fdkk_meta/src/main/java/com/fdkk/fdkkmeta/grpcService/sceneGrpcServer.java

package com.fdkk.fdkkmeta.grpcService;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.ObjectUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.fdkk.fdkkmeta.config.MetaConfig;
import com.fdkk.fdkkmeta.domain.dto.RouteDto;
import com.fdkk.fdkkmeta.domain.entity.mysql.BreakpointsEntity;
import com.fdkk.fdkkmeta.domain.entity.mysql.RotateFrameEntity;
import com.fdkk.fdkkmeta.domain.entity.mysql.MoveFrameEntity;
import com.fdkk.fdkkmeta.domain.entity.mysql.UserEntity;
import com.fdkk.fdkkmeta.domain.po.AnglePO;
import com.fdkk.fdkkmeta.domain.po.PointPO;
import com.fdkk.fdkkmeta.grpc.*;
import com.fdkk.fdkkmeta.redis.RedisCache;
import com.fdkk.fdkkmeta.service.BreakpointsService;
import com.fdkk.fdkkmeta.service.MoveFrameService;
import com.fdkk.fdkkmeta.service.RotateFrameService;
import com.fdkk.fdkkmeta.service.UserService;
import com.fdkk.fdkkmeta.util.ProtoJsonUtils;
import com.fdkk.fdkkmeta.util.kesar.GetRoute;
import com.google.protobuf.Message;
import com.googlecode.protobuf.format.JsonFormat;
import io.grpc.stub.StreamObserver;
import lombok.extern.slf4j.Slf4j;
import net.devh.boot.grpc.server.service.GrpcService;
import org.springframework.beans.factory.annotation.Autowired;

import java.io.File;
import java.io.IOException;
import java.util.List;

/**
 * @author Xiewj
 * @date 2022/5/9
 */
@GrpcService
@Slf4j
public class sceneGrpcServer extends SceneGrpcServiceGrpc.SceneGrpcServiceImplBase {
    @Autowired
    MetaConfig metaConfig;

    @Autowired
    UserService userService;

    @Autowired
    BreakpointsService breakpointsService;
    @Autowired
    RotateFrameService rotateFrameService;

    @Autowired
    MoveFrameService moveFrameService;

    @Autowired
    RedisCache redisCache;


    /***
     *     回复 案例
     *    SceneReply res = SceneReply.newBuilder().setRes(id+","+name).build();
     *         responseObserver.onNext(res);
     */
    /*
    @Override
    public void testMethod(SceneRequest request, StreamObserver<SceneReply> responseObserver) {
        // grpc服务端获取调用端请求参数
        String id = request.getId();
        String name = request.getName();
        // 这里可以有自己的业务代码，只需要按照porto中的返回类型返回参数即可
        SceneReply res = SceneReply.newBuilder().setRes(id+","+name).build();
        responseObserver.onNext(res);
        responseObserver.onCompleted();
        log.info("回复{}",res);

    }
    */
    @Override
    public void getRoute(RouteRequest request, StreamObserver<RouteReply> responseObserver)   {
        // grpc服务端获取调用端请求参数
        String sceneCode = request.getSceneCode();
        Point sLocation = request.getSLocation();
        Point eLocation = request.getELocation();
        RouteDto po=new RouteDto();
        PointPO s=new PointPO();
        s.setX(Double.parseDouble(sLocation.getX()));
        s.setY(Double.parseDouble(sLocation.getY()));
        s.setZ(Double.parseDouble(sLocation.getY()));
        PointPO e=new PointPO();
        e.setX(Double.parseDouble(eLocation.getX()));
        e.setY(Double.parseDouble(eLocation.getY()));
        e.setZ(Double.parseDouble(eLocation.getY()));
        po.setE_location(e);
        po.setS_location(s);
        po.setSceneCode(sceneCode);
        JSONArray maps = GetRoute.getRoute(metaConfig.getFreespacePath()+ File.separator +"target_freespace.json", po);
        // 这里可以有自己的业务代码，只需要按照porto中的返回类型返回参数即可
        RouteReply.Builder builder = RouteReply.newBuilder();
        if (ArrayUtil.isNotEmpty(maps)) {
            for (int i = 0; i < maps.size(); i++) {
                RouteArray.Builder addInBuilder = builder.addInBuilder();
                ProtoJsonUtils.toProtoBean(addInBuilder, maps.get(i).toString());
            }

        }
        responseObserver.onNext(builder.build());
        responseObserver.onCompleted();
    }

    @Override
    public void init(InitRequest request, StreamObserver<NormalReply> responseObserver)   {
    	try {
    		String user_id = request.getUserId();
    		String nick_name = request.getNickName();
    		String skin_id = request.getSkinId();
    		String avatar_id = request.getAvatarId();
    		String room_id = request.getRoomId();
    		String app_id = request.getAppId();
            //保存user
            UserEntity userEntity=new UserEntity();

            userEntity.setAppId(app_id);
            userEntity.setAvatarId(avatar_id);
            userEntity.setNickName(nick_name);
            userEntity.setRoomId(room_id);
            userEntity.setSkinId(skin_id);
            userEntity.setFrameId(0L);
            userEntity.setBreakPointId(0L);

          //初始化的时候可以写死
            AnglePO player_angle = new AnglePO();
            player_angle.setPitch(0);
            player_angle.setYaw(0);
            player_angle.setRoll(0);
            userEntity.setPlayerAngle(player_angle);
            userService.save(userEntity);
    	}
    	catch(Exception e) {
    		e.printStackTrace();
    	}
    }

    @Override
    public void rotate(RotateRequest request, StreamObserver<NormalReply> responseObserver)   {
    	try {
    		/*
    		{
    			"action_type":1014,
    			"rotation_action":
    			{
    				"vertical_move":0,
    				"horizontal_move":-0.020630372492836675
    			},
    			"trace_id":"b40a894e-cd59-4db5-8d75-a8466a0c9f15",
    			"user_id":"0a3987974feb4"
    		}
    		*/
    		int action_type = request.getActionType();
    		String trace_id = request.getTraceId();
    		String user_id = request.getUserId();
    		RotationAction rotation_action = request.getRotationAction();
    		double horizontal_move = rotation_action.getHorizontalMove();

    		//这三个变量从user表和rotateframe表里取
            UserEntity user = userService.findUserId(user_id);
			Long breakPointId = user.getBreakPointId();
            BreakpointsEntity breakpointsEntity = breakpointsService.findByAppIdAndBreakPointId(user.getAppId(),breakPointId);
            RotateFrameEntity rotateFrameEntity = rotateFrameService.findById(user.getFrameId());

            PointPO playerPoint = breakpointsEntity.getPosition();
            Point playerPosition = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));
            AnglePO playerAnglePO = user.getPlayerAngle();
            AngleUe4 playerAngle = createAngle(playerAnglePO.getPitch(),playerAnglePO.getYaw(),playerAnglePO.getRoll());
            Space player = createSpace(playerPosition,playerAngle);

    		double hAngle = horizontal_move * 90;
    		int offFrameIndex = (int)Math.ceil(hAngle);
    		int currentFrame = rotateFrameEntity.getFrameIndex();      //从数据库里读取
    		currentFrame +=offFrameIndex;
			if(currentFrame<0){
				currentFrame+=360;
			}
    		else{
				currentFrame = currentFrame % 359;
			}
    		//currentFrame
			log.info("currentFrame{}",currentFrame);
			String appId = user.getAppId();
			rotateFrameEntity = rotateFrameService.findByAppIdAndBreakPointIdAndFrameIndex(appId,breakPointId,currentFrame);
			PointPO cameraPoint = rotateFrameEntity.getCameraPosition();
			Point cameraPosition = createPoint(String.valueOf(cameraPoint.getX()),String.valueOf(cameraPoint.getY()),String.valueOf(cameraPoint.getZ()));
			AnglePO cameraAnglePO = rotateFrameEntity.getCameraAngle();
            AngleUe4 cameraAngle = createAngle(cameraAnglePO.getPitch(),cameraAnglePO.getYaw(),cameraAnglePO.getRoll());
    		Space camera = createSpace(cameraPosition,cameraAngle);

    		//对准player
    		Point cameraCenter = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));

    		State playerState = createPlayerState( player, camera, cameraCenter);
    		RenderInfo renderInfo = createRenderInfo();
    		Event event = createEvent();
    		UserState userState = createUserState( user_id, playerState, renderInfo, event);

    		String frameSrc = metaConfig.getVideoFramePath()+"/"+rotateFrameEntity.getDirectory()+"/"+rotateFrameEntity.getFileName();
            /// metaConfig.getVideoFramePath()
            log.info("VideoFramePath{}", metaConfig.getVideoFramePath());
			NormalReply res = NormalReply.newBuilder()
    				.addTraceIds( trace_id)
    				//.setVehicle(null)
    				.addNewUserStates(userState)
    				.addActionResponses(0)              //这个要查查
    				.setGetStateType(0)
    				.setCode(0)
    				.setMsg("OK")
    				.setFrameSrc(frameSrc)                     //从数据库中获取对应的路径
    				.build();


	        responseObserver.onNext(res);
	        responseObserver.onCompleted();
    	}
    	catch(Exception e) {
    		e.printStackTrace();
    	}
    }


    //返回的是角度矫正数据
    @Override
    public void moveStart(StartMoveRequest request, StreamObserver<MoveReply> responseObserver)   {
     	try {
        	/*
        	 * 1.从user表里获得当前人物所在的breakPoint_id
        	 * 2.根据breakPoint_id，从breakpoints表里获得对应的起始坐标
        	 * 3.根据request中的clicking_action里的clicking_point（目的地）以及当前起始坐标计算出路径
        	 * 4.返回整个路径的一段
        	 *
        	 * */
     		int action_type= request.getActionType();
     		ClickingAction clicking_action = request.getClickingAction();
     		Point end = clicking_action.getClickingPoint();
     		State clicking_state = request.getClickingState();
     		String trace_id = request.getTraceId();
     		String user_id = request.getUserId();

            UserEntity user = userService.findUserId(user_id);
            String appId = user.getAppId();
			Long breakPointId = user.getBreakPointId();
			BreakpointsEntity breakpointsEntity = breakpointsService.findByAppIdAndBreakPointId(appId,breakPointId);
            RotateFrameEntity rotateFrameEntity = rotateFrameService.findById(user.getFrameId());

            Point start = null;    //从user表里取

            boolean isEnd = false;
     		//计算路径
            RouteDto po=new RouteDto();
            PointPO s=new PointPO();
            s.setX(Double.parseDouble(start.getX()));
            s.setY(Double.parseDouble(start.getY()));
            s.setZ(Double.parseDouble(start.getY()));
            PointPO e=new PointPO();
            e.setX(Double.parseDouble(end.getX()));
            e.setY(Double.parseDouble(end.getY()));
            e.setZ(Double.parseDouble(end.getY()));
            po.setE_location(e);
            po.setS_location(s);
            po.setSceneCode(appId);
            JSONArray maps = GetRoute.getRoute(metaConfig.getFreespacePath()+ File.separator +appId+"_target_freespace.json", po);
            //处理路径数组，处理完成后放入缓存
			//获得下一个要走的breakPointId
			Long nextbreakPointId = 0L;
			if (ObjectUtil.isNotNull(maps)&&maps.size()>=2){
				nextbreakPointId = JSON.parseObject(JSONObject.toJSON(maps.get(1)).toString()).getLong("id");
				maps.remove(0);
				redisCache.setCacheObject("route:"+trace_id,maps);
			}
			else {
				isEnd = true;
			}



     		//开始返回结果，一段一段的返回（每段是两个邻居点的过渡），第一段之前还要有角度的矫正
     		//矫正的结果：
            //moveFrameService.findById()
            PointPO playerPoint = breakpointsEntity.getPosition();
            Point playerPosition = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));
            AnglePO playerAnglePO = user.getPlayerAngle();
            AngleUe4 playerAngle = createAngle(playerAnglePO.getPitch(),playerAnglePO.getYaw(),playerAnglePO.getRoll());
            Space player = createSpace(playerPosition,playerAngle);

            AnglePO cameraAnglePO = rotateFrameEntity.getCameraAngle();

            int angle = cameraAnglePO.getYaw();
            int offAngle = 0;
            offAngle = angle%45;
            if(offAngle>45-offAngle) {
            	offAngle = 45-offAngle;
            }
            else {
            	offAngle = -1*offAngle;
            }
			List<RotateFrameEntity> rotateFrameEntityList = rotateFrameService.findByAppIdAndBreakPointIdBetweenFrameIndex(appId, breakPointId, angle, offAngle + angle);
			//循环
            for(int i=0;i<rotateFrameEntityList.size();++i) {
            	RotateFrameEntity _rotateFrameEntity = rotateFrameEntityList.get(i);
            	PointPO cameraPoint = _rotateFrameEntity.getCameraPosition();
                Point cameraPosition = createPoint(String.valueOf(cameraPoint.getX()),String.valueOf(cameraPoint.getY()),String.valueOf(cameraPoint.getZ()));
                AngleUe4 cameraAngle = createAngle(cameraAnglePO.getPitch(),cameraAnglePO.getYaw(),cameraAnglePO.getRoll());
                Space camera = createSpace(cameraPosition,cameraAngle);

            	Point cameraCenter = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));
            	String frameSrc = metaConfig.getVideoFramePath()+"/"+_rotateFrameEntity.getDirectory()+"/"+_rotateFrameEntity.getFileName();
            	//添加player，camera，cameraCenter，frameSrc

            }

            breakpointsEntity = breakpointsService.findByAppIdAndBreakPointId(appId,nextbreakPointId);
            PointPO endPosition = breakpointsEntity.getPosition();

            JSONObject p1 = new JSONObject();
            p1.put("x", playerPoint.getX());
            p1.put("y", playerPoint.getY());

            JSONObject p2 = new JSONObject();
			p2.put("x", playerPoint.getX()+1);
			p2.put("y", playerPoint.getY());

            JSONObject p3 = new JSONObject();
			p3.put("x",endPosition.getX());
			p3.put("y",endPosition.getY());

			int _playerAngle = (int)calAngle(p1,p2,p3);

            List<MoveFrameEntity> moveFrameEntityList = moveFrameService.findByAppIAndStartBreakPointIdAndEndBreakPointIdAndAngle(appId, breakPointId, nextbreakPointId, (int)(offAngle + angle)/45);

            double offsetX = endPosition.getX() - playerPoint.getX();
            double offsetY = endPosition.getY() - playerPoint.getY();
            double offsetZ = endPosition.getZ() - playerPoint.getZ();

            for(int i=0;i<moveFrameEntityList.size();++i) {
            	MoveFrameEntity _moveFrameEntityList = moveFrameEntityList.get(i);
            	PointPO cameraPoint = _moveFrameEntityList.getCameraPosition();
            	Point cameraPosition = createPoint(String.valueOf(cameraPoint.getX()),String.valueOf(cameraPoint.getY()),String.valueOf(cameraPoint.getZ()));
            	AngleUe4 cameraAngle = createAngle(cameraAnglePO.getPitch(),cameraAnglePO.getYaw(),cameraAnglePO.getRoll());
                Space camera = createSpace(cameraPosition,cameraAngle);

            	Point cameraCenter = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));
            	String frameSrc = metaConfig.getVideoFramePath()+"/"+_moveFrameEntityList.getDirectory()+"/"+_moveFrameEntityList.getFileName();

            	Point _playerPosition = createPoint(String.valueOf(playerPoint.getX()+offsetX/moveFrameEntityList.size()),String.valueOf(playerPoint.getY()+offsetY/moveFrameEntityList.size()),String.valueOf(playerPoint.getZ()+offsetZ/moveFrameEntityList.size()));
            	//Space _player = createSpace(_playerPosition,_playerAngle);
            	//添加player，camera，cameraCenter，frameSrc
            }

//          PointPO cameraPoint = rotateFrameEntity.getCameraPosition();
//          Point cameraPosition = createPoint(String.valueOf(cameraPoint.getX()),String.valueOf(cameraPoint.getY()),String.valueOf(cameraPoint.getZ()));
//          AngleUe4 cameraAngle = createAngle(cameraAnglePO.getPitch(),cameraAnglePO.getYaw(),cameraAnglePO.getRoll());
//          Space camera = createSpace(cameraPosition,cameraAngle);

//        	Point cameraCenter = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));
//    		State playerState = createPlayerState( player, camera, cameraCenter);
    		State playerState = createPlayerState( player, null, null);
    		RenderInfo renderInfo = createRenderInfo();
    		Event event = createEvent();
    		UserState userState = createUserState( user_id, playerState, renderInfo, event);

    		MoveReply res = MoveReply.newBuilder()
    				.setTraceIds(0, trace_id)
    				.setVehicle(null)
    				.setNewUserStates(0, userState)
    				.setActionResponses(0, 0)              //这个要查查
    				.setGetStateType(0)
    				.setCode(0)
    				.setMsg("OK")
			    				//.setPlayer(index, value)
			    				//.setCamera(index, value)
			    				//.setCameraCenter(index, value)
			    				//.setFrameSrc(index, value)
    				.setIsEnd(isEnd)
    				.build();
    	}
    	catch(Exception e) {
    		e.printStackTrace();
    	}
    }

    @Override
    public void moveProcess(MoveNextNeighborRequest request, StreamObserver<MoveReply> responseObserver)   {
     	try {
        	/*
        	 * 1.从user表里获得当前人物所在的breakPoint_id
        	 * 2.根据breakPoint_id，从breakpoints表里获得对应的起始坐标
        	 * 3.根据request中的clicking_action里的clicking_point（目的地）以及当前起始坐标计算出路径
        	 * 4.返回整个路径的一段
        	 *
        	 * */
     		String user_id = request.getUserId();
     		String trace_id = request.getTraceId();
     		boolean needNext = request.getNext();

     		boolean isEnd = false;

            UserEntity user = userService.findUserId(user_id);
            BreakpointsEntity breakpointsEntity = breakpointsService.findByAppIdAndBreakPointId(user.getAppId(),user.getBreakPointId());
            RotateFrameEntity rotateFrameEntity = rotateFrameService.findById(user.getFrameId());
     		//moveStart的结果参考moveStart
     		//开始返回结果，一段一段的返回（每段是两个邻居点的过渡），第一段之前还要有角度的矫正
     		//矫正的结果：
            //moveFrameService.findById()
            PointPO playerPoint = breakpointsEntity.getPosition();
            Point playerPosition = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));
            AnglePO playerAnglePO = user.getPlayerAngle();
            AngleUe4 playerAngle = createAngle(playerAnglePO.getPitch(),playerAnglePO.getYaw(),playerAnglePO.getRoll());
            Space player = createSpace(playerPosition,playerAngle);

            AnglePO cameraAnglePO = rotateFrameEntity.getCameraAngle();

            int angle = cameraAnglePO.getYaw();
            int offAngle = 0;
            offAngle = angle%45;
            if(offAngle>45-offAngle) {
            	offAngle = 45-offAngle;
            }
            else {
            	offAngle = -1*offAngle;
            }
			Long nextbreakPointId = 0L;
			// 从缓存里面取 JSONArray cacheObject = redisCache.getCacheObject(trace_id);
			if (needNext&&redisCache.hasKey(trace_id)){
				JSONArray cacheObject = redisCache.getCacheObject(trace_id);
				if (cacheObject.size()>=2){
					 nextbreakPointId = JSON.parseObject(JSONObject.toJSON(cacheObject.get(1)).toString()).getLong("id");
					cacheObject.remove(0);
					redisCache.setCacheObject("route:"+trace_id,cacheObject);
				}
				else {
					isEnd = true;
				}
			}
			else {
				isEnd = true;
			}

			//循环
            //for()

            PointPO cameraPoint = rotateFrameEntity.getCameraPosition();
            Point cameraPosition = createPoint(String.valueOf(cameraPoint.getX()),String.valueOf(cameraPoint.getY()),String.valueOf(cameraPoint.getZ()));
            AngleUe4 cameraAngle = createAngle(cameraAnglePO.getPitch(),cameraAnglePO.getYaw(),cameraAnglePO.getRoll());
            Space camera = createSpace(cameraPosition,cameraAngle);

        	Point cameraCenter = createPoint(String.valueOf(playerPoint.getX()),String.valueOf(playerPoint.getY()),String.valueOf(playerPoint.getZ()));
    		State playerState = createPlayerState( player, camera, cameraCenter);
    		RenderInfo renderInfo = createRenderInfo();
    		Event event = createEvent();
    		UserState userState = createUserState( user_id, playerState, renderInfo, event);
    		MoveReply res = MoveReply.newBuilder()
    				.setTraceIds(0, trace_id)
    				.setVehicle(null)
    				.setNewUserStates(0, userState)
    				.setActionResponses(0, 0)              //这个要查查
    				.setGetStateType(0)
    				.setCode(0)
    				.setMsg("OK")
    				//.setPlayer(index, value)
    				//.setCamera(index, value)
    				//.setCameraCenter(index, value)
    				//.setFrameSrc(index, value)
    				.setIsEnd(isEnd)
    				.build();
    	}
    	catch(Exception e) {
    		e.printStackTrace();
    	}
    }

    @Override
    public void getBreakPoint(BreakPointRequest request, StreamObserver<BreakPointReply> responseObserver)   {
     	try {
            log.info("进入{}",request);

            int action_type = request.getActionType();
            NeighborPointsAction get_neighbor_points_action = request.getGetNeighborPointsAction();
     		String trace_id = request.getTraceId();
     		String user_id = request.getUserId();

     		//从表breakpoints里获取所有的呼吸点，并且是数组
            //TODO 根据查询所有
            UserEntity userEntity = userService.findUserId(user_id);
            List<BreakpointsEntity> allList = breakpointsService.findByAppId(userEntity.getAppId());

            Point[] nps=null;
            BreakPointReply res = BreakPointReply.newBuilder()
     				.setActionType(action_type)
     				.setPointType(100)
     				.setExtra("")
     				.setTraceId(trace_id)
     				.setPacketId("")
     				//.setNps(nps)
     				.setPeopleNum(0)
     				.setZoneId("")
     				.setEchoMsg("")
     				.setReserveDetail(null)
     				//.setUserWithAvatarList()
     				//.setNewUserStates()
     				.setCode(0)
     				.setMsg("")
     				.build();
            responseObserver.onNext(res);
            responseObserver.onCompleted();
            log.info("回复{}",res);
    	}
    	catch(Exception e) {
    		e.printStackTrace();
    	}
    }

    //操作杆
    @Override
    public void joystick(JoystickRequest request, StreamObserver<NormalReply> responseObserver)   {
     	try {
            log.info("进入{}",request);
        	/*
    		{
    			"action_type": 15,
    			"dir_action": {
    				"move_angle": 276,
    				"speed_level": 8
    			},
    			"trace_id": "d0a45ade-b674-47dc-a546-36e981c78ae8",
    			"user_id": "7ef177cb55c91",
    			"packet_id": "d3a3b46a-33cf-486f-b8aa-36b26f786eeb"
    		}
    		*/
            int actionType = request.getActionType();
            DirAction dirAction = request.getDirAction();

     		String trace_id = request.getTraceId();
     		String user_id = request.getUserId();
     		String packet_id = request.getPacketId();

     		UserEntity user = userService.findUserId(user_id);
     		Long breakPointId = user.getBreakPointId();
     		//获得当前点所有邻居点
			//TODO 获取棋盘邻居点 getContact
			BreakpointsEntity breakpointsEntity = breakpointsService.findByAppIdAndBreakPointId(user.getAppId(), breakPointId);
			log.info("breakpointsEntity-getContact",breakpointsEntity.getContact());
			//找到与角度move_angle最近的邻居点
     		//移动player，并且更新相机角度

    	}
    	catch(Exception e) {
    		e.printStackTrace();
    	}
    }

    private UserState createUserState(String user_id,State state,RenderInfo renderInfo,Event event) {
    	UserState userState = UserState.newBuilder()
				.setUserId(user_id)
				.setPlayerState(state)
				.setRenderInfo(renderInfo)
				.setEvent(event)
				.setRelation(1)
				.build();
    	return userState;
    }

    private State createPlayerState(Space player,Space camera,Point cameraCenter) {
    	State playerState = State.newBuilder()
    			.setRoomTypeId("")
    			.setPerson(0)
    			.setAvatarId("")
    			.setSkinId("")
    			.setRoomId("")
    			.setIsHost(false)
    			.setIsFollowHost(false)
    			.setSkinDataVersion("")
    			.setAvatarComponents("")
    			.setNickName("")
    			.setMovingMode(0)
    			.setAttitude("")
    			.setAreaName("")
    			.setPathName("")
    			.setPathId("")
    			.setAvatarSize(1)
    			.setExtra("")
    			.setPrioritySync(false)
    			.setPlayer(player)
    			.setCamera(camera)
    			.setCameraCenter(cameraCenter).build();
    	return playerState;
    }

    private RenderInfo createRenderInfo() {
    	RenderInfo renderInfo = RenderInfo.newBuilder()
    			.setRenderType(0)
    			.setVideoFrame("")
    			.setCameraStateType(0)
    			.setIsMoving(0)
    			.setNeedIfr(0)
    			.setIsVideo(0)
    			.setStillFrame(0)
    			.setIsRotating(0)
    			.setIsFollowing(0)
    			.setClientPanoTreceId("")
    			.setPrefetchVideoId("")
    			.setNoMedia(false).build();
    	return renderInfo;
    }

    private Event createEvent() {
    	Event event = Event.newBuilder().setId("").setType(0).build();
    	return event;
    }

    private Space createSpace(Point position,AngleUe4 angle) {
    	Space space = Space.newBuilder().setPosition(position).setAngle(angle).build();
    	return space;
    }

    private Point createPoint(String x,String y,String z) {
    	Point point = Point.newBuilder().setX(x).setY(y).setZ(z).build();
    	return point;
    }

    private AngleUe4 createAngle(int pitch,int yaw,int roll) {
    	AngleUe4 angle = AngleUe4.newBuilder().setPitch(pitch).setYaw(yaw).setRoll(roll).build();
    	return angle;
    }

    /**
     * 根据余弦定理计算线段1到线段2的夹角，线段1：起始点到原点，线段2：原点到结束点）
     * @param o 原点
     * @param s 起始点
     * @param e 结束点
     * @return
     */
    private double calAngle(JSONObject o, JSONObject s, JSONObject e) {
        double cosfi = 0;
        double fi = 0;
        double norm = 0;
        double dsx = s.getDoubleValue("x") - o.getDoubleValue("x");
        double dsy = s.getDoubleValue("y") - o.getDoubleValue("y");
        double dex = e.getDoubleValue("x") - o.getDoubleValue("x");
        double dey = e.getDoubleValue("y") - o.getDoubleValue("y");
        cosfi = dsx * dex + dsy * dey;
        norm = (dsx * dsx + dsy * dsy) * (dex * dex + dey * dey);
        cosfi /= Math.sqrt(norm);
        if (cosfi >= 1.0) return 0;
        if (cosfi <= -1.0) return Math.PI;
        fi = Math.acos(cosfi);
        if (180 * fi / Math.PI < 180) {
            return 180 * fi / Math.PI;
        } else {
            return 360 - 180 * fi / Math.PI;
        }
    }
}