Space Invaders added, logic to fill every box after 3 seconds added a…

…s well!
Bhardwaj-Himanshu · Mar 16, 2024 · c51c868 · c51c868
1 parent c3f23b2
commit c51c868
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diff --git a/index.html b/index.html
@@ -28,6 +28,9 @@ <h2>Vanilla JS Projects</h2>
         <a href="./imageSearchApp/imageSearchApp.html" target="_blank">
           <button>Image Search App</button>
         </a>
+        <a href="./jsSpaceInvaders/SpaceInvaders.html" target="_blank">
+          <button>Space Invaders</button>
+        </a>
       </div>
 
       <div class="buttons React">

diff --git a/jsSpaceInvaders/SpaceInvaders.css b/jsSpaceInvaders/SpaceInvaders.css
@@ -0,0 +1,22 @@
+body {
+  background-color: pink;
+  display: flex;
+  flex-direction: column;
+  row-gap: 7rem;
+  align-items: center;
+  justify-content: end;
+}
+
+.grid {
+  display: flex;
+  flex-wrap: wrap;
+  background-color: white;
+  border: 3px solid black;
+  width: 300px;
+  height: 300px;
+}
+
+.grid div {
+  width: 20px;
+  height: 20px;
+}
diff --git a/jsSpaceInvaders/SpaceInvaders.html b/jsSpaceInvaders/SpaceInvaders.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Space Invaders</title>
+    <link rel="stylesheet" href="SpaceInvaders.css" />
+  </head>
+  <body>
+    <h1 class="result">0</h1>
+    <div class="grid"></div>
+    <script src="Spaceinvaders.js"></script>
+  </body>
+</html>
diff --git a/jsSpaceInvaders/Spaceinvaders.js b/jsSpaceInvaders/Spaceinvaders.js
@@ -0,0 +1,37 @@
+const grid = document.querySelector('.grid');
+const resultDisplay = document.querySelector('.result');
+const width = 15;
+// A grid_array that contains all the created squares numbered 0-224
+let grid_array = [];
+
+// An alien Invaders array, which contains random numbers, but they get incremeneted
+const alienInvaders = [
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 15, 16, 17, 18, 19, 20, 21, 22, 28, 29, 30, 31,
+  32, 33, 34, 35,
+];
+
+// So we are essentially looking for a 15x15 matrix or grid
+for (let i = 0; i < width * width; i++) {
+  // creating a new sqaure div everytime
+  const square = document.createElement('div');
+  // setting it's inner text to be no. of square
+  square.textContent = i;
+  // appending it to the DOM
+  grid.appendChild(square);
+  // appending it to the grid_array
+  grid_array.push(square);
+}
+
+setInterval(() => {
+  for (let i = 0; i < alienInvaders.length; i++) {
+    // We get the element number we need to change
+    const alienIndex = alienInvaders[i];
+    // Then we get the <div> cell from grid_array using element as element index for grid_array
+    const gridCell = grid_array[alienIndex];
+    // change the style to red
+    gridCell.style.backgroundColor = 'red';
+    // increment the alienInvaders
+    alienInvaders[i]++;
+  }
+  console.log(alienInvaders);
+}, 3000);