Birth of the Federation

At position 4491D0 there's a subroutine which removes a ship from the game. It's used for various instances of destruction or consumption of ships.

It is NOT used for ships which are destroyed as a result of battle, scrapped, destroyed by an intel attack or annihilated because of entering a one-way wormhole.


Subroutine 4491D0 is called from eight locations, depending on the cause of the ship removal:

• 45E019: unknown.
• 46828F: removal of 1 troop transport from a task force after a succesful invasion. Also used for removal of all troop transports from a task force after a failed invasion attempt. The ship role "troop transport" (0x09) is stored at position 46827F and can be changed to affect a different ship role instead. If no ship with the respective role is present, then no ship is removed.
• 4686BF: destruction by orbital battery fire. Removing this call makes OBs unable to destroy any ships.
• 468774: unknown.
• 468D0F: removal of 1 troop transport from a task force after the completion of an outpost or a starbase. At position 468C55 the role "troop transport" is stored to determine which kind of ship can add production points to outpost/starbase construction.
• 469CD2: removal of 1 colony ship from a task force when colonising a system.
• 46BD1D: destruction by a neutron star.
• 46BF3A: destruction by a black hole.

There's also a switch table which seems to determine the likelihood of a ship with a certain role being destroyed by a black hole. The switch table starts at position 46BDE0, and the values read as follows: Remember that only ships with a speed of 1 can be destroyed by black holes.

45E019 , 468774

Could either of these values be responsible for the destruction or theft of a ship via sabotage?

Just an idea.

And the other one could be destruction by a one way wormhole.

Nice find, Gowron!

Ah, Gowron's pointed out at the top of his post that he's ruled out both the Intel and the one way wormhole already