Method SyncSurrounding

zinx_app_demo/mmo_game/core/player.go:87–150

SyncSurrounding Broadcast the player's position to the surrounding players in the same grid 给当前玩家周边的(九宫格内)玩家广播自己的位置，让他们显示自己

()

// SyncSurrounding Broadcast the player's position to the surrounding players in the same grid
// 给当前玩家周边的(九宫格内)玩家广播自己的位置，让他们显示自己
func (p *Player) SyncSurrounding() {
	//1 Get pIDs of players in the surrounding nine grids based on the player's position
	// 根据自己的位置，获取周围九宫格内的玩家pID
	pIDs := WorldMgrObj.AoiMgr.GetPIDsByPos(p.X, p.Z)

	// 2 Get all player objects based on the pIDs
	// 根据pID得到所有玩家对象
	players := make([]*Player, 0, len(pIDs))

	// 3 Send MsgID:200 message to these players to display themselves in each other's views
	// 给这些玩家发送MsgID:200消息，让自己出现在对方视野中
	for _, pID := range pIDs {
		players = append(players, WorldMgrObj.GetPlayerByPID(int32(pID)))
	}

	// 3.1 Assemble MsgID200 proto data
	// 组建MsgID200 proto数据
	msg := &pb.BroadCast{
		PID: p.PID,
		Tp:  2, //TP:2 represents broadcasting coordinates (广播坐标)
		Data: &pb.BroadCast_P{
			P: &pb.Position{
				X: p.X,
				Y: p.Y,
				Z: p.Z,
				V: p.V,
			},
		},
	}

	// 3.2 Send the 200 message to each player's client to display characters
	// 每个玩家分别给对应的客户端发送200消息，显示人物
	for _, player := range players {
		player.SendMsg(200, msg)
	}
	// 4 Make surrounding players in the nine grids appear in the player's view
	// 让周围九宫格内的玩家出现在自己的视野中

	// 4.1 Create Message SyncPlayers data
	// 制作Message SyncPlayers 数据
	playersData := make([]*pb.Player, 0, len(players))
	for _, player := range players {
		p := &pb.Player{
			PID: player.PID,
			P: &pb.Position{
				X: player.X,
				Y: player.Y,
				Z: player.Z,
				V: player.V,
			},
		}
		playersData = append(playersData, p)
	}

	// 4.2 Encapsulate SyncPlayers protobuf data
	// 封装SyncPlayer protobuf数据
	SyncPlayersMsg := &pb.SyncPlayers{
		Ps: playersData[:],