GUI II.Ogre3D GUI with MyGUI

Project initialization http://cg.iit.bme.hu/gamedev/KIC/06_GUI/ 06_02_Ogre3D_MyGui_Base.zip Extract Run: OgreMyGui.sln Set include and library paths (if not correct) Set working directory (if not $

(SolutionDir)/bin) Compile Run Play !!

Ghost Game with Overlays

MyGUI• free, open source library• targeted at Ogre3D• relatively simple and flexible• visual tools for GUI editing• dismal documentation for coding

2012. 11. 8.

MyGUI compilation• there is no downloadable SDK– but included in guibase.zip for you

• if code had to be compiled– requires Ogre3D SDK– requires FreeType library• for Windows, install FreeType for Windows from

gnuwin32.sourceforge.net– requires CMake build tool

2012. 11. 8.

MyGUI configuration• in CMake specify Ogre and FreeType

directories as dependencies• click “Generate”• open generated MyGUI.sln in Visual

Studio– verify that boost version of the Ogre SDK is

included (addition include dirs)

• compile MyGUIEngine and OgrePlatform2012. 11. 8.

MyGUI includes• include directories– ..\..\..\MyGUI_3.2.0\MyGUIEngine\include– ..\..\..\MyGUI_3.2.0\Platforms\Ogre\

OgrePlatform\include

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main.cpp

#include "MyGUI.h"#include "MyGUI_OgrePlatform.h"

Channeling events to the GUI

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class GuiInputHandler : public OIS::MouseListener , public OIS::KeyListener { public:bool mouseMoved( const OIS::MouseEvent &arg ) {return MyGUI::InputManager::getInstance().injectMouseMove(arg.state.X.abs, arg.state.Y.abs, arg.state.Z.abs); }bool mousePressed( const OIS::MouseEvent &arg, OIS::MouseButtonID id ){return MyGUI::InputManager::getInstance().injectMousePress( arg.state.X.abs, arg.state.Y.abs, MyGUI::MouseButton::Enum(id)); }bool mouseReleased( const OIS::MouseEvent &arg,OIS::MouseButtonID id ) {return MyGUI::InputManager::getInstance().injectMouseRelease( arg.state.X.abs, arg.state.Y.abs, MyGUI::MouseButton::Enum(id)); }bool keyPressed( const OIS::KeyEvent &arg ) {return MyGUI::InputManager::getInstance().injectKeyPress( MyGUI::KeyCode::Enum(arg.key), arg.text); }bool keyReleased( const OIS::KeyEvent &arg ) {return MyGUI::InputManager::getInstance().injectKeyRelease( MyGUI::KeyCode::Enum(arg.key)); } };

InputManager modification (inputs.h)

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public:OIS::Keyboard* mKeyboard;OIS::Mouse* mMouse;

mKeyboard = static_cast<OIS::Keyboard*>(OISInputManager->createInputObject( OIS::OISKeyboard,

true ));mMouse = static_cast<OIS::Mouse*>(

OISInputManager->createInputObject( OIS::OISMouse, true ));

Listener registrationin main.cpp: setupListeners

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GuiInputHandler* guiInputHander = new GuiInputHandler();inputManager->mMouse->

setEventCallback(guiInputHander);inputManager->mKeyboard->

setEventCallback(guiInputHander);

GUI initializationmain.cpp: setupScene

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platform = new MyGUI::OgrePlatform();platform->initialise(renderWindow, sceneManager); gui = new MyGUI::Gui();gui->initialise();

// GUI element creation may commence here

Let us create a progress bar!

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//globalMyGUI::ProgressPtr progressBar;

// in setupScene()// GUI element creation may commence hereprogressBar = gui->createWidget<MyGUI::ProgressBar> ("ProgressBar",100,10,500,30,MyGUI::Align::Center,"Main");// skin^ position^

progressBar->setEnabled(true);progressBar->setProgressRange(stopTimes[numStops-1]);progressBar->setProgressPosition(0);

Indicate progress in every frame!

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progressBar->setProgressPosition(animTime);

Result

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Add checkbox to toggle music on/off!

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MyGUI::ButtonPtr button = gui->createWidget<MyGUI::Button> ("CheckBox", 10, 40, 300, 26, MyGUI::Align::Default, "Main");

button->setCaption("Music");

Result

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GameAudio.h: new method

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void setMusicVolume(float musicVolume) {this->musicVolume = musicVolume;AL_SAFE_CALL(

alSourcef (ambientSource, AL_GAIN, musicVolume),

"unable to set ambient volume");}

Global function

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void guiToggleMusic(MyGUI::Widget* _sender) { MyGUI::ButtonPtr checkbox =

_sender->castType<MyGUI::Button>();if(checkbox->getStateSelected()) {

checkbox->setStateSelected(false);gameAudio->setMusicVolume(0);

} else {checkbox->setStateSelected(true);

gameAudio->setMusicVolume(10);}

}

Add event listener

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button->eventMouseButtonClick +=MyGUI::newDelegate(

guiToggleMusic);

Result

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The End

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