| script | 要调用的函数的 Javascript 函数。 |
在包含的网页中执行脚本函数。
HTML Javascript 主机页面可以执行函数。 ExternalEval 函数指定应执行的函数。
The example shows how HTML scripts can be called from the game code. Two functions
are created in the HTML page, jsFunc1 and jsFunc2. These functions can be called
by clicking the buttons in the game code. The first button calls jsFunc1 which changes the h1
header. The second button causes the HTML jsFunc2 function to call back into
the WebGL script which changes a text string.
// Buttons that create calls into the HTML. using UnityEngine;
public class ExampleClass : MonoBehaviour { string webMessage = "Unity";
void Start() { Camera cam = GetComponent<Camera>(); cam.clearFlags = CameraClearFlags.SolidColor; }
void OnGUI() { if (GUI.Button(new Rect(20, 20, 150, 30), "Change HTML header")) { Application.ExternalEval("jsFunc1()"); }
if (GUI.Button(new Rect(20, 60, 150, 30), "Change WebGL string")) { Application.ExternalEval("jsFunc2()"); }
GUI.Label(new Rect(20, 100, 200, 30), webMessage); }
void ExampleFunction(string s) { webMessage = webMessage + s; } }
The following example is the HTML Javascript code that is called into by the
WebGL Unity script above. The jsFunc1 and jsFunc2 script functions are called
by the Unity script as described above. The jsFunc1 changes the HTML h1 header. The jsFunc2 responses
back to the calling WebGL ExampleFunction which changes the message.
// Note this is presented as a Unity script comment, but is an HTML page
/*<!DOCTYPE html>
<html lang="en-us">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Unity WebGL Player Example</title>
<link rel="shortcut icon" href="TemplateData/favicon.ico">
<link rel="stylesheet" href="TemplateData/style.css">
<script src="TemplateData/UnityProgress.js"></script>
<script src="Build/UnityLoader.js"></script>
<script>
var gameInstance = UnityLoader.instantiate("gameContainer", "Build/test.json", {onProgress: UnityProgress});
</script>
</head>
<body>
<h1 id="unityExample">Unity</h1>
<div class="webgl-content">
<div id="gameContainer" style="width: 600px; height: 400px"></div>
</div>
<script>
function jsFunc1( )
{
document.getElementById('unityExample').innerHTML = 'Unity Example';
}
function jsFunc2( )
{
gameInstance.sendMessage('MainCamera', 'ExampleFunction', ' Example');
}
</script>
</body>
</html>
*/
注意：5.4.0 及更高版本不支持 Web 播放器。\ \ 另请参阅：Application.ExternalCall。