所以现在我有一个我正在制作的游戏,每当有人连接时,我给他们的客户一个我的服务器用来区分不同角色的号码。字符是数组中的对象,因此ID为“0”的客户端将控制数组中的第一个对象。
但是,当这个人离开时,我无法决定该做什么。
server.js
// Setup basic express server
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = require('socket.io')(server);
var port = process.env.PORT || 8082;
server.listen(port, function () {
console.log('Server listening at port %d', port);
});
// Routing
app.use(express.static(__dirname + '/public'));
const speed = 5;
var hero1 = {
x : 0,
y : 0
}
var hero2 = {
x : 0,
y : 0
}
var hero3 = {
x : 0,
y : 0
}
var hero4 = {
x : 0,
y : 0
}
var hero5 = {
x : 0,
y : 0
}
var hero6 = {
x : 0,
y : 0
}
var allHeroes = [hero1, hero2, hero3, hero4, hero5, hero6];
var heroesOn = [];
function sendCoords() {
io.sockets.emit("draw", heroesOn)
}
io.on('connection', function (socket) {
socket.on('disconnect', function(){
console.log(clients)
});
var clients = Object.keys(io.sockets.sockets)
heroesOn.push(allHeroes[clients.length - 1]);
console.log(clients)
io.sockets.connected[clients[clients.length - 1]].emit("userId", clients.length - 1);
socket.on("move", function(data) {
if(heroesOn[data.user].x < 1) {
data.a = false;
} else if(data.a == true) {
heroesOn[data.user].x = heroesOn[data.user].x - speed
}
if(heroesOn[data.user].y < 1) {
data.w = false;
} else if(data.w == true) {
heroesOn[data.user].y = heroesOn[data.user].y - speed
}
if(heroesOn[data.user].y > 474) {
data.s = false;
} else if(data.s == true) {
heroesOn[data.user].y = heroesOn[data.user].y + speed
}
if(heroesOn[data.user].x > 974) {
data.d = false;
} else if(data.d == true) {
heroesOn[data.user].x = heroesOn[data.user].x + speed
}
})
})
setInterval(sendCoords, 1000/60)
client.js
$(function() {
var socket = io();
document.onkeydown = down;
document.onkeyup = up;
var canvas = document.querySelector('#canvas');
var ctx = canvas.getContext('2d');
var character = {
user : 0,
w : false,
a : false,
s : false,
d : false
}
socket.on("userId", function(data) {
console.log("got id")
character.user = data;
})
function down(e) {
socket.emit("move", character);
if(e.keyCode == 87) {
character.w = true;
}
if(e.keyCode == 65) {
character.a = true;
}
if(e.keyCode == 83) {
character.s = true;
}
if(e.keyCode == 68) {
character.d = true;
}
}
function up(e) {
socket.emit("move", character);
if(e.keyCode == 87) {
character.w = false;
}
if(e.keyCode == 65) {
character.a = false;
}
if(e.keyCode == 83) {
character.s = false;
}
if(e.keyCode == 68) {
character.d = false;
}
}
setInterval(function() {
}, 1000/60)
socket.on("draw", function(data) {
canvas.width=canvas.width;
for(var i = 0; i < data.length; i++) {
ctx.rect(data[i].x, data[i].y, 25, 25)
}
ctx.stroke();
})
});
每当控制该英雄的客户离开时,我如何从heroesOn数组中删除英雄。
答案 0 :(得分:0)
我会考虑使用地图(即对象)而不是数组来跟踪你的英雄。例如,当客户端连接时:
var heroesOn = {}; // key: socketid, value: hero
var counter = 0;
io.on('connection', function (socket) {
heroesOn[socket.id] = allHeroes[counter++];
...continue your code...
});
当套接字断开连接时:
socket.on('disconnect', function(socket){
delete heroesOn[socket.id];
});