526互联

从UE虚幻引擎到播放器页面的通信

发布时间 2023-11-24 10:09:15作者: makalo

在前面：

https://www.cnblogs.com/makalochen/p/17803468.html#新建游戏模式

我们已经实现了，从前端到UE 的通信，那能不能UE 主动给前端 发送消息呢？

就比如我在播放的像素流中点击了某个 物体 给所有页面发个消息，说你已经点击了某个物体

答案是可以的，参考官网

https://docs.unrealengine.com/4.27/zh-CN/SharingAndReleasing/PixelStreaming/CustomPlayer/

前置工作

启动信令服务器

https://docs.unrealengine.com/4.27/zh-CN/SharingAndReleasing/PixelStreaming/PixelStreamingIntro/

image-20231123142119925

其实就是个node 服务，启动就完事了

image-20231123142153188

前端

声明一下 ，这部分前端是从信令服务器抠出来的，方便前后端分离

image-20231123142914343

主要就是这些东西

myUI.html

<!DOCTYPE html>
<html>

<head>
    <!-- 该文件处理浏览器和虚幻引擎应用间的通信，接受并显示来自服务器的媒体流。在非必要的情况下，请勿修改此JavaScript文件 -->
    <script type="text/javascript" src="../scripts/webRtcPlayer.js"></script>
    <!-- 此文件将设置处理键盘、鼠标和触摸事件的事件监听器 -->
    <script type="text/javascript" src="../scripts/app.js"></script>


    <link rel="shortcut icon" href="../images/favicon.ico" type="image/x-icon">
	<link rel="icon" type="../image/png" sizes="96x96" href="/images/favicon-96x96.png">
	<link rel="icon" type="../image/png" sizes="32x32" href="/images/favicon-32x32.png">
	<link rel="icon" type="../image/png" sizes="16x16" href="/images/favicon-16x16.png">
    <link type="text/css" rel="stylesheet" href="player.css">
    <title>myUI</title>
</head>

<body onload="load()">
    <div>
    </div>
    <div id="playerUI">
		<div id="player"></div>
		<div id="overlay" class="overlay text-light bg-dark">
			<div>
				<div id="qualityStatus" class="greyStatus">&#9679</div>
				<div id="overlayButton">+</div>
			</div>
			<div id="overlaySettings">
				<div id="kickOthers">
					<div class="settings-text">Kick all other players</div>
					<label class="btn-overlay">
						<input type="button" id="kick-other-players-button" class="overlay-button btn-flat" value="Kick">
					</label>
				</div>
				<div id="fillWindow">
					<div class="settings-text">Enlarge Display to Fill Window</div>
					<label class="tgl-switch">
						<input type="checkbox" id="enlarge-display-to-fill-window-tgl" class="tgl tgl-flat" checked>
						<div class="tgl-slider"></div>
					</label>
				</div>
				<div id="qualityControlOwnership">
					<div class="settings-text">Quality control ownership</div>
					<label class="tgl-switch">
						<input type="checkbox" id="quality-control-ownership-tgl" class="tgl tgl-flat">
						<div class="tgl-slider"></div>
					</label>
				</div>
				<br>

                <!-- 编码设置 -->
				<section id="encoderSettings">
					<div class="settings-text">Encoder Settings</div>
					<div id="encoderParamsContainer" class="collapse">
						<div class="form-group">
							<label for="encoder-rate-control" class="settings-text">Rate Control</label>
							<select id="encoder-rate-control">
								<option value="CBR" selected>CBR</option>
								<option value="VBR">VBR</option>
								<option value="ConstQP">ConstQP</option>
							</select>
							<label for="encoder-target-bitrate-text">Target Bitrate (kbps)</label>
							<input type="number" class="form-control" id="encoder-target-bitrate-text" value="0" min="0" max="100000" />
							<label for="encoder-max-bitrate-text">Max Bitrate (kbps)</label>
							<input type="number" class="form-control" id="encoder-max-bitrate-text" value="0" min="0" max="100000" />
							<label for="encoder-min-qp-text">Min QP</label>
							<input type="number" class="form-control" id="encoder-min-qp-text" value="0" min="0" max="999" />
							<label for="encoder-max-qp-text">Max QP</label>
							<input type="number" class="form-control" id="encoder-max-qp-text" value="0" min="0" max="999" />
							<label for="encoder-multipass" class="settings-text">Multipass</label>
							<select id="encoder-multipass">
								<option value="DISABLED" selected>DISABLED</option>
								<option value="QUARTER">QUARTER</option>
								<option value="FULL">FULL</option>
							</select>
							<div class="settings-text">Filler Data</div>
							<label class="tgl-switch">
								<input type="checkbox" id="encoder-filler-data-tgl" class="tgl tgl-flat">
								<div class="tgl-slider"></div>
							</label>
						</div>
						<input id="encoder-params-submit" class="btn btn-primary btn-lg mt-3" type="button" value="Apply">
					</div>
					<br>
				</section>

                <!-- webRTC 设置 -->
				<section id="webRTCSettings">
					<div class="settings-text">WebRTC Settings</div>
					<div id="webrtcParamsContainer" class="collapse">
						<div class="form-group">
							<label for="webrtc-degradation-pref">Degradation Pref</label>
							<select id="webrtc-degradation-pref">
								<option value="BALANCED">BALANCED</option>
								<option value="MAINTAIN_FRAMERATE">MAINTAIN_FRAMERATE</option>
								<option value="MAINTAIN_RESOLUTION">MAINTAIN_RESOLUTION</option>
							</select>
							<label for="webrtc-max-fps-text">Max FPS</label>
							<input type="number" class="form-control" id="webrtc-max-fps-text" value="1" min="1" max="999" />
							<label for="webrtc-min-bitrate-text">Min Bitrate (kbps)</label>
							<input type="number" class="form-control" id="webrtc-min-bitrate-text" value="0" min="0" max="100000" />
							<label for="webrtc-max-bitrate-text">Max Bitrate (kbps)</label>
							<input type="number" class="form-control" id="webrtc-max-bitrate-text" value="0" min="0" max="100000" />
							<label for="webrtc-low-qp-text">Low QP Threshold</label>
							<input type="number" class="form-control" id="webrtc-low-qp-text" value="0" min="0" max="999" />
							<label for="webrtc-high-qp-text">High QP Threshold</label>
							<input type="number" class="form-control" id="webrtc-high-qp-text" value="0" min="0" max="999" />
						</div>
						<input id="webrtc-params-submit" class="btn btn-primary btn-lg mt-3" type="button" value="Apply">
					</div>
				</section>
				<br>

                <!-- 显示FPS -->
				<div id="showFPS">
					<div class="settings-text">Show FPS</div>
					<label class="btn-overlay">
						<input type="button" id="show-fps-button" class="overlay-button btn-flat" value="Toggle">
					</label>
				</div>
				<div id="matchViewportResolution">
					<div class="settings-text">Match Viewport Resolution</div>
					<label class="tgl-switch">
						<input type="checkbox" id="match-viewport-res-tgl" class="tgl tgl-flat">
						<div class="tgl-slider"></div>
					</label>
				</div>

				<div id="statsPanel">
					<div class="settings-text">Show Stats</div>
					<label class="tgl-switch">
						<input type="checkbox" id="show-stats-tgl" class="tgl tgl-flat" checked>
						<div class="tgl-slider"></div>
					</label>
					<div id="statsContainer" class="statsContainer">
						<div id="stats" class="stats"></div>
					</div>
					<br>
				</div>
				
				<div id="latencyTest">
					<div class="settings-text">Latency Stats</div>
					<label class="btn-overlay">
						<input type="button" id="test-latency-button" class="overlay-button btn-flat" value="Test Latency">
					</label>
					<div id="latencyStatsContainer" class="statsContainer">
						<div id=LatencyStats class="stats">No stats yet...</div>
					</div>
				</div>
			</div>
		</div>
	</div>
</body>

</script>
</html>

player.css

/*Copyright Epic Games, Inc. All Rights Reserved.*/

:root {
	/*Using colour scheme https://color.adobe.com/TD-Colors---Option-3-color-theme-10394433/*/
	--colour1:#2B3A42;
	--colour2:#3F5765;
	--colour3:#BDD4DE;
	--colour4:#EFEFEF;
	--colour5:#FF5035;
	
	--buttonFont:Helvetica;
	--inputFont:Helvetica;
}

body{
    margin: 0px;
    background-color: black;
}	

#playerUI {
	width: 100%;
	position: absolute;
	/*top: 0;
	left: 0;*/
	z-index: 10;
}

.statsContainer {
	background-color: rgba(0,0,0,0.8);
	text-align: left;
	display: block;
	margin-top: 5px;
}

.stats {
	font-size: 14px;
	font-weight: bold;
	padding: 6px;
	color: lime;
}

canvas{
    image-rendering: crisp-edges;
    position: absolute;
}

video{
	position: absolute;
	width: 100%;
	height: 100%;
}

#player{
	width: 1280px;
	height: 720px;
	position: relative;
	background-color: #000;
}

#overlay{
	-moz-border-radius-bottomright: 5px;
	-moz-border-radius-bottomleft: 5px;
	-webkit-border-bottom-right-radius: 5px;
	-webkit-border-bottom-left-radius: 5px;
	border-bottom-right-radius: 5px; /* future proofing */
	border-bottom-left-radius: 5px; /* future proofing */
	-khtml-border-bottom-right-radius: 5px; /* for old Konqueror browsers */
	-khtml-border-bottom-left-radius: 5px; /* for old Konqueror browsers */
	
	-webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Safari */
     -khtml-user-select: none; /* Konqueror HTML */
       -moz-user-select: none; /* Firefox */
        -ms-user-select: none; /* Internet Explorer/Edge */
            user-select: none; /* Non-prefixed version, currently
                                  supported by Chrome and Opera */
	
	position: absolute;
	padding: 4px;
	top: 0;
	right: 2%;
	z-index: 100;
	border: 2px solid var(--colour4);
	border-top-width: 0px;
}

.overlay {
    background-color: var(--colour2);
	font-family: var(--buttonFont);
	font-weight: lighter;
	color: var(--colour4);
}

.overlay-shown > #overlaySettings {
	padding: 50px 4px 4px 4px;
	display: block;
}

.overlay-shown > div > #overlayButton {
	transform: rotate(-135deg);
	-webkit-transform: rotate(-135deg); /* Safari */
	-moz-transform: rotate(-135deg); /* Firefox */
	-ms-transform: rotate(-135deg); /* IE */
	-o-transform: rotate(-135deg); /* Opera */
}

#overlayButton:hover{
	cursor: pointer;
}

#overlayButton{
	transition-duration: 250ms;
	float: right;
	text-align: right;
	font-size: 40px;
}

#qualityStatus{
	float: left;
	font-size: 37px;
	padding-right: 4px;
}

#overlaySettings{
	width: 400px;
	display: none;
}

.greyStatus {
	color: grey;
}

.limeStatus {
	color: lime;
}

.orangeStatus {
	color: orange;
}

.redStatus {
	color: red;
}

#videoMessageOverlay{
	z-index: 20;
	color: var(--colour4);;
	font-size: 1.8em;
	position: absolute;
	margin: auto;
	font-family: var(--inputFont);;
	width: 100%;
}

#videoPlayOverlay{
	z-index: 30;
	position: absolute;
	color: var(--colour4);
	font-size: 1.8em;
	font-family: var(--inputFont);
	width: 100%;
	height: 100%;
	background-color: rgba(100, 100, 100, 0.7);
}

/* State for element to be clickable */
.clickableState{
	align-items: center;
	justify-content: center;
	display: flex;
	cursor: pointer;
}

/* State for element to show text, this is for informational use*/
.textDisplayState{
	display: flex;
}

/* State to hide overlay, WebRTC communication is in progress and or is playing */
.hiddenState{
	display: none;
}

#playButton{
	display: inline-block;
	height: auto;
}

img#playButton{
	max-width: 241px;
	width: 10%;
}

#UIInteraction{
	position: fixed;
}

#UIInteractionButtonBoundary{
	padding: 2px;
}

#UIInteractionButton{
	cursor: pointer;
}

#hiddenInput{
	position: absolute;
	left: -10%;   /* Although invisible, push off-screen to prevent user interaction. */
	width: 0px;
	opacity: 0;
}

#editTextButton{
	position: absolute;
	height: 40px;
	width: 40px;
}

.settings-text{
	color: var(--colour4);
	vertical-align: middle;
	font-size: 18px;
	font-weight: normal;
	display: inline-block;
}

.overlay-button{
	line-height: 1.1;
	padding: 1px 6px;
}

.btn-overlay{
	float: right;
	vertical-align: middle;
	display: inline-block;
}

.btn-flat{
	background: var(--colour4);
	border: 2px solid var(--colour5);
	font-weight: bold;
	cursor: pointer;
	font-family: var(--buttonFont);
	font-size: 10px;
	color: var(--colour5);
	border-radius: 5px;
	height: 20px;
}

.btn-flat:disabled{
	background: var(--colour4);
	border-color: var(--colour3);
	color: var(--colour3);
	cursor: default;
}

.btn-flat:active{
	border-color: var(--colour2);
	color: var(--colour2);
}

.btn-flat:focus{
	outline: none;
}
/*** Toggle Switch styles ***/
.tgl-switch {
  float: right;
  vertical-align: middle;
  display: inline-block;
}

.tgl-switch .tgl {
	display:none;
}

.tgl, .tgl:after, .tgl:before, .tgl *, .tgl *:after, .tgl *:before, .tgl + .tgl-slider {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}
.tgl::-moz-selection, .tgl:after::-moz-selection, .tgl:before::-moz-selection, .tgl *::-moz-selection, .tgl *:after::-moz-selection, .tgl *:before::-moz-selection, .tgl + .tgl-slider::-moz-selection {
  background: none;
}
.tgl::selection, .tgl:after::selection, .tgl:before::selection, .tgl *::selection, .tgl *:after::selection, .tgl *:before::selection, .tgl + .tgl-slider::selection {
  background: none;
}

.tgl-slider {
	float:right;
}

.tgl + .tgl-slider {
  outline: 0;
  display: block;
  width: 40px;
  height: 18px;
  position: relative;
  cursor: pointer;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

.tgl + .tgl-slider:after, .tgl + .tgl-slider:before {
  position: relative;
  display: block;
  content: "";
  width: 50%;
  height: 100%;
}
.tgl + .tgl-slider:after {
  left: 0;
}
.tgl + .tgl-slider:before {
  display: none;
}

.tgl-flat + .tgl-slider {
  padding: 2px;
  -webkit-transition: all .2s ease;
  transition: all .2s ease;
  background: #fff;
  border: 3px solid var(--colour4);
  border-radius: 2em;
}

.tgl-flat + .tgl-slider:after {
  -webkit-transition: all .2s ease;
  transition: all .2s ease;
  background: var(--colour4);
  content: "";
  border-radius: 1em;
}

.tgl-flat:checked + .tgl-slider {
  border: 3px solid var(--colour5);
}

.tgl-flat:checked + .tgl-slider:after {
  left: 50%;
  background: var(--colour5);
}
/*** Toggle Switch styles ***/

#encoderSettings, #webRTCSettings {
	margin: 10px 0px;
}

#encoderParamsContainer, #webrtcParamsContainer {
	padding-left: 5%;
}

#encoder-params-submit {
	float: right;
}

#webrtc-params-submit {
	float: right;
}

select {
	text-align: right;
}

input {
	text-align: right;
}

.form-group {
	display: grid;
	grid-template-columns: 50% 50%;
}

.form-group label {
	color: var(--colour4);
	vertical-align: middle;
	font-size: 18px;
	font-weight: normal;
}

#latencyTest {
	display: block;
}

#latencyTest button {
	margin: 30px 0px;
}

#freezeFrameOverlay {
	background-color: transparent;
}

.freezeframeBackground {
	background-color: #000 !important;
}

除了这两个文件 ，还有一个文件

app.js 修改像素流流送地址

修改成对应的地址即可

image-20231123143252151

ue 创建基础项目 并 显示鼠标

随便创建个第三人称游戏项目，名称就叫 myUEToHtml

image-20231123143639770

创建完成

image-20231123143957887

但是这个鼠标运行之后，鼠标没有显示出来，可以参考这个现实鼠标

https://www.cnblogs.com/makalochen/p/17700166.html

到现在 前置工作已完成

ue 给静态网格体添加鼠标点击事件

现在在ue 中，随便添加个 静态网格体，给它添加一个鼠标点击事件

添加静态网格体

image-20231123153629199

添加点击事件

选中盒体，添加点击事件

image-20231123145550044

然后再关卡蓝图中就可以看到事件

image-20231123153726200

随便打印一句话，运行看看

image-20231123153920131

没反应，将鼠标悬浮在这个事件上面，提示

启用点击事件

在玩家控制器中启用了点击事件后，鼠标悬停此actor并点击左键将进行调用

image-20231123151036243

那我们在玩家控制器中启用点击事件

image-20231123151238440

运行一下看看

image-20231123154000196

模型OnClick事件不生效的两种原因

参考：

https://blog.csdn.net/qqQQqsadfj/article/details/126083284

1.玩家控制器中点击事件没启用

2.模型的碰撞没设置好

ue 向 html 发送消息

参考

https://docs.unrealengine.com/4.27/zh-CN/SharingAndReleasing/PixelStreaming/CustomPlayer/

发送之后回调函数不调的，可能的原因

image-20231124095629779

如上图，是从玩家控制器里去拿PixelStreamerInput 组件，那必须在玩家控制器中，添加组件

image-20231124095750039

myUI.html

<!DOCTYPE html>
<html>

<head>
	<!-- 该文件处理浏览器和虚幻引擎应用间的通信，接受并显示来自服务器的媒体流。在非必要的情况下，请勿修改此JavaScript文件 -->
	<script type="text/javascript" src="../scripts/webRtcPlayer.js"></script>
	<!-- 此文件将设置处理键盘、鼠标和触摸事件的事件监听器 -->
	<script type="text/javascript" src="../scripts/app.js"></script>


	<link rel="shortcut icon" href="../images/favicon.ico" type="image/x-icon">
	<link rel="icon" type="../image/png" sizes="96x96" href="/images/favicon-96x96.png">
	<link rel="icon" type="../image/png" sizes="32x32" href="/images/favicon-32x32.png">
	<link rel="icon" type="../image/png" sizes="16x16" href="/images/favicon-16x16.png">
	<link type="text/css" rel="stylesheet" href="player.css">
	<title>myUI</title>
</head>

<body onload="load()">
	<div>
		<button onclick="test()">测试</button>
		<button onclick="reg()">注册</button>
	</div>
	<div id="playerUI">
		<div id="player"></div>
		<div id="overlay" class="overlay text-light bg-dark">
			<div>
				<div id="qualityStatus" class="greyStatus">&#9679</div>
				<div id="overlayButton">+</div>
			</div>
			<div id="overlaySettings">
				<div id="kickOthers">
					<div class="settings-text">Kick all other players</div>
					<label class="btn-overlay">
						<input type="button" id="kick-other-players-button" class="overlay-button btn-flat"
							value="Kick">
					</label>
				</div>
				<div id="fillWindow">
					<div class="settings-text">Enlarge Display to Fill Window</div>
					<label class="tgl-switch">
						<input type="checkbox" id="enlarge-display-to-fill-window-tgl" class="tgl tgl-flat" checked>
						<div class="tgl-slider"></div>
					</label>
				</div>
				<div id="qualityControlOwnership">
					<div class="settings-text">Quality control ownership</div>
					<label class="tgl-switch">
						<input type="checkbox" id="quality-control-ownership-tgl" class="tgl tgl-flat">
						<div class="tgl-slider"></div>
					</label>
				</div>
				<br>

				<!-- 编码设置 -->
				<section id="encoderSettings">
					<div class="settings-text">Encoder Settings</div>
					<div id="encoderParamsContainer" class="collapse">
						<div class="form-group">
							<label for="encoder-rate-control" class="settings-text">Rate Control</label>
							<select id="encoder-rate-control">
								<option value="CBR" selected>CBR</option>
								<option value="VBR">VBR</option>
								<option value="ConstQP">ConstQP</option>
							</select>
							<label for="encoder-target-bitrate-text">Target Bitrate (kbps)</label>
							<input type="number" class="form-control" id="encoder-target-bitrate-text" value="0" min="0"
								max="100000" />
							<label for="encoder-max-bitrate-text">Max Bitrate (kbps)</label>
							<input type="number" class="form-control" id="encoder-max-bitrate-text" value="0" min="0"
								max="100000" />
							<label for="encoder-min-qp-text">Min QP</label>
							<input type="number" class="form-control" id="encoder-min-qp-text" value="0" min="0"
								max="999" />
							<label for="encoder-max-qp-text">Max QP</label>
							<input type="number" class="form-control" id="encoder-max-qp-text" value="0" min="0"
								max="999" />
							<label for="encoder-multipass" class="settings-text">Multipass</label>
							<select id="encoder-multipass">
								<option value="DISABLED" selected>DISABLED</option>
								<option value="QUARTER">QUARTER</option>
								<option value="FULL">FULL</option>
							</select>
							<div class="settings-text">Filler Data</div>
							<label class="tgl-switch">
								<input type="checkbox" id="encoder-filler-data-tgl" class="tgl tgl-flat">
								<div class="tgl-slider"></div>
							</label>
						</div>
						<input id="encoder-params-submit" class="btn btn-primary btn-lg mt-3" type="button"
							value="Apply">
					</div>
					<br>
				</section>

				<!-- webRTC 设置 -->
				<section id="webRTCSettings">
					<div class="settings-text">WebRTC Settings</div>
					<div id="webrtcParamsContainer" class="collapse">
						<div class="form-group">
							<label for="webrtc-degradation-pref">Degradation Pref</label>
							<select id="webrtc-degradation-pref">
								<option value="BALANCED">BALANCED</option>
								<option value="MAINTAIN_FRAMERATE">MAINTAIN_FRAMERATE</option>
								<option value="MAINTAIN_RESOLUTION">MAINTAIN_RESOLUTION</option>
							</select>
							<label for="webrtc-max-fps-text">Max FPS</label>
							<input type="number" class="form-control" id="webrtc-max-fps-text" value="1" min="1"
								max="999" />
							<label for="webrtc-min-bitrate-text">Min Bitrate (kbps)</label>
							<input type="number" class="form-control" id="webrtc-min-bitrate-text" value="0" min="0"
								max="100000" />
							<label for="webrtc-max-bitrate-text">Max Bitrate (kbps)</label>
							<input type="number" class="form-control" id="webrtc-max-bitrate-text" value="0" min="0"
								max="100000" />
							<label for="webrtc-low-qp-text">Low QP Threshold</label>
							<input type="number" class="form-control" id="webrtc-low-qp-text" value="0" min="0"
								max="999" />
							<label for="webrtc-high-qp-text">High QP Threshold</label>
							<input type="number" class="form-control" id="webrtc-high-qp-text" value="0" min="0"
								max="999" />
						</div>
						<input id="webrtc-params-submit" class="btn btn-primary btn-lg mt-3" type="button"
							value="Apply">
					</div>
				</section>
				<br>

				<!-- 显示FPS -->
				<div id="showFPS">
					<div class="settings-text">Show FPS</div>
					<label class="btn-overlay">
						<input type="button" id="show-fps-button" class="overlay-button btn-flat" value="Toggle">
					</label>
				</div>
				<div id="matchViewportResolution">
					<div class="settings-text">Match Viewport Resolution</div>
					<label class="tgl-switch">
						<input type="checkbox" id="match-viewport-res-tgl" class="tgl tgl-flat">
						<div class="tgl-slider"></div>
					</label>
				</div>

				<div id="statsPanel">
					<div class="settings-text">Show Stats</div>
					<label class="tgl-switch">
						<input type="checkbox" id="show-stats-tgl" class="tgl tgl-flat" checked>
						<div class="tgl-slider"></div>
					</label>
					<div id="statsContainer" class="statsContainer">
						<div id="stats" class="stats"></div>
					</div>
					<br>
				</div>

				<div id="latencyTest">
					<div class="settings-text">Latency Stats</div>
					<label class="btn-overlay">
						<input type="button" id="test-latency-button" class="overlay-button btn-flat"
							value="Test Latency">
					</label>
					<div id="latencyStatsContainer" class="statsContainer">
						<div id=LatencyStats class="stats">No stats yet...</div>
					</div>
				</div>
			</div>
		</div>
	</div>
</body>
<script>
	function test(){
		// 发送
		emitUIInteraction(`测试发送`);
		// 注册监听器函数
		addResponseEventListener("handle_responses", (data) => {
			// ue 返回
			console.log(`myHandleResponseFunction ----------> ${data}`);
		});
	}
	function reg(){
		// 注册监听器函数
		addResponseEventListener("handle_responses", (data) => {
			// ue 返回
			console.log(`myHandleResponseFunction2 ----------> ${data}`);
		});
	}
</script>

</html>

ue 关卡蓝图

image-20231124100119264

上图最主要的 获取玩家控制器 -> 按类获取组件(前提是你在玩家控制器蓝图中，已经将像素流组件添加进去了)

测试运行

image-20231124100424965