‘Drag paper’ amazing project using html, css and javascript with source code

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In today’s blog we will create an amazing drag paper project. With which we can move the paper with the cursor. So let’s start without any delay.

01. HTML –

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>CodeJuster</title>
  <link rel='stylesheet' href='https://fonts.googleapis.com/css2?family=Short+Stack&amp;family=Homemade+Apple&amp;display=swap'><link rel="stylesheet" href="./style.css">

</head>
<body>
<div class="paper heart">

</div>

  
<div class="paper image">
  <p>or m tera pyaar me</p>
    <p>gir gaya 😍 </p>
   <img src="images/1.jpeg" />
</div>

<div class="paper image">
  <p>mujhse dosti </p>
  <p> kroge❤️ </p>

  <img src="images/2.jpeg" />
</div>

<div class="paper image">
  <p>Tum to mere dog</p>
   <p> se bhi jyaada pyaare ho ❤️ </p>

  <img src="images/3.jpg" />
</div>



<div class="paper red">
<p class="p1">Kahi jaa rahe to</p>
<p class="p2">khyaal rakhna 😍</p>
</div>

<div class="paper">
<p class="p1">Tum cute ho bey </p>
  <p class="p1">Kalin bhaiya <span style="color: red !important;">❤️</span></p>
</div>

<div class="paper">
<p class="p1">Dekh kya raha hai jaldi se hata!</p>
</div>
<!-- partial -->
  <script  src="./script.js"></script>

</body>
</html>

02. CSS –

@import url('https://fonts.googleapis.com/css2?family=Zeyada&display=swap');




body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;

  background-size: 1000px;
  background-image: url("https://www.psdgraphics.com/wp-content/uploads/2022/01/white-math-paper-texture.jpg");
  background-position: center center;
}

.paper {
  background-image: url("https://i0.wp.com/textures.world/wp-content/uploads/2018/10/2-Millimeter-Paper-Background-copy.jpg?ssl=1");
  background-size: 500px;
  background-position: center center;
  padding: 20px 100px;
/*  min-width: 800px; */
  
  transform: rotateZ(-5deg);
  box-shadow: 1px 15px 20px 0px rgba(0,0,0,0.5);
  
  position: absolute;
}

.paper.heart {
  position: relative;
  width: 200px;
  height: 200px;
  padding: 0;
  border-radius: 50%;
}

.paper.image {
  padding: 10px;
}
.paper.image p {
  font-size: 30px;
}

img {
  max-height: 200px;
  width: 100%;
  user-select: none;
}

.paper.heart::after {
  content: "";
  background-image: url('https://cdn.pixabay.com/photo/2016/03/31/19/25/cartoon-1294994__340.png');
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-size: 150px;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 0.6;
}

p {
  font-family: 'Zeyada';
  font-size: 50px;
  color: rgb(247, 4, 4);
  opacity: 0.75;
  user-select: none;
}

03. JavaScript > mobile.js –

let highestZ = 1;

class Paper {
  holdingPaper = false;
  touchStartX = 0;
  touchStartY = 0;
  touchMoveX = 0;
  touchMoveY = 0;
  touchEndX = 0;
  touchEndY = 0;
  prevTouchX = 0;
  prevTouchY = 0;
  velX = 0;
  velY = 0;
  rotation = Math.random() * 30 - 15;
  currentPaperX = 0;
  currentPaperY = 0;
  rotating = false;

  init(paper) {
    paper.addEventListener('touchmove', (e) => {
      e.preventDefault();
      if(!this.rotating) {
        this.touchMoveX = e.touches[0].clientX;
        this.touchMoveY = e.touches[0].clientY;
        
        this.velX = this.touchMoveX - this.prevTouchX;
        this.velY = this.touchMoveY - this.prevTouchY;
      }
        
      const dirX = e.touches[0].clientX - this.touchStartX;
      const dirY = e.touches[0].clientY - this.touchStartY;
      const dirLength = Math.sqrt(dirX*dirX+dirY*dirY);
      const dirNormalizedX = dirX / dirLength;
      const dirNormalizedY = dirY / dirLength;

      const angle = Math.atan2(dirNormalizedY, dirNormalizedX);
      let degrees = 180 * angle / Math.PI;
      degrees = (360 + Math.round(degrees)) % 360;
      if(this.rotating) {
        this.rotation = degrees;
      }

      if(this.holdingPaper) {
        if(!this.rotating) {
          this.currentPaperX += this.velX;
          this.currentPaperY += this.velY;
        }
        this.prevTouchX = this.touchMoveX;
        this.prevTouchY = this.touchMoveY;

        paper.style.transform = `translateX(${this.currentPaperX}px) translateY(${this.currentPaperY}px) rotateZ(${this.rotation}deg)`;
      }
    })

    paper.addEventListener('touchstart', (e) => {
      if(this.holdingPaper) return; 
      this.holdingPaper = true;
      
      paper.style.zIndex = highestZ;
      highestZ += 1;
      
      this.touchStartX = e.touches[0].clientX;
      this.touchStartY = e.touches[0].clientY;
      this.prevTouchX = this.touchStartX;
      this.prevTouchY = this.touchStartY;
    });
    paper.addEventListener('touchend', () => {
      this.holdingPaper = false;
      this.rotating = false;
    });

    paper.addEventListener('gesturestart', (e) => {
      e.preventDefault();
      this.rotating = true;
    });
    paper.addEventListener('gestureend', () => {
      this.rotating = false;
    });
  }
}

const papers = Array.from(document.querySelectorAll('.paper'));

papers.forEach(paper => {
  const p = new Paper();
  p.init(paper);
});

03. JavaScript > script.js –

let highestZ = 1;

class Paper {
  holdingPaper = false;
  mouseTouchX = 0;
  mouseTouchY = 0;
  mouseX = 0;
  mouseY = 0;
  prevMouseX = 0;
  prevMouseY = 0;
  velX = 0;
  velY = 0;
  rotation = Math.random() * 30 - 15;
  currentPaperX = 0;
  currentPaperY = 0;
  rotating = false;

  init(paper) {
    document.addEventListener('mousemove', (e) => {
      if(!this.rotating) {
        this.mouseX = e.clientX;
        this.mouseY = e.clientY;
        
        this.velX = this.mouseX - this.prevMouseX;
        this.velY = this.mouseY - this.prevMouseY;
      }
        
      const dirX = e.clientX - this.mouseTouchX;
      const dirY = e.clientY - this.mouseTouchY;
      const dirLength = Math.sqrt(dirX*dirX+dirY*dirY);
      const dirNormalizedX = dirX / dirLength;
      const dirNormalizedY = dirY / dirLength;

      const angle = Math.atan2(dirNormalizedY, dirNormalizedX);
      let degrees = 180 * angle / Math.PI;
      degrees = (360 + Math.round(degrees)) % 360;
      if(this.rotating) {
        this.rotation = degrees;
      }

      if(this.holdingPaper) {
        if(!this.rotating) {
          this.currentPaperX += this.velX;
          this.currentPaperY += this.velY;
        }
        this.prevMouseX = this.mouseX;
        this.prevMouseY = this.mouseY;

        paper.style.transform = `translateX(${this.currentPaperX}px) translateY(${this.currentPaperY}px) rotateZ(${this.rotation}deg)`;
      }
    })

    paper.addEventListener('mousedown', (e) => {
      if(this.holdingPaper) return; 
      this.holdingPaper = true;
      
      paper.style.zIndex = highestZ;
      highestZ += 1;
      
      if(e.button === 0) {
        this.mouseTouchX = this.mouseX;
        this.mouseTouchY = this.mouseY;
        this.prevMouseX = this.mouseX;
        this.prevMouseY = this.mouseY;
      }
      if(e.button === 2) {
        this.rotating = true;
      }
    });
    window.addEventListener('mouseup', () => {
      this.holdingPaper = false;
      this.rotating = false;
    });
  }
}

const papers = Array.from(document.querySelectorAll('.paper'));

papers.forEach(paper => {
  const p = new Paper();
  p.init(paper);
});

Result :-

drag paper codejuster

drag paper codejuster

 

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