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rockbox/apps/plugins/snake.c
Steve Bavin 6526577818 Plugin parameters should be const. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17492 a1c6a512-1295-4272-9138-f99709370657
2008-05-13 09:57:56 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Itai Shaked
*
* 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.
*
****************************************************************************/
/*
Snake!
by Itai Shaked
ok, a little explanation -
board holds the snake and apple position - 1+ - snake body (the number
represents the age [1 is the snake's head]).
-1 is an apple, and 0 is a clear spot.
dir is the current direction of the snake - 0=up, 1=right, 2=down, 3=left;
*/
#include "plugin.h"
#ifdef HAVE_LCD_BITMAP
PLUGIN_HEADER
/* variable button definitions */
#if CONFIG_KEYPAD == RECORDER_PAD
#define SNAKE_QUIT BUTTON_OFF
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_PLAY
#elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
#define SNAKE_QUIT BUTTON_OFF
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_SELECT
#elif CONFIG_KEYPAD == ONDIO_PAD
#define SNAKE_QUIT BUTTON_OFF
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_MENU
#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
(CONFIG_KEYPAD == IRIVER_H300_PAD)
#define SNAKE_QUIT BUTTON_OFF
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_ON
#define SNAKE_RC_QUIT BUTTON_RC_STOP
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
(CONFIG_KEYPAD == IPOD_3G_PAD) || \
(CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define SNAKE_QUIT (BUTTON_SELECT|BUTTON_MENU)
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_MENU
#define SNAKE_DOWN BUTTON_PLAY
#define SNAKE_PLAYPAUSE BUTTON_SELECT
#elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
#define SNAKE_QUIT BUTTON_POWER
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_PLAY
#elif (CONFIG_KEYPAD == GIGABEAT_PAD)
#define SNAKE_QUIT BUTTON_POWER
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_SELECT
#elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
(CONFIG_KEYPAD == SANSA_C200_PAD)
#define SNAKE_QUIT BUTTON_POWER
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_SELECT
#elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
#define SNAKE_QUIT BUTTON_POWER
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_SCROLL_UP
#define SNAKE_DOWN BUTTON_SCROLL_DOWN
#define SNAKE_PLAYPAUSE BUTTON_PLAY
#elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
#define SNAKE_QUIT BUTTON_BACK
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_SELECT
#elif (CONFIG_KEYPAD == MROBE100_PAD)
#define SNAKE_QUIT BUTTON_POWER
#define SNAKE_LEFT BUTTON_LEFT
#define SNAKE_RIGHT BUTTON_RIGHT
#define SNAKE_UP BUTTON_UP
#define SNAKE_DOWN BUTTON_DOWN
#define SNAKE_PLAYPAUSE BUTTON_SELECT
#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define SNAKE_QUIT BUTTON_RC_REC
#define SNAKE_LEFT BUTTON_RC_REW
#define SNAKE_RIGHT BUTTON_RC_FF
#define SNAKE_UP BUTTON_RC_VOL_UP
#define SNAKE_DOWN BUTTON_RC_VOL_DOWN
#define SNAKE_PLAYPAUSE BUTTON_RC_PLAY
#define SNAKE_RC_QUIT BUTTON_REC
#elif (CONFIG_KEYPAD == COWOND2_PAD)
#define SNAKE_QUIT BUTTON_POWER
#else
#error No keymap defined!
#endif
#ifdef HAVE_TOUCHPAD
#ifndef SNAKE_QUIT
#define SNAKE_QUIT BUTTON_TOPLEFT
#endif
#ifndef SNAKE_LEFT
#define SNAKE_LEFT BUTTON_MIDLEFT
#endif
#ifndef SNAKE_RIGHT
#define SNAKE_RIGHT BUTTON_MIDRIGHT
#endif
#ifndef SNAKE_UP
#define SNAKE_UP BUTTON_TOPMIDDLE
#endif
#ifndef SNAKE_DOWN
#define SNAKE_DOWN BUTTON_BOTTOMMIDDLE
#endif
#ifndef SNAKE_PLAYPAUSE
#define SNAKE_PLAYPAUSE BUTTON_CENTER
#endif
#endif
#define BOARD_WIDTH (LCD_WIDTH/4)
#define BOARD_HEIGHT (LCD_HEIGHT/4)
static int board[BOARD_WIDTH][BOARD_HEIGHT],snakelength;
static unsigned int score,hiscore=0,level=1;
static short dir,frames,apple,dead=0;
static const struct plugin_api* rb;
void die (void)
{
char pscore[17];
rb->lcd_clear_display();
rb->snprintf(pscore,sizeof(pscore),"Your score: %d",score);
rb->lcd_puts(0,0,"Oops...");
rb->lcd_puts(0,1, pscore);
if (score>hiscore) {
hiscore=score;
rb->lcd_puts(0,2,"New High Score!");
}
else {
rb->snprintf(pscore,sizeof(pscore),"High Score: %d",hiscore);
rb->lcd_puts(0,2,pscore);
}
rb->lcd_update();
rb->sleep(3*HZ);
dead=1;
}
void colission (short x, short y)
{
switch (board[x][y]) {
case 0:
break;
case -1:
snakelength+=2;
score+=level;
apple=0;
break;
default:
die();
break;
}
if (x==BOARD_WIDTH || x<0 || y==BOARD_HEIGHT || y<0)
die();
}
void move_head (short x, short y)
{
switch (dir) {
case 0:
y-=1;
break;
case 1:
x+=1;
break;
case 2:
y+=1;
break;
case 3:
x-=1;
break;
}
colission (x,y);
if (dead)
return;
board[x][y]=1;
rb->lcd_fillrect(x*4,y*4,4,4);
}
void frame (void)
{
short x,y,head=0;
for (x=0; x<BOARD_WIDTH; x++) {
for (y=0; y<BOARD_HEIGHT; y++) {
switch (board[x][y]) {
case 1:
if (!head) {
move_head(x,y);
if (dead)
return;
board[x][y]++;
head=1;
}
break;
case 0:
break;
case -1:
break;
default:
if (board[x][y]==snakelength) {
board[x][y]=0;
rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
rb->lcd_fillrect(x*4,y*4,4,4);
rb->lcd_set_drawmode(DRMODE_SOLID);
}
else
board[x][y]++;
break;
}
}
}
rb->lcd_update();
}
void redraw (void)
{
short x,y;
rb->lcd_clear_display();
for (x=0; x<BOARD_WIDTH; x++) {
for (y=0; y<BOARD_HEIGHT; y++) {
switch (board[x][y]) {
case -1:
rb->lcd_fillrect((x*4)+1,y*4,2,4);
rb->lcd_fillrect(x*4,(y*4)+1,4,2);
break;
case 0:
break;
default:
rb->lcd_fillrect(x*4,y*4,4,4);
break;
}
}
}
rb->lcd_update();
}
void game_pause (void) {
int button;
rb->lcd_clear_display();
rb->lcd_putsxy(3,12,"Game Paused");
#if CONFIG_KEYPAD == RECORDER_PAD
rb->lcd_putsxy(3,22,"[Play] to resume");
#elif CONFIG_KEYPAD == ONDIO_PAD
rb->lcd_putsxy(3,22,"[Mode] to resume");
#endif
rb->lcd_putsxy(3,32,"[Off] to quit");
rb->lcd_update();
while (1) {
button=rb->button_get(true);
switch (button) {
#ifdef SNAKE_RC_QUIT
case SNAKE_RC_QUIT:
#endif
case SNAKE_QUIT:
dead=1;
return;
case SNAKE_PLAYPAUSE:
redraw();
rb->sleep(HZ/2);
return;
default:
if (rb->default_event_handler(button)==SYS_USB_CONNECTED) {
dead=2;
return;
}
break;
}
}
}
void game (void) {
int button;
short x,y;
while (1) {
frame();
if (dead)
return;
frames++;
if (frames==10) {
frames=0;
if (!apple) {
do {
x=rb->rand() % BOARD_WIDTH;
y=rb->rand() % BOARD_HEIGHT;
} while (board[x][y]);
apple=1;
board[x][y]=-1;
rb->lcd_fillrect((x*4)+1,y*4,2,4);
rb->lcd_fillrect(x*4,(y*4)+1,4,2);
}
}
rb->sleep(HZ/level);
button=rb->button_get(false);
#ifdef HAS_BUTTON_HOLD
if (rb->button_hold())
button = SNAKE_PLAYPAUSE;
#endif
switch (button) {
case SNAKE_UP:
if (dir!=2) dir=0;
break;
case SNAKE_RIGHT:
if (dir!=3) dir=1;
break;
case SNAKE_DOWN:
if (dir!=0) dir=2;
break;
case SNAKE_LEFT:
if (dir!=1) dir=3;
break;
#ifdef SNAKE_RC_QUIT
case SNAKE_RC_QUIT:
#endif
case SNAKE_QUIT:
dead=1;
return;
case SNAKE_PLAYPAUSE:
game_pause();
break;
default:
if (rb->default_event_handler(button)==SYS_USB_CONNECTED) {
dead=2;
return;
}
break;
}
}
}
void game_init(void) {
int selection=0;
short x,y;
bool menu_quit = false;
for (x=0; x<BOARD_WIDTH; x++) {
for (y=0; y<BOARD_HEIGHT; y++) {
board[x][y]=0;
}
}
dead=0;
apple=0;
snakelength=4;
score=0;
board[11][7]=1;
MENUITEM_STRINGLIST(menu,"Snake Menu",NULL,"Start New Game","Starting Level",
"Quit");
while (!menu_quit) {
switch(rb->do_menu(&menu, &selection, NULL, false))
{
case 0:
menu_quit = true; /* start playing */
break;
case 1:
rb->set_int("Starting Level", "", UNIT_INT, &level, NULL,
1, 1, 9, NULL );
break;
default:
dead=1; /* quit program */
menu_quit = true;
break;
}
}
}
enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter)
{
(void)(parameter);
rb = api;
game_init();
rb->lcd_clear_display();
game();
return (dead==1)?PLUGIN_OK:PLUGIN_USB_CONNECTED;
}
#endif
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