删除连线操作

extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension/source/panels/behavior-tree/composables/useBehaviorTreeEditor.ts

@@ -303,6 +303,27 @@ export function useBehaviorTreeEditor() {
         alert(message);
     };
 
+    // 清除所有连接线
+    const clearAllConnections = () => {
+        if (appState.connections.value.length === 0) {
+            alert('当前没有连接线需要清除！');
+            return;
+        }
+        
+        if (confirm(`确定要清除所有 ${appState.connections.value.length} 条连接线吗？此操作不可撤销。`)) {
+            // 清除所有节点的父子关系
+            appState.treeNodes.value.forEach(node => {
+                node.parent = undefined;
+                node.children = [];
+            });
+            
+            // 清空连接数组
+            appState.connections.value = [];
+            
+            alert('已清除所有连接线！');
+        }
+    };
+
     onMounted(() => {
         const appContainer = document.querySelector('#behavior-tree-app');
         if (appContainer) {
@@ -321,15 +342,28 @@ export function useBehaviorTreeEditor() {
             alert('文件加载失败: ' + event.detail.error);
         };
         
+        // 键盘快捷键处理
+        const handleKeydown = (event: KeyboardEvent) => {
+            // Delete键删除选中的节点
+            if (event.key === 'Delete' && appState.selectedNodeId.value) {
+                event.preventDefault();
+                nodeOps.deleteNode(appState.selectedNodeId.value);
+            }
+            // Escape键取消连接
+            if (event.key === 'Escape' && connectionState.isConnecting) {
+                event.preventDefault();
+                connectionManager.cancelConnection();
+            }
+        };
+        
         document.addEventListener('load-behavior-tree-file', handleLoadBehaviorTreeFile as EventListener);
         document.addEventListener('file-load-error', handleFileLoadError as EventListener);
-        
-        console.log('[BehaviorTreeEditor] 事件系统准备完成（直接方法调用 + DOM事件备用）');
+        document.addEventListener('keydown', handleKeydown);
         
         onUnmounted(() => {
-            console.log('[BehaviorTreeEditor] 清理事件监听器');
             document.removeEventListener('load-behavior-tree-file', handleLoadBehaviorTreeFile as EventListener);
             document.removeEventListener('file-load-error', handleFileLoadError as EventListener);
+            document.removeEventListener('keydown', handleKeydown);
             
             // 清理暴露的方法
             if (appContainer) {
@@ -361,6 +395,7 @@ export function useBehaviorTreeEditor() {
         startNodeDrag,
         dragState,
         autoLayout,
-        validateTree
+        validateTree,
+        clearAllConnections
     };
 } 

extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension/source/panels/behavior-tree/composables/useConnectionManager.ts

@@ -473,11 +473,47 @@ export function useConnectionManager(
         }, 50); // 50ms延迟，确保DOM渲染完成
     };
 
+    // 删除连接线
+    const removeConnection = (connectionId: string) => {
+        const connection = connections.value.find(conn => conn.id === connectionId);
+        if (!connection) return;
+        
+        const parentNode = treeNodes.value.find(n => n.id === connection.sourceId);
+        const childNode = treeNodes.value.find(n => n.id === connection.targetId);
+        
+        if (parentNode && childNode) {
+            // 从父节点的children中移除
+            const index = parentNode.children.indexOf(connection.targetId);
+            if (index > -1) {
+                parentNode.children.splice(index, 1);
+            }
+            
+            // 清除子节点的parent
+            childNode.parent = undefined;
+            
+            // 更新连接线
+            updateConnections();
+        }
+    };
+
+    // 连接线点击事件处理
+    const onConnectionClick = (event: MouseEvent, connectionId: string) => {
+        event.preventDefault();
+        event.stopPropagation();
+        
+        // 询问用户是否要删除连接
+        if (confirm('确定要删除这条连接线吗？')) {
+            removeConnection(connectionId);
+        }
+    };
+
     return {
         getPortPosition,
         startConnection,
         cancelConnection,
         updateConnections,
+        removeConnection,
+        onConnectionClick,
         onPortHover,
         onPortLeave,
         isValidConnectionTarget

extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension/static/style/behavior-tree/index.css

@@ -281,12 +281,15 @@
     transition: none;
     opacity: 0.9;
     will-change: d;
+    pointer-events: stroke;
+    cursor: pointer;
 }
 
 .connection-line:hover {
-    stroke: #9f7aea;
-    stroke-width: 4;
+    stroke: #f56565;
+    stroke-width: 5;
     opacity: 1;
+    filter: drop-shadow(0 0 4px rgba(245, 101, 101, 0.6));
 }
 
 .connection-active {

extensions/cocos/cocos-ecs/extensions/cocos-ecs-extension/static/template/behavior-tree/BehaviorTreeEditor.html

@@ -152,6 +152,7 @@
                 <button @click="centerView">居中</button>
                 <button @click="autoLayout">自动布局</button>
                 <button @click="validateTree">验证</button>
+                <button @click="clearAllConnections" title="清除所有连接线" v-if="connections.length > 0">清除连线</button>
             </div>
         </div>
         
@@ -186,6 +187,8 @@
                         :d="connection.path"
                         class="connection-line"
                         :class="{ 'connection-active': connection.active }"
+                        @click="onConnectionClick($event, connection.id)"
+                        :title="'点击删除连接线 (' + connection.sourceId + ' → ' + connection.targetId + ')'"
                     />
                     <!-- 临时连接线 -->
                     <path