SRB2 Specials Reference Document

Last updated May 27, 2008

For v1.1 Private Beta

This is the SRB2 Specials Reference Document. It is designed to be the ultimate reference for effects used in SRB2. As such, it is rather technical in areas and quite concise, and is not something a beginner with level design should be dealing with.

Thing Types

In general, thing bitsets have 4 flags and 3 digits for their height. The bitset is 0xAAAB, where AAA is the object's height above ground, and B are the Easy, Normal, Hard, and Deaf flags. To get the bitset on a normal object, multiply the height desired by 16, and then add the existant B. Some objects use 32 as this number, and they will be noted. Objects that multiply by 16 can be placed up to 4095 units in the air, while objects that multiply by 32 can be placed up to 2047 units in the air.