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Make the contents of ObjectIDs.h part of the Lua interface.

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This commit is contained in:
hispidence 2021-07-20 00:16:15 +01:00
parent f7ef7ae505
commit 1ba7007d92
1 changed files with 22 additions and 14 deletions
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36
TR5Main/Scripting/GameLogicScript.cpp
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@ -14,6 +14,7 @@
#include "newinv2.h"
#include <iostream>
#include "InventorySlots.h"
#include "ObjectIDs.h"
#ifndef _DEBUG
#include <iostream>
@ -34,25 +35,32 @@ GameScript::GameScript(sol::state* lua) : LuaHandler{ lua }
m_lua->set_function("GetInvItemCount", &GameScript::InventoryGetCount);
m_lua->set_function("SetInvItemCount", &GameScript::InventorySetCount);
// Put all the data in InvItem's metatable
m_lua->set("InvItemMeta", sol::as_table(kInventorySlots));
auto makeReadOnlyTable = [this](std::string const & tableName, auto const& container)
{
auto mt = tableName + "Meta";
// Put all the data in the metatable
m_lua->set(mt, sol::as_table(container));
// Make the metatable's __index refer to itself so that requests
// to InvItem will go through to the metatable (and thus the
// kInventorySlot members)
m_lua->safe_script("InvItemMeta.__index = InvItemMeta");
// Make the metatable's __index refer to itself so that requests
// to the main table will go through to the metatable (and thus the
// container's members)
m_lua->safe_script(mt + ".__index = " + mt);
// Don't allow InvItem to have new elements put into it
m_lua->safe_script("InvItemMeta.__newindex = function() error('InvItem is read-only') end");
// Don't allow the table to have new elements put into it
m_lua->safe_script(mt + ".__newindex = function() error('" + tableName + " is read-only') end");
// Protect the metatable
m_lua->safe_script("InvItemMeta.__metatable = 'metatable is protected'");
// Protect the metatable
m_lua->safe_script(mt + ".__metatable = 'metatable is protected'");
auto tab = m_lua->create_named_table("InvItem");
m_lua->safe_script("setmetatable(InvItem, InvItemMeta)");
auto tab = m_lua->create_named_table(tableName);
m_lua->safe_script("setmetatable(" + tableName + ", " + mt + ")");
// point InvItemMeta array from the table
m_lua->safe_script("InvItemMeta = nil");
// point the initial metatable variable away from its contents. this is just for cleanliness
m_lua->safe_script(mt + "= nil");
};
makeReadOnlyTable("InvItem", kInventorySlots);
makeReadOnlyTable("ObjID", kObjIDs);
GameScriptItemInfo::Register(m_lua);
auto addLuaName = [this](std::string const& str, short num)