samuel310 / flutter_unity_widget_web Goto Github PK

      let globalUnityInstance;

      window["receiveMessageFromUnity"] = function (params) {
        window.parent.postMessage(params, "*");
      };

      window.parent.addEventListener("flutter2js", function (params) {
        const obj = JSON.parse(params.data);
        globalUnityInstance.SendMessage(obj.gameObject, obj.method, obj.data);
      });

      var container = document.querySelector("#unity-container");
      var canvas = document.querySelector("#unity-canvas");
      var loadingBar = document.querySelector("#unity-loading-bar");
      var progressBarFull = document.querySelector("#unity-progress-bar-full");
      var fullscreenButton = document.querySelector("#unity-fullscreen-button");
      var mobileWarning = document.querySelector("#unity-mobile-warning");

      // By default Unity keeps WebGL canvas render target size matched with
      // the DOM size of the canvas element (scaled by window.devicePixelRatio)
      // Set this to false if you want to decouple this synchronization from
      // happening inside the engine, and you would instead like to size up
      // the canvas DOM size and WebGL render target sizes yourself.
      // config.matchWebGLToCanvasSize = false;

      if (/iPhone|iPad|iPod|Android/i.test(navigator.userAgent)) {
        container.className = "unity-mobile";
        // Avoid draining fillrate performance on mobile devices,
        // and default/override low DPI mode on mobile browsers.
        config.devicePixelRatio = 1;
        mobileWarning.style.display = "block";
        setTimeout(() => {
          mobileWarning.style.display = "none";
        }, 5000);
      } else {
        canvas.style.width = "960px";
        canvas.style.height = "600px";
      }
      loadingBar.style.display = "block";

      var script = document.createElement("script");
      script.src = loaderUrl;
      script.onload = () => {
        createUnityInstance(canvas, config, (progress) => {
          progressBarFull.style.width = 100 * progress + "%";
        })
          .then((unityInstance) => {
            window.parent.postMessage("unity_loaded", "*");
            globalUnityInstance = unityInstance;
            loadingBar.style.display = "none";
            fullscreenButton.onclick = () => {
              unityInstance.SetFullscreen(1);
            };
          })
          .catch((message) => {
            alert(message);
          });
      };