Move noodle correctly when the node it's connected to moves

include/nodes.h

@@ -8,6 +8,7 @@
 #define IO_INPUT_COUNT 0
 #define OP_INPUT_COUNT 2
 #define EMPTY_NODE 0
+#define NODE_START 1
 
 typedef i32 (*node_func)(i32 a, i32 b);
 typedef enum node_type node_type;