mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 13:23:56 -07:00
1a66f510d0
Using references matches the C++ coding style better and should improve performance a bit in theory. It avoids 2 copies of T in case of the functions registered with RegisterFunction (mainy used in the GUI). It should also avoid one or two copies in case of DEFINE_INTERFACE_METHOD_X, which is used in the simulation, but I haven't bothered to count it there exactly. It is now predefined which types have to be passed by const reference and which are passed by value. Note that references can't be used as out-parameters (to return multiple values to JS). This hasn't worked before either and probably never will. This was SVN commit r17696.
130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
/* Copyright (C) 2014 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "scriptinterface/ScriptInterface.h"
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#include "scriptinterface/ScriptVal.h"
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#include "lib/file/file_system.h"
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#include "lib/file/vfs/vfs.h"
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#include "lib/utf8.h"
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#include "ps/Filesystem.h"
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#include "ps/GameSetup/GameSetup.h"
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#include "ps/GameSetup/Paths.h"
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#include "ps/Mod.h"
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#include "ps/scripting/JSInterface_Mod.h"
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#include <algorithm>
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extern void restart_engine();
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/**
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* Returns a JS object containing a listing of available mods that
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* have a modname.json file in their modname folder. The returned
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* object looks like { modname1: json1, modname2: json2, ... } where
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* jsonN is the content of the modnameN/modnameN.json file as a JS
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* object.
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*
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* @return JS object with available mods as the keys of the modname.json
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* properties.
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*/
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JS::Value JSI_Mod::GetAvailableMods(ScriptInterface::CxPrivate* pCxPrivate)
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{
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ScriptInterface* scriptInterface = pCxPrivate->pScriptInterface;
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JSContext* cx = scriptInterface->GetContext();
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JSAutoRequest rq(cx);
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JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
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const Paths paths(g_args);
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// loop over all possible paths
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OsPath modPath = paths.RData()/"mods";
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OsPath modUserPath = paths.UserData()/"mods";
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DirectoryNames modDirs;
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DirectoryNames modDirsUser;
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GetDirectoryEntries(modPath, NULL, &modDirs);
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// Sort modDirs so that we can do a fast lookup below
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std::sort(modDirs.begin(), modDirs.end());
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PIVFS vfs = CreateVfs(1); // No cache needed; TODO but 0 crashes
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for (DirectoryNames::iterator iter = modDirs.begin(); iter != modDirs.end(); ++iter)
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{
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vfs->Clear();
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if (vfs->Mount(L"", modPath / *iter, VFS_MOUNT_MUST_EXIST) < 0)
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continue;
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CVFSFile modinfo;
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if (modinfo.Load(vfs, L"mod.json", false) != PSRETURN_OK)
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continue;
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JS::RootedValue json(cx);
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if (!scriptInterface->ParseJSON(modinfo.GetAsString(), &json))
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continue;
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// Valid mod, add it to our structure
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JS_SetProperty(cx, obj, utf8_from_wstring(iter->string()).c_str(), json);
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}
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GetDirectoryEntries(modUserPath, NULL, &modDirsUser);
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bool dev = InDevelopmentCopy();
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for (DirectoryNames::iterator iter = modDirsUser.begin(); iter != modDirsUser.end(); ++iter)
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{
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// If we are in a dev copy we do not mount mods in the user mod folder that
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// are already present in the mod folder, thus we skip those here.
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if (dev && std::binary_search(modDirs.begin(), modDirs.end(), *iter))
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continue;
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vfs->Clear();
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if (vfs->Mount(L"", modUserPath / *iter, VFS_MOUNT_MUST_EXIST) < 0)
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continue;
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CVFSFile modinfo;
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if (modinfo.Load(vfs, L"mod.json", false) != PSRETURN_OK)
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continue;
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JS::RootedValue json(cx);
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if (!scriptInterface->ParseJSON(modinfo.GetAsString(), &json))
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continue;
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// Valid mod, add it to our structure
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JS_SetProperty(cx, obj, utf8_from_wstring(iter->string()).c_str(), json);
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}
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return JS::ObjectValue(*obj);
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}
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void JSI_Mod::RestartEngine(ScriptInterface::CxPrivate* UNUSED(pCxPrivate))
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{
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restart_engine();
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}
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void JSI_Mod::SetMods(ScriptInterface::CxPrivate* UNUSED(pCxPrivate), const std::vector<CStr>& mods)
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{
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g_modsLoaded = mods;
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}
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void JSI_Mod::RegisterScriptFunctions(ScriptInterface& scriptInterface)
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{
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scriptInterface.RegisterFunction<JS::Value, &JSI_Mod::GetAvailableMods>("GetAvailableMods");
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scriptInterface.RegisterFunction<void, &JSI_Mod::RestartEngine>("RestartEngine");
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scriptInterface.RegisterFunction<void, std::vector<CStr>, &JSI_Mod::SetMods>("SetMods");
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}
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