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classic snake game by Itai Shaked

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2260 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Eric Linenberg 2002-09-10 15:55:37 +00:00
parent 62bec9e0d2
commit 5d33b5b68f
2 changed files with 270 additions and 2 deletions
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4
apps/games_menu.c
View file

@ -35,6 +35,7 @@
#include "sokoban.h"
#include "wormlet.h"
extern Menu tetris(void);
extern Menu snake(void);
Menu games_menu(void)
{
@ -44,7 +45,8 @@ Menu games_menu(void)
struct menu_items items[] = {
{ "Tetris", tetris },
{ "Sokoban", sokoban },
{ "Wormlet", wormlet }
{ "Wormlet", wormlet },
{ "Snake", snake }
};
m=menu_init( items, sizeof items / sizeof(struct menu_items) );

266
apps/recorder/snake.c Normal file
View file

@ -0,0 +1,266 @@
/*
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;
(i'll write more later)
*/
#include "sprintf.h"
#include "config.h"
#include "lcd.h"
#include "button.h"
#include "kernel.h"
#include "menu.h"
int board[28][16],snakelength;
unsigned int score,hiscore=0;
short dir,frames,apple,level=1,dead=0;
int rand_num (int range) {
return current_tick % range;
}
void die (void) {
char pscore[5],hscore[17];
lcd_clear_display();
snprintf(pscore,sizeof(pscore),"%d",score);
lcd_putsxy(3,12,"oops...",0);
lcd_putsxy(3,22,"Your Score :",0);
lcd_putsxy(3,32, pscore,0);
if (score>hiscore) {
hiscore=score;
lcd_putsxy(3,42,"New High Score!",0);
}
else {
snprintf(hscore,sizeof(hscore),"High Score %d",hiscore);
lcd_putsxy(3,42,hscore,0);
}
lcd_update();
sleep(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==28 || x<0 || y==16 || 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;
lcd_fillrect(x*4,y*4,4,4);
}
void frame (void) {
short x,y,head=0;
for (x=0; x<28; x++) {
for (y=0; y<16; 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;
lcd_clearrect(x*4,y*4,4,4);
}
else
board[x][y]++;
}
}
}
lcd_update();
}
void redraw (void) {
short x,y;
lcd_clear_display();
for (x=0; x<28; x++) {
for (y=0; y<16; y++) {
switch (board[x][y]) {
case -1:
lcd_fillrect((x*4)+1,y*4,2,4);
lcd_fillrect(x*4,(y*4)+1,4,2);
break;
case 0:
break;
default:
lcd_fillrect(x*4,y*4,4,4);
break;
}
}
}
lcd_update();
}
void game_pause (void) {
lcd_clear_display();
lcd_putsxy(3,12,"Game Paused",0);
lcd_putsxy(3,22,"[play] to resume",0);
lcd_putsxy(3,32,"[off] to quit",0);
lcd_update();
while (1) {
switch (button_get(true)) {
case BUTTON_OFF:
dead=1;
return;
case BUTTON_PLAY:
redraw();
sleep(HZ/2);
return;
}
}
}
void game (void) {
short x,y;
while (1) {
frame();
if (dead) return;
frames++;
if (frames==10) {
frames=0;
if (!apple) {
do {
x=rand_num(28);
y=rand_num(16);
} while (board[x][y]);
apple=1;
board[x][y]=-1;
lcd_fillrect((x*4)+1,y*4,2,4);
lcd_fillrect(x*4,(y*4)+1,4,2);
}
}
sleep(HZ/level);
switch (button_get(false)) {
case BUTTON_UP:
if (dir!=2) dir=0;
break;
case BUTTON_RIGHT:
if (dir!=3) dir=1;
break;
case BUTTON_DOWN:
if (dir!=0) dir=2;
break;
case BUTTON_LEFT:
if (dir!=1) dir=3;
break;
case BUTTON_OFF:
dead=1;
return;
case BUTTON_PLAY:
game_pause();
break;
}
}
}
void game_init(void) {
short x,y;
char plevel[10],phscore[20];
for (x=0; x<28; x++) {
for (y=0; y<16; y++) {
board[x][y]=0;
}
}
dead=0;
apple=0;
snakelength=4;
score=0;
board[11][7]=1;
lcd_clear_display();
snprintf(plevel,sizeof(plevel),"Level - %d",level);
snprintf(phscore,sizeof(phscore),"High Score - %d",hiscore);
lcd_putsxy(3,2, plevel,0);
lcd_putsxy(3,12, "(1 - slow, 9 - fast)",0);
lcd_putsxy(3,22, "[off] to quit",0);
lcd_putsxy(3,32, "[play] to start/pause",0);
lcd_putsxy(3,42, phscore,0);
lcd_update();
while (1) {
switch (button_get(true)) {
case BUTTON_RIGHT:
case BUTTON_UP:
if (level<9)
level++;
break;
case BUTTON_LEFT:
case BUTTON_DOWN:
if (level>1)
level--;
break;
case BUTTON_OFF:
dead=1;
return;
break;
case BUTTON_PLAY:
return;
break;
}
snprintf(plevel,sizeof(plevel),"Level - %d",level);
lcd_putsxy(3,2, plevel,0);
lcd_update();
}
}
Menu snake(void) {
game_init();
lcd_clear_display();
game();
return MENU_OK;
}