The Dink Network

//script where duck is created
&quack = create_sprite(289, 220, 3, 21, 1);
sp_script(&quack, "duck1");

//duck1.c script
void main(void)
{
sp_speed(&quack, 1);
sp_hitpoints(&quack, 10);
sp_base_walk(&quack, 20);

Something like this can't work unless &quack is a global... Local variables only work inside the same script where you create them. When the game switches to the duck1.c script, it has no idea who the duck &quack is supposed to be anymore. You need to use &current_sprite instead. Or you can do this:

//script where duck is created
int &quack = create_sprite(289, 220, 3, 21, 1);
sp_script(&quack, "duck1");

//duck1.c script
void main(void)
{
int &quack = &current_sprite;
sp_speed(&quack, 1);
sp_hitpoints(&quack, 10);
sp_base_walk(&quack, 20);