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config/js/smoothScoll.js

@@ -0,0 +1,64 @@
+(function() {
+      let scrollCurrent = window.scrollY || 0;
+      let velocity = 0;
+      let isAnimating = false;
+      const friction = 0.95;
+      const accelerationFactor = 0.05;
+
+      function animate() {
+        velocity *= friction;
+        
+        // 计算新的滚动位置
+        const newScrollPosition = scrollCurrent + velocity;
+        
+        // 获取文档最大可滚动高度
+        const maxScroll = document.documentElement.scrollHeight - window.innerHeight;
+        
+        // 边界检查
+        if (newScrollPosition <= 0) {
+          scrollCurrent = 0;
+          velocity *= 0.5; // 触顶时快速减速
+        } else if (newScrollPosition >= maxScroll) {
+          scrollCurrent = maxScroll;
+          velocity *= 0.5; // 触底时快速减速
+        } else {
+          scrollCurrent = newScrollPosition;
+        }
+
+        window.scrollTo(0, scrollCurrent);
+
+        // 当速度足够小或触及边界时停止动画
+        if (Math.abs(velocity) > 0.5 && scrollCurrent > 0 && scrollCurrent < maxScroll) {
+          requestAnimationFrame(animate);
+        } else {
+          isAnimating = false;
+        }
+      }
+
+      window.addEventListener('wheel', function(e) {
+        e.preventDefault();
+        
+        let delta = e.deltaY;
+        if (e.deltaMode === 1) {
+          delta *= 33;
+        } else if (e.deltaMode === 2) {
+          delta *= window.innerHeight;
+        }
+
+        // 获取当前滚动位置和最大滚动位置
+        const currentScroll = window.scrollY;
+        const maxScroll = document.documentElement.scrollHeight - window.innerHeight;
+
+        // 在边界处减小加速度
+        if ((currentScroll <= 0 && delta < 0) || (currentScroll >= maxScroll && delta > 0)) {
+          delta *= 0.3; // 在边界处降低滚动速度
+        }
+
+        velocity += delta * accelerationFactor;
+
+        if (!isAnimating) {
+          isAnimating = true;
+          requestAnimationFrame(animate);
+        }
+      }, { passive: false });
+    })();