irrlicht的helloworld

/** Example 001 HelloWorld This Tutorial shows how to set up the IDE for using the Irrlicht Engine and how to write a simple HelloWorld program with it. The program will show how to use the basics of the VideoDriver, the GUIEnvironment, and the SceneManager. Microsoft Visual Studio is used as an IDE, but you will also be able to understand everything if you are using a different one or even another operating system than windows. You have to include the header file <irrlicht.h> in order to use the engine. The header file can be found in the Irrlicht Engine SDK directory \c include. To let the compiler find this header file, the directory where it is located has to be specified. This is different for every IDE and compiler you use. Let's explain shortly how to do this in Microsoft Visual Studio: - If you use Version 6.0, select the Menu Extras -> Options. Select the directories tab, and select the 'Include' Item in the combo box. Add the \c include directory of the irrlicht engine folder to the list of directories. Now the compiler will find the Irrlicht.h header file. We also need the irrlicht.lib to be found, so stay in that dialog, select 'Libraries' in the combo box and add the \c lib/VisualStudio directory. \image html "vc6optionsdir.jpg" \image latex "vc6optionsdir.jpg" \image html "vc6include.jpg" \image latex "vc6include.jpg" - If your IDE is Visual Studio .NET, select Tools -> Options. Select the projects entry and then select VC++ directories. Select 'show directories for include files' in the combo box, and add the \c include directory of the irrlicht engine folder to the list of directories. Now the compiler will find the Irrlicht.h header file. We also need the irrlicht.lib to be found, so stay in that dialog, select 'show directories for Library files' and add the \c lib/VisualStudio directory. \image html "vcnetinclude.jpg" \image latex "vcnetinclude.jpg" That's it. With your IDE set up like this, you will now be able to develop applications with the Irrlicht Engine. Lets start! After we have set up the IDE, the compiler will know where to find the Irrlicht Engine header files so we can include it now in our code. */ #include <irrlicht.h> /* In the Irrlicht Engine, everything can be found in the namespace 'irr'. So if you want to use a class of the engine, you have to write irr:: before the name of the class. For example to use the IrrlichtDevice write: irr::IrrlichtDevice. To get rid of the irr:: in front of the name of every class, we tell the compiler that we use that namespace from now on, and we will not have to write irr:: anymore. */ using namespace irr; /* There are 5 sub namespaces in the Irrlicht Engine. Take a look at them, you can read a detailed description of them in the documentation by clicking on the top menu item 'Namespace List' or by using this link: http://irrlicht.sourceforge.net/docu/namespaces.html Like the irr namespace, we do not want these 5 sub namespaces now, to keep this example simple. Hence, we tell the compiler again that we do not want always to write their names. */ using namespace core; using namespace scene; using namespace video; using namespace io; using namespace gui; /* To be able to use the Irrlicht.DLL file, we need to link with the Irrlicht.lib. We could set this option in the project settings, but to make it easy, we use a pragma comment lib for VisualStudio. On Windows platforms, we have to get rid of the console window, which pops up when starting a program with main(). This is done by the second pragma. We could also use the WinMain method, though losing platform independence then. */ #ifdef _IRR_WINDOWS_ #define _CRT_SECURE_NO_WARNINGS #pragma comment(lib, "Irrlicht.lib") #pragma comment(linker, "/subsystem:windows /ENTRY:mainCRTStartup") #endif enum { // I use this ISceneNode ID to indicate a scene node that is // not pickable by getSceneNodeAndCollisionPointFromRay() ID_IsNotPickable = 0, // I use this flag in ISceneNode IDs to indicate that the // scene node can be picked by ray selection. IDFlag_IsPickable = 1 << 0, // I use this flag in ISceneNode IDs to indicate that the // scene node can be highlighted. In this example, the // homonids can be highlighted, but the level mesh can't. IDFlag_IsHighlightable = 1 << 1 }; //事件接受类 class MyEventReceiver : public IEventReceiver { public: // This is the one method that we have to implement virtual bool OnEvent(const SEvent& event) { // Remember whether each key is down or up if (event.EventType == irr::EET_KEY_INPUT_EVENT) KeyIsDown[event.KeyInput.Key] = event.KeyInput.PressedDown; return false; } // This is used to check whether a key is being held down //这个方法是用来检验哪一个键被按下 virtual bool IsKeyDown(EKEY_CODE keyCode) const { return KeyIsDown[keyCode]; } virtual bool MyEventReceiver() { for (u32 i=0; i<KEY_KEY_CODES_COUNT; ++i) KeyIsDown[i] = false; } private: // We use this array to store the current state of each key //利用此数组来存储每个键的当前状态 bool KeyIsDown[KEY_KEY_CODES_COUNT]; }; //主函数main() int main() { //创建一个设备 IrrlichtDevice *device=createDevice(video::EDT_OPENGL,core::dimension2d<u32>(640,480),32,false,false,false,0); //如果创建不成功 if(!device) { return 1; } //获取食品设备，场景管理器，用户环境指针并存储起来 IVideoDriver *driver=device->getVideoDriver(); ISceneManager *smgr=device->getSceneManager(); IGUIEnvironment *guienv=device->getGUIEnvironment(); //读取模型并显示它 ITexture *image=driver->getTexture("../../media/detailmap3.jpg"); ITexture *imp1=driver->getTexture("../../media/imp1.jpg"); ITexture *imp2=driver->getTexture("../../media/imp2.jpg"); //IAnimatedMesh *mesh=smgr->getMesh("../../media/detailmap3.jpg"); //如果读取不成功 //if (!mesh) //{ // device->drop(); // return 1; // } //IAnimatedMeshSceneNode *node=smgr->addAnimatedMeshSceneNode(mesh); //对模型图片进行属性设置，贴纹理等操作 // if(node) // { // node->setMaterialFlag(EMF_LIGHTING,false); // // node->setMD2Animation(scene::EMAT_STAND); // // node->setMaterialTexture(0,driver->getTexture("../../media/sydney.bmp")); // } // smgr->addCameraSceneNode(0,vector3df(50,20,50),vector3df(10,10,10)); scene::IAnimatedMeshSceneNode* node = 0; scene::IAnimatedMeshSceneNode* anms = smgr->addAnimatedMeshSceneNode(smgr->getMesh("../../media/ninja.b3d")); if (anms) { scene::ISceneNodeAnimator* anim = smgr->createFlyStraightAnimator(core::vector3df(100,0,60), core::vector3df(-100,0,60), 3500, true); if (anim) { anms->addAnimator(anim); anim->drop(); } /* To make the model look right we disable lighting, set the frames between which the animation should loop, rotate the model around 180 degrees, and adjust the animation speed and the texture. To set the right animation (frames and speed), we would also be able to just call "anms->setMD2Animation(scene::EMAT_RUN)" for the 'run' animation instead of "setFrameLoop" and "setAnimationSpeed", but this only works with MD2 animations, and so you know how to start other animations. But a good advice is to not use hardcoded frame-numbers... */ anms->setMaterialFlag(video::EMF_LIGHTING, false); anms->setFrameLoop(0, 13); anms->setAnimationSpeed(15); // anms->setMD2Animation(scene::EMAT_RUN); anms->setScale(core::vector3df(2.f,2.f,2.f)); anms->setRotation(core::vector3df(0,-90,0)); // anms->setMaterialTexture(0, driver->getTexture("../../media/sydney.bmp")); } smgr->addCameraSceneNodeFPS(); device->getCursorControl()->setVisible(false); //添加一个2D场景节点 //IAnimatedMesh *m=smgr->getMesh("../../media/imp1.jpg"); //IAnimatedM