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source: code/branches/questsystem2/src/orxonox/gamestates/GSRoot.cc @ 2388

Last change on this file since 2388 was 2087, checked in by landauf, 16 years ago

merged objecthierarchy branch back to trunk

  • Property svn:eol-style set to native
File size: 5.6 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Reto Grieder
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "OrxonoxStableHeaders.h"
30#include "GSRoot.h"
31
32#include "util/Exception.h"
33#include "util/Debug.h"
34#include "core/Factory.h"
35#include "core/ConfigValueIncludes.h"
36#include "core/CoreIncludes.h"
37#include "core/ConsoleCommand.h"
38#include "core/CommandLine.h"
39#include "core/Shell.h"
40#include "core/TclBind.h"
41#include "core/TclThreadManager.h"
42#include "tools/Timer.h"
43#include "Settings.h"
44
45#if ORXONOX_PLATFORM == ORXONOX_PLATFORM_WIN32
46#  ifndef WIN32_LEAN_AND_MEAN
47#    define WIN32_LEAN_AND_MEAN
48#  endif
49#  include "windows.h"
50
51   //Get around Windows hackery
52#  ifdef max
53#    undef max
54#  endif
55#  ifdef min
56#    undef min
57#  endif
58#endif
59
60namespace orxonox
61{
62    SetCommandLineArgument(dataPath, "").information("PATH");
63    SetCommandLineArgument(limitToCPU, 1).information("0: off | #cpu");
64
65    GSRoot::GSRoot()
66        : RootGameState("root")
67        , settings_(0)
68        , tclBind_(0)
69        , tclThreadManager_(0)
70        , shell_(0)
71    {
72        RegisterRootObject(GSRoot);
73        setConfigValues();
74    }
75
76    GSRoot::~GSRoot()
77    {
78    }
79
80    void GSRoot::setConfigValues()
81    {
82    }
83
84    void GSRoot::enter()
85    {
86        // creates the class hierarchy for all classes with factories
87        Factory::createClassHierarchy();
88
89        // instantiate Settings class
90        this->settings_ = new Settings();
91
92        std::string dataPath = CommandLine::getValue("dataPath");
93        if (dataPath != "")
94        {
95            if (*dataPath.end() != '/' && *dataPath.end() != '\\')
96                Settings::tsetDataPath(dataPath + "/");
97            else
98                Settings::tsetDataPath(dataPath);
99        }
100
101        // initialise TCL
102        this->tclBind_ = new TclBind(Settings::getDataPath());
103        this->tclThreadManager_ = new TclThreadManager(tclBind_->getTclInterpreter());
104
105        // create a shell
106        this->shell_ = new Shell();
107
108        // limit the main thread to the first core so that QueryPerformanceCounter doesn't jump
109        // do this after ogre has initialised. Somehow Ogre changes the settings again (not through
110        // the timer though).
111        int limitToCPU = CommandLine::getValue("limitToCPU");
112        if (limitToCPU > 0)
113            setThreadAffinity((unsigned int)(limitToCPU - 1));
114
115        // add console commands
116        FunctorMember<GSRoot>* functor1 = createFunctor(&GSRoot::exitGame);
117        functor1->setObject(this);
118        CommandExecutor::addConsoleCommandShortcut(createConsoleCommand(functor1, "exit"));
119
120        // add console commands
121        FunctorMember01<GameStateBase, const std::string&>* functor2 = createFunctor(&GameStateBase::requestState);
122        functor2->setObject(this);
123        CommandExecutor::addConsoleCommandShortcut(createConsoleCommand(functor2, "selectGameState"));
124    }
125
126    void GSRoot::leave()
127    {
128        // TODO: remove and destroy console commands
129
130        delete this->shell_;
131        delete this->tclThreadManager_;
132        delete this->tclBind_;
133
134        delete settings_;
135
136    }
137
138    void GSRoot::ticked(const Clock& time)
139    {
140        TclThreadManager::getInstance().tick(time.getDeltaTime());
141
142        for (ObjectList<TimerBase>::iterator it = ObjectList<TimerBase>::begin(); it; ++it)
143            it->tick(time);
144
145        this->tickChild(time);
146    }
147
148    /**
149    @note
150        The code of this function has been copied and adjusted from OGRE, an open source graphics engine.
151            (Object-oriented Graphics Rendering Engine)
152        For the latest info, see http://www.ogre3d.org/
153
154        Copyright (c) 2000-2008 Torus Knot Software Ltd
155       
156        OGRE is licensed under the LGPL. For more info, see OGRE license.
157    */
158    void GSRoot::setThreadAffinity(unsigned int limitToCPU)
159    {
160#if ORXONOX_PLATFORM == ORXONOX_PLATFORM_WIN32
161        // Get the current process core mask
162            DWORD procMask;
163            DWORD sysMask;
164#  if _MSC_VER >= 1400 && defined (_M_X64)
165            GetProcessAffinityMask(GetCurrentProcess(), (PDWORD_PTR)&procMask, (PDWORD_PTR)&sysMask);
166#  else
167            GetProcessAffinityMask(GetCurrentProcess(), &procMask, &sysMask);
168#  endif
169
170            // If procMask is 0, consider there is only one core available
171            // (using 0 as procMask will cause an infinite loop below)
172            if (procMask == 0)
173                    procMask = 1;
174
175        // if the core specified with limitToCPU is not available, take the lowest one
176        if (!(procMask & (1 << limitToCPU)))
177            limitToCPU = 0;
178
179            // Find the lowest core that this process uses and limitToCPU suggests
180        DWORD threadMask = 1;
181            while ((threadMask & procMask) == 0 || (threadMask < (1u << limitToCPU)))
182                    threadMask <<= 1;
183
184            // Set affinity to the first core
185            SetThreadAffinityMask(GetCurrentThread(), threadMask);
186#endif
187    }
188}
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