Vorlage

/*
	Snake, Console Game TEMPLATE!
	
	Linux-System required!

	@author: www.c-howto.de
*/

#include<stdio.h>
#include<termio.h>
#define BLANK 0
#define HEAD 1
#define TAIL 2
#define FOOD 9
#define KEY_MOVE_UP 119
#define KEY_MOVE_LEFT 97
#define KEY_MOVE_DOWN 115
#define KEY_MOVE_RIGHT 100
#define WIDTH 60
#define HEIGHT 20
#define DEBUG 0

struct position {
	int x;
	int y;
} pos;

int field[WIDTH][HEIGHT];

static struct termio savemodes;
static int havemodes = 0;

int tty_break();
int tty_getchar();
int tty_fix();

void resetField();
void printField();
void setItem(int, int, int);
void move(int);


int main () {
	int key;
	resetField();

	// Startposition
	pos.x=WIDTH/2;
	pos.y=HEIGHT/2;
	setItem(pos.x, pos.y, HEAD);
	tty_break();
	
	while(key!='x') {
		printField();
		key=tty_getchar();
		move(key);
		if(DEBUG) {
			printf(" %d %c |", key);
		}
	}

	printf("\n\n");
	return 0;
}

void move(int key) {
	// zu implementieren, to implement
}

void setItem(int x, int y, int item) {
	// zu implementieren, to implement
}

void resetField() {
	// zu implementieren, to implement
}

void printField() {
	// zu implementieren, to implement
}

int tty_break() {
	struct termio modmodes;
	if(ioctl(fileno(stdin), TCGETA, &savemodes) < 0)
		return -1;
	havemodes = 1;
	modmodes = savemodes;
	modmodes.c_lflag &= ~ICANON;
	modmodes.c_cc[VMIN] = 1;
	modmodes.c_cc[VTIME] = 0;
	return ioctl(fileno(stdin), TCSETAW, &modmodes);
}

int tty_getchar() {
	return getchar();
}

int tty_fix() {
	if(!havemodes)
		return 0;
	return ioctl(fileno(stdin), TCSETAW, &savemodes);
}