ogre3D学习基础13键盘控制网格动画mesh

1 MoveDemoListener(RenderWindow *win,Camera *cam,SceneNode *sn,Entity *ent,std::deque &walk)
2 :ExampleFrameListener(win,cam,true,false),mNode(sn),mEntity(ent),mWalkList(walk)
3 {
4 mWalkSpeed &＃61; 0.0f;//行走 速度设为每秒 35 个单位
5 mDirection &＃61; Vector3::ZERO;//可用来判断机器人是否正在行走
6 mMove &＃61; 10;
7 mContinue &＃61; true;
8 mKeyboard->setEventCallback(this);
9 mWalking &＃61; false;
10 }
11
12 　 　bool mWalking;//是否在移动
13 Real mMove;// &＃43; - 移动常量
14 bool mContinue;//是否继续渲染

1 bool keyPressed(const OIS::KeyEvent &e)//
2 {
3 switch(e.key)
4 {
5 case OIS::KC_ESCAPE:
6 mContinue &＃61; false;
7 break;
8 case OIS::KC_ADD://移动速度&＃43;10
9 mWalkSpeed &＃43;&＃61; mMove;
10 break;
11 case OIS::KC_MINUS://移动速度-10
12 mWalkSpeed -&＃61; mMove;
13 break;
14 default:
15 break;
16 }
17 return true;
18 }
19 bool keyReleased(const OIS::KeyEvent &e)//
20 {
21 return true;
22 }

1 bool nextLocation()
2 {
3 if (mWalkList.empty())
4 {
5 mWalking &＃61; false;//不动
6 return false;
7 }
8 mDestination &＃61; mWalkList.front(); //获取第一个元素
9 mWalkList.pop_front(); //弹出一个元素
10 mDirection &＃61; mDestination - mNode->getPosition();//计算距离
11 mDistance &＃61; mDirection.normalise();//转换为单位向量
12 mWalking &＃61; true;//开始移动
13 return true;
14 }

1 bool frameStarted(const FrameEvent &evt)
2 {
3 mKeyboard->capture();
4
5 // if (mDirection &＃61;&＃61; Vector3::ZERO)
6 // {
7 if (!mWalking)//第一次判断是否在走动&＃xff0c;如果没有walk&＃xff0c;就激活
8 {
9 if (nextLocation())//如果行走列表不为空
10 {
11 // 设置行走的动画
12 mAnimationState &＃61; mEntity->getAnimationState("Walk");//设置动画为走动
13 mAnimationState->setLoop(true);//循环执行
14 mAnimationState->setEnabled(true);//激活
15 }
16 }
17 // }
18 else if (mWalking)//如果正在移动&＃xff0c;接着判断
19 //开始 移动
20 {
21 Real move &＃61; mWalkSpeed * evt.timeSinceLastFrame;//速度*时间 &＃61; 移动距离
22 mDistance -&＃61; move;//更新距离
23 if (mDistance <&＃61; 0.0f)//小于0&＃xff0c;说明已经走过目标地点.
24 {
25 mNode->setPosition(mDestination);//重新设置为目的地
26 //mDirection &＃61; Vector3::ZERO;//方向为0&＃xff0c;不走
27 if (! nextLocation())//如果行走列表为空&＃xff0c;没有目的地&＃xff0c;结束
28 {
29 mAnimationState &＃61; mEntity->getAnimationState("Die");//死亡动画
30 mAnimationState->setLoop(false);//设置循环
31 mAnimationState->setEnabled(true);//激活
32 }
33 else //继续走
34 {
35 Vector3 src &＃61; mNode->getOrientation() * Vector3::UNIT_X;//获取实体的当前朝向&＃xff0c;这里有向量的乘积&＃xff0c;如果俩个向量方向相反&＃xff0c;乘积就是-1
36 if ((1.0f &＃43; src.dotProduct(mDirection)) <0.0001f)//如果要旋转180度
37 {
38 mNode->yaw(Degree(180));
39 }
40 else//如果不是要旋转180度
41 {
42 Ogre::Quaternion quat &＃61; src.getRotationTo(mDirection);//获取方向
43 mNode->rotate(quat,Node::TS_LOCAL);//旋转
44 } // else
45 }
46 }
47 else
48 {
49 mNode->translate(mDirection * move);//移动一定距离
50 } // else
51 } // if
52
53 mAnimationState->addTime(evt.timeSinceLastFrame);//更新动画状态
54 //return ExampleFrameListener::frameStarted(evt);
55 return mContinue;//这里接受的是键盘传过来的数据&＃xff0c;为false时&＃xff0c;退出程序
56 }

1 void createScene(void)
2 {
3 mSceneMgr->setAmbientLight( ColourValue( 1.0f, 1.0f, 1.0f ) );
4 mEntity &＃61; mSceneMgr->createEntity( "robot", "robot.mesh" );
5 mNode &＃61; mSceneMgr->getRootSceneNode( )->createChildSceneNode( "NinjaNode", Vector3( 0.0f, 0.0f, 0.0f ) );
6 mNode->attachObject( mEntity );
7
8 //添加行走节点&＃xff0c;这是一个正方形
9 mWalkList.push_back( Vector3( 500.0f, 0.0f, 0.0f ));
10 mWalkList.push_back( Vector3(500.0f, 0.0f,-500.0f ));
11 mWalkList.push_back( Vector3(0.0f, 0.0f,-500.0f ));
12 mWalkList.push_back( Vector3(0,0,0));
13
14 Entity *ent;
15 SceneNode *node;
16 ent &＃61; mSceneMgr->createEntity( "Knot1", "ogrehead.mesh" );
17 node &＃61; mSceneMgr->getRootSceneNode( )->createChildSceneNode( "Knot1Node",Vector3( 0.0f, 0.0f, 0.0f ) );
18 node->attachObject( ent );
19 node->setScale( 0.51f, 0.51f, 0.51f );//缩小
20
21 ent &＃61; mSceneMgr->createEntity( "Knot2", "ogrehead.mesh" );
22 node &＃61; mSceneMgr->getRootSceneNode( )->createChildSceneNode( "Knot2Node",Vector3( 500.0f, 0.0f, 0.0f ) );
23 node->attachObject( ent );
24 node->setScale( 0.51f, 0.51f, 0.51f );//缩小
25
26 ent &＃61; mSceneMgr->createEntity( "Knot3", "ogrehead.mesh" );
27 node &＃61; mSceneMgr->getRootSceneNode( )->createChildSceneNode( "Knot3Node",Vector3(500.0f, 0.0f,-500.0f ) );
28 node->attachObject( ent );
29 node->setScale( 0.51f, 0.51f, 0.51f );//缩小
30
31 ent &＃61; mSceneMgr->createEntity( "Knot4", "ogrehead.mesh" );
32 node &＃61; mSceneMgr->getRootSceneNode( )->createChildSceneNode( "Knot4Node",Vector3(0.0f,0.0f,-500.0f ) );
33 node->attachObject( ent );
34 node->setScale( 0.51f, 0.51f, 0.51f );//缩小
35
36 mCamera->setPosition(150.0f, 450.0f,450.0f );
37 mCamera->pitch( Degree(-45.0f) );
38 mCamera->yaw( Degree(-15.0f) );
39
40 }

1 bool nextLocation()
2 {
3 if (mWalkList.empty())
4 {
5 mWalking &＃61; false;//不动
6 return false;
7 }
8 mDestination &＃61; mWalkList.front(); //
9 mWalkList.pop_front(); //
10 mWalkList.push_back(mDestination);//这一行是新增加的&＃xff0c;每次取出一个点后&＃xff0c;就将其添加到链表末尾
11 mDirection &＃61; mDestination - mNode->getPosition();
12 mDistance &＃61; mDirection.normalise();
13 mWalking &＃61; true;//开始移动
14 return true;
15 }