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Animated Grid Pattern

Animated Grid Pattern

A animated background grid pattern made with SVGs, fully customizable using Tailwind CSS.

Animated Grid Pattern

Installation

Copy and paste the following code into your project.

components/magicui/animated-grid-pattern.tsx
"use client";
 
import { cn } from "@/lib/utils";
import { motion } from "framer-motion";
import { useEffect, useId, useRef, useState } from "react";
 
interface GridPatternProps {
  width?: number;
  height?: number;
  x?: number;
  y?: number;
  strokeDasharray?: any;
  numSquares?: number;
  className?: string;
  maxOpacity?: number;
  duration?: number;
  repeatDelay?: number;
}
 
export function GridPattern({
  width = 40,
  height = 40,
  x = -1,
  y = -1,
  strokeDasharray = 0,
  numSquares = 50,
  className,
  maxOpacity = 0.5,
  duration = 4,
  repeatDelay = 0.5,
  ...props
}: GridPatternProps) {
  const id = useId();
  const containerRef = useRef(null);
  const [dimensions, setDimensions] = useState({ width: 0, height: 0 });
  const [squares, setSquares] = useState(() => generateSquares(numSquares));
 
  function getPos() {
    return [
      Math.floor((Math.random() * dimensions.width) / width),
      Math.floor((Math.random() * dimensions.height) / height),
    ];
  }
 
  // Adjust the generateSquares function to return objects with an id, x, and y
  function generateSquares(count: number) {
    return Array.from({ length: count }, (_, i) => ({
      id: i,
      pos: getPos(),
    }));
  }
 
  // Function to update a single square's position
  const updateSquarePosition = (id: number) => {
    setSquares((currentSquares) =>
      currentSquares.map((sq) =>
        sq.id === id
          ? {
              ...sq,
              pos: getPos(),
            }
          : sq,
      ),
    );
  };
 
  // Update squares to animate in
  useEffect(() => {
    if (dimensions.width && dimensions.height) {
      setSquares(generateSquares(numSquares));
    }
  }, [dimensions, numSquares]);
 
  // Resize observer to update container dimensions
  useEffect(() => {
    const resizeObserver = new ResizeObserver((entries) => {
      for (let entry of entries) {
        setDimensions({
          width: entry.contentRect.width,
          height: entry.contentRect.height,
        });
      }
    });
 
    if (containerRef.current) {
      resizeObserver.observe(containerRef.current);
    }
 
    return () => {
      if (containerRef.current) {
        resizeObserver.unobserve(containerRef.current);
      }
    };
  }, [containerRef]);
 
  return (
    <svg
      ref={containerRef}
      aria-hidden="true"
      className={cn(
        "pointer-events-none absolute inset-0 h-full w-full fill-gray-400/30 stroke-gray-400/30",
        className,
      )}
      {...props}
    >
      <defs>
        <pattern
          id={id}
          width={width}
          height={height}
          patternUnits="userSpaceOnUse"
          x={x}
          y={y}
        >
          <path
            d={`M.5 ${height}V.5H${width}`}
            fill="none"
            strokeDasharray={strokeDasharray}
          />
        </pattern>
      </defs>
      <rect width="100%" height="100%" fill={`url(#${id})`} />
      <svg x={x} y={y} className="overflow-visible">
        {squares.map(({ pos: [x, y], id }, index) => (
          <motion.rect
            initial={{ opacity: 0 }}
            animate={{ opacity: maxOpacity }}
            transition={{
              duration,
              repeat: 1,
              delay: index * 0.1,
              repeatType: "reverse",
            }}
            onAnimationComplete={() => updateSquarePosition(id)}
            key={`${x}-${y}-${index}`}
            width={width - 1}
            height={height - 1}
            x={x * width + 1}
            y={y * height + 1}
            fill="currentColor"
            strokeWidth="0"
          />
        ))}
      </svg>
    </svg>
  );
}
 
export default GridPattern;

Props

GridPattern

PropTypeDescriptionDefault
classNamestringAdditional classes to be added to the pattern-
widthnumberWidth of the pattern40
heightnumberHeight of the pattern40
xnumberX offset of the pattern-1
ynumberY offset of the pattern-1
strokeDasharraynumberStroke dash array of the pattern0
numSquaresnumberNumber of squares in the pattern200
maxOpacitynumberMaximum opacity of the pattern0.5
durationnumberDuration of the animation1
repeatDelaynumberRepeat delay of the animation0.5