This code only....
this is in soccerjam (ballholder)..
the problem is in holding,it can be fixed with oldbuttons,but i dont know how to make with !usekey and ballholder
public Player_Jump(id)
{
new button = entity_get_int(id, EV_INT_button)
new usekey = (button & IN_USE)
if(!usekey && id == ballholder)
client_print(0,print_chat,"TEST")