help with script

[mccrazy5]

////////////////////////////
// Run first time starting map
void OnStart()
{
AddUseItemCallback("", "hammer", "block", "breakwood", true);
AddEntityCollideCallback("Player", "bookarea", "bookscare", true, 1);

}

void breakwood (string &in asItem, string &in asEntity)
{
SetEntityActive("block",false);
PlaySoundAtEntity("", "break_wood", "mansion_1", 0, false);
GiveSanityBoost();
RemoveItem(asItem);

void bookscare(string &in asParent, string &in asChild, int alState)
{
AddPropForce("book1", 31, 1, -19.25, "world");
SetEntityActive("light1",true);
SetEntityActive("light2",true);
SetEntityActive("mb_window_1",false);
SetEntityActive("mb_window_noglass_1",true);
SetEntityActive("rain",false);
PlaySoundAtEntity("", "break_glass_large", "mb_window_noglass_1", 0, false);
}


////////////////////////////
// Run when entering map
void OnEnter()
{

}

////////////////////////////
// Run when leaving map
void OnLeave()
{
}