forked from len0rd/rockbox
Snake is back! Written by Itai Shaked.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3802 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Björn Stenberg
parent
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commit
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1 changed files with 289 additions and 0 deletions
289
apps/plugins/snake.c
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289
apps/plugins/snake.c
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Itai Shaked
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/*
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Snake!
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by Itai Shaked
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ok, a little explanation -
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board holds the snake and apple position - 1+ - snake body (the number
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represents the age [1 is the snake's head]).
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-1 is an apple, and 0 is a clear spot.
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dir is the current direction of the snake - 0=up, 1=right, 2=down, 3=left;
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*/
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#include "plugin.h"
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#ifdef HAVE_LCD_BITMAP
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static int board[28][16],snakelength;
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static unsigned int score,hiscore=0;
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static short dir,frames,apple,level=1,dead=0;
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static struct plugin_api* rb;
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void die (void)
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{
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char pscore[5],hscore[17];
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rb->lcd_clear_display();
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rb->snprintf(pscore,sizeof(pscore),"%d",score);
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rb->lcd_putsxy(3,12,"oops...");
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rb->lcd_putsxy(3,22,"Your score :");
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rb->lcd_putsxy(3,32, pscore);
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if (score>hiscore) {
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hiscore=score;
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rb->lcd_putsxy(3,42,"New High Score!");
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}
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else {
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rb->snprintf(hscore,sizeof(hscore),"High Score: %d",hiscore);
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rb->lcd_putsxy(3,42,hscore);
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}
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rb->lcd_update();
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rb->sleep(3*HZ);
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dead=1;
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}
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void colission (short x, short y)
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{
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switch (board[x][y]) {
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case 0:
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break;
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case -1:
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snakelength+=2;
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score+=level;
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apple=0;
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break;
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default:
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die();
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break;
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}
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if (x==28 || x<0 || y==16 || y<0)
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die();
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}
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void move_head (short x, short y)
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{
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switch (dir) {
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case 0:
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y-=1;
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break;
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case 1:
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x+=1;
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break;
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case 2:
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y+=1;
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break;
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case 3:
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x-=1;
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break;
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}
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colission (x,y);
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if (dead)
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return;
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board[x][y]=1;
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rb->lcd_fillrect(x*4,y*4,4,4);
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}
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void frame (void)
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{
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short x,y,head=0;
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for (x=0; x<28; x++) {
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for (y=0; y<16; y++) {
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switch (board[x][y]) {
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case 1:
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if (!head) {
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move_head(x,y);
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if (dead)
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return;
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board[x][y]++;
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head=1;
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}
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break;
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case 0:
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break;
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case -1:
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break;
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default:
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if (board[x][y]==snakelength) {
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board[x][y]=0;
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rb->lcd_clearrect(x*4,y*4,4,4);
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}
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else
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board[x][y]++;
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break;
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}
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}
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}
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rb->lcd_update();
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}
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void redraw (void)
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{
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short x,y;
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rb->lcd_clear_display();
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for (x=0; x<28; x++) {
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for (y=0; y<16; y++) {
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switch (board[x][y]) {
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case -1:
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rb->lcd_fillrect((x*4)+1,y*4,2,4);
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rb->lcd_fillrect(x*4,(y*4)+1,4,2);
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break;
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case 0:
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break;
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default:
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rb->lcd_fillrect(x*4,y*4,4,4);
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break;
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}
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}
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}
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rb->lcd_update();
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}
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void game_pause (void) {
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rb->lcd_clear_display();
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rb->lcd_putsxy(3,12,"Game Paused");
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rb->lcd_putsxy(3,22,"[Play] to resume");
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rb->lcd_putsxy(3,32,"[Off] to quit");
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rb->lcd_update();
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while (1) {
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switch (rb->button_get(true)) {
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case BUTTON_OFF:
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dead=1;
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return;
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case BUTTON_PLAY:
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redraw();
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rb->sleep(HZ/2);
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return;
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}
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}
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}
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void game (void) {
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short x,y;
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while (1) {
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frame();
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if (dead)
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return;
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frames++;
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if (frames==10) {
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frames=0;
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if (!apple) {
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do {
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x=rb->rand() % 28;
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y=rb->rand() % 16;
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} while (board[x][y]);
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apple=1;
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board[x][y]=-1;
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rb->lcd_fillrect((x*4)+1,y*4,2,4);
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rb->lcd_fillrect(x*4,(y*4)+1,4,2);
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}
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}
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rb->sleep(HZ/level);
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switch (rb->button_get(false)) {
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case BUTTON_UP:
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if (dir!=2) dir=0;
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break;
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case BUTTON_RIGHT:
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if (dir!=3) dir=1;
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break;
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case BUTTON_DOWN:
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if (dir!=0) dir=2;
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break;
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case BUTTON_LEFT:
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if (dir!=1) dir=3;
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break;
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case BUTTON_OFF:
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dead=1;
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return;
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case BUTTON_PLAY:
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game_pause();
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break;
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}
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}
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}
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void game_init(void) {
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short x,y;
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char plevel[10],phscore[20];
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for (x=0; x<28; x++) {
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for (y=0; y<16; y++) {
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board[x][y]=0;
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}
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}
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dead=0;
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apple=0;
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snakelength=4;
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score=0;
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board[11][7]=1;
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rb->lcd_clear_display();
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rb->snprintf(plevel,sizeof(plevel),"Level - %d",level);
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rb->snprintf(phscore,sizeof(phscore),"High Score: %d",hiscore);
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rb->lcd_putsxy(3,2, plevel);
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rb->lcd_putsxy(3,12, "(1 - slow, 9 - fast)");
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rb->lcd_putsxy(3,22, "[Off] to quit");
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rb->lcd_putsxy(3,32, "[Play] to start/pause");
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rb->lcd_putsxy(3,42, phscore);
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rb->lcd_update();
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while (1) {
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switch (rb->button_get(true)) {
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case BUTTON_RIGHT:
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case BUTTON_UP:
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if (level<9)
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level++;
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break;
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case BUTTON_LEFT:
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case BUTTON_DOWN:
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if (level>1)
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level--;
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break;
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case BUTTON_OFF:
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dead=1;
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return;
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break;
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case BUTTON_PLAY:
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return;
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break;
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}
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rb->snprintf(plevel,sizeof(plevel),"Level - %d",level);
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rb->lcd_putsxy(3,2, plevel);
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rb->lcd_update();
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}
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}
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enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
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{
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TEST_PLUGIN_API(api);
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(void)(parameter);
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rb = api;
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game_init();
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rb->lcd_clear_display();
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game();
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return false;
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}
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#endif
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