feat(metronome): 节拍器下方加脚步行走动画

- 节拍器圆下方新增"脚印踏步"动画区域 · 纯 CSS+SVG-like(div 拼接),不依赖 canvas/Lottie/视频 · 左右脚交替踏步,起脚时落地阴影变小变淡,落地时变大变浓 · 1 拍 1 步,左右各占半周期(animation-delay 错相 0.5) - 跟节拍器同步:CSS 变量 --step-duration = 60000/bpm,BPM 改了步频立刻跟着变;暂停时 animation-play-state 自动停 - 智能配速提示: · <70 BPM 慢走 · 适合热身 · 70-99 健走 · 日常配速 · 100-129 快走 · 心率提升 · 130-169 慢跑 · 进入有氧 · ≥170 快跑 · 高强度 - 重构 ringStyle/coreStyle 为统一 rootStyle,挂在根节点用 CSS 变量级联(--beat-duration / --step-duration) Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-25 12:10:44 +08:00
parent edc9993403
commit 69da8066a6
1 changed files with 244 additions and 17 deletions
@@ -1,20 +1,11 @@
 <template>
-    <view class="metronome-page">
+    <view class="metronome-page" :style="rootStyle">
        <view class="pulse-stage" @click="togglePlay">
-            <view
-                class="pulse-ring"
-                :class="{ playing: isPlaying }"
-                :style="ringStyle"
-            />
-            <view
-                class="pulse-ring pulse-ring-2"
-                :class="{ playing: isPlaying }"
-                :style="ringStyle"
-            />
+            <view class="pulse-ring" :class="{ playing: isPlaying }" />
+            <view class="pulse-ring pulse-ring-2" :class="{ playing: isPlaying }" />
            <view
                class="pulse-core"
                :class="{ playing: isPlaying, accent: isAccent }"
-                :style="coreStyle"
            >
                <text class="bpm-num">{{ bpm }}</text>
                <text class="bpm-label">速度</text>
@@ -28,6 +19,34 @@
            </view>
        </view>

+        <!-- 脚步行走动画:跟随 BPM 同步,1 拍 1 步 -->
+        <view class="walker" :class="{ playing: isPlaying }">
+            <view class="foot foot-left">
+                <view class="footprint">
+                    <view class="heel" />
+                    <view class="toe toe-1" />
+                    <view class="toe toe-2" />
+                    <view class="toe toe-3" />
+                    <view class="toe toe-4" />
+                    <view class="toe toe-5" />
+                </view>
+                <view class="shadow" />
+            </view>
+            <view class="foot foot-right">
+                <view class="footprint">
+                    <view class="heel" />
+                    <view class="toe toe-1" />
+                    <view class="toe toe-2" />
+                    <view class="toe toe-3" />
+                    <view class="toe toe-4" />
+                    <view class="toe toe-5" />
+                </view>
+                <view class="shadow" />
+            </view>
+            <view class="ground" />
+            <text class="walker-tip">{{ walkerTip }}</text>
+        </view>
+
        <view class="bpm-control">
            <view class="step-btn big" @click="adjustBpm(-10)">
                <text class="step-num">-10</text>
@@ -113,12 +132,9 @@ const togglePlay = () => {
    }
 }

-const ringStyle = computed(() => ({
-    '--beat-duration': `${intervalMs.value}ms`,
-}))
-
-const coreStyle = computed(() => ({
+const rootStyle = computed(() => ({
    '--beat-duration': `${intervalMs.value}ms`,
+    '--step-duration': `${intervalMs.value}ms`,
 }))

 const statusHint = computed(() => {
@@ -129,6 +145,15 @@ const statusHint = computed(() => {
    return '轻点圆圈开始'
 })

+const walkerTip = computed(() => {
+    if (!isPlaying.value) return '开始后跟节奏踏步'
+    if (bpm.value < 70) return '慢走 · 适合热身'
+    if (bpm.value < 100) return '健走 · 日常配速'
+    if (bpm.value < 130) return '快走 · 心率提升'
+    if (bpm.value < 170) return '慢跑 · 进入有氧'
+    return '快跑 · 高强度'
+})
+
 onShow(() => {
    preload()
 })
@@ -288,6 +313,208 @@ onUnmounted(() => {
    }
 }

+/* ===== 脚步行走动画 ===== */
+.walker {
+    position: relative;
+    width: 100%;
+    height: 220rpx;
+    margin-bottom: 50rpx;
+    display: flex;
+    justify-content: center;
+    align-items: flex-end;
+    overflow: hidden;
+}
+
+.walker .ground {
+    position: absolute;
+    bottom: 36rpx;
+    left: 50%;
+    transform: translateX(-50%);
+    width: 480rpx;
+    height: 2rpx;
+    background: linear-gradient(
+        90deg,
+        transparent,
+        rgba(34, 197, 94, 0.45) 30%,
+        rgba(34, 197, 94, 0.45) 70%,
+        transparent
+    );
+}
+
+.walker .walker-tip {
+    position: absolute;
+    top: 12rpx;
+    left: 50%;
+    transform: translateX(-50%);
+    font-size: 28rpx;
+    color: #cbd5e1;
+    letter-spacing: 2rpx;
+    padding: 6rpx 24rpx;
+    background: rgba(255, 255, 255, 0.06);
+    border-radius: 24rpx;
+}
+
+.foot {
+    position: absolute;
+    bottom: 36rpx;
+    width: 110rpx;
+    height: 130rpx;
+
+    .footprint {
+        position: relative;
+        width: 100%;
+        height: 100%;
+        transform-origin: bottom center;
+    }
+
+    /* 脚跟+脚掌:一颗椭圆形 */
+    .heel {
+        position: absolute;
+        bottom: 4rpx;
+        left: 50%;
+        transform: translateX(-50%);
+        width: 78rpx;
+        height: 90rpx;
+        background: linear-gradient(135deg, #22c55e, #16a34a);
+        border-radius: 50% 50% 46% 46% / 56% 56% 44% 44%;
+        box-shadow: 0 4rpx 8rpx rgba(0, 0, 0, 0.15);
+    }
+
+    /* 5 个脚趾(右脚视角:从左到右大→小) */
+    .toe {
+        position: absolute;
+        background: #16a34a;
+        border-radius: 50%;
+    }
+    .toe-1 {
+        width: 22rpx;
+        height: 24rpx;
+        bottom: 96rpx;
+        left: 18rpx;
+    }
+    .toe-2 {
+        width: 18rpx;
+        height: 20rpx;
+        bottom: 102rpx;
+        left: 40rpx;
+    }
+    .toe-3 {
+        width: 16rpx;
+        height: 18rpx;
+        bottom: 100rpx;
+        left: 58rpx;
+    }
+    .toe-4 {
+        width: 14rpx;
+        height: 16rpx;
+        bottom: 94rpx;
+        left: 72rpx;
+    }
+    .toe-5 {
+        width: 12rpx;
+        height: 14rpx;
+        bottom: 86rpx;
+        left: 84rpx;
+    }
+
+    .shadow {
+        position: absolute;
+        bottom: -8rpx;
+        left: 50%;
+        transform: translateX(-50%) scaleX(1);
+        width: 90rpx;
+        height: 12rpx;
+        background: radial-gradient(
+            ellipse at center,
+            rgba(0, 0, 0, 0.4),
+            transparent 70%
+        );
+        border-radius: 50%;
+    }
+}
+
+/* 左脚:置左,内层 footprint 镜像翻转(大脚趾朝外侧) */
+.foot-left {
+    left: calc(50% - 130rpx);
+}
+.foot-left .footprint {
+    transform: scaleX(-1);
+}
+
+/* 右脚:置右 */
+.foot-right {
+    left: calc(50% + 20rpx);
+}
+
+/* 跟节拍同步:1 拍 1 步,左右各占半周期(0.5 偏移) */
+.walker.playing {
+    .foot-left .footprint {
+        animation: foot-step-left var(--step-duration, 750ms) ease-in-out infinite;
+    }
+    .foot-right .footprint {
+        animation: foot-step-right var(--step-duration, 750ms) ease-in-out infinite;
+        animation-delay: calc(var(--step-duration, 750ms) * -0.5);
+    }
+    .foot-left .shadow {
+        animation: shadow-pulse var(--step-duration, 750ms) ease-in-out infinite;
+    }
+    .foot-right .shadow {
+        animation: shadow-pulse var(--step-duration, 750ms) ease-in-out infinite;
+        animation-delay: calc(var(--step-duration, 750ms) * -0.5);
+    }
+}
+
+@keyframes foot-step-right {
+    0%,
+    100% {
+        transform: translateY(0) rotate(0deg);
+    }
+    25% {
+        transform: translateY(-44rpx) rotate(8deg);
+    }
+    50% {
+        transform: translateY(-2rpx) rotate(0deg);
+    }
+    75% {
+        transform: translateY(0) rotate(0deg);
+    }
+}
+
+/* 左脚保留 scaleX(-1) 镜像 */
+@keyframes foot-step-left {
+    0%,
+    100% {
+        transform: scaleX(-1) translateY(0) rotate(0deg);
+    }
+    25% {
+        transform: scaleX(-1) translateY(-44rpx) rotate(8deg);
+    }
+    50% {
+        transform: scaleX(-1) translateY(-2rpx) rotate(0deg);
+    }
+    75% {
+        transform: scaleX(-1) translateY(0) rotate(0deg);
+    }
+}
+
+@keyframes shadow-pulse {
+    0%,
+    100% {
+        opacity: 0.55;
+        transform: translateX(-50%) scaleX(1);
+    }
+    25% {
+        /* 抬脚最高时阴影最淡最小 */
+        opacity: 0.15;
+        transform: translateX(-50%) scaleX(0.55);
+    }
+    50% {
+        /* 落地瞬间阴影最浓 */
+        opacity: 0.7;
+        transform: translateX(-50%) scaleX(1.1);
+    }
+}
+
 /* ===== BPM 步进按钮 ===== */
 .bpm-control {
    width: 100%;