Ogre_初学指导_8_"模型动画：简单人物动画"

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模型动画：简单人物动画

实现简单的人物动画：

1、设置动画状态：AnimationState

Ogre::AnimationState* _aniState;

2、获取模型实体的动画效果：getAnimationState

_aniState = mEntity->getAnimationState(“Dance”);//以Sinbad模型为例，其含有Dance动作,mEntity为Entity类型

3、动画效果开启：setEnabled

_aniState->setEnabled(true);//开启
//也可添加动作循环执行
_aniState->setLoop(true);

4、添加动画执行时间：addTime

在frameStarted()中添加事件：_aniState->addTime(evt.timeSinceLastFrame);
动画的运动时间：evt.timeSinceLastFrame是指自上一帧到现在过去的时间，如果我们将其*0.1，则表示动画运动的时间变少，其会放慢执行，即实现了慢动作。

代码：（代码是不断添加的，它会包含上面章节的内容，要看注释以确定代码位置及作用）

#include "ExampleApplication.h"

using namespace Ogre;

class MyFrameListener : public Ogre::FrameListener

{

private:

SceneNode*mNode;

Entity*_ent;

AnimationState*_aniState;

OIS::InputManager*_man;

OIS::Keyboard*_key;

OIS::Mouse*_mouse;

Camera*_Camera;

PolygonMode_PolyMode;

Timer _timer;

public:

MyFrameListener(SceneNode*node, RenderWindow* win, Camera* cam, Entity* ent)

{

mNode= node;

_Camera= cam;

_ent= ent;

size_twindowHnd = 0;

std::stringstreamwindowHndStr;

win->getCustomAttribute("WINDOW",&windowHnd);

windowHndStr<< windowHnd;//类型转换

//创建输入系统

OIS::ParamListpl;

pl.insert(std::make_pair(std::string("WINDOW"),windowHndStr.str()));

_man= OIS::InputManager::createInputSystem(pl);

_key= static_cast<OIS::Keyboard*>(_man->createInputObject(OIS::OISKeyboard,false));

_mouse= static_cast<OIS::Mouse*>(_man->createInputObject(OIS::OISMouse, false));

//设置渲染模式

_PolyMode= Ogre::PolygonMode::PM_SOLID;

//计时器

_timer.reset();

//添加动画

addAnimation(_ent);

}

~MyFrameListener()

{

_man->destroyInputObject(_key);//销毁键盘

_man->destroyInputObject(_mouse);//销毁鼠标

OIS::InputManager::destroyInputSystem(_man);

}

void changePolygonMode(OIS::KeyCodekeynum = OIS::KC_R)

{

if(_key->isKeyDown(keynum) && _timer.getMilliseconds() > 250)//大于0.25秒

{

_timer.reset();

switch(_PolyMode)

{

casePM_SOLID: _PolyMode = Ogre::PolygonMode::PM_WIREFRAME;

break;

casePM_WIREFRAME: _PolyMode = Ogre::PolygonMode::PM_POINTS;

break;

casePM_POINTS: _PolyMode = Ogre::PolygonMode::PM_SOLID;

break;

default:

break;

}

_Camera->setPolygonMode(_PolyMode);

}

void addAnimation(Entity*ent)

{

_aniState= ent->getAnimationState("Dance");

_aniState->setEnabled(true);

_aniState->setLoop(true);

}

bool frameStarted(constOgre::FrameEvent &evt)

{

_key->capture();

_mouse->capture();

//Mousestate

floatrotX = _mouse->getMouseState().X.rel * evt.timeSinceLastFrame * -1;

floatrotY = _mouse->getMouseState().Y.rel * evt.timeSinceLastFrame * -1;

//changethe Camera position

_Camera->yaw(Ogre::Radian(rotX));

_Camera->pitch(Ogre::Radian(rotY));

//_Camera->moveRelative(Vector3(10,0,0)* evt.timeSinceLastFrame * 10);

if(_key->isKeyDown(OIS::KC_ESCAPE))

{

returnfalse;

}

//改变渲染模式

changePolygonMode();

//模型节点更新位置

//mNode->translate(Vector3(10,0,0)* evt.timeSinceLastFrame);

//动画

_aniState->addTime(evt.timeSinceLastFrame);

returntrue;

}

};

class example1 : public ExampleApplication

{

public:

example1()

{

mFrameListener= NULL;

}

~example1()

{

if(mFrameListener)

{

deletemFrameListener;

}

protected:

void createScene()

{

//add a plane

Planeplane(Vector3::UNIT_Y, -10);

Ogre::MeshManager::getSingleton().createPlane("plane",ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, plane, 1500, 1500, 200,200, true,1, 5,5,Vector3::UNIT_Z);

Entity*ent = mSceneMgr->createEntity("LightPlaneEntity","plane");

mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(ent);

ent->setMaterialName("Examples/BeachStones");

//adda light

Light*light = mSceneMgr->createLight("Light1");

light->setType(Ogre::Light::LT_DIRECTIONAL);

light->setDirection(Vector3(1,-1,0));

//addModel

SceneNode*node = mSceneMgr->createSceneNode("Node1");

mSceneMgr->getRootSceneNode()->addChild(node);

mSinbad= mSceneMgr->createEntity("Sinbad", "Sinbad.mesh");

mSinbadNode= node->createChildSceneNode("SinbadNode");

mSinbadNode->setScale(3.0f,3.0f,3.0f);

mSinbadNode->setPosition(Vector3(0,4.0f,0));

mSinbadNode->attachObject(mSinbad);

//addShadow

mSceneMgr->setShadowTechnique(SHADOWTYPE_STENCIL_ADDITIVE);

}

void createCamera()

{

mCamera= mSceneMgr->createCamera("MyCamera1");

mCamera->setPosition(0,100,200);

mCamera->lookAt(0,0,0);

mCamera->setNearClipDistance(5);

}

void createFrameListener()

{

mFrameListener= new MyFrameListener(mSinbadNode, mWindow, mCamera, mSinbad);

mRoot->addFrameListener(mFrameListener);

}

private:

Entity*mSinbad;

SceneNode*mSinbadNode;

FrameListener*mFrameListener;

};

int main()

{

example1ex1;

ex1.go();

return 0;

}