Add Lua global variables library (#6472)

* add global variables library

* nested namespaces

code/scripting/api/libs/globals.cpp

@@ -0,0 +1,70 @@
+//
+//
+
+#include "globalincs/version.h"
+
+#include "globals.h"
+
+#include "missionui/missionscreencommon.h"
+#include "playerman/managepilot.h"
+
+namespace scripting::api {
+
+//**********LIBRARY: Globals
+ADE_LIB(l_GlobalVariables, "GlobalVariables", "gl", "Library of global values");
+
+ADE_VIRTVAR(MAX_PILOTS,
+	l_GlobalVariables,
+	nullptr,
+	"Gets the maximum number of possible pilots.",
+	"number",
+            "The maximum number of pilots")
+{
+	return ade_set_args(L, "i", MAX_PILOTS);
+}
+
+ADE_VIRTVAR(MAX_WING_SLOTS,
+	l_GlobalVariables,
+	nullptr,
+	"The maximum ships that can be in a loadout wing",
+	"number",
+	"A maximum number of ships")
+{
+
+	return ade_set_args(L, "i", MAX_WING_SLOTS);
+}
+
+ADE_VIRTVAR(MAX_WING_BLOCKS,
+	l_GlobalVariables,
+	nullptr,
+	"The maximum wings that can be in a loadout",
+	"number",
+	"A maximum number of wings")
+{
+
+	return ade_set_args(L, "i", MAX_WING_BLOCKS);
+}
+
+ADE_VIRTVAR(MAX_SHIP_PRIMARY_BANKS,
+	l_GlobalVariables,
+	nullptr,
+	"The maximum primary banks a ship can have",
+	"number",
+	"A maximum number of primary banks")
+{
+
+	return ade_set_args(L, "i", MAX_SHIP_PRIMARY_BANKS);
+}
+
+ADE_VIRTVAR(MAX_SHIP_SECONDARY_BANKS,
+	l_GlobalVariables,
+	nullptr,
+	"The maximum secondary banks a ship can have",
+	"number",
+	"A maximum number of secondary banks")
+{
+
+	return ade_set_args(L, "i", MAX_SHIP_SECONDARY_BANKS);
+}
+
+} // namespace scripting::api

code/scripting/api/libs/globals.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include "scripting/ade_api.h"
+
+namespace scripting::api {
+
+DECLARE_ADE_LIB(l_GlobalVariables);
+
+} // namespace scripting::api

code/scripting/api/libs/ui.cpp

@@ -301,8 +301,10 @@ ADE_LIB_DERIV(l_UserInterface_PilotSelect, "PilotSelect", nullptr,
               "API for accessing values specific to the Pilot Select UI.",
               l_UserInterface);
 
-ADE_VIRTVAR(MAX_PILOTS, l_UserInterface_PilotSelect, nullptr, "Gets the maximum number of possible pilots.", "number",
-            "The maximum number of pilots")
+ADE_VIRTVAR_DEPRECATED(MAX_PILOTS, l_UserInterface_PilotSelect, nullptr, "Gets the maximum number of possible pilots.", "number",
+	"The maximum number of pilots",
+	gameversion::version(25, 0, 0, 0),
+	"This variable has moved to the GlobalVariabls library.")
 {
 	return ade_set_args(L, "i", MAX_PILOTS);
 }

code/scripting/lua.cpp

@@ -77,6 +77,7 @@ extern "C" {
 #include "scripting/api/libs/cfile.h"
 #include "scripting/api/libs/controls.h"
 #include "scripting/api/libs/engine.h"
+#include "scripting/api/libs/globals.h"
 #include "scripting/api/libs/graphics.h"
 #include "scripting/api/libs/hookvars.h"
 #include "scripting/api/libs/hud.h"

code/source_groups.cmake

@@ -1302,6 +1302,8 @@ add_file_folder("Scripting\\\\Api\\\\Libs"
 	scripting/api/libs/controls.h
 	scripting/api/libs/engine.cpp
 	scripting/api/libs/engine.h
+	scripting/api/libs/globals.cpp
+	scripting/api/libs/globals.h
 	scripting/api/libs/graphics.cpp
 	scripting/api/libs/graphics.h
 	scripting/api/libs/hookvars.cpp