launcher.js

"use script";

var directory = "/gamebois/roms/";
var gamename = new URLSearchParams(window.location.search).get('game');
var type = new URLSearchParams(window.location.search).get('type');
var game = String(directory) + String(gamename) + "." + String(type);

var Iodine = null;
var Blitter = null;
var Mixer = null;
var MixerInput = null;
var timerID = null;
window.onload = function () {
    if (!games[location.hash.substr(1)]) {
        alert("Invalid game request!");
        return;
    }
    //Initialize Iodine:
    Iodine = new GameBoyAdvanceEmulator();
    //Initialize the graphics:
    registerBlitterHandler();
    //Initialize the audio:
    registerAudioHandler();
    //Register the save handler callbacks:
    registerSaveHandlers();
    //Hook the GUI controls.
    registerGUIEvents();
    //Enable Sound:
    Iodine.enableAudio();
    //Download the BIOS:
    downloadBIOS();
}
function downloadBIOS() {
    downloadFile("/IodineGBA/IodineGBA/gba_bios.bin", registerBIOS);
}
function registerBIOS() {
    processDownload(this, attachBIOS);
    downloadROM(game);
}
function downloadROM(gamename) {
    Iodine.pause();
    showTempString("Downloading \"" + games[gamename] + ".\"");
    downloadFile("Binaries/" + gamename + ".gba", registerROM);
}
function registerROM() {
    clearTempString();
    processDownload(this, attachROM);
    if (navigator.userAgent.match(/iPhone/i) || navigator.userAgent.match(/iPod/i) || navigator.userAgent.match(/iPad/i)) {
        Iodine.disableAudio();
    }
    Iodine.play();
}
function registerBlitterHandler() {
    Blitter = new GlueCodeGfx();
    Blitter.attachCanvas(document.getElementById("emulator_target"));
    Blitter.setSmoothScaling(false);
    Iodine.attachGraphicsFrameHandler(function (buffer) {Blitter.copyBuffer(buffer);});
}
function registerAudioHandler() {
    Mixer = new GlueCodeMixer();
    MixerInput = new GlueCodeMixerInput(Mixer);
    Iodine.attachAudioHandler(MixerInput);
}
function registerGUIEvents() {
    addEvent("keydown", document, keyDown);
    addEvent("keyup", document, keyUpPreprocess);
    addEvent("unload", window, ExportSave);
    Iodine.attachSpeedHandler(function (speed) {
        document.title = games[location.hash.substr(1)] + " - " + speed;
    });
}
function lowerVolume() {
    Iodine.incrementVolume(-0.04);
}
function raiseVolume() {
    Iodine.incrementVolume(0.04);
}
function writeRedTemporaryText(textString) {
    if (timerID) {
        clearTimeout(timerID);
    }
    showTempString(textString);
    timerID = setTimeout(clearTempString, 5000);
}
function showTempString(textString) {
    document.getElementById("tempMessage").style.display = "block";
    document.getElementById("tempMessage").textContent = textString;
}
function clearTempString() {
    document.getElementById("tempMessage").style.display = "none";
}
//Some wrappers and extensions for non-DOM3 browsers:
function addEvent(sEvent, oElement, fListener) {
    try {    
        oElement.addEventListener(sEvent, fListener, false);
    }
    catch (error) {
        oElement.attachEvent("on" + sEvent, fListener);    //Pity for IE.
    }
}
function removeEvent(sEvent, oElement, fListener) {
    try {    
        oElement.removeEventListener(sEvent, fListener, false);
    }
    catch (error) {
        oElement.detachEvent("on" + sEvent, fListener);    //Pity for IE.
    }
}