crashtest-r0ket/firmware/l0dable/snake.c

195 lines
4.3 KiB
C
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2011-08-11 04:23:43 +00:00
#include <sysinit.h>
#include "basic/basic.h"
#include "basic/config.h"
#include "lcd/lcd.h"
#include "lcd/print.h"
#include "usetable.h"
struct elem
{
int x,y;
};
void reset(struct elem snake[],size_t *snake_size,int *dirc,
int*speed, int*points,int*point_s);
void o_rectangle (int x0, int y0, int width, int height);
struct elem rnd(void);
#define MAX_SNAKE_LEN (40)
#define SNAKE_DEM (3)
#define MIN_SPEED (25)
#define MAX_SPEED (3)
#define SIZE_X (RESX)
#define SIZE_Y (RESY)
void ram(void)
{
int inpt,dirc,c,grows = 0,dx,dy,points,point_s=1;
size_t n = 0, snake_size = 5, speed=MIN_SPEED;
struct elem snake[MAX_SNAKE_LEN], food;
char test[512]; /* scratch space */
o_init (test, sizeof(test));
reset(snake,&snake_size,&dirc,&speed,&points,&point_s);
food = rnd();
while (1)
{
head:
if(!(++c % speed))
{
inpt = getInputRaw();
dx=DoString(0,0,IntToStrX(points,2));
dx=(SIZE_X-dx)/2;
if(dx<0)
dx=0;
dy=(SIZE_Y-getFontHeight())/2;
lcdFill(255);
o_rectangle(1,0,SIZE_X-2,SIZE_Y-2);
o_set_gray (0);
o_fill ();
//o_identity (); /* reset tranforms */
o_set_gray (50);
setExtFont("UBUNTU29");
lcdSetPixel(1,1,1);
DoString(dx,dy,IntToStrX(points,2));
o_set_gray (255);
for(n=0;n<snake_size;++n)
{
o_rectangle
(snake[n].x*SNAKE_DEM,snake[n].y*SNAKE_DEM,SNAKE_DEM,SNAKE_DEM); /*
fill background with black */
o_fill (); /* fill with 50% {
reset(snake,&snake_size);
goto head;
}gray */
}
o_rectangle
(food.x*SNAKE_DEM,food.y*SNAKE_DEM,SNAKE_DEM,SNAKE_DEM); /* fill
background with black */
o_fill ();
lcdDisplay();
if (inpt == BTN_UP && dirc != 1)
{
dirc = 3;
}
else if (inpt == BTN_DOWN && dirc != 3)
{
dirc = 1;
}
else if (inpt == BTN_LEFT && dirc != 0)
{
dirc = 2;
}
else if (inpt == BTN_RIGHT && dirc !=2)
{
dirc = 0;
}
//
struct elem t = snake[snake_size-1];
if(dirc == 0)
++t.x;
else if(dirc == 1)
++t.y;
else if(dirc == 2)
--t.x;
else if(dirc == 3)
--t.y;
if(t.x < 0 || t.y < 0 || t.y > SIZE_Y/SNAKE_DEM-1 ||
t.x > SIZE_X/SNAKE_DEM)
{
reset(snake,&snake_size,&dirc,&speed,&points,&point_s);
goto head;
}
for(n=0;n<snake_size-1;++n)
{
if(snake[n].x == t.x && snake[n].y == t.y)
{
reset(snake,&snake_size,&dirc,&speed,&points,&point_s);
goto head;
}
else if(snake[n].x == food.x && snake[n].y == food.y)
{
grows = 1;
++snake_size;
++points;
if(speed > MAX_SPEED) --speed;
food = rnd();
}
}
if(!grows)
{
for(n=0;n<snake_size-1;++n)
{
snake[n] = snake[n+1];
}
}
else
grows = 0;
snake[snake_size-1] = t;
}
else
delayms(3);
}
}
struct elem rnd(void)
{
struct elem res;
res.x = getRandom() % (SIZE_X/SNAKE_DEM-1) +1;
res.y = getRandom() % (SIZE_Y/SNAKE_DEM-1) + 1;
return res;
}
void reset(struct elem snake[],size_t *snake_size,int *dirc,
int*speed, int*points,int* point_s)
{
size_t n = 0;
for(n=0;n<MAX_SNAKE_LEN;++n)
{ snake[n].x=5;snake[n].y=5; }
*snake_size = 5;
*dirc = 0;
*speed = MIN_SPEED;
*points=0;
*point_s=1;
}
void o_rectangle (int x0, int y0, int width, int height)
{
o_path_new ();
o_move_to (x0, y0);
o_line_to (x0 + width, y0);
o_line_to (x0 + width, y0+height+1);
o_line_to (x0, y0+height+1);
o_close ();
}