LazyFighters/server/socket-server.js

var constants = require("./game/constants")
var Map = require("./game/map")
var Character = require("./game/character")
var map = new Map(5, 5)
var distance = 100

var onlineNumber = 0

var socketServer = function(server) {
  var io = require("socket.io")(server)
  io.on("connection", function(socket) {
    onlineNumber++
    var player = new Character(map)
    var gameOn = true

    // character init
    socket.emit("attrChange", player.attr)
    socket.emit("positionChange", player.position.toJSON())
    socket.emit("statusChange", player.getStatusData())
    socket.emit("mapChange", player.getMapData())

    // character event
    player.on("log", function(msg) {
      socket.emit("log", msg)
    })

    player.on("attrChange", function(attr) {
      socket.emit("attrChange", attr)
    })

    player.on("positionChange", function(position) {
      socket.emit("positionChange", position)
    })

    player.on("statusChange", function(statusData) {
      socket.emit("statusChange", statusData)
    })

    player.on("mapChange", function(mapData) {
      socket.emit("mapChange", mapData)
    })

    // client event
    socket.on("action", function(data) {
      player.doAction(data)
    })

    socket.on("disconnect", function() {
      map.reset(player.position)
      onlineNumber--
      gameOn = false
    })

    socket.on("client-name", function(data) {
      player.name = data
    })

    socket.on("target", function(data) {
      if(!data)
        return
      if(player.targetPosition && data.x == player.targetPosition.x && data.y == player.targetPosition.y) {
        return
      }
      player.setTarget(data.x, data.y)
    })


    // send network data
    var updateNetwork = function() {
      if(!gameOn) {
        return
      }
      data = {
        onlineNumber: onlineNumber
      }

      socket.emit("network", data)
      setTimeout(updateNetwork, 1000)
    }
    updateNetwork()

    // send game data
    var updateGame = function() {
      if(!gameOn) {
        return
      }

      var timeStart = new Date().getTime()

      var data = {}
      data.hp = Math.floor(player.hp)
      if(player.status == "action") {
        data.progress = player.getProgressData()
      }

      socket.emit("update", data)

      player.update()

      var timeEnd = new Date().getTime()

      var delay = 1000 / constants.fps + timeStart - timeEnd
      if(delay < 0) {
        delay = 0
      }

      if(gameOn) {
        setTimeout(updateGame, delay)
      }
    }
    updateGame()
  })
}

module.exports = socketServer