Initial commit
This commit is contained in:
97
engine.js
Normal file
97
engine.js
Normal file
@ -0,0 +1,97 @@
|
||||
var nodes = new Set();
|
||||
var characters = new Set();
|
||||
|
||||
|
||||
class vector {
|
||||
constructor(x, y) {
|
||||
this.x = x;
|
||||
this.y = y;
|
||||
}
|
||||
distance_to(other_vector) {
|
||||
var distance = Math.sqrt((Math.pow(other_vector.x-this.x,2))+(Math.pow(other_vector.y-this.y,2)));
|
||||
return distance;
|
||||
}
|
||||
rotation_to(other_vector) {
|
||||
var rotation = Math.atan2((other_vector.y-this.y), (other_vector.x-this.x)) + (Math.PI * 0.5);
|
||||
return rotation;
|
||||
}
|
||||
add(other_vector) {
|
||||
this.x += other_vector.x;
|
||||
this.y += other_vector.y;
|
||||
}
|
||||
}
|
||||
|
||||
class node {
|
||||
constructor(position, rotation, radius, size, image) {
|
||||
this.position = position;
|
||||
this.rotation = rotation;
|
||||
this.radius = radius;
|
||||
this.size = size;
|
||||
this.image = image;
|
||||
|
||||
nodes.add(this);
|
||||
}
|
||||
translate(translate_vector) {
|
||||
this.position.add(translate_vector);
|
||||
}
|
||||
destroy() {
|
||||
nodes.delete(this);
|
||||
}
|
||||
}
|
||||
|
||||
class character {
|
||||
constructor(position, rotation, variant, username, socket) {
|
||||
this.position = position;
|
||||
this.rotation = rotation;
|
||||
this.radius = 40;
|
||||
this.scale = 1;
|
||||
this.variant = variant;
|
||||
this.username = username;
|
||||
this.socket = socket;
|
||||
this.max_health = 100;
|
||||
this.health = 100;
|
||||
this.max_stamina = 100;
|
||||
this.stamina = 100;
|
||||
|
||||
characters.add(this);
|
||||
}
|
||||
translate(translate_vector) {
|
||||
this.position.add(translate_vector);
|
||||
}
|
||||
scale(scale) {
|
||||
this.scale *= scale;
|
||||
}
|
||||
destroy() {
|
||||
characters.delete(this);
|
||||
}
|
||||
}
|
||||
|
||||
function collide(object_1, object_2) { //object_2 gets moved
|
||||
let min_distance = object_1.radius + object_2.radius;
|
||||
if (object_1.position.distance_to(object_2.position) < min_distance) {
|
||||
let move = object_1.position.distance_to(object_2.position) - min_distance;
|
||||
if (object_1.position.x < object_2.position.x) {
|
||||
object_2.position.x -= move;
|
||||
}
|
||||
else {
|
||||
object_2.position.x += move;
|
||||
}
|
||||
if (object_1.position.y < object_2.position.y) {
|
||||
object_2.position.y -= move;
|
||||
}
|
||||
else {
|
||||
object_2.position.y += move;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function create_id() {
|
||||
let ID = "";
|
||||
let characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
|
||||
for (var i = 0; i < 12; i++) {
|
||||
ID += characters.charAt(Math.floor(Math.random() * 36));
|
||||
}
|
||||
return ID;
|
||||
}
|
||||
|
||||
module.exports = { create_id, collide, character, node, vector };
|
||||
158
server.js
Normal file
158
server.js
Normal file
@ -0,0 +1,158 @@
|
||||
const WebSocket = require("ws");
|
||||
const Engine = require("./engine");
|
||||
const { StringDecoder } = require("string_decoder");
|
||||
|
||||
const decoder = new StringDecoder('utf8');
|
||||
var game_data = {
|
||||
"character": {
|
||||
"variants": [
|
||||
"green"
|
||||
],
|
||||
"radius": 40
|
||||
},
|
||||
"world": {
|
||||
"biome": {
|
||||
"forest": {
|
||||
"ground": {},
|
||||
"tree": {
|
||||
"radius": 50,
|
||||
"size": 180
|
||||
},
|
||||
"boulder": {
|
||||
"radius": 60,
|
||||
"size": 130
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
var nodes = new Set();
|
||||
nodes.add(new Engine.node(new Engine.vector(10, 10), 0, game_data.world.biome.forest.tree.radius, game_data.world.biome.forest.tree.size, "tree"));
|
||||
var characters = new Set();
|
||||
var server_fps = 20;
|
||||
var player_render_distance = 1000;
|
||||
var port = 8080;
|
||||
var max_player_speed = 500;
|
||||
|
||||
function message(type, data, from) {
|
||||
if (type === "init") {
|
||||
let this_username = Engine.create_id();
|
||||
let this_variant = 0;
|
||||
if ("username" in data) {
|
||||
this_username = data.username;
|
||||
console.log(data.username);
|
||||
}
|
||||
if ("variant" in data) {
|
||||
if (data.variant >= 0 < 1) {
|
||||
this_variant = Math.round(data.variant);
|
||||
}
|
||||
}
|
||||
from.username = this_username;
|
||||
from.variant = this_variant;
|
||||
}
|
||||
else if (type === "movement") {
|
||||
if ("position" in data) {
|
||||
try {
|
||||
let new_position = new Engine.vector(data.position.x, data.position.y);
|
||||
//console.log(new_position);
|
||||
if (from.position.distance_to(new_position) <= max_player_speed / server_fps) {
|
||||
from.position.x = new_position.x;
|
||||
from.position.y = new_position.y;
|
||||
}
|
||||
else {
|
||||
console.log(from.username + " moved too fast!");
|
||||
console.log(from.position.distance_to(new_position));
|
||||
var to_send = {
|
||||
"type": "position_update",
|
||||
"data": {
|
||||
"position": {
|
||||
"x": from.position.x,
|
||||
"y": from.position.y
|
||||
}
|
||||
}
|
||||
}
|
||||
from.socket.send(JSON.stringify(to_send));
|
||||
}
|
||||
}
|
||||
catch(err) {
|
||||
console.log(from.username + ": Bad position packet!");
|
||||
console.log(err);
|
||||
}
|
||||
}
|
||||
if ("rotation" in data) {
|
||||
from.rotation = data.rotation;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
else {
|
||||
console.log(from.username + ": Bad packet!");
|
||||
console.log(type);
|
||||
console.dir(data);
|
||||
}
|
||||
}
|
||||
|
||||
var server = new WebSocket.Server({
|
||||
port: port
|
||||
});
|
||||
console.log("Server has started on port " + port);
|
||||
|
||||
server.on("connection", function (socket, request) {
|
||||
let this_player = new Engine.character(new Engine.vector(0, 0), 0, 0, Engine.create_id(), socket);
|
||||
this_player.id = Engine.create_id();
|
||||
characters.add(this_player);
|
||||
|
||||
//socket.send(JSON.stringify({"type": "server_data", "data": {"fps": server_fps}}));
|
||||
socket.send(JSON.stringify({"type": "world", "data": Array.from(nodes)}));
|
||||
console.log("a client has connected");
|
||||
|
||||
|
||||
socket.on("message", function(msg) {
|
||||
let boffer = Buffer.from(msg);
|
||||
let data = JSON.parse(decoder.write(boffer));
|
||||
message(data.type, data.data, this_player);
|
||||
});
|
||||
|
||||
socket.on("close", function() {
|
||||
//characters = characters.filter(p => p.player.id !== thing.id);
|
||||
let char_array = Array.from(characters);
|
||||
for (let itr in char_array) {
|
||||
let this_character = char_array[itr];
|
||||
if (this_character.id === this_player.id) {
|
||||
socket.close();
|
||||
//this_player.destroy(); //doesn't work
|
||||
characters.delete(this_character);
|
||||
}
|
||||
}
|
||||
console.log(this_player.username + " has disconnected");
|
||||
});
|
||||
});
|
||||
|
||||
function server_tick() {
|
||||
var char_array = Array.from(characters);
|
||||
//send other players
|
||||
for (let this_player_num in char_array) {
|
||||
let this_player = char_array[this_player_num];
|
||||
let other_players = new Array();
|
||||
//console.log("got here");
|
||||
for (let testing_player_num in char_array) {
|
||||
let testing_player = char_array[testing_player_num];
|
||||
if (this_player.id != testing_player.id) {
|
||||
if (this_player.position.distance_to(testing_player.position) <= player_render_distance) {
|
||||
other_players.push({
|
||||
"username": testing_player.username,
|
||||
"position": testing_player.position,
|
||||
"rotation": testing_player.rotation,
|
||||
"health": testing_player.health,
|
||||
"variant": testing_player.variant,
|
||||
"id": testing_player.id
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
//console.log(other_players);
|
||||
this_player.socket.send(JSON.stringify({"type": "other_players", "data": other_players}));
|
||||
}
|
||||
}
|
||||
|
||||
setInterval(server_tick, 1000 / server_fps);
|
||||
Reference in New Issue
Block a user