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rockbox/apps/recorder/sokoban.c
Eric Linenberg ed69390542 fixed bug with undo and switching levels 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3109 a1c6a512-1295-4272-9138-f99709370657
2003-01-16 14:50:34 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Eric Linenberg
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "options.h"
#ifdef USE_GAMES
#include <sprintf.h>
#include "sokoban.h"
#include "lcd.h"
#include "button.h"
#include "kernel.h"
#include "menu.h"
#include "screens.h"
#include "font.h"
#include "sokoban_levels.h"
#ifdef SIMULATOR
#include <stdio.h>
#endif
#include <string.h>
#include "lang.h"
#define SOKOBAN_TITLE "Sokoban"
#define SOKOBAN_TITLE_FONT 2
#define NUM_LEVELS sizeof(levels)/320
static void load_level(int);
static void update_screen(void);
static bool sokoban_loop(void);
static void copy_current_state_to_undo(void);
static void copy_current_undo_to_state(void);
static char board[16][20];
static char undo_board[16][20];
static int current_level=0;
static int undo_current_level=0;
static int moves=0;
static int undo_moves=0;
static int row=0;
static int undo_row=0;
static int col=0;
static int undo_col=0;
static int boxes_to_go=0;
static int undo_boxes_to_go=0;
static char current_spot= ' ';
static char undo_current_spot=' ';
static void copy_current_state_to_undo(void) {
int a = 0;
int b = 0;
for (a=0 ; a<16 ; a++) {
for (b=0; b<16 ; b++) {
undo_board[a][b] = board[a][b];
}
}
undo_current_level = current_level;
undo_moves = moves;
undo_row = row;
undo_col = col;
undo_boxes_to_go = boxes_to_go;
undo_current_spot = current_spot;
return;
}
static void copy_current_undo_to_state(void) {
int a = 0;
int b = 0;
for (a=0 ; a<16 ; a++) {
for (b=0; b<16 ; b++) {
board[a][b] = undo_board[a][b];
}
}
current_level = undo_current_level;
moves = undo_moves-1;
row = undo_row;
col = undo_col;
boxes_to_go = undo_boxes_to_go;
current_spot = undo_current_spot;
return;
}
static void load_level (int level_to_load) {
int a = 0;
int b = 0;
int c = 0;
current_spot=' ';
boxes_to_go = 0;
/* load level into board */
/* get to the current level in the level array */
for(b=0 ; b<16 ; b++) {
for (c=0 ; c<20 ; c++) {
board[b][c] = levels[level_to_load][a]/* - '0'*/;
a++;
if (board[b][c]=='@') {
row = b;
col = c;
}
if (board[b][c]=='.')
boxes_to_go++;
}
}
return;
}
static void update_screen(void) {
int b = 0;
int c = 0;
char s[25];
/* load the board to the screen */
for(b=0 ; b<16 ; b++) {
for (c=0 ; c<20 ; c++) {
switch ( board[b][c] ) {
case 'X': /* this is a black space */
lcd_drawrect (c*4, b*4, 4, 4);
lcd_drawrect (c*4+1, b*4+1, 2, 2);
break;
case '#': /* this is a wall */
lcd_drawpixel (c*4, b*4);
lcd_drawpixel (c*4+2, b*4);
lcd_drawpixel (c*4+1, b*4+1);
lcd_drawpixel (c*4+3, b*4+1);
lcd_drawpixel (c*4, b*4+2);
lcd_drawpixel (c*4+2, b*4+2);
lcd_drawpixel (c*4+1, b*4+3);
lcd_drawpixel (c*4+3, b*4+3);
break;
case '.': /* this is a home location */
lcd_drawrect (c*4+1, b*4+1, 2, 2);
break;
case '$': /* this is a box */
lcd_drawrect (c*4, b*4, 4, 4);
break;
case '@': /* this is you */
lcd_drawline (c*4+1, b*4, c*4+2, b*4);
lcd_drawline (c*4, b*4+1, c*4+3, b*4+1);
lcd_drawline (c*4+1, b*4+2, c*4+2, b*4+2);
lcd_drawpixel (c*4, b*4+3);
lcd_drawpixel (c*4+3, b*4+3);
break;
case '%': /* this is a box on a home spot */
lcd_drawrect (c*4, b*4, 4, 4);
lcd_drawrect (c*4+1, b*4+1, 2, 2);
break;
}
}
}
snprintf (s, sizeof(s), "%d", current_level+1);
lcd_putsxy (86, 22, s);
snprintf (s, sizeof(s), "%d", moves);
lcd_putsxy (86, 54, s);
lcd_drawrect (80,0,32,32);
lcd_drawrect (80,32,32,64);
lcd_putsxy (81, 10, str(LANG_SOKOBAN_LEVEL));
lcd_putsxy (81, 42, str(LANG_SOKOBAN_MOVE));
/* print out the screen */
lcd_update();
}
static bool sokoban_loop(void)
{
int ii = 0;
moves = 0;
current_level = 0;
load_level(current_level);
update_screen();
while(1) {
bool idle = false;
switch ( button_get(true) ) {
case BUTTON_OFF:
/* get out of here */
return false;
case BUTTON_F3:
/* increase level */
boxes_to_go=0;
idle=true;
break;
case BUTTON_ON:
/* this is UNDO */
copy_current_undo_to_state();
break;
case BUTTON_F2:
/* same level */
load_level(current_level);
moves=0;
idle=true;
load_level(current_level);
lcd_clear_display();
update_screen();
copy_current_state_to_undo();
copy_current_undo_to_state();
break;
case BUTTON_F1:
/* previous level */
if (current_level)
current_level--;
load_level(current_level);
moves=0;
idle=true;
load_level(current_level);
lcd_clear_display();
update_screen();
copy_current_state_to_undo();
copy_current_undo_to_state();
break;
case BUTTON_LEFT:
copy_current_state_to_undo();
switch ( board[row][col-1] ) {
case ' ': /* if it is a blank spot */
board[row][col-1]='@';
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if it is a home spot */
board[row][col-1]='@';
board[row][col]=current_spot;
current_spot='.';
break;
case '$':
switch ( board[row][col-2] ) {
case ' ': /* if we are going from blank to blank */
board[row][col-2]=board[row][col-1];
board[row][col-1]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if we are going from a blank to home */
board[row][col-2]='%';
board[row][col-1]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
boxes_to_go--;
break;
default:
idle = true;
break;
}
break;
case '%':
switch ( board[row][col-2] ) {
case ' ': /* we are going from a home to a blank */
board[row][col-2]='$';
board[row][col-1]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
boxes_to_go++;
break;
case '.': /* if we are going from a home to home */
board[row][col-2]='%';
board[row][col-1]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
break;
default:
idle = true;
break;
}
break;
default:
idle = true;
break;
}
if (!idle)
col--;
break;
case BUTTON_RIGHT: /* if it is a blank spot */
copy_current_state_to_undo();
switch ( board[row][col+1] ) {
case ' ':
board[row][col+1]='@';
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if it is a home spot */
board[row][col+1]='@';
board[row][col]=current_spot;
current_spot='.';
break;
case '$':
switch ( board[row][col+2] ) {
case ' ': /* if we are going from blank to blank */
board[row][col+2]=board[row][col+1];
board[row][col+1]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if we are going from a blank to home */
board[row][col+2]='%';
board[row][col+1]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
boxes_to_go--;
break;
default:
idle = true;
break;
}
break;
case '%':
switch ( board[row][col+2] ) {
case ' ': /* we are going from a home to a blank */
board[row][col+2]='$';
board[row][col+1]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
boxes_to_go++;
break;
case '.':
board[row][col+2]='%';
board[row][col+1]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
break;
default:
idle = true;
break;
}
break;
default:
idle = true;
break;
}
if (!idle)
col++;
break;
case BUTTON_UP:
copy_current_state_to_undo();
switch ( board[row-1][col] ) {
case ' ': /* if it is a blank spot */
board[row-1][col]='@';
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if it is a home spot */
board[row-1][col]='@';
board[row][col]=current_spot;
current_spot='.';
break;
case '$':
switch ( board[row-2][col] ) {
case ' ': /* if we are going from blank to blank */
board[row-2][col]=board[row-1][col];
board[row-1][col]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if we are going from a blank to home */
board[row-2][col]='%';
board[row-1][col]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
boxes_to_go--;
break;
default:
idle = true;
break;
}
break;
case '%':
switch ( board[row-2][col] ) {
case ' ': /* we are going from a home to a blank */
board[row-2][col]='$';
board[row-1][col]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
boxes_to_go++;
break;
case '.': /* if we are going from a home to home */
board[row-2][col]='%';
board[row-1][col]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
break;
default:
idle = true;
break;
}
break;
default:
idle = true;
break;
}
if (!idle)
row--;
break;
case BUTTON_DOWN:
copy_current_state_to_undo();
switch ( board[row+1][col] ) {
case ' ': /* if it is a blank spot */
board[row+1][col]='@';
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if it is a home spot */
board[row+1][col]='@';
board[row][col]=current_spot;
current_spot='.';
break;
case '$':
switch ( board[row+2][col] ) {
case ' ': /* if we are going from blank to blank */
board[row+2][col]=board[row+1][col];
board[row+1][col]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
break;
case '.': /* if we are going from a blank to home */
board[row+2][col]='%';
board[row+1][col]=board[row][col];
board[row][col]=current_spot;
current_spot=' ';
boxes_to_go--;
break;
default:
idle = true;
break;
}
break;
case '%':
switch ( board[row+2][col] ) {
case ' ': /* we are going from a home to a blank */
board[row+2][col]='$';
board[row+1][col]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
boxes_to_go++;
break;
case '.': /* if we are going from a home to home */
board[row+2][col]='%';
board[row+1][col]=board[row][col];
board[row][col]=current_spot;
current_spot='.';
break;
default:
idle = true;
break;
}
break;
default:
idle = true;
break;
}
if (!idle)
row++;
break;
case SYS_USB_CONNECTED:
usb_screen();
return true;
default:
idle = true;
break;
}
if (!idle) {
moves++;
lcd_clear_display();
update_screen();
}
if (boxes_to_go==0) {
moves=0;
current_level++;
if (current_level == NUM_LEVELS) {
lcd_clear_display();
lcd_putsxy(10, 20, str(LANG_SOKOBAN_WIN));
for(ii=0; ii<30000 ; ii++) {
lcd_invertrect(0,0,111,63);
lcd_update();
if ( button_get(false) )
return false;
}
return false;
}
load_level(current_level);
lcd_clear_display();
update_screen();
copy_current_state_to_undo();
copy_current_undo_to_state();
}
}
return false;
}
bool sokoban(void)
{
bool result;
int w, h;
int len;
lcd_setfont(FONT_SYSFIXED);
lcd_getstringsize(SOKOBAN_TITLE, &w, &h);
/* Get horizontel centering for text */
len = w;
if (len%2 != 0)
len = ((len+1)/2)+(w/2);
else
len /= 2;
if (h%2 != 0)
h = (h/2)+1;
else
h /= 2;
lcd_clear_display();
lcd_putsxy(LCD_WIDTH/2-len, (LCD_HEIGHT/2)-h, SOKOBAN_TITLE);
lcd_update();
sleep(HZ*2);
lcd_clear_display();
lcd_putsxy( 3,12, str(LANG_SOKOBAN_QUIT));
lcd_putsxy( 3,22, str(LANG_SOKOBAN_F1));
lcd_putsxy( 3,32, str(LANG_SOKOBAN_F2));
lcd_putsxy( 3,42, str(LANG_SOKOBAN_F3));
lcd_update();
sleep(HZ*2);
lcd_clear_display();
result = sokoban_loop();
lcd_setfont(FONT_UI);
return result;
}
#endif
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