Help

[TheDanny942]

I need some help with my .hps file. I need to know how to separate multiple scripts (I'm an amateur I know). It keeps giving me an error message that says there was an unexpected token {. Here is my script file, and I thank you so much in advance for helping a amateur out.
////////////////////////////
// Run first time starting map
void OnStart()
{
AddUseItemCallback("", "BasementDoorKey", "BasementDoor", "UsedKeyOnDoor", true);
}

void UsedKeyOnDoor(string &in asItem, string &in asEntity)
{
SetSwingDoorLocked("BasementDoor", false, true);
PlaySoundAtEntity("", "unlock_door", "BasementDoor", 0, false);
RemoveItem("BasementDoorKey");
}
{
AddEntityCollideCallback("Player", "Scary", "CollideScary", true, 1);
}

void CollideScary(string &in asParent, string &in asChild, int alState)
{
SetSwingDoorClosed("ScareDoor", true, true);
}

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

}

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

}