This was requested by multiple people in this topic. It's an alternative to the the old "lockeddungeon" script, though this isn't compatible with the old version.
Basically, this mimics the behavior of the GB Zelda games were oftentimes you'd have to get a special key to open up certain dungeons. Essentially, the player can only open it when Link has any item of your choosing.
Note: You can only trigger the dungeon entrance from below.
Screenshots and Demo
Just the screen I was using to test around (ignore the top fence entrance).
Code
ItemLockBlock Code
// This mimics a GB Locked Dungeon, which only opens when the player has a special item
// d0 = The combo of the lock block
// d1 = The item required to open the lock block
// d2 = The message that is displayed if you do not have the lock block
// d3 = The sound effect played when opening the lock block
// d4 = Set to 1 if you want the item to be removed from Link's inventory
ffc script LockedDungeonEntrance
{
void run(int dgnlock, int key, int msg, int sfx, int removeItem)
{
int loc = ComboAt(this->X+8, this->Y+8);
int numKeys = -1;
// If lockblocks haven't been activated yet
if(!Screen->State[ST_LOCKBLOCK])
{
// This basically monitors to make sure the user pushes against the lock block a few moments before unlocking it
int pressDelay = 0;
while(true)
{
// If Link is pushing up against the lock block
if(ComboAt(Link->X+8, Link->Y+7) == loc && Screen->ComboD[loc] == dgnlock && Link->InputUp)
{
pressDelay++;
// If they have waited enough time
if(pressDelay >= 5)
{
// If they have a key, unlock it
if(Link->Item[key])
{
Screen->State[ST_LOCKBLOCK] = true;
Game->SetComboData(Game->GetCurMap(), Game->GetCurScreen(), loc, Screen->ComboD[loc]+1);
if(sfx == 0)
Game->PlaySound(SFX_SHUTTER);
else
Game->PlaySound(sfx);
if(removeItem)
Link->Item[key] = false;
break;
}
// Otherwise display an error message
else if(msg > 0)
{
pressDelay = -5;
Screen->Message(msg);
}
}
}
else
pressDelay = 0;
// Trigger this lock block if other lock blocks have been opened
if(Screen->State[ST_LOCKBLOCK])
{
Game->SetComboData(Game->GetCurMap(), Game->GetCurScreen(), loc, Screen->ComboD[loc]+1);
break;
}
Waitframe();
} //! End of while(true)
} //! End of if(!Screen->State[ST_LOCKBLOCK])
// Else lock blocks were already activated, so change the combo if needed
else if(Screen->ComboD[loc] == dgnlock)
Game->SetComboData(Game->GetCurMap(), Game->GetCurScreen(), loc, Screen->ComboD[loc]+1);
} //! End of void run(int dgnlock, int key, int msg, int sfx)
} //! End of ffc script LockedDungeonEntrance
Setup
1. Create two combos for the dungeon entrance. The locked combo, then the open combo to its right (like you would setup a locked block). Do not set the locked version to a "lock block" combo type! 2. Put this FFC over the locked combo on the screen with this script attached, and the following variables set:
d0: The combo number of the locked combo d1: The item required to open the lock block d2: The message that is displayed if you do not have a lock block (leave as 0 if not desired) d3: The sound effect played when opening the lock block (leave as 0 to use the shutter SFX) d4: Set as 1 if you want the item to be removed from Link's inventory
3. If you wish the change to span across multiple combos, follow steps 1 & 2 for all other combos on the screen. If one of these is setup and triggered, they are all simultaneously triggered.
Note: Do not have a normal lock block on the screen!
This topic is locked
Your such a great programmer. 
