refactor: 移除弹幕项的消失动画逻辑，简化弹幕处理逻辑

src/client/ClientDanmakuItem.vue

@@ -8,12 +8,12 @@ const props = defineProps<BaseDanmakuItemProps>();
 
 // 使用工具函数获取基础计算属性
 const emojiData = useDanmakuWindow().emojiData;
-const { isDisappearing, typeClass } = useDanmakuUtils(props, emojiData);
+const { typeClass } = useDanmakuUtils(props, emojiData);
 </script>
 
 <template>
   <div
-    :class="['danmaku-item-content', typeClass, { 'disappearing': isDisappearing }]"
+    :class="['danmaku-item-content', typeClass]"
     :data-disappear="item.disappearAt"
   >
     <!-- 根据设置选择显示风格 -->
@@ -47,22 +47,4 @@ const { isDisappearing, typeClass } = useDanmakuUtils(props, emojiData);
     font-size: var(--dw-font-size);
     color: var(--dw-text-color);
   }
-
-  .danmaku-item-content.disappearing {
-    animation: danmaku-out var(--dw-animation-duration, 300ms) ease forwards;
-    pointer-events: none;
-  }
-
-  /* 动画相关 */
-  @keyframes danmaku-out {
-    from {
-      opacity: var(--dw-opacity);
-      transform: translateX(0);
-    }
-
-    to {
-      opacity: 0;
-      transform: translateX(-30px);
-    }
-  }
 </style>

src/client/ClientDanmakuWindow.vue

@@ -9,7 +9,6 @@
 
   type TempDanmakuType = EventModel & {
     randomId: string;
-    isNew?: boolean; // 添加：标记是否为新弹幕
     disappearAt?: number; // 消失时间戳
     timestamp?: number; // 添加：记录插入时间戳
   };
@@ -71,24 +70,11 @@
       disappearAt = Date.now() + setting.value.autoDisappearTime * 1000;
     }
 
-    // 判断短时间内是否有大量弹幕插入
-    const isRapidInsertion = danmakuList.value.filter(item =>
-      item.isNew && Date.now() - (item.timestamp || 0) < 500).length > 5;
-
-    if (isRapidInsertion && !isInBatchUpdate.value) {
-      isInBatchUpdate.value = true;
-      // 在大量插入时简化动画，300ms后恢复
-      setTimeout(() => {
-        isInBatchUpdate.value = false;
-      }, 300);
-    }
-
     // 为传入的弹幕对象添加一个随机ID和isNew标记
     const dataWithId = {
       ...data,
       randomId: nanoid(), // 生成一个随机ID
       disappearAt, // 添加消失时间
-      isNew: true, // 标记为新弹幕，用于动画
       timestamp: Date.now(), // 添加时间戳记录插入时间
     };
 
@@ -96,35 +82,8 @@
 
     // 优化超出长度的弹幕处理 - 改为标记并动画方式移除
     if (danmakuList.value.length > maxItems.value) {
-      // 找到要移除的项目
-      const itemsToRemove = danmakuList.value.slice(maxItems.value);
-      itemsToRemove.forEach(item => {
-        if (!pendingRemovalItems.value.includes(item.randomId)) {
-          pendingRemovalItems.value.push(item.randomId);
+      danmakuList.value.splice(maxItems.value, danmakuList.value.length - maxItems.value);
     }
-      });
-
-      // 延迟移除，给动画足够时间
-      setTimeout(() => {
-        danmakuList.value = danmakuList.value.filter(item =>
-          !pendingRemovalItems.value.includes(item.randomId) ||
-          item.timestamp && Date.now() - item.timestamp < setting.value!.animationDuration
-        );
-
-        // 更新待移除列表
-        pendingRemovalItems.value = pendingRemovalItems.value.filter(id =>
-          danmakuList.value.some(item => item.randomId === id)
-        );
-      }, setting.value.animationDuration || 300);
-    }
-
-    // 设置一个定时器，在动画完成后移除isNew标记
-    setTimeout(() => {
-      const index = danmakuList.value.findIndex(item => item.randomId === dataWithId.randomId);
-      if (index !== -1) {
-        danmakuList.value[index].isNew = false;
-      }
-    }, setting.value.animationDuration || 300);
 
     //console.log('[DanmakuWindow] 添加弹幕:', dataWithId);
   }
@@ -139,14 +98,7 @@
     // 先标记将要消失的弹幕
     danmakuList.value.forEach(item => {
       if (item.disappearAt && item.disappearAt <= now && !pendingRemovalItems.value.includes(item.randomId)) {
-        // 标记为待移除，但还不实际移除
-        pendingRemovalItems.value.push(item.randomId);
-
-        // 延迟删除，让动画有时间完成
-        setTimeout(() => {
-          danmakuList.value = danmakuList.value.filter(d => d.randomId !== item.randomId);
-          pendingRemovalItems.value = pendingRemovalItems.value.filter(id => id !== item.randomId);
-        }, animationDuration);
+        danmakuList.value.splice(danmakuList.value.indexOf(item), 1);
       }
     });
   }
@@ -232,27 +184,21 @@
         tag="div"
         class="danmaku-list-container"
       >
-        <div
+        <ClientDanmakuItem
           v-for="item in danmakuList"
           :key="item.randomId"
-          :data-type="item.type"
-          class="danmaku-item"
-          :class="{
-            'danmaku-item-leaving': pendingRemovalItems.includes(item.randomId),
-            'batch-item': isInBatchUpdate
-          }"
-        >
-          <ClientDanmakuItem
           :item="item"
           :setting="setting"
+          :data-type="item.type"
+          class="danmaku-item"
         />
-        </div>
       </TransitionGroup>
     </div>
   </div>
 </template>
 
 <style>
+
   html,
   body {
     background: transparent;
@@ -279,7 +225,8 @@
   .danmaku-window {
     -webkit-app-region: drag;
     overflow: hidden;
-    background-color: transparent; /* 完全透明背景 */
+    background-color: transparent;
+    /* 完全透明背景 */
     width: 100%;
     height: 100%;
     color: var(--dw-text-color);
@@ -300,7 +247,8 @@
     overflow: hidden;
     display: flex;
     flex-direction: var(--dw-direction);
-    box-sizing: border-box; /* 确保padding不会增加元素的实际尺寸 */
+    box-sizing: border-box;
+    /* 确保padding不会增加元素的实际尺寸 */
   }
 
   .danmaku-list-container {
@@ -308,9 +256,8 @@
     display: flex;
     flex-direction: inherit;
     gap: var(--dw-item-spacing);
-    padding-bottom: 8px; /* 添加底部内边距以防止项目溢出 */
-    box-sizing: border-box; /* 确保padding不会增加元素的实际尺寸 */
-    position: relative; /* 为TransitionGroup添加相对定位 */
+    position: relative;
+    padding-bottom: 8px;
   }
 
   .danmaku-list.reverse {
@@ -330,24 +277,6 @@
     border-radius: 4px;
   }
 
-  /* 弹幕项样式 */
-  .danmaku-item {
-    transform-origin: center left;
-    transition: all var(--dw-animation-duration) ease;
-    /* 添加硬件加速，防止文字模糊 */
-    transform: translateZ(0);
-    will-change: transform, opacity;
-    backface-visibility: hidden;
-    -webkit-font-smoothing: subpixel-antialiased;
-  }
-
-  /* 正在离开的弹幕项样式 */
-  .danmaku-item-leaving {
-    animation: danmaku-leave var(--dw-animation-duration) cubic-bezier(0.4, 0, 0.2, 1) forwards;
-    opacity: 0.8; /* 轻微降低不透明度，提高视觉层次感 */
-    z-index: -1; /* 确保离开的项在其他项下方 */
-  }
-
   /* 批量更新模式下的优化 */
   .batch-update .danmaku-list-move {
     transition-duration: 100ms !important;
@@ -358,73 +287,42 @@
     transition-duration: 100ms !important;
   }
 
-  /* TransitionGroup动画效果 */
+  /* 1. declare transition */
+  .danmaku-list-move,
   .danmaku-list-enter-active,
-  .danmaku-list-leave-active,
-  .danmaku-list-move {
-    transition: all var(--dw-animation-duration) cubic-bezier(0.55, 0, 0.1, 1);
-    /* 确保动画过程中文字不模糊 */
-    transform: translateZ(0);
-    will-change: transform, opacity;
-    backface-visibility: hidden;
-  }
-
   .danmaku-list-leave-active {
-    position: absolute;
-    pointer-events: none;
-    z-index: -1;
-    width: 100%;
-  }
-
-  .danmaku-list-enter-from {
-    opacity: 0;
-    transform: scaleY(0.5) translateX(-30px) translateZ(0);
-  }
-
-  .danmaku-list-enter-to {
-    opacity: 1;
-    transform: scaleY(1) translateX(0) translateZ(0);
+    transition: all var(--dw-animation-duration) cubic-bezier(0.55, 0, 0.1, 1);
   }
 
+  .danmaku-list-enter-from,
   .danmaku-list-leave-to {
     opacity: 0;
-    transform: scaleY(0.5) translateX(30px) translateZ(0);
+    transform: scaleY(0.01) translate(3000px, 0);
   }
 
-  /* 处理已有弹幕的移动动画 */
-  .danmaku-list-move {
-    transition: transform var(--dw-animation-duration) cubic-bezier(0.55, 0, 0.1, 1);
-    /* 确保移动动画时文字不模糊 */
-    backface-visibility: hidden;
-    transform: translateZ(0);
+  /* 3. ensure leaving items are taken out of layout flow so that moving
+      animations can be calculated correctly. */
+  .danmaku-list-leave-active {
+    position: absolute;
   }
 
   /* 根据弹幕类型提供不同的动画特性 */
-  [data-type="3"] { /* 普通弹幕 */
+  [data-type="3"] {
+    /* 普通弹幕 */
     --transition-delay: 0.02s;
   }
 
-  [data-type="2"] { /* 礼物 */
+  [data-type="2"] {
+    /* 礼物 */
     --transition-delay: 0.04s;
-    animation-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1); /* 小弹跳效果 */
+    animation-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
+    /* 小弹跳效果 */
   }
 
-  [data-type="1"] { /* SC */
+  [data-type="1"] {
+    /* SC */
     --transition-delay: 0.05s;
-    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1); /* 特殊强调效果 */
-  }
-
-  /* 添加弹幕消失动画 */
-  @keyframes danmaku-leave {
-    0% {
-      opacity: 1;
-      transform: translateX(0) translateZ(0);
-      filter: blur(0px);
-    }
-    100% {
-      opacity: 0;
-      transform: translateX(30px) translateZ(0);
-      filter: blur(1px);
-    }
+    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
+    /* 特殊强调效果 */
   }
 </style>

src/client/components/danmaku/BaseDanmakuItem.vue

@@ -191,18 +191,3 @@ defineExpose({
 <template>
   <slot />
 </template>
-
-<style scoped>
-/* 公共基础动画样式 */
-@keyframes danmaku-out {
-  from {
-    opacity: var(--dw-opacity);
-    transform: translateX(0);
-  }
-
-  to {
-    opacity: 0;
-    transform: translateX(-30px);
-  }
-}
-</style>