!viable(x, y + 1))
{
monster->mx = -1;
monster->my = 0;
}
else if (!viable(x - 1, y))
{
monster->mx = 0;
monster->my = -1;
}
}
if (screen[y][x] == '-')
screen[y][x] = ' ';
};
x = sx;
y = sy;
if ((x == -1) && (y == -1)) /* no start position in screen ? */
{
strcpy(howdead, "a screen design error");
return (howdead);
}
if (maxmoves < 1)
maxmoves = -1;
update_game: /* M002 restored game restarts here */
redraw_screen(bell, maxmoves, *num, *score, nf, diamonds, mx, sx, sy,
frow);
keypad(stdscr, TRUE); // Enable arrow keys
/* ACTUAL GAME FUNCTION - Returns method of death in string */
while (deadyet == 0)
{
switch (recording)
{
case 1:
ch = getch();
*memory_ptr++ = ch;
memory_end++;
break;
case 2:
ch = *memory_ptr++;
if (ch == '\0')
ch = ')';
break;
default:
ch = getch();
}
if ((record_file != -1) && (ch != 'q'))
if (write(record_file, &ch, 1) == -1)
{
fprintf(stderr, "write error\n");
exit(EXIT_FAILURE);
}
nx = x;
ny = y;
if (((ch == keys[3]) || (ch == KEY_RIGHT)) && (x < (ROWLEN - 1))) // RIGHT
/* move about - but thats obvious */
nx++;
if (((ch == keys[2]) || (ch == KEY_LEFT)) && (x > 0)) // LEFT
nx--;
if (((ch == keys[1]) || (ch == KEY_DOWN)) && (y < (NOOFROWS - 1))) // DOWN
ny++;
if (((ch == keys[0]) || (ch == KEY_UP)) && (y > 0)) // UP
ny--;
if (ch == '1') /* Add or get rid of that awful sound */
{
move(17, 56);
*bell = 1;
addstr("Bell ON ");
move(16, 0);
refresh();
continue;
}
if (ch == '0')
{
*bell = 0;
move(17, 56);
addstr("Bell OFF");
move(16, 0);
refresh();
continue;
}
if (ch == '~') /* level jump */
{
if (edit_mode)
continue;
if ((newnum = jumpscreen(*num)) == 0)
{
strcpy(howdead, "a jump error.");
return howdead;
}
if (newnum != *num)
{ /* Sorry Greg, no points for free */
sprintf(howdead, "~%c", newnum);
return howdead;
}
continue;
}
if (ch == '!') /* look at the map */
{
if (debug_disp)
continue;
map(frow);
display(sx, sy, frow);
continue;
}
if (ch == 'q')
{
strcpy(howdead, "quitting the game");
return howdead;
}
if (ch == '?')
{
helpme(1);
if (debug_disp)
map(frow);
else
display(sx, sy, frow);
continue;
}
if ((ch == '@') && (!debug_disp))
{
sx = x;
sy = y;
display(sx, sy, frow);
continue;
}
if (ch == '#')
{
debug_disp = 1 - debug_disp;
if (debug_disp)
map(frow);
else
{
for (tmpy = 0; tmpy <= (NOOFROWS + 1); tmpy++)
{
move(tmpy, 0);
for (tmpx = 0; tmpx <= (ROWLEN + 2); tmpx++)
addch(' ');
}
sx = x;
sy = y;
display(sx, sy, frow);
}
continue;
}
if ((ch == 'W') || ((int) ch == 12))
{
redraw_screen(bell, maxmoves, *num, *score, nf, diamonds, mx, sx,
sy, frow);
continue;
}
/* Edit screen memory functions */
if (edit_memory)
{
if ((ch == '(') && (recording == 0))
/* start recording from beginning */
{
memory_end = memory_ptr = edit_memory;
move(10, 53);
addstr(" -Recording-");
refresh();
recording = 1;
continue;
}
if ((ch == ')') && (recording != 0))
/* stop recording or playback */
{
recording = 0;
move(10, 53);
addstr(" -- End -- ");
refresh();
move(10, 53);
addstr(" -Occupied- ");
continue;
}
if ((ch == '*') && (recording == 0)) /* playback memory */
{
memory_ptr = edit_memory;
recording = 2;
move(10, 53);
addstr(" -Playback- ");
refresh();
continue;
}
if ((ch == '&') && (recording == 0)) /* extend recording,either from */
{ /* end or from checkpoint */
recording = 1;
move(10, 53);
addstr(" -Recording-");
refresh();
if (*(memory_ptr - 1) != '-')
memory_ptr--;
continue;
}
if ((ch == '+') && (recording == 0) && (memory_ptr < memory_end))
{
/* continue from checkpoint */
recording = 2;
move(10, 53);
addstr(" -Playback- ");
refresh();
continue;
}
if ((ch == '-') && (recording != 0))
/*create or react to a checkpoint */
{
/* checkpoint */
move(10, 53);
addstr("-Checkpoint-");
refresh();
move(10, 53);
if (recording == 2)
{
recording = 0;
addstr(" -Occupied- ");
}
else
addstr(" -Recording-");
continue;
}
}
/* end of memory functions */
/* M002 Added save/restore game feature. Gregory H. Margo */
if (ch == 'S') /* save game */
{
extern struct save_vars zz;
/* stuff away important local variables to be saved */
/* so the game state may be acurately restored */
zz.z_x = x;
zz.z_y = y;
zz.z_sx = sx;
zz.z_sy = sy;
zz.z_tx = tx;
zz.z_ty = ty;
zz.z_mx = mx;
zz.z_my = my;
zz.z_diamonds = diamonds;
zz.z_nf = nf;
save_game(*num, score, bell, maxmoves);
/* NOTREACHED ... unless there's been an error. */
}
if (ch == 'R') /* restore game */
{
extern struct save_vars zz;
restore_game(num, score, bell, &maxmoves);
/* recover important local variables */
x = zz.z_x;
y = zz.z_y;
sx = zz.z_sx;
sy = zz.z_sy;
tx = zz.z_tx;
ty = zz.z_ty;
mx = zz.z_mx;
my = zz.z_my;
diamonds = zz.z_diamonds;
nf = zz.z_nf;
goto update_game; /* the dreaded goto */
}
if (screen[ny][nx] == 'C')
{
screen[ny][nx] = ':';
*score += 4;
if (maxmoves != -1)
maxmoves += 250;
}
switch (screen[ny][nx])
{
case '@':
break;
case '*':
*score += 9;
nf++;
#ifdef NOISY
if (*bell)
printf("\007");
#endif
case ':':
*score += 1;
move(3, 48);
sprintf(buffer, "%ld\t %d", *score, nf);
addstr(buffer);
case ' ':
screen[y][x] = ' ';
screen[ny][nx] = '@';
if (!debug_disp)
{
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
draw_symbol((nx - sx + 5) * 3, (ny - sy + 3) * 2, '@');
}
else
{
move(y + 1, x + 1);
addch(' ');
move(ny + 1, nx + 1);
addch('@');
}
deadyet += check(&mx, &my, x, y, nx - x, ny - y, sx, sy, howdead);
move(16, 0);
refresh();
y = ny;
x = nx;
break;
case 'O':
if ((nx == 0) || (nx == ROWLEN))
break;
if (screen[y][nx * 2 - x] == 'M')
{
screen[y][nx * 2 - x] = ' ';
mx = my = -1;
*score += 100;
move(3, 48);
sprintf(buffer, "%ld\t %d\t %d ", *score, nf, diamonds);
addstr(buffer);
draw_symbol(50, 11, ' ');
move(12, 56);
printw("%14s", "");
move(13, 56);
printw("%14s", "");
move(16, 0);
refresh();
}
if (screen[y][nx * 2 - x] == ' ')
{
screen[y][nx * 2 - x] = 'O';
screen[y][x] = ' ';
screen[ny][nx] = '@';
if (!debug_disp)
{
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
draw_symbol((nx - sx + 5) * 3, (ny - sy + 3) * 2, '@');
if (nx * 2 - x > sx - 6 && nx * 2 - x < sx + 6)
draw_symbol((nx * 2 - x - sx + 5) * 3,
(y - sy + 3) * 2, 'O');
}
else
{
move(y + 1, x + 1);
addch(' ');
move(ny + 1, nx + 1);
addch('@');
move(y + 1, nx * 2 - x + 1);
addch('O');
}
deadyet += fall(&mx, &my, nx * 2 - x, y + 1, sx, sy, howdead);
deadyet += fall(&mx, &my, x * 2 - nx, y, sx, sy, howdead);
deadyet += fall(&mx, &my, x, y, sx, sy, howdead);
deadyet += fall(&mx, &my, x, y - 1, sx, sy, howdead);
deadyet += fall(&mx, &my, x, y + 1, sx, sy, howdead);
move(16, 0);
refresh();
y = ny;
x = nx;
}
break;
case '^':
if ((nx == 0) || (nx == ROWLEN))
break;
if (screen[y][nx * 2 - x] == ' ')
{
screen[y][nx * 2 - x] = '^';
screen[y][x] = ' ';
screen[ny][nx] = '@';
if (!debug_disp)
{
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
draw_symbol((nx - sx + 5) * 3, (ny - sy + 3) * 2, '@');
if (nx * 2 - x > sx - 6 && nx * 2 - x < sx + 6)
draw_symbol((nx * 2 - x - sx + 5) * 3,
(y - sy + 3) * 2, '^');
}
else
{
move(y + 1, x + 1);
addch(' ');
move(ny + 1, nx + 1);
addch('@');
move(y + 1, nx * 2 - x + 1);
addch('^');
}
deadyet += fall(&mx, &my, nx * 2 - x, y - 1, sx, sy, howdead);
deadyet += fall(&mx, &my, x * 2 - nx, y, sx, sy, howdead);
deadyet += fall(&mx, &my, x, y, sx, sy, howdead);
deadyet += fall(&mx, &my, x, y + 1, sx, sy, howdead);
deadyet += fall(&mx, &my, x, y - 1, sx, sy, howdead);
move(16, 0);
refresh();
y = ny;
x = nx;
}
break;
case '<':
case '>':
if ((ny == 0) || (ny == NOOFROWS))
break;
if (screen[ny * 2 - y][x] == 'M')
{
screen[ny * 2 - y][x] = ' ';
mx = my = -1;
*score += 100;
move(3, 48);
sprintf(buffer, "%ld\t %d\t %d ", *score, nf, diamonds);
addstr(buffer);
draw_symbol(50, 11, ' ');
move(12, 56);
printw("%14s", "");
move(13, 56);
printw("%14s", "");
move(16, 0);
refresh();
}
if (screen[ny * 2 - y][x] == ' ')
{
screen[ny * 2 - y][x] = screen[ny][nx];
screen[y][x] = ' ';
screen[ny][nx] = '@';
if (!debug_disp)
{
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
draw_symbol((nx - sx + 5) * 3, (ny - sy + 3) * 2, '@');
if (ny * 2 - y > sy - 4 && ny * 2 - y < sy + 4)
draw_symbol((x - sx + 5) * 3,
(ny * 2 - y - sy + 3) * 2,
screen[ny * 2 - y][x]);
}
else
{
move(y + 1, x + 1);
addch(' ');
move(ny + 1, nx + 1);
addch('@');
move(ny * 2 - y + 1, x + 1);
addch(screen[ny * 2 - y][x]);
}
deadyet += fall(&mx, &my, x, y, sx, sy, howdead);
deadyet +=
fall(&mx, &my, x - 1, (ny > y) ? y : (y - 1), sx, sy,
howdead);
deadyet +=
fall(&mx, &my, x + 1, (ny > y) ? y : (y - 1), sx, sy,
howdead);
deadyet += fall(&mx, &my, x - 1, ny * 2 - y, sx, sy, howdead);
deadyet += fall(&mx, &my, x + 1, ny * 2 - y, sx, sy, howdead);
move(16, 0);
refresh();
y = ny;
x = nx;
}
break;
case '~':
if (((2 * nx - x) < 0) || ((ny * 2 - y) > NOOFROWS)
|| ((ny * 2 - y) < 0) || ((2 * nx - x) > ROWLEN))
break;
if (screen[ny * 2 - y][nx * 2 - x] == 'M')
{
screen[ny * 2 - y][nx * 2 - x] = ' ';
mx = my = -1;
*score += 100;
move(3, 48);
sprintf(buffer, "%ld\t %d\t %d ", *score, nf, diamonds);
addstr(buffer);
draw_symbol(50, 11, ' ');
move(12, 56);
printw("%14s", "");
move(13, 56);
printw("%14s", "");
move(16, 0);
refresh();
}
if (screen[ny * 2 - y][nx * 2 - x] == ' ')
{
screen[ny * 2 - y][nx * 2 - x] = '~';
screen[y][x] = ' ';
screen[ny][nx] = '@';
if (!debug_disp)
{
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
draw_symbol((nx - sx + 5) * 3, (ny - sy + 3) * 2, '@');
if ((ny * 2 - y > sy - 4) && (ny * 2 - y < sy + 4))
draw_symbol((nx * 2 - x - sx + 5) * 3,
(ny * 2 - y - sy + 3) * 2, '~');
}
else
{
move(y + 1, x + 1);
addch(' ');
move(ny + 1, nx + 1);
addch('@');
move(ny * 2 - y + 1, nx * 2 - x + 1);
addch('~');
}
deadyet +=
check(&mx, &my, x, y, nx - x, ny - y, sx, sy, howdead);
move(16, 0);
refresh();
y = ny;
x = nx;
}
break;
case '!':
strcpy(howdead, "an exploding landmine");
deadyet = 1;
if (!debug_disp)
{
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
draw_symbol((nx - sx + 5) * 3, (ny - sy + 3) * 2, '%');
}
else
{
move(y + 1, x + 1);
addch(' ');
move(ny + 1, nx + 1);
addch('@');
}
move(16, 0);
refresh();
break;
case 'X':
if (nf == diamonds)
{
*score += 250;
showpass(*num);
return NULL;
}
break;
case 'T':
if (tx > -1)
{
screen[ny][nx] = ' ';
screen[y][x] = ' ';
lx = x;
ly = y;
y = ty;
x = tx;
screen[y][x] = '@';
sx = x;
sy = y;
*score += 20;
move(3, 48);
sprintf(buffer, "%ld\t %d\t %d ", *score, nf, diamonds);
addstr(buffer);
if (!debug_disp)
display(sx, sy, frow);
else
map(frow);
deadyet += fall(&mx, &my, nx, ny, sx, sy, howdead);
if (deadyet == 0)
deadyet = fall(&mx, &my, lx, ly, sx, sy, howdead);
if (deadyet == 0)
deadyet = fall(&mx, &my, lx + 1, ly - 1, sx, sy, howdead);
if (deadyet == 0)
deadyet = fall(&mx, &my, lx + 1, ly + 1, sx, sy, howdead);
if (deadyet == 0)
deadyet = fall(&mx, &my, lx - 1, ly + 1, sx, sy, howdead);
if (deadyet == 0)
deadyet = fall(&mx, &my, lx - 1, ly - 1, sx, sy, howdead);
move(16, 0);
refresh();
}
else
{
screen[ny][nx] = ' ';
printf("Teleport out of order");
}
break;
case 'M':
strcpy(howdead, "a hungry monster");
deadyet = 1;
if (!debug_disp)
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
else
{
move(y + 1, x + 1);
addch(' ');
}
move(16, 0);
refresh();
break;
case 'S':
strcpy(howdead, "walking into a monster");
deadyet = 1;
if (!debug_disp)
draw_symbol((x - sx + 5) * 3, (y - sy + 3) * 2, ' ');
else
{
move(y + 1, x + 1);
addch(' ');
}
move(16, 0);
refresh();
break;
default:
break;
}
if ((y == ny) && (x == nx) && (maxmoves > 0))
{
sprintf(buffer, "Moves remaining = %d ", --maxmoves);
move(15, 48);
addstr(buffer);
}
if (maxmoves == 0)
{
strcpy(howdead, "running out of time");
deadyet = 1;
if (edit_mode)
maxmoves = -1;
}
if (!debug_disp)
{
if ((x < (sx - 3)) && (deadyet == 0)) /* screen scrolling if necessary */
{
sx -= 6;
if (sx < 4)
sx = 4;
display(sx, sy, frow);
}
if ((y < (sy - 2)) && (deadyet == 0))
{
sy -= 5;
if (sy < 2)
sy = 2;
display(sx, sy, frow);
}
if ((x > (sx + 3)) && (!deadyet))
{
sx += 6;
if (sx > (ROWLEN - 5))
sx = ROWLEN - 5;
display(sx, sy, frow);
}
if ((y > (sy + 2)) && (!deadyet))
{
sy += 5;
if (sy > (NOOFROWS - 3))
sy = NOOFROWS - 3;
display(sx, sy, frow);
}
}
deadyet +=
move_monsters(&mx, &my, score, howdead, sx, sy, nf, *bell, x, y,
diamonds);
if ((edit_mode) && (deadyet)) /* stop death if testing */
{
recording = 0;
move(10, 53);
addstr("-Occupied- ");
if (!debug_disp)
move(18, 0);
else
move(20, 0);
addstr("You were killed by ");
addstr(howdead);
addstr("\nPress 'c' to continue.");
refresh();
ch = getch();
if (ch == 'c')
deadyet = 0;
if (!debug_disp)
move(18, 0);
else
move(20, 0);
printw("%62s", "");
printw("\n%22s", "");
refresh();
}
}
return (howdead);
}