Another TGS DMAPI update (tgstation#40470)

Wew it's almost like i'm testmerging these PRs to get it working

code/__DEFINES/tgs.config.dm

@@ -1,4 +1,5 @@
 #define TGS_EXTERNAL_CONFIGURATION
+#define TGS_V3_API
 #define TGS_DEFINE_AND_SET_GLOBAL(Name, Value) GLOBAL_VAR_INIT(##Name, ##Value); GLOBAL_PROTECT(##Name)
 #define TGS_READ_GLOBAL(Name) GLOB.##Name
 #define TGS_WRITE_GLOBAL(Name, Value) GLOB.##Name = ##Value

code/__DEFINES/tgs.dm

@@ -7,6 +7,10 @@
 //create this define if you want to do configuration outside of this file
 #ifndef TGS_EXTERNAL_CONFIGURATION
 
+//Uncomment this if you wish to allow the game to interact with TGS 3
+//This will raise the minimum required security level of your game to TGS_SECURITY_TRUSTED due to it utilizing call()()
+//#define TGS_V3_API
+
 //Comment this out once you've filled in the below
 #error TGS API unconfigured
 

code/modules/tgs/core/core.dm

@@ -4,6 +4,10 @@
 		TGS_ERROR_LOG("TgsNew(): TGS API datum already set ([current_api])!")
 		return
 
+#ifdef TGS_V3_API
+	minimum_required_security_level = TGS_SECURITY_TRUSTED
+#endif
+
 	var/tgs_version = world.params[TGS_VERSION_PARAMETER]
 	if(!tgs_version)
 		return
@@ -18,7 +22,7 @@
 
 	TGS_WRITE_GLOBAL(tgs, new_api)
 
-	var/result = new_api.OnWorldNew(event_handler ? event_handler : new /datum/tgs_event_handler/tgs_default, minimum_required_security_level)
+	var/result = new_api.OnWorldNew(event_handler, minimum_required_security_level)
 	if(!result || result == TGS_UNIMPLEMENTED)
 		TGS_WRITE_GLOBAL(tgs, null)
 		TGS_ERROR_LOG("Failed to activate API!")
@@ -36,9 +40,13 @@
 
 	switch(super)
 		if(3)
+#ifndef TGS_V3_API
+			TGS_ERROR_LOG("Detected V3 API but TGS_V3_API isn't defined!")
+#else
 			switch(major)
 				if(2)
 					return /datum/tgs_api/v3210
+#endif
 		if(4)
 			switch(major)
 				if(0)

code/modules/tgs/includes.dm

@@ -1,8 +1,9 @@
 #include "core\_definitions.dm"
 #include "core\core.dm"
 #include "core\datum.dm"
-#include "core\default_event_handler.dm"
+#ifdef TGS_V3_API
 #include "v3210\api.dm"
 #include "v3210\commands.dm"
+#endif
 #include "v4\api.dm"
 #include "v4\commands.dm"