Add entity property finding and L4D warp testing

This was a lot more code than expected, but it might be finally close to
time to release the next beta...

We'll see if any more rabbit holes present themselves to jump into,
though.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/engineapi.c b/src/engineapi.c
index 54671a8..54b9128 100644
--- a/src/engineapi.c
+++ b/src/engineapi.c
@@ -14,9 +14,15 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include <stdbool.h> // used in generated code
+#include <string.h> // "
+
 #include "engineapi.h"
+#include "gamedata.h"
 #include "gametype.h"
 #include "intdefs.h"
+#include "mem.h" // "
+#include "vcall.h"
 
 u64 _gametype_tag = 0; // declared in gametype.h but seems sensible enough here
 
@@ -26,6 +32,15 @@ ifacefactory factory_client = 0, factory_server = 0, factory_engine = 0,
 struct VEngineClient *engclient;
 struct VEngineServer *engserver;
 
+// this seems to be very stable, thank goodness
+DECL_VFUNC(void *, GetGlobalVars, 1)
+void *globalvars;
+
+DECL_VFUNC_DYN(void *, GetAllServerClasses)
+DECL_VFUNC_DYN(int, GetEngineBuildNumber)
+
+#include <entpropsinit.gen.h>
+
 void engineapi_init(void) {
 	if (engclient = factory_engine("VEngineClient015", 0)) {
 		_gametype_tag |= _gametype_tag_Client015;
@@ -45,6 +60,53 @@ void engineapi_init(void) {
 	}
 	// else if (engserver = others as needed...) {
 	// }
+
+	void *pim = factory_server("PlayerInfoManager002", 0);
+	if (pim) globalvars = VCALL(pim, GetGlobalVars);
+
+	void *srvdll;
+	// TODO(compat): add this back when there's gamedata for 009 (no point atm)
+	/*if (srvdll = factory_engine("ServerGameDLL009", 0)) {
+		_gametype_tag |= _gametype_tag_SrvDLL009;
+	}*/
+	if (srvdll = factory_server("ServerGameDLL005", 0)) {
+		_gametype_tag |= _gametype_tag_SrvDLL005;
+	}
+
+	// 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) {
+		struct ServerClass *svclass = VCALL(srvdll, GetAllServerClasses);
+		initentprops(svclass);
+#if 0 // just keeping a note of this testing code for now, might delete later
+		for (; svclass; svclass = svclass->next) {
+			struct SendTable *st = svclass->table;
+			for (struct SendProp *p = st->props; (char *)p -
+					(char *)st->props < st->nprops * sz_SendProp;
+					p = mem_offset(p, sz_SendProp)) {
+				if (!strcmp(*(const char **)mem_offset(p, off_SP_varname),
+						"m_angEyeAngles[0]")) {
+					con_msg("%s\n", svclass->name);
+					con_msg("  %s\n", st->tablename);
+					con_msg("    %s = %d\n", *(const char **)mem_offset(p,
+							off_SP_varname), *(int *)mem_offset(p, off_SP_offset));
+				return;
+				}
+			}
+		}
+#endif
+	}
 }
 
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