#World of warcraft default ui mods
#World of warcraft default ui code

If you can call the original function as your last step, this is easy to deal with: If the number of return values from the function increases, your addon will likely cause erros. There is actually a slight problem with the above example. If parameters are added to the function, your addon will safely ignore them while still passing them along. )Д®ven if the function only takes two parameters, you should always use the vararg (.). Local blah, baz, rofl = OrigFunc(foo, bar. When you do, remember to pass all parameters and return all results. However, there are occasional cases where 'traditional' hooking must be used. Even when it is necessary, most of the time hooksecurefunc is sufficient. You should do your best to write your addon in such a way that you don't need to hook functions. There are other approaches as well, but this is by far the simplest. These problems are easily solved by declaring functions and variables local.

#World of warcraft default ui code

If you accidentally use the name of some variable that blizzard code uses (e.g. If two addons define print functions that work in slightly different ways, one of the addons isn't going to be too happy when it tries to use its own. The effects are usually much more noticeable. Naming conflicts are sometimes a more pressing concern. In code where performance is important (for instance an OnUpdate handler), it's often beneficial to create a local alias to a global function: Local variables, on the other hand, are stored on a stack. Whenever a global is accessed, Lua has to call the internal equivalent of getfenv() to figure out where to retrieve the global from. Globals are inefficient to access compared to locals. However, globals come at a cost of both performance, and naming conflicts. Many times, the use of global variables is necessary: saved variables are created via the global environment all API functions and UI frames are in the global namespace. One stumbling block for Lua programmers coming from other languages is the fact that all variables are global unless specified otherwise. They are offered to help you write safer and more efficient code, and are applicable to non-WoW scripts as well. These tips relate to Lua scripting in general. The techniques gathering on this page will help help addon authors, experienced and otherwise, make the most out of WoW's environment safely and efficiently. This can lead to poorly written programs as measured by performance, memory usage, interference with other addons and the default UI, etc. There are idiosyncrasies in both the Lua language and the World of Warcraft API that many authors overlook. While this has greatly benefited the WoW community, it does have a dark side.

#World of warcraft default ui mods

With the low barrier to entry, writing mods has become very popular.