lua: move engine tables into own source file

CMakeLists.txt

@@ -64,6 +64,7 @@ set(COMMON_SOURCES
 	Quake/lodepng.h
 	Quake/ls_common.h
 	Quake/ls_edict.cpp
+	Quake/ls_engine.cpp
 	Quake/ls_imgui.cpp
 	Quake/ls_imgui.h
 	Quake/ls_imgui_enums.h
@@ -747,6 +748,7 @@ if(QUAKE_BUILD_ENGINE_PAK)
 		scripts/aliases/common.cfg
 		scripts/aliases/expmode.cfg
 		scripts/edicts.lua
+		scripts/engine.lua
 		scripts/expmode_base.lua
 		scripts/expmode_edicts.lua
 		scripts/expmode_engine.lua

Misc/qs_pak/scripts/edicts.lua

@@ -631,20 +631,3 @@ function edicts.boxsearch(halfedge, origin)
 
 	return result
 end
-
-
----
---- Host helpers
----
-
-function host.levelname()
-	local world = edicts[1]
-	return world and world.message
-end
-
-function host.mapname()
-	local world = edicts[1]
-
-	-- Remove leading 'maps/' and trailing '.bsp'
-	return world and world.model:sub(6):sub(1, -5)
-end

Misc/qs_pak/scripts/engine.lua

@@ -0,0 +1,16 @@
+
+---
+--- Host helpers
+---
+
+function host.levelname()
+	local world = edicts[1]
+	return world and world.message
+end
+
+function host.mapname()
+	local world = edicts[1]
+
+	-- Remove leading 'maps/' and trailing '.bsp'
+	return world and world.model:sub(6):sub(1, -5)
+end

Quake/ls_common.h

@@ -23,27 +23,23 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "lua.hpp"
 
-class LS_TempAllocatorBase
-{
-protected:
-	static void* Alloc(size_t size);
-	static void Free(void* pointer);
-};
+char* LS_tempalloc(lua_State* state, size_t size);
+void LS_tempfree(void* ptr);
 
 template <typename T>
-class LS_TempAllocator : LS_TempAllocatorBase
+class LS_TempAllocator
 {
 public:
 	using value_type = T;
 
 	static T* allocate(const size_t count)
 	{
-		return static_cast<T*>(Alloc(sizeof(T) * count));
+		return reinterpret_cast<T*>(LS_tempalloc(nullptr, sizeof(T) * count));
 	}
 
 	static void deallocate(T* pointer, size_t) noexcept
 	{
-		Free(pointer);
+		LS_tempfree(pointer);
 	}
 };
 
@@ -135,6 +131,8 @@ void LS_InitEdictType(lua_State* state);
 void LS_PushEdictValue(lua_State* state, int edictindex);
 void LS_PushEdictValue(lua_State* state, const struct edict_s* edict);
 
+void LS_InitEngineTables(lua_State* state);
+
 void LS_InitProgsType(lua_State* state);
 void LS_ResetProgsType();