To add tunable parameters to fbmuck: 1) Define what you want the tunable parameter to do, and how best to accomplish it. (If it's a yes/no behavior, a bool would be your best bet, for example.) 2) In include/defaults.h, add an all-caps define that's named something related to your tunable parameter. The rule of thumb is, unless it's a security fix, MAKE THE DEFAULT BE BACKWARD-COMPATIBLE. 3) In include/tune.h, add an entry for the variable name you're going to use. The standard is 'tp_', followed by the name of the tunable parameter. There are some exceptions in the current codebase, but that's the standard for new tunables. This file uses 'extern tp_;' as its syntax, as it's included in every file. 4) In src/tune.c, add a definition for 'const tp_ = ;'. This initializes the variable so that people loading previous-versioned parameter files will still get The Right Behavior. 5) Also in src/tune.c, look at the definitions for tune_*_entry and tune_*_list. "group" is a string related to the type of parameter it's tuning. "name" is the name of the parameter, as displayed to the wizard typing @tune. The next parameter is dependent on the type: str, tim, val, [typ/dbref], bool. It's the address of the variable to store this parameter in. "security" is the minimum mlev for a program to see it -- only wizards can change it, in any case. "label" is the descriptive text for the parameter. Add your tunable parameter in the tune_*_list that is appropriate for its type, and don't forget to do the &tp_ syntax for the variable (to give it its pointer, not its value). 6) In whatever area you're modifying, do an if(tp_){} around the block of changed behavior, if it's a bool... or a snprintf(string,"%s",tp_) if it's a string, or whatever you need to in order to make use of the new @tune. 7) Test that your modifications don't change the prior behavior when the tune is disabled, and test that your modifications do what you want them to when the tune is enabled (in the event of a bool @tune). And that's it! Happy @tuning! -winged 28Aug2003