Difference between revisions of "Porting to Left 4 Dead"
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As there is no official SDK yet, we've simply reverse engineered the new header files. These changes aren't guaranteed to be 100% correct and the SDK isn't complete for building mods -- just most plugins. | As there is no official SDK yet, we've simply reverse engineered the new header files. These changes aren't guaranteed to be 100% correct and the SDK isn't complete for building mods -- just most plugins. | ||
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| + | =Changes= | ||
| + | *<tt>IVEngineServer::UserMessageBegin</tt> now takes an additional string parameter containing the message name. | ||
| + | *The low-level datagram type for setting convars has changed from 5 to 6. | ||
| + | *<tt>CreateEntityByName</tt> appears to have a third parameter (SourceMod sets it to true). | ||
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=Removals= | =Removals= | ||
| + | ==IVEngineServer Functions== | ||
The <tt>IVEngineServer</tt> functions <tt>PEntityOfEntIndex</tt> and <tt>IndexOfEdict</tt> have been removed for faster code that can be inlined. An example of how to re-implement this (as Valve has not released a new SDK yet): | The <tt>IVEngineServer</tt> functions <tt>PEntityOfEntIndex</tt> and <tt>IndexOfEdict</tt> have been removed for faster code that can be inlined. An example of how to re-implement this (as Valve has not released a new SDK yet): | ||
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} | } | ||
</cpp> | </cpp> | ||
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| + | ==ICVar functions== | ||
| + | The function <tt>GetCommands</tt> has been removed. Use <tt>FindCommand</tt> instead. | ||
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Revision as of 01:44, 26 November 2008
Porting Valve Server Plugins or Metamod:Source plugins to Left 4 Dead is not very difficult. This article explores some of the changes and how to simplify them.
Users of Metamod:Source must upgrade to Metamod:Source 1.7 and use the 1.6+ API (see MM:S API Differences).
As there is no official SDK yet, we've simply reverse engineered the new header files. These changes aren't guaranteed to be 100% correct and the SDK isn't complete for building mods -- just most plugins.
Changes
- IVEngineServer::UserMessageBegin now takes an additional string parameter containing the message name.
- The low-level datagram type for setting convars has changed from 5 to 6.
- CreateEntityByName appears to have a third parameter (SourceMod sets it to true).
Removals
IVEngineServer Functions
The IVEngineServer functions PEntityOfEntIndex and IndexOfEdict have been removed for faster code that can be inlined. An example of how to re-implement this (as Valve has not released a new SDK yet):
inline int IndexOfEdict(const edict_t *pEdict) { return (int)(pEdict - gpGlobals->baseEdict); } inline edict_t *PEntityOfEntIndex(int iEntIndex) { if (iEntIndex >= 0 && iEntIndex < gpGlobals->maxEntities) { return (edict_t *)(gpGlobals->baseEdict + iEntIndex); } return NULL; }
ICVar functions
The function GetCommands has been removed. Use FindCommand instead.
Annoyances
The console will spew "VPK" warnings unless your file-backed KeyValues operations use relative paths instead of absolute paths.
