complete mouse move

awkale · awkale · commit f8936d064543 · 2018-10-21T15:59:39.000-04:00
diff --git a/16 - Mouse Move Shadow/index-start.html b/16 - Mouse Move Shadow/index-start.html
@@ -31,6 +31,33 @@ <h1 contenteditable>🔥WOAH!</h1>
   </style>
 
 <script>
+  const hero = document.querySelector('.hero');
+  const text = hero.querySelector('h1');
+  const walk = 50; // 500 = 100px
+
+  function shadow(e) {
+    const { offsetWidth: width, offsetHeight: height } = hero;
+    let { offsetX: x, offsetY: y } = e;
+
+    // to prevent using coordinates when the target changes to h1
+    if (this !== e.target) {
+      x = x + e.target.offsetLeft;
+      y = y + e.target.offsetTop;
+    }
+
+    const xWalk = Math.round((x / width * walk) - (walk / 2));
+    const yWalk = Math.round((y / height * walk) - (walk / 2));
+
+    text.style.textShadow = `
+      ${xWalk}px ${yWalk}px 0 rgba(255,0,255,0.7),
+      ${xWalk * -1}px ${yWalk}px 0 rgba(0,255,255,0.7),
+      ${yWalk}px ${xWalk * -1}px 0 rgba(0,255,0,0.7),
+      ${yWalk * -1}px ${xWalk}px 0 rgba(0,0,255,0.7)
+    `;
+  }
+
+  hero.addEventListener('mousemove', shadow);
+
 </script>
 </body>
 </html>
