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--- engine_info [2019/04/21 21:13] – created korshun
+++ engine_info [2019/08/26 01:13] (current) – removed korshun
@@ Line 1: / Line 1: @@
-====== Engine information ======
-ACSUtils provides functions to identify the exact source port (ZDoom, GZDoom, Zandronum) and renderer (software, OpenGL).
-===== Identifying source port =====
-==== Detection methods ====
-The detection module first checks for presence of [[zan>GetPlayerAccountName]], which is a Zandronum-exclusive function. It returns a string (usually an empty string) if it exists, while unimplemented ACS functions return 0. If the function is present, the port is assumed to be Zandronum.
-If the port is not Zandronum, the detection module attempts to spawn an actor of type [[zdoom>Classes:DynamicLight|DynamicLight]], which is present in GZDoom, but not in ZDoom. If the actor spawns successfully, the port is assumed to be GZDoom.
-If both these checks fail, the port is assumed to be ZDoom.
-==== Caching ====
-The above checks are not rerun every time the source port is queried. After identification, the type of the source port is saved into a map variable. Subsequent queries simply return the value of that variable.
-==== IdentifySourcePort ====
-''int IdentifySourcePort()''
-Identifies the engine that the mod is running in and returns one of the following constants:
-  * ''PORT_ZDOOM'' -- ZDoom
-  * ''PORT_GZDOOM'' -- GZDoom
-  * ''PORT_ZANDRONUM'' -- Zandronum
-==== IsGZDoom ====
-''bool IsGZDoom()''
-Returns true if the port is GZDoom or a derivative.
-<note important>This function returns true for Zandronum, since Zandronum is a derivative of GZDoom and includes its OpenGL renderer.</note>
-<note tip>If you want to check for OpenGL renderer, don't use this function. Use ''IsOpenGL''.</note>
-==== IsZandronum ====
-''bool IsZandronum()''
-Returns true if the port is Zandronum or a derivative.

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