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

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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 OgrePlatform

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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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