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HTML

              
                <div class="container">
      <div class="message-box">
        <p class="message-title"></p>
        <p class="message"></p>
        <div class="close-btn">
          <span class="close">&times;</span>
        </div>
      </div>
      <div class="v-laser vl1"></div>
      <div class="v-laser vl2"></div>
      <div class="v-laser vl3"></div>
      <div class="v-laser vl4"></div>
      <div class="v-laser vl5"></div>
      <div class="v-laser vl6"></div>
      <div class="h-laser hl1"></div>
      <div class="h-laser hl2"></div>
      <div class="h-laser hl3"></div>
      <div class="h-laser hl4"></div>
      <div class="h-laser hl5"></div>
      <div class="h-laser hl6"></div>
      <div class="ruby-wrap">
        <div class="ruby r-upper-left"></div>
        <div class="ruby r-upper-middle"></div>
        <div class="ruby r-upper-right"></div>
        <div class="ruby r-bottom"></div>
        <div class="ruby r-shadow"></div>
      </div>
      <div class="steal-this">
        <h1>Steal this ruby.</h1>
      </div>
  </div>
              
            
!

CSS

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

* {
  margin: 0;
  padding: 0;
  font-family: 'Merriweather', serif;
}

.container {
  width: 100vw;
  height: 100vh;
  position: relative;
  background: #8f9bbc;
}

.message-box {
  display: none;
  z-index: 2;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 250px;
  height: 100px;
  padding: 20px;
  background: #a31414;
  box-sizing: border-box;
  border-radius: 8px;
  box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3)
}

.message-title, .message {
  color: #fff;
  font-size: 16px;
  text-align: center;
}

.message {
  margin-top: 10px;
  font-size: 12px;
}

.close-btn {
  position: absolute;
  top: -15px;
  right: -15px;
  font-size: 36px;
  font-weight: bold;
  color: #bd2222;
  width: 40px;
  height: 40px;
  background: #de4040;
  border-radius: 50%;
  cursor: pointer;
}

.close {
  position: absolute;
  top: -4px;
  left: 9px;
  user-select: none;
}

.steal-this {
  position: absolute;
  left: 50%;
  bottom: calc(1/4 * 100vh);
  transform: translateX(-50%);
  width: 200px;
  height: 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  color: #a31414;
}

h1 {
  font-size: 24px;
  user-select: none;
}


.v-laser {
  display: none;
  position: absolute;
  width: 3px;
  height: 100vh;
  box-shadow:
    inset 1px 0 10px #fff,
    inset 3px 0 0 #f0f,
    0 0 50px #fff,         
    0 0 20px #f0f; 
} 

.h-laser {
  display: none;
  position: absolute;
  width: 100vw;
  height: 3px;
  box-shadow:
    inset 0 1px 10px #fff,
    inset 0 3px 0 #f0f,
    0 0 50px #fff,         
    0 0 20px #f0f; 
}

.vl1 { left: calc(1/10 * 100vw); }
.vl2 { left: calc(1/5 * 100vw); }
.vl3 { left: calc(1/3 * 100vw); }
.vl4 { right: calc(1/3 * 100vw); } 
.vl5 { right: calc(1/5 * 100vw); } 
.vl6 { right: calc(1/10 * 100vw); } 
.hl1 { top: calc(1/10 * 100vh); }
.hl2 { top: calc(1/5 * 100vh); }
.hl3 { top: calc(1/4 * 100vh); }
.hl4 { bottom: calc(1/4 * 100vh); }
.hl5 { bottom: calc(1/5 * 100vh); }
.hl6 { bottom: calc(1/10 * 100vh); }

.ruby-wrap {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 150px;
  height: 150px;
  box-sizing: border-box;
  cursor: grab;
}

.ruby {
  position: absolute;
}

.r-upper-left {
  width: 0;
  height: 0;
  border-left: 37px solid transparent;
  border-right: 37px solid transparent;
  border-bottom: 40px solid #bd2222;
}

.r-upper-middle {
  left: 37px;
  width: 0;
  height: 0;
  border-left: 37px solid transparent;
  border-right: 37px solid transparent;
  border-top: 40px solid #de4040;
}

.r-upper-right {
  left: 74px;
  width: 0;
  height: 0;
  border-left: 37px solid transparent;
  border-right: 37px solid transparent;
  border-bottom: 40px solid #fa6161;
}

.r-bottom {
  top: 40px;
  width: 0;
  height: 0;
  border-left: 74px solid transparent;
  border-right: 74px solid transparent;
  border-top: 74px solid #a31414;
}

.r-shadow {
  top: 130px;
  left: 10px;
  width: 130px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.1);
}

              
            
!

JS

              
                document.addEventListener('DOMContentLoaded', () => {

  // ==== ELEMENTS ==== //

  const container = document.querySelector('.container');
  const stealThis = document.querySelector('.steal-this');

  // Game Over box
  const messageBox = document.querySelector('.message-box'),
        messageTitle = document.querySelector('.message-title'),
        message = document.querySelector('.message'),
        closeBtn = document.querySelector('.close-btn');

  // Lasers
  const vLasers = document.querySelectorAll('.v-laser'),
        hLasers = document.querySelectorAll('.h-laser');
  
  let vIndex, hIndex; // used to check if touching laser

  // Laser positions 
  // Get added once ruby is clicked to account for window resizing
  let vLasersPos = [];
  let hLasersPos = [];
  
  // Ruby divs
  const ruby = document.querySelector('.ruby-wrap'),
        upperLeft = document.querySelector('.r-upper-left'),
        upperMiddle = document.querySelector('.r-upper-middle'),
        upperRight = document.querySelector('.r-upper-right');

  // Ruby Colors
  // Colors start with red, light red, highlight red, and then shadow red.
  const rubyColors = ['#bd2222', '#de4040', '#fa6161', '#a31414'];

  const color0 = `40px solid ${rubyColors[0]}`,
        color1 = `40px solid ${rubyColors[1]}`,
        color2 = `40px solid ${rubyColors[2]}`;

  let isGameOver = false;
  let flashLasers;

  // ==== FUNCTIONS ==== //

  // Ruby Rotation Fns
  function changeColors() {
    upperLeft.style.borderBottom = color0;
    upperMiddle.style.borderTop = color1;
    upperRight.style.borderBottom = color2;
    setTimeout(() => {
      upperLeft.style.borderBottom = color2;
      upperMiddle.style.borderTop = color1;
      upperRight.style.borderBottom = color0;
      }, 500);
  }

  function rotateRuby() {
    setInterval(() => {
      changeColors();
    }, 1000);
  }
  
  rotateRuby();

  // Ruby grab and drag
  function dragRuby(elmnt) {
    let pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
    if (document.querySelector('.ruby')) {
      document.querySelector('.ruby').onmousedown = dragMouseDown();
    } else {
      elmnt.onmousedown = dragMouseDown();
    }

    function dragMouseDown(e) {
      e = e || window.event;
      e.preventDefault();
      // get the mouse cursor position at startup
      pos3 = e.clientX;
      pos4 = e.clientY;
      document.onmouseup = closeDragElement;
      // call a function whenever the cursor moves
      document.onmousemove = elementDrag;
    }

    function elementDrag(e) {
      e = e || window.event;
      e.preventDefault();
      // calculate the new cursor position
      pos1 = pos3 - e.clientX;
      pos2 = pos4 - e.clientY;
      pos3 = e.clientX;
      pos4 = e.clientY;
      // set the element's new position
      elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
      elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
    }

    function closeDragElement() {
      // stop moving when mouse button is released
      document.onmouseup = null;
      document.onmousemove = null;
    }
  }

  function checkforGameOver() {
    // Get border of ruby
    const rect = ruby.getBoundingClientRect();
    const newRectBottom = rect.bottom - 35; // account for shadow
    // Check if ruby is overlapping an "on" horizontal laser
    if (vLasersPos[vIndex] <= rect.right && vLasersPos[vIndex] >= rect.left) {
      clearInterval(flashLasers);
      ruby.style.display = 'none';
      gameOver('laser');
    }
    // Check if ruby is overlapping an "on" vertical laser
    if (hLasersPos[hIndex] >= rect.top && hLasersPos[hIndex] <= newRectBottom) {
      clearInterval(flashLasers);
      ruby.style.display = 'none';
      gameOver('laser');
    }
    // Check for win
    if (
      rect.left <= 0 ||
      rect.right >= window.innerWidth ||
      rect.top <= 0 ||
      newRectBottom >= window.innerHeight
    ) {
      clearInterval(flashLasers);
      ruby.style.display = 'none';
      win();
    }
  }

  // Flash Lasers Randomly
  function displayLasers() {
      // Change background and hide text
      container.style.background = 'linear-gradient(30deg, #ff0000, #ffccff)';
      stealThis.style.visibility = 'hidden';
      // Display lasers 
      vLasers.forEach(laser => laser.style.display = 'block');
      hLasers.forEach(laser => laser.style.display = 'block');
      // Get Laser positions - pushed into arrays
      vLasers.forEach(laser => vLasersPos.push(laser.offsetLeft));
      hLasers.forEach(laser => hLasersPos.push(laser.offsetTop));
      // Then display one random vertical and one random horizontal laser at a time
      flashLasers = setInterval(() => {
        let randomI = Math.floor(Math.random() * 6);
        let randomJ = Math.floor(Math.random() * 6);
  
        setTimeout(() => {
          for (i = 0; i < vLasers.length; i++) {
            if (i === randomI) {
              vLasers[i].style.display = 'block';
              vIndex = i; // assigning which num in array to "display" as on
            } else {
              vLasers[i].style.display = 'none';
            }
          }
        }, 100);
  
        setTimeout(() => {
          for (j = 0; j < hLasers.length; j++) {
            if (j === randomJ) {
              hLasers[j].style.display = 'block';
              hIndex = j; // assigning which num in array to "display" as on
            } else {
              hLasers[j].style.display = 'none';
            }
          }
        }, 200);
        
      }, 200);
    
  }

  function gameOver(id) {
    isGameOver = true;
    if (isGameOver) {
      messageBox.style.display = 'block';
      messageTitle.textContent = 'Game Over:'
    } 
    if (id === 'drop') {
      ruby.style.display = 'none';
      message.textContent = 'You dropped the ruby.'
    } else if (id === 'laser') {
      message.textContent = 'You ran into a security laser.'
    } 
  }

  function win() {
    isGameOver = true;
    if (isGameOver) {
      messageBox.style.display = 'block';
      messageTitle.textContent = 'You Win!';
      message.textContent = 'Congratulations, you are a thief.'
    }
  }

  function reset() {
    isGameOver = false;
    vLasersPos = [];
    hLasersPos = [];
    vLasers.forEach(laser => laser.style.display = 'none');
    hLasers.forEach(laser => laser.style.display = 'none');
    messageBox.style.display = 'none';
    container.style.background = '#8f9bbc';
    // reset the ruby in the center
    ruby.style.display = 'block';
    ruby.style.top = '50%';
    ruby.style.left = '50%';
    ruby.style.transform = 'translate(-50%, -50%)';
    stealThis.style.visibility = 'visible';
  }

  // ==== EVENT LISTENERS ==== //
  ruby.addEventListener('mousedown', () => {
    displayLasers();
    dragRuby(ruby);
  });

  ruby.addEventListener('mousemove', () => checkforGameOver());

  ruby.addEventListener('mouseup', () => {
    if (isGameOver) {
      return;
    } else {
      gameOver('drop');
    };
    clearInterval(flashLasers);
  });

  closeBtn.addEventListener('click', () => reset());

  // Mobile
  // ruby.addEventListener('touchstart', () => {
  //   displayLasers();
  //   dragRuby(ruby);
  // });

  // ruby.addEventListener('touchmove', () => checkforGameOver());

  // ruby.addEventListener('touchend', () => {
  //   if (isGameOver) {
  //     return;
  //   } else {
  //     gameOver('drop');
  //   };
  //   clearInterval(flashLasers);
  // });

  // closeBtn.addEventListener('touchstart', () => reset());
});
              
            
!
999px

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