Initial commit

src/components/cardStack/hooks/useDepth3DAnimation.ts

@@ -0,0 +1,118 @@
+import { useEffect, useState, useRef, RefObject } from "react";
+
+const MOBILE_BREAKPOINT = 768;
+const ANIMATION_SPEED = 0.05;
+const ROTATION_SPEED = 0.1;
+const MOUSE_MULTIPLIER = 0.5;
+const ROTATION_MULTIPLIER = 0.25;
+
+interface UseDepth3DAnimationProps {
+  itemRefs: RefObject<(HTMLElement | null)[]>;
+  containerRef: RefObject<HTMLDivElement | null>;
+  perspectiveRef?: RefObject<HTMLDivElement | null>;
+  isEnabled: boolean;
+}
+
+export const useDepth3DAnimation = ({
+  itemRefs,
+  containerRef,
+  perspectiveRef,
+  isEnabled,
+}: UseDepth3DAnimationProps) => {
+  const [isMobile, setIsMobile] = useState(false);
+
+  // Detect mobile viewport
+  useEffect(() => {
+    const checkMobile = () => {
+      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT);
+    };
+
+    checkMobile();
+    window.addEventListener("resize", checkMobile);
+
+    return () => {
+      window.removeEventListener("resize", checkMobile);
+    };
+  }, []);
+
+  // 3D mouse-tracking effect (desktop only)
+  useEffect(() => {
+    if (!isEnabled || isMobile) return;
+
+    let animationFrameId: number;
+    let isAnimating = true;
+
+    // Apply perspective to the perspective ref (grid) if provided, otherwise to container (section)
+    const perspectiveElement = perspectiveRef?.current || containerRef.current;
+    if (perspectiveElement) {
+      perspectiveElement.style.perspective = "1200px";
+      perspectiveElement.style.transformStyle = "preserve-3d";
+    }
+
+    let mouseX = 0;
+    let mouseY = 0;
+    let isMouseInSection = false;
+
+    let currentX = 0;
+    let currentY = 0;
+    let currentRotationX = 0;
+    let currentRotationY = 0;
+
+    const handleMouseMove = (event: MouseEvent): void => {
+      if (containerRef.current) {
+        const rect = containerRef.current.getBoundingClientRect();
+        isMouseInSection =
+          event.clientX >= rect.left &&
+          event.clientX <= rect.right &&
+          event.clientY >= rect.top &&
+          event.clientY <= rect.bottom;
+      }
+
+      if (isMouseInSection) {
+        mouseX = (event.clientX / window.innerWidth) * 100 - 50;
+        mouseY = (event.clientY / window.innerHeight) * 100 - 50;
+      }
+    };
+
+    const animate = (): void => {
+      if (!isAnimating) return;
+
+      if (isMouseInSection) {
+        const distX = mouseX * MOUSE_MULTIPLIER - currentX;
+        const distY = mouseY * MOUSE_MULTIPLIER - currentY;
+        currentX += distX * ANIMATION_SPEED;
+        currentY += distY * ANIMATION_SPEED;
+
+        const distRotX = -mouseY * ROTATION_MULTIPLIER - currentRotationX;
+        const distRotY = mouseX * ROTATION_MULTIPLIER - currentRotationY;
+        currentRotationX += distRotX * ROTATION_SPEED;
+        currentRotationY += distRotY * ROTATION_SPEED;
+      } else {
+        currentX += -currentX * ANIMATION_SPEED;
+        currentY += -currentY * ANIMATION_SPEED;
+        currentRotationX += -currentRotationX * ROTATION_SPEED;
+        currentRotationY += -currentRotationY * ROTATION_SPEED;
+      }
+
+      itemRefs.current?.forEach((ref) => {
+        if (!ref) return;
+        ref.style.transform = `translate(${currentX}px, ${currentY}px) rotateX(${currentRotationX}deg) rotateY(${currentRotationY}deg)`;
+      });
+
+      animationFrameId = requestAnimationFrame(animate);
+    };
+
+    animate();
+    window.addEventListener("mousemove", handleMouseMove);
+
+    return () => {
+      window.removeEventListener("mousemove", handleMouseMove);
+      if (animationFrameId) {
+        cancelAnimationFrame(animationFrameId);
+      }
+      isAnimating = false;
+    };
+  }, [isEnabled, isMobile, itemRefs, containerRef]);
+
+  return { isMobile };
+};