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GUI I.

GUI I. Ogre3D Overlay. Project initialization. http://cg.iit.bme.hu/gamedev/KIC/06_GUI / 06_01_Ogre3D_ Overlays _ Base.zip Extract Run: OgreOverlays.sln Set include and library paths (if not correct) Set working directory (if not $( SolutionDir )/bin) Compile Run Play !!.

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GUI I.

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  1. GUI I. Ogre3D Overlay

  2. Project initialization • http://cg.iit.bme.hu/gamedev/KIC/06_GUI/ • 06_01_Ogre3D_Overlays_Base.zip • Extract • Run: OgreOverlays.sln • Set include and library paths (if not correct) • Set working directory (if not $(SolutionDir)/bin) • Compile • Run • Play!!

  3. Ghost Buster Game

  4. Newness / implementation • Onemeshmodel, Phongshading, post processing • Camera motion(CameraAnimation : public FrameListener) • Text file (bin\cameraanim.txt) • Animationstopsatgiventimepositions (const float stopTimes[]) • Ghosts: • Particlesystem, billboards (media\ghosts.particle) • 1 emitter, adjustingemissionrateatanimation stop and resumetimes

  5. Newness / implementation • Counting the number of ghost births • Register a ParticleAffector descendant(GhostCounter: public ParticleAffector) • Shot ghosts • Need pixel-wise solution • ID map • How to set an ID to particles ??? • How to read back the ID map ???

  6. HUD, Overlay main.cpp #include “HUD.h” ... HUD* mainHUD; ... void setupScene() { … mainHUD = new HUD(); } HUD.h #ifndef HUD_H #define HUD_H #include "stdafx.h" #include "Ogre.h" class HUD { public: HUD() { Ogre::Overlay* mainOverlay = Ogre::OverlayManager::getSingleton().getByName("MainOverlay"); mainOverlay->show(); } }; #endif /* HUD_H */

  7. HUD.overlay material HUD/IDMAP { technique { pass { lighting off texture_unit { textureidMap } } } } MainOverlay { container Panel(MainContainer) { transparent true left 0 top 0 width 1 height 1 element Panel(GhostIDMap) { left 0.8 top 0.0 width 0.2 height 0.2 material HUD/IDMAP transparent false uv_coords 0 0 1 1 } } } unique names relative, parentspacevalues absolute, screenspacevalues

  8. Run

  9. Cross-hair, hiding the cursor inputs.h #if defined OIS_WIN32_PLATFORM pl.insert(std::make_pair(std::string("w32_mouse"), std::string("DISCL_FOREGROUND" ))); pl.insert(std::make_pair(std::string("w32_mouse"), std::string("DISCL_NONEXCLUSIVE"))); pl.insert(std::make_pair(std::string("w32_keyboard"), std::string("DISCL_FOREGROUND"))); pl.insert(std::make_pair(std::string("w32_keyboard"), std::string("DISCL_NONEXCLUSIVE"))); #elif defined OIS_LINUX_PLATFORM pl.insert(std::make_pair(std::string("x11_mouse_grab"), std::string("false"))); pl.insert(std::make_pair(std::string("x11_mouse_hide"), std::string("false"))); pl.insert(std::make_pair(std::string("x11_keyboard_grab"), std::string("false"))); pl.insert(std::make_pair(std::string("XAutoRepeatOn"), std::string("true"))); #endif

  10. Cross-hair image MainOverlay { container Panel(MainContainer) { …. element Panel(Cross) { metrics_mode pixels width 20 height 20 material HUD/crosshair uv_coords 0 0 1 1 } material HUD/crosshair { technique { pass { lighting off scene_blend add texture_unit { texture crosshair.jpg } } } }

  11. Cross-hair movement I. class HUD { float cursorSize; float cursorScaler; public: HUD() { ... cursorSize = 20; cursorScaler = 1; } void setCursorPos(float x, float y) { Ogre::OverlayElement* cursor = Ogre::OverlayManager::getSingleton() .getOverlayElement("Cross", false); cursor->setPosition(x-cursorScaler*cursorSize*0.5f, y-cursorScaler*cursorSize*0.5f); } void setCursorSize(float scaler) { cursorScaler = scaler; Ogre::OverlayElement* cursor = Ogre::OverlayManager::getSingleton() .getOverlayElement("Cross", false); cursor->setWidth(cursorScaler*cursorSize); cursor->setHeight(cursorScaler*cursorSize); } };

  12. Cross-hair movement II. class ShootController { public: boolhandleEvent(float t, float dt, OIS::Keyboard* keyboard, OIS::Mouse* mouse) { unsigned int w = renderWindow->getWidth(); unsigned int h = renderWindow->getHeight(); unsigned intmouseX = mouse->getMouseState().X.abs; unsigned intmouseY = mouse->getMouseState().Y.abs; if(mouse->getMouseState().buttonDown(OIS::MB_Left)) { mainHUD->setCursorSize(2.0); … } else { mainHUD->setCursorSize(1.0); } mainHUD->setCursorPos(mouseX, mouseY); return true; }

  13. Test

  14. Diplaying current score I. MainOverlay { container Panel(TMP) { transparent true element TextArea(TMPTEXT) { font_name TrebuchetMSBold caption blablablab } } container Panel(MainContainer) { left 0 top 0 width 1 height 1 element TextArea(Score) { left 0.02 width 0.2 top 0.02 height 0.06 char_height 0.04 font_name TrebuchetMSBold caption 0/0 } BUG!!!???

  15. Diplaying current score II. class HUD { ... public: ... void refreshScore(intallGhosts, intkilledGhosts) { Ogre::String newCaption = Ogre::StringConverter::toString(killedGhosts) + "/" + Ogre::StringConverter::toString(allGhosts); Ogre::OverlayElement* score = Ogre::OverlayManager::getSingleton().getOverlayElement("Score"); score->setCaption(newCaption); } Main.cpp printf("ghosts %i/%i\n", ghostBorn, ghostShooted); mainHUD->refreshScore(ghostBorn, ghostShooted);

  16. Test

  17. Game statistics I. template element TextArea(GhostsTemplate) { left 0.35 width 0.153 top 0.045 height 0.06 char_height 0.04 alignment center font_nameTrebuchetMSBold } template element TextArea(HealthTemplate) { left 0.47 width 0.153 top 0.045 height 0.06 char_height 0.04 alignment center font_nameTrebuchetMSBold } template elementTextArea(PlayerTemplate) { left 0.106 width 0.153 top 0.045 height 0.06 char_height 0.04 alignment center font_nameTrebuchetMSBold } template element TextArea(KillsTemplate) { left 0.245 width 0.153 top 0.045 height 0.06 char_height 0.04 alignment center font_nameTrebuchetMSBold }

  18. Game statistics II. container Panel(MainContainer) { ... } container Panel(PlayerStats) { left 0.2 top 0.02 width 0.6 height 0.6 material HUD/Stats element TextArea(PlayerName) : PlayerTemplate { caption Player } element TextArea(PlayerKills) : KillsTemplate { caption Kills } element TextArea(PlayerGhosts) : GhostsTemplate { caption Ghosts } element TextArea(PlayerHealth) : HealthTemplate { caption Health } } material HUD/Stats { technique { pass { lighting off scene_blend alpha_blend texture_unit { texture stats.png } } } }

  19. Game statistics III. class ShootController : public InputListener, public RenderTargetListener { public: boolhandleEvent(float t, float dt, OIS::Keyboard* keyboard, OIS::Mouse* mouse) { if(keyboard->isKeyDown(OIS::KC_SPACE) && mTimeUntilNextToggle < 0) { mainHUD->showStats(); mTimeUntilNextToggle = 1; } ...

  20. Game statistics IV. class HUD { … HUD() { … Ogre::OverlayElement* stats = Ogre::OverlayManager::getSingleton().getOverlayElement("PlayerStats", false); stats->hide(); } voidshowStats() { Ogre::OverlayElement* stats = Ogre::OverlayManager::getSingleton().getOverlayElement("PlayerStats", false); if(stats->isVisible()) stats->show() else stats->hide(); }

  21. Example of inserting a new element into the statistics table Ogre::OverlayElement* ke = Ogre::OverlayManager::getSingleton(). createOverlayElementFromTemplate( "KillsTemplate", "TextArea", name + "Kills"); ke->setTop(ke->getTop() + 0.04 + 0.04 * (i+1));

  22. The End

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