paint_client.js

/*
 * This used to be the script to send images to the paint_server.js.
 * TODO validate file and rewrite if this file is needed
 */

const WebSocket = require('ws');
const getPixels = require('get-pixels');
const src = `Images/Pokemon.png`;

sendData();

const ws = new WebSocket('ws://localhost:3000');

ws.on('message', (data) => {
    console.log(data.toString());
    ws.se.end();
});

function matrix_mapping(x, y) {
    let matrix_array = [
        [0, 47, 48, 95, 96, 143, 144, 191, 192, 239, 240, 287, 288, 335, 336, 383],
        [1, 46, 49, 94, 97, 142, 145, 190, 193, 238, 241, 286, 289, 334, 337, 382],
        [2, 45, 50, 93, 98, 141, 146, 189, 194, 237, 242, 285, 290, 333, 338, 381],
        [3, 44, 51, 92, 99, 140, 147, 188, 195, 236, 243, 284, 291, 332, 339, 380],
        [4, 43, 52, 91, 100, 139, 148, 187, 196, 235, 244, 283, 292, 331, 340, 379],
        [5, 42, 53, 90, 101, 138, 149, 186, 197, 234, 245, 282, 293, 330, 341, 378],
        [6, 41, 54, 89, 102, 137, 150, 185, 198, 233, 246, 281, 294, 329, 342, 377],
        [7, 40, 55, 88, 103, 136, 151, 184, 199, 232, 247, 280, 295, 328, 343, 376],
        [8, 39, 56, 87, 104, 135, 152, 183, 200, 231, 248, 279, 296, 327, 344, 375],
        [9, 38, 57, 86, 105, 134, 153, 182, 201, 230, 249, 278, 297, 326, 345, 374],
        [10, 37, 58, 85, 106, 133, 154, 181, 202, 229, 250, 277, 298, 325, 346, 373],
        [11, 36, 59, 84, 107, 132, 155, 180, 203, 228, 251, 276, 299, 324, 347, 372],
        [12, 35, 60, 83, 108, 131, 156, 179, 204, 227, 252, 275, 300, 323, 348, 371],
        [13, 34, 61, 82, 109, 130, 157, 178, 205, 226, 253, 274, 301, 322, 349, 370],
        [14, 33, 62, 81, 110, 129, 158, 177, 206, 225, 254, 273, 302, 321, 350, 369],
        [15, 32, 63, 80, 111, 128, 159, 176, 207, 224, 255, 272, 303, 320, 351, 368],
        [16, 31, 64, 79, 112, 127, 160, 175, 208, 223, 256, 271, 304, 319, 352, 367],
        [17, 30, 65, 78, 113, 126, 161, 174, 209, 222, 257, 270, 305, 318, 353, 366],
        [18, 29, 66, 77, 114, 125, 162, 173, 210, 221, 258, 269, 306, 317, 354, 365],
        [19, 28, 67, 76, 115, 124, 163, 172, 211, 220, 259, 268, 307, 316, 355, 364],
        [20, 27, 68, 75, 116, 123, 164, 171, 212, 219, 260, 267, 308, 315, 356, 363],
        [21, 26, 69, 74, 117, 122, 165, 170, 213, 218, 261, 266, 309, 314, 357, 362],
        [22, 25, 70, 73, 118, 121, 166, 169, 214, 217, 262, 265, 310, 313, 358, 361],
        [23, 24, 71, 72, 119, 120, 167, 168, 215, 216, 263, 264, 311, 312, 359, 360],
    ];
    return matrix_array[x][y];

}

function sendData() {
    var buf = [];
    var tmp = [];
    var k = 0;

    getPixels(src, function (err, pixels) {
        if (err) {
            console.log("Bad image path");
            return;
        }

        for (let y = 0; y < pixels.shape[0]; y++) {
            for (let x = 0; x < pixels.shape[1]; x++) {
                let lnr = matrix_mapping(x, y);
                if (pixels.get(y, x, 3) === 255)
                    tmp[lnr] = [pixels.get(y, x, 0), pixels.get(y, x, 1), pixels.get(y, x, 2)];
                else
                    tmp[lnr] = [255, 255, 255];
            }
        }

        tmp.forEach(function (werte) {
            buf[k] = werte[0];
            buf[k + 1] = werte[1];
            buf[k + 2] = werte[2];
            k = k + 3;
        });

        client.write(JSON.stringify(buf));

    });
}