refresh

du5/snake.c

@@ -38,6 +38,20 @@ struct snake* remove_snake(struct snake* snake) {
         free(previous->next);
         previous->next = NULL;
     }
+
+    return snake;
+}
+
+int is_snake(struct snake* snake, int x, int y) {
+    struct snake* current = snake;
+
+    while () {
+        if ((current->x==x) && (current->y==y)) {
+            return 1;
+        }
+        current = current->next;
+    }
+    return 0;
 }