Ping Ball Game (#127)

## Related Issue #109 [Cite any related issue(s) this pull request addresses. If none, simply state "None”] write issue no. here ## Email id used to regsiter for VSoc'24: monishr608@gmail.com ## Description [Please include a brief description of the changes or features added] ## Type of PR - [ ] Bug fix - [ ] Feature enhancement - [ ] Documentation update - [ ] Security enhancement - [ ] Other (specify): _______________ check in issue by entering [X] in boxes ## Screenshots / Videos (if applicable) https://github.com/dhairyagothi/50_days_50_web_project/assets/140420819/76a8fc58-6928-44dd-a012-47c51bee41ad [Attach any relevant screenshots or videos demonstrating the changes] ## Checklist - [ ] I have performed a self-review of my code. - [ ] I have read and followed the Contribution Guidelines. - [ ] I have tested the changes thoroughly before submitting this pull request. - [ ] I have provided relevant issue numbers, screenshots, and videos after making the changes. - [ ] I have commented my code, particularly in hard-to-understand areas. - [ ] I have followed the code style guidelines of this project. - [ ] I have checked for any existing open issues that my pull request may address. - [ ] I have ensured that my changes do not break any existing functionality. - [ ] Each contributor is allowed to create a maximum of 4 issues per day. This helps us manage and address issues efficiently. - [ ] I have read the resources for guidance listed below. - [ ] I have followed security best practices in my code changes. check in issue by entering [X] in boxes ## Additional Context [Include any additional information or context that might be helpful for reviewers.] ## Contribution Guidelines Thank you for considering contributing to our project! To ensure smooth collaboration and effective contribution management, please adhere to the following guidelines: ### Issue Creation 1. **Limit on Issues:** - Each contributor is allowed to create a maximum of **4 issues per day**. This helps us manage and address issues efficiently. ### Contribution Levels 2. **Basic Contributions:** - This project is primarily focused on documentation. Most of the setup has been completed, so contributors will generally need to work on basic code tasks, such as writing tests. - For these tasks, issues will be assigned the **Easy** label. 3. **Acknowledging Hard Work:** - If a contributor puts in significant effort on a task, the issue will be upgraded to **Medium**. This is our way of recognizing and appreciating extra effort. 4. **Feature Additions and Component Work:** - Contributors working on new features or components using JSX/TSX will be assigned a level based on the complexity and quality of their work. - The more complex and valuable the contribution, the higher the level assigned. ### Level Definitions - **Easy:** - Tasks are straightforward, such as fixing minor bugs, writing tests, or making simple documentation updates. - **Medium:** - Tasks require more effort, such as addressing complex bugs, improving existing features, or making substantial documentation improvements. - **Hard:** - Tasks are highly complex and involve significant new feature development, major refactoring, or extensive contributions to the project’s core components. We look forward to your contributions and appreciate your effort in helping us improve the project!
dhairyagothi · Jun 20, 2024 · 9485723 · 9485723
2 parents b41afcf + 7ef4897
commit 9485723
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diff --git a/public/index.html b/public/index.html
@@ -264,9 +264,9 @@
             <a href="Palindrome_Generator/index.html" class="demo-link">Demo</a>
         </div>
         <div class="table">
-            <div class="day-number">Day 47</div>
-            <div class="project-name">Budget Tracker</div>
-            <a href="Budget Tracker/index.html" class="demo-link">Demo</a>
+            <div class="day-number">Day 48</div>
+            <div class="project-name">Ping Pong Game</div>
+            <a href="ping/index.html" class="demo-link">Demo</a>
         </div>
     </div>
 

diff --git a/public/ping/index.html b/public/ping/index.html
@@ -0,0 +1,24 @@
+<html lang="en">
+<head>
+ <meta charset="UTF-8">
+ <meta http-equiv="X-UA-Compatible" content="IE=edge">
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+ <link rel="stylesheet" href="style.css">
+ <script src="script.js" defer></script>
+ <title>Ping Pong Game</title>
+</head>
+<body>
+ <div class="header">
+  <img src="https://img.freepik.com/premium-vector/table-tennis-vector-logo-ping-pong-ball-with-emblem-shape-perfect-table-tennis_297778-950.jpg" alt="logo" width="60px">
+  <div class="buttons">
+   <button class="start-btn">Start</button>
+   <button class="pause-btn">Pause</button>
+   <button class="restart-btn">Restart</button>
+  </div>
+ </div>
+
+ <div class="pong-wrapper">
+  <canvas id="ping-pong" width="600px" height="400px"></canvas>
+ </div>
+</body>
+</html>
diff --git a/public/ping/script.js b/public/ping/script.js
@@ -0,0 +1,230 @@
+const canvas = document.querySelector("#ping-pong");
+
+const context = canvas.getContext("2d");
+
+const startBtn = document.querySelector(".start-btn");
+
+const pauseBtn = document.querySelector(".pause-btn");
+
+const restartBtn = document.querySelector(".restart-btn");
+
+let gameRunning = false;
+
+let animationId;
+
+//CREATE USER PADDLE
+const user = {
+ x: 0,
+ y: canvas.height/2 - 100/2,
+ width: 10,
+ height: 100,
+ color: "red",
+ score: 0
+}
+
+//CREATE COMPUTER PADDLE
+const computer = {
+ x: canvas.width - 10,
+ y: canvas.height/2 - 100/2,
+ width: 10,
+ height: 100,
+ color: "black",
+ score: 0
+}
+
+//CREATE THE BALL
+const ball = {
+ x: canvas.width / 2,
+ y: canvas.height / 2,
+ radius: 10,
+ speed: 10,
+ velocityX: 5,
+ velocityY: 5,
+ color: "white"
+}
+
+//CREATE THE NET
+const net = {
+ x: canvas.width/2 - 1,
+ y: 0,
+ width: 2,
+ height: 10,
+ color: "white"
+}
+
+restartBtn.addEventListener("click", () => {
+ document.location.reload();
+});
+
+addEventListener("load", (event) => {
+ render();
+});
+
+//DRAW NET FUNCTION
+function drawNet() {
+    const netWidth = 4; // Adjust the net width as needed
+    const netSpacing = 15; // Adjust the spacing as needed
+
+    // Draw the left half of the net
+    for (let i = 0; i <= canvas.height; i += netSpacing) {
+        drawRectangle(net.x, net.y + i, netWidth, net.height, net.color);
+    }
+
+    // Draw the right half of the net
+    for (let i = 0; i <= canvas.height; i += netSpacing) {
+        drawRectangle(net.x + net.width - netWidth, net.y + i, netWidth, net.height, net.color);
+    }
+}
+
+
+//DRAW RECTANGLE FUNCTION
+function drawRectangle(x, y, w, h, color) {
+ context.fillStyle = color;
+ context.fillRect(x, y, w, h);
+}
+
+//DRAW CIRCLE FUNCTION
+function drawCircle(x, y, r, color) {
+ context.fillStyle = color;
+ context.beginPath();
+ context.arc(x, y, r, 0, Math.PI * 2, false);
+ context.closePath();
+ context.fill();
+}
+
+//DRAW TEXT FUNCTION
+function drawText(text, x, y, color) {
+ context.fillStyle = color;
+ context.font = "45px fantasy";
+ context.fillText(text, x, y);
+}
+
+//RENDER GAME FUNCTION
+// Inside the render() function
+function render() {
+    // CLEAR THE CANVAS
+    drawRectangle(0, 0, canvas.width, canvas.height, "green");
+
+    // DRAW THE NET
+    drawNet();
+
+    // DRAW THE SCORE
+    drawText(user.score, canvas.width / 4, canvas.height / 5, "white");
+    drawText(computer.score, (3 * canvas.width) / 4, canvas.height / 5, "white");
+
+    // DRAW THE USER AND COMPUTER PADDLES
+    drawRectangle(user.x, user.y, user.width, user.height, user.color);
+    drawRectangle(computer.x, computer.y, computer.width, computer.height, computer.color);
+
+    // DRAW THE BALL
+    drawCircle(ball.x, ball.y, ball.radius, ball.color);
+
+    // DRAW THE WHITE LINE IN THE MIDDLE
+    drawRectangle(net.x, net.y, net.width, canvas.height, net.color);
+}
+
+//CONTROL USERS PADDLE
+canvas.addEventListener("mousemove", movePaddle);
+
+function movePaddle(evt) {
+ let rectangle = canvas.getBoundingClientRect();
+
+ user.y = evt.clientY - rectangle.top - user.height/2;
+}
+
+//COLLISION DETECTION FUNCTION
+function collision(b, p) {
+ b.top = b.y - b.radius;
+ b.bottom = b.y + b.radius;
+ b.left = b.x - b.radius;
+ b.right = b.x + b.radius;
+
+ p.top = p.y;
+ p.bottom = p.y + p.height;
+ p.left = p.x;
+ p.right = p.x + p.width;
+
+ return b.right > p.left && b.bottom > p.top && b.left < p.right && b.top < p.bottom; 
+}
+
+//RESET BALL FUNCTION
+function resetBall() {
+ ball.x = canvas.width / 2;
+ ball.y = canvas.height / 2;
+
+ ball.speed = 5;
+ ball.velocityX = -ball.velocityX;
+}
+
+//UPDATE FUNCTION
+function update() {
+ ball.x += ball.velocityX;
+ ball.y += ball.velocityY;
+
+ //SIMPLE AI TO CONTROL THE COMPUTER PADDLE
+ let computerLevel = 0.1;
+ computer.y += (ball.y - (computer.y + computer.height/2)) * computerLevel;
+
+ if(ball.y + ball.radius > canvas.height || ball.y - ball.radius < 0) {
+  ball.velocityY = -ball.velocityY;
+ }
+
+ let player = (ball.x < canvas.width/2) ? user : computer;
+
+ if(collision(ball, player)) {
+  //WHERE THE BALL HIT THE PLAYER
+  let collidePoint = ball.y - (player.y + player.height/2);
+
+  //NORMALIZATION
+  collidePoint = collidePoint / (player.height/2);
+
+  //CALCULATE THE ANGLE IN RADIAN
+  let angleRad = collidePoint * Math.PI/4;
+
+  //X DIRECTION OF THE BALL WHEN IT'S HIT
+  let direction = (ball.x < canvas.width/2) ? 1 : -1;
+
+
+  //CHANGE VELOCITY OF X AND Y
+  ball.velocityX = direction * ball.speed * Math.cos(angleRad);
+
+  ball.velocityY = ball.speed * Math.sin(angleRad);
+
+  //Everytime a ball is hit by a paddle, we increase its speed
+  ball.speed += 0.5;
+ }
+ //UPDATE THE SCORE
+ if(ball.x - ball.radius < 0) {
+  //THE COMPUTER GAINS 1 POINT
+  computer.score++;
+  resetBall();
+ } else if(ball.x + ball.radius > canvas.width){
+  //THE USER GAINS 1 POINT
+  user.score++;
+  resetBall();
+ }
+}
+
+//GAME INITIALIZATION FUNCTION
+function animate() {
+    if(!gameRunning) {
+        return; // Don't continue the animation if it's paused
+    }
+
+    update();
+    render();
+    animationId = requestAnimationFrame(animate);
+}
+
+
+startBtn.addEventListener("click", () => {
+    if (!gameRunning) {
+        gameRunning = true;
+        animate();
+    }
+});
+
+pauseBtn.addEventListener("click", () => {
+    gameRunning = false;
+    cancelAnimationFrame(animationId);
+});
diff --git a/public/ping/style.css b/public/ping/style.css
@@ -0,0 +1,70 @@
+*{
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+   }
+
+   body{
+    background-color: darkgrey;
+   }
+
+   .header {
+    display: flex;
+    align-items: center;
+    justify-content: space-around;
+    padding: 0.1em;
+    margin-top: 0.1em;
+    background-color: green;
+   }
+
+   .header img {
+    width: 60px;
+   }
+
+   .buttons button {
+    letter-spacing: 2px;
+    text-transform: uppercase;
+    border: none;
+    color: white;
+    background-color: green;
+    padding: 10px;
+    letter-spacing: 1px;
+    font-size: 1em;
+    font-weight: bold;
+    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
+   }
+
+   .buttons button:hover {
+    text-decoration: underline;
+    font-size: 1.05em;
+   }
+
+   .pong-wrapper {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    margin-top: 3em;
+   }
+
+   #ping-pong {
+    width: 80%;
+    max-width: 680px;
+    border: 12px solid white;
+   }
+
+   @media screen and (max-width: 480px) {
+    .header img {
+     width: 40px;
+    }
+    .buttons button {
+     letter-spacing: 1px;
+     padding: 5px;
+     letter-spacing: 1px;
+     font-size: 0.7em;
+    }
+
+    .buttons button:hover {
+     text-decoration: underline;
+     font-size: 1.05em;
+    }
+   }