Rewrite the gamedata and entprops systems entirely

This removes the horrible janky old KeyValues parser and replaces it
with a couple of trivial ad-hoc text parsers. In doing so, make the
format of the actual gamedata files more human-friendly too.

We also gain support for nested SendTables in mkentprops, which are
required to get at various things like player velocity. And, the actual
string matching is made more efficient (or, at least, more scalable) by
way of a cool radix tree thing which generates a bunch of switch cases
on distinct characters.

1 files changed, 162 insertions, 0 deletions

diff --git a/gamedata/engine.txt b/gamedata/engine.txt
new file mode 100644
index 0000000..b5186a6
--- /dev/null
+++ b/gamedata/engine.txt
@@ -0,0 +1,162 @@
+# ICvar
+# XXX: const and non-const entries might be flipped here on Windows, not 100%
+# sure. kind of just choosing not to care thusfar, as it still works the same!
+vtidx_AllocateDLLIdentifier 5
+	Portal2 8
+vtidx_RegisterConCommand 6
+	Portal2 9
+vtidx_UnregisterConCommands 8
+	Portal2 11
+# unused:
+#vtidx_FindCommandBase 10
+#	Portal2 13
+vtidx_FindVar 12
+	Portal2 15
+vtidx_FindCommand 14
+	Portal2 17
+vtidx_CallGlobalChangeCallbacks 20
+	L4Dx 18
+	Portal2 21
+vtidx_ConsoleColorPrintf
+	OrangeBoxbased 23
+	L4Dx 21
+	Portal2 24
+
+# CDemoRecorder
+vtidx_StartRecording 2
+vtidx_SetSignonState 3
+vtidx_StopRecording 7
+vtidx_RecordPacket 11
+
+# VEngineClient
+vtidx_IsInGame
+	Client015 26
+	Client014
+		L4D2 28
+		2013 26
+	Client013 26
+		L4D1 27
+	# TODO(compat): unconfirmed, and OE support isn't really a thing yet anyway
+	#Client012 28
+vtidx_GetGameDirectory
+	Client015 35 # current Portal 2
+	Client014
+		L4D2 73 # YES IT'S SEVENTY THREE SOMEHOW ALL OF A SUDDEN.
+		2013 35
+	Client013 35
+		L4Dx 36 # AND THEY ACTUALLY CHANGED IT BACK LATER! (on 2.0.4.1)
+	Client012 37 # dmomm, ep1, ...
+vtidx_GetEngineBuildNumber
+	Client013
+		L4D2 99
+		Portal2 100
+	Client014
+		L4D2 31
+		2013 98
+	Portal1_3420 91
+	# TODO(compat): we'll need these... but need to detect first
+	#Portal1_5135 102
+	#L4D1_1005 99
+	#L4D1_Steam 97
+
+# IGameUIFuncs
+vtidx_GetDesktopResolution 5
+
+# IGame/CGame
+vtidx_DispatchAllStoredGameMessages 16
+
+# VEngineServer
+vtidx_PEntityOfEntIndex
+	OrangeBox 19 # probably OE too but ??
+vtidx_ServerCommand
+	OrangeBoxbased 36
+
+sz_edict 20
+	L4Dbased 16
+
+# vgui::Panel
+vtidx_SetPaintEnabled 67
+	Client013
+		L4D1 68
+		L4D2 71
+			L4D2_2147plus 72
+	Client014
+		L4D2 70
+vtidx_Paint 123
+	Client014
+		L4D2 126 # 2000
+	Client013
+		L4D2 127 # 2045
+			L4D2_2147plus 128
+
+# SendProp
+sz_SendProp
+	# wrapping all these in 005 for right now.
+	# will need at least 009 as well at some point!
+	SrvDLL005
+		OrangeBox	76
+		L4D1		80
+		L4D2		84
+		Portal2		84
+	#2013 80 # TODO(compat): not sure about 2013/009 yet
+off_SP_type 8
+off_SP_varname
+	SrvDLL005
+		OrangeBox	44
+		#L4Dbased	48 # TODO(compat): haven't tested Survivors
+		# for now do this instead:
+		L4D			48
+		Portal2		48
+	#2013 48 # TODO(compat): not sure about 2013/009 yet pt2
+off_SP_subtable
+	SrvDLL005
+		OrangeBox	64
+		L4D1		68
+		L4D2		72
+		Portal2		72
+	#2013 68 # TODO(compat): not sure about 2013/009 yet pt3
+off_SP_offset
+	SrvDLL005
+		OrangeBox	68
+		L4D1		72
+		L4D2		76
+		Portal2		76
+	#2013 72 # TODO(compat): not sure about 2013/009 yet pt4
+
+DT_DataTable 5 # constant value from SendPropType enum (XXX: name okay???)
+	L4Dbased 6
+
+# CBaseServer/CGameServer
+vtidx_GetSpawnCount
+	#OrangeBox 13 + NVDTOR # not used right now anyway
+	L4D1 13 + NVDTOR
+	L4D2 14 + NVDTOR # GetTimescale() added, pushed it down
+	# rest untested, add later if/when actually needed for something
+
+# IEngineVGuiInternal/CEngineVGui
+vtidx_GetPanel NVDTOR
+# note: actual name of this function is Connect() but that's too generic
+vtidx_VGuiConnect 3 + NVDTOR
+	L4Dbased 4 + NVDTOR # ActivateGameUI added
+		L4DS 5 + NVDTOR # some other crap added, god knows
+vtidx_VGuiIsInitialized 6 + NVDTOR # this is also just called IsInitialized()
+	L4Dbased 7 + NVDTOR
+		L4DS 8 + NVDTOR
+
+# CDedicatedServerAPI
+vtidx_RunFrame 7
+
+# IEngine
+vtidx_Frame 4 + NVDTOR
+
+# CEngineTool
+vtidx_GetRealTime 34 # HL2, P1, L4D1, BMS
+	# OE, DMoMM 24
+	L4D2 35
+	Portal2 36
+vtidx_HostFrameTime 35
+	# OE, DMoMM 25
+	L4D2 38
+	Portal2 39
+
+# vi: sw=4 ts=4 noet tw=80 cc=80