board can now be loaded

README.md

@@ -19,5 +19,5 @@ That's it!
 
 1. Server settings are located in `./settings.json`, you need to change serverAddress in order to deploy
 
-2. When catches SIGUSR1, server will save a board with name read from settings file. SIGINT (CTRL + C) does the same but exit server when board is saved
+2. When catches SIGUSR1, server will save a board with name read from settings file. SIGINT (CTRL + C) does the same but exit server when board is saved **KILL WITH SIGTERM WILL NOT SAVE THE BOARD!**
  

index.js

@@ -4,6 +4,7 @@ const http = express();
 const path = require('path');
 const pug = require('pug');
 const Jimp = require('jimp');
+const fs = require('fs');
 
 http.use(express.static(path.join(__dirname, 'html')));
 http.set('view engine', 'pug');
@@ -19,7 +20,30 @@ const boardHeight = config.boardHeight;
 var toQuit = false;
 
 var board = new Array(boardWidth * boardHeight * 4);
-board.fill(255);
+
+if (!fs.existsSync(saveFile)) {
+    console.log("No save file found, creating blank board.");
+    board.fill(255);
+} else {
+    console.log("Save file found, loading")
+    let image = Jimp.read(`./${saveFile}`, (err, image) => {
+        for (let x = 0; x < boardWidth; x ++) {
+            for (let y = 0; y < boardHeight; y ++) {
+                pixelNumber = evaulatePixelNumber(x * 4, y * 4);
+                let pixel = Jimp.intToRGBA(image.getPixelColor(x, y))
+                board[pixelNumber + 0] = pixel.r
+                board[pixelNumber + 1] = pixel.g
+                board[pixelNumber + 2] = pixel.b
+                board[pixelNumber + 3] = 255;
+            }
+        }
+        console.log("Loaded")
+    });
+    
+}
+
+
+
 
 const server = new WebSocket.Server({
   port: appPort
@@ -88,13 +112,6 @@ http.listen(httpPort, "0.0.0.0", () => {
     console.log(`Starting pixelbattle http server on port ${httpPort}`);
 })
 
-const rgbToHex = (r, g, b) => '#' + [r, g, b].map(x => {
-    const hex = x.toString(16)
-    return hex.length === 1 ? '0' + hex : hex
-}).join('')
-
-function d2h(d) { return (+d).toString(16).toUpperCase(); }
-
 const save = (err, image) => {
     if (err) throw err;
         console.log()