Some fixes

- Now every frame is cleared
- Fix collision with self

src/main.c

@@ -28,7 +28,7 @@ Food generateFood(Player *player)
 
 void resetCoordinates(void)
 {
-    printf("\033[0;0H");
+    printf("\e[1;1H\e[2J");
 }
 
 int main(int argc, char **argv)

src/player.c

@@ -36,7 +36,7 @@ bool playerCheckSelfCollision(Player *player)
     PlayerNode *nodei, *nodej;
     for (nodei = player->tail; nodei != NULL; nodei = nodei->next)
         for (nodej = nodei->next; nodej != NULL; nodej = nodej->next)
-            if (nodei->x == nodej->x && nodei->y == nodej->x)
+            if (nodei->x == nodej->x && nodei->y == nodej->y)
                 return true;
     return false;
 }