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game.html
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<html style="background-color: #100D23; width: 100%; text-align: center;">
<link href="https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap" rel="stylesheet">
<br/><br/>
<h1 style="color:#00FF9C; font-family:'Press Start 2P', cursive;">Cyberpunk Ping Pong Game VS AI</h1>
<br/><br/>
<canvas id="gameCanvas" width="800" height="600" style="display: inline;"></canvas>
<br/><br/>
<footer style="color:#00FF9C; font-family:'Press Start 2P', cursive;">by ><a href="https://github.com/zellyk" style="color:#00FF9C; text-decoration: none; font-family:'Press Start 2P', cursive;">Zellyk</a>< </footer>
<script>
// canvas where the game will be
var canvas;
var canvasContext;
//ball X axis adn Y axis
var ballX = 50;
var ballSpeedX = 12;
var ballY = 50;
var ballSpeedY = 5;
//players
var paddle1Y = 250;
var paddle2Y = 250;
// paddle height
const PADDLE_HEIGHT = 100;
const PADDLE_THICC = 10;
//score
var player1Score = 0;
var player2Score = 0;
const WINNING_SCORE = 3;
var showingWinScreen = true;
function calculateMousePos(evt) {
var rect = canvas.getBoundingClientRect();
var root = document.documentElement;
var mouseX = evt.clientX - rect.left - root.scrollLeft;
var mouseY = evt.clientY - rect.top - root.scrollTop;
return{
x:mouseX,
y:mouseY
};
}
function handleMouseclick(evt){
if(showingWinScreen){
player1Score = 0;
player2Score = 0;
showingWinScreen = false;
}
}
window.onload = function () {
canvas = document.getElementById('gameCanvas');
canvasContext = canvas.getContext('2d');
var framesPerSecond = 30;
setInterval(function () {
moveEverything();
drawEverything();
}, 1000 / framesPerSecond);
canvas.addEventListener('mousedown', handleMouseclick);
canvas.addEventListener('mousemove',
function(evt) {
var mousePos= calculateMousePos(evt);
paddle1Y = mousePos.y-(PADDLE_HEIGHT/2);
});
}
function ballReset(){
if(player1Score >= WINNING_SCORE || player2Score >= WINNING_SCORE){
showingWinScreen = true;
}
ballX = canvas.width/2;
ballY = canvas.height/2;
ballSpeedX = -ballSpeedX;
}
function computerMovement(){
var paddle2YCenter = paddle2Y + (PADDLE_HEIGHT/2);
if(paddle2YCenter < ballY - 35){
paddle2Y += 8;
}
else if(paddle2YCenter > ballY +35){
paddle2Y -= 8;
}
}
function moveEverything() {
if(showingWinScreen){
return;
}
computerMovement();
// what moves the ball
ballX += ballSpeedX;
ballY += ballSpeedY;
if(ballX < 0){
if(ballY > paddle1Y &&
ballY < paddle1Y+PADDLE_HEIGHT){
ballSpeedX = -ballSpeedX;
var deltaY = ballY -(paddle1Y+PADDLE_HEIGHT/2);
ballSpeedY = deltaY *0.35;
}
else{
player2Score++; // Must be before ballReset()
ballReset();
}}
if(ballX > canvas.width){
if(ballY > paddle2Y &&
ballY < paddle2Y+PADDLE_HEIGHT){
ballSpeedX = -ballSpeedX;
var deltaY = ballY -(paddle2Y+PADDLE_HEIGHT/2);
ballSpeedY = deltaY *0.35;
}
else{
player1Score++; // Must be before ballReset()
ballReset();
}}
if(ballY < 0){
ballSpeedY = -ballSpeedY;
}
if(ballY > canvas.height){
ballSpeedY = -ballSpeedY;
}
}
function drawNet(){
for(var i=0;i<canvas.height; i+=40)
colorRect(canvas.width/2-1,i,2,20,'#00FF9C');
}
function drawEverything() {
//background for game
colorRect(0, 0, canvas.width, canvas.height, '#372963');
if(showingWinScreen){
canvasContext.fillStyle = '#00FF9C';
if(player1Score >= WINNING_SCORE) {
canvasContext.fillText("Left Player Won!", 350, 200);
}
else if(player2Score >= WINNING_SCORE){
canvasContext.fillText("Right Player Won!", 350, 200);
}
canvasContext.fillText("Click to continue", 350, 500);
return;
}
//draw net
drawNet();
// left player
colorRect(0, paddle1Y, PADDLE_THICC, PADDLE_HEIGHT,'#c592ff');
// right player
colorRect(canvas.width-PADDLE_THICC, paddle2Y, PADDLE_THICC, PADDLE_HEIGHT,'#c592ff');
// ball starts in the middle '#FF4081'
colorCircle(ballX,ballY,10, '#FF4081');
canvasContext.fillStyle = '#00FF9C';
canvasContext.fillText(player1Score, 100, 100,);
canvasContext.fillText(player2Score, canvas.width-100, 100,);
}
function colorRect(leftX, topY, width, height, drawColor){
canvasContext.fillStyle = drawColor;
canvasContext.fillRect(leftX, topY, width, height);
}
function colorCircle(centerX, centerY, radius, drawColor){
canvasContext.fillStyle= drawColor;
canvasContext.beginPath();
canvasContext.arc(centerX, centerY, radius, 0,Math.PI*2, true);
canvasContext.fill();
}
</script>
</html>