MBF

MBF (Marine's Best Friend) is a source port created by Lee Killough after he left the Boom team. It is regarded by some as Boom's successor. As with Boom, MBF was limited to running under MS-DOS.

MBF adds several features:

• Friendly monsters, including single-player helper dogs.
• Bug fixes, such as a fix for the blockmap limit (MBF includes an internal blockmap builder).
• A "beta" mode, in which MBF emulates the behaviour of press release beta version of Doom. This includes the version of the BFG9000 included in the beta.
• Higher-resolution 640x400 screen mode.
• A means to change the level's sky texture (Linedef action 271).
• Several new Dehacked thing flags (TOUCHY, BOUNCES, FRIEND) and action functions with parameters (e.g. Spawn, PlaySound, RandomJump).

MBF was originally licensed under the non-free Doom Source License, but Killough has since relicensed his work under the GNU GPL.

MBF formed the basis of the SMMU port by Simon Howard. In 2004 it was ported to Windows with the name WinMBF by Team Eternity.

Bugs

Due to changes in the collision detection algorithms, a respawned or resurrected monster can sometimes become "glued" to another monster or to a wall. This bug propagated into later ports which used the MBF source, such as PrBoom.

See also

• Artica series -- PWADs that utilise the MBF "friendly" bit

External links

• Download MBF at Doomworld/idgames
• Download MBF source code at Doomworld/idgames
• Download WinMBF 2.03 Build 2 at Doomworld/idgames
• Download WinMBF 2.03 source code at Doomworld/idgames

Source code genealogy
Based on Boom	MBF	Base for CDoom v2.05
		Base for Fusion
		Base for JDP
		Base for SMMU
		Base for WinMBF