Unity（四十八）：Unity与Web双向交互

效果

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游戏对象绑定脚本

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游戏脚本源码

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class Tent : MonoBehaviour
{public Camera camera;// Start is called before the first frame updatevoid Start(){}// Update is called once per frame[System.Obsolete]void Update(){SendUnityMessage();}/// <summary>/// 发送数据到Web端/// </summary>[System.Obsolete]public void SendUnityMessage() {// 当前游戏对象的位置Vector3 worldPoint = transform.position;// 转换为屏幕位置Vector3 screenPoint = camera.WorldToScreenPoint(worldPoint);// w屏宽, h屏高, x位置, y位置Vector4 position = new Vector4(Screen.width, Screen.height, screenPoint.x, Screen.height - screenPoint.y);// 发送到Web端Application.ExternalCall("updatePosition2Web", transform.gameObject.name, position);}/// <summary>/// 接收来自Web的传参/// </summary>/// <param name="message">传参信息</param>public void ReceiveWebMessage(string message) {transform.position = Vector3.zero;Debug.Log(message);}
}

打包为Web应用

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修改打包后的HTML源码

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* {margin: 0;padding: 0;box-sizing: border-box;
}html,
body {position: relative;width: 100%;height: 100%;overflow: hidden;
}#unity-canvas,
#unity-svg {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);width: 100%;height: 100%;
}

<!DOCTYPE html>
<html lang="en-us"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Unity WebGL Player</title><link rel="shortcut icon" href="TemplateData/favicon.ico"><link rel="stylesheet" href="TemplateData/style.css"><link rel="manifest" href="manifest.webmanifest">
</head><body><canvas id="unity-canvas" width=900 height=600 tabindex="-1"></canvas><svg id="unity-svg"><text id="svg-text"></text></svg></div><script src="./js/d3@7.js"></script><script>var canvas = document.querySelector("#unity-canvas");let unity = null;var buildUrl = "Build";var loaderUrl = buildUrl + "/XXXXXX.loader.js";var config = {dataUrl: buildUrl + "/XXXXXX.data.unityweb",frameworkUrl: buildUrl + "/XXXXXX.framework.js.unityweb",codeUrl: buildUrl + "/XXXXXX.wasm.unityweb",streamingAssetsUrl: "StreamingAssets",companyName: "DefaultCompany",productName: "XXXXXX",productVersion: "0.1",};var script = document.createElement("script");script.src = loaderUrl;script.onload = () => {createUnityInstance(canvas, config, (progress) => {console.log('progress', progress);}).then((unityInstance) => {unity = unityInstance;}).catch((message) => {alert(message);});};document.body.appendChild(script);/*** 获取游戏对象相对于屏幕的位置* @param name      游戏对象名称* @param position  位置信息*/function updatePosition2Web(name, position) {const [w, h, x, y] = position.replace(/[()\s]/g, '').split(',');const svg = d3.select('#unity-svg').attr('viewBox', [0, 0, w, h]);d3.select('#svg-text').text(position).attr('x', x).attr('y', y).attr('fill', 'red').attr('font-size', 30).on('click', e => {console.log(name, unity);unity.SendMessage(name, "ReceiveWebMessage", "发送消息到unity!!!")});}</script>
</body></html>