loderunner-in-a-box/index.html at master · mad4j/loderunner-in-a-box · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Lode Runner</title>

    <style>
        html,
        body {
            height: 100%;
        }

        #dos {
            width: 100%;
            height: 100%;
        }
    </style>

    <!-- js-dos style sheet -->
    <link rel="stylesheet" href="./js-dos.css">

    <!-- js-dos -->
    <script src="./js-dos.js"></script>

    <!-- Hammer.js for gesture handling -->
    <script src="./hammer.min.js"></script>

</head>

<body>

    <div id="dos" style="width: 100%; height: 100%"></div>

    <script type="text/javascript">

        // Get the container element
        var el = document.getElementById("dos");

        // Initialize Hammer.js on the container
        var hm = new Hammer.Manager(el);

        // Initialize js-dos instance
        const dosInstance = Dos(el, {
            url: "./lr.jsdos",
            pathPrefix: "./emulators/",
            theme: "dark",
            kiosk: false,
            autoStart: true,
            noCursor: true,
            noCloud: true,
            noNetworking: true,
            onEvent: (event, arg) => {
                console.log("Event", event, arg);
                if (event === "ci-ready") {
                    window.ci = arg;
                }
            },
        });

        // Key codes for gesture mapping
        const KEY_ENT = 257;
        const KEY_F1 = 290;
        const KEY_F2 = 291;
        const KEY_P2 = 322;
        const KEY_P4 = 324;
        const KEY_P5 = 325;
        const KEY_P6 = 326;
        const KEY_P8 = 328;

        // Prevent default touch actions like scrolling and refreshing
        el.addEventListener('touchmove', function (e) {
            e.preventDefault();
        }, { passive: false });

        hm.add(new Hammer.Tap({ event: "singletap", taps: 1 }));

        hm.on("singletap", function (e) {
            var rect = el.getBoundingClientRect();
            var centerX = rect.left + rect.width / 2.0;
            var centerY = rect.top + rect.height / 2.0;
            var x = e.center.x - centerX;
            var y = e.center.y - centerY;
            var r = Math.min(rect.width, rect.height) / 2.0;

            var k = KEY_ENT;
            if (x * x + y * y < r * r) {
                k = KEY_ENT;
            } else if (x < 0) {
                k = KEY_F1;
            } else {
                k = KEY_F2;
            }
            window.ci.sendKeyEvent(k, true);
            window.ci.sendKeyEvent(k, false);
        });


        hm.add(new Hammer.Pan({ event: "pan" }));
        hm.get("pan").set({ direction: Hammer.DIRECTION_ALL });

        var lastPan = "none";

        hm.on("panstart panend pancancel", function (e) {
            lastPan = "none";
        });

        hm.on("panleft panright panup pandown", function (e) {

            if (e.type == lastPan) {
                return;
            }

            lastPan = e.type;

            var k = KEY_P5;
            switch (e.type) {
                case "panleft":
                    k = KEY_P4;
                    break;
                case "panright":
                    k = KEY_P6;
                    break;
                case "panup":
                    k = KEY_P8;
                    break;
                case "pandown":
                    k = KEY_P2;
                    break;
                default:
                    k = KEY_P5;
                    break;
            }

            window.ci.sendKeyEvent(k, true);
            window.ci.sendKeyEvent(k, false);
        });

    </script>
</body>

</html>