HOTFIX: Fix L4D2 2.0.0.0 crashingv0.3-HOTFIX

Idiotic problems require idiotic solutions.

5 files changed, 19 insertions, 11 deletions

diff --git a/gamedata/engine.kv b/gamedata/engine.kv
index 8ee8161..414a584 100644
--- a/gamedata/engine.kv
+++ b/gamedata/engine.kv
@@ -18,7 +18,11 @@ vtidx_GetGameDirectory {
 	}
 	Client012 37 // dmomm, ep1, ...
 }
-vtidx_GetEngineBuildNumber { L4D2 99 }
+// TODO(compat): apparently this changed, in early versions it's NOT 99!
+// Come up with some way to detect it properly!?
+vtidx_GetEngineBuildNumber {
+	//L4D2 99
+}
 vtidx_PEntityOfEntIndex { OrangeBox 19 } // probably OE too but???
 
 sz_edict {
diff --git a/gamedata/gamelib.kv b/gamedata/gamelib.kv
index e7a4302..7db228f 100644
--- a/gamedata/gamelib.kv
+++ b/gamedata/gamelib.kv
@@ -26,9 +26,7 @@ vtidx_Teleport {
 	L4D "104 + NVDTOR"
 	L4D2 {
 		default "116 + NVDTOR" // TODO(linux): might actually be 119!?!?
-		// TODO(compat): would like to be able to specify this here.
-		// see also engineapi.c
-		//TLS "117 + NVDTOR"
+		TheLastStand "117 + NVDTOR" // I dunno why JAiZ changed this
 	}
 }
 
diff --git a/src/engineapi.c b/src/engineapi.c
index 6ba178f..5113883 100644
--- a/src/engineapi.c
+++ b/src/engineapi.c
@@ -22,7 +22,11 @@
 #include "gametype.h"
 #include "intdefs.h"
 #include "mem.h" // "
+#include "os.h"
 #include "vcall.h"
+#include "x86.h"
+
+#include "con_.h"
 
 u64 _gametype_tag = 0; // declared in gametype.h but seems sensible enough here
 
@@ -73,18 +77,17 @@ void engineapi_init(void) {
 		_gametype_tag |= _gametype_tag_SrvDLL005;
 	}
 
+	// TERRIBLE HACK: TODO(compat): come up with a better method later
+	if (GAMETYPE_MATCHES(L4D2) && os_access(OS_LIT(
+			"update/maps/c14m1_junkyard.bsp"), R_OK) != -1) {
+		_gametype_tag |= _gametype_tag_TheLastStand;
+	}
+
 	// need to do this now; ServerClass network table iteration requires
 	// SendProp offsets
 	gamedata_init();
 
 	// TODO(compat): we need this terrible hack for now because TLS somehow
-	// changed the entity vtable layout and I've yet to think of a way to make
-	// gamedata more flexible to handle that properly. I blame JAiZ.
-	if (engclient && has_vtidx_GetEngineBuildNumber &&
-			VCALL(engclient, GetEngineBuildNumber) >= 2200) {
-		++vtidx_Teleport;
-	}
-
 	if (has_vtidx_GetAllServerClasses && has_sz_SendProp &&
 			has_off_SP_varname && has_off_SP_offset) {
 		initentprops(VCALL(srvdll, GetAllServerClasses));
diff --git a/src/gametype.h b/src/gametype.h
index d7d0b3e..c825ee6 100644
--- a/src/gametype.h
+++ b/src/gametype.h
@@ -49,6 +49,8 @@ extern u64 _gametype_tag;
 #define _gametype_tag_SrvDLL009	(1 << 14) // 2013-ish
 #define _gametype_tag_SrvDLL005	(1 << 15) // mostly everything else, it seems
 
+#define _gametype_tag_TheLastStand (1 << 16) /* The JAiZ update */
+
 /* Matches for any multiple possible tags */
 #define _gametype_tag_L4D		(_gametype_tag_L4D1 | _gametype_tag_L4D2)
 // XXX: *stupid* naming, refactor later (damn Survivors ruining everything)
diff --git a/src/os.h b/src/os.h
index d789717..c00eaf3 100644
--- a/src/os.h
+++ b/src/os.h
@@ -28,6 +28,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #ifdef _WIN32
+#include <direct.h>
 #include <io.h>
 #include <wchar.h>
 // DUMB HACK: noreturn.h is alphabetically before os.h so including it after