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game.html
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<!DOCTYPE html>
<html>
<head>
<title>ASTEROIDS: D GAME</title>
<meta name="viewport" content= "width=device-width, user-scalable=no">
<style>
body {
margin: 0;
background-color: black;
overflow: hidden;
}
* {
margin: 0;
padding: 0;
max-width: 100%;
max-height: 100%;
}
#myCanvas {
border: 1px solid black;
margin: auto;
display: block;
background-color: black;
}
#player
{
background-color: red;
width: 20px;
height: 20px;
}
#game-over-box
{
width: 500px;
height: 200px;
background-color: red;
}
</style>
</head>
<body>
<canvas height="3000" width="3000" id="myCanvas" style="background: url('https://images.pexels.com/photos/998641/pexels-photo-998641.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260'); background-size:100%;">
Your browser does not support the HTML canvas tag.
</canvas>
<!-- <script src="script.js" type="module"></script> -->
<script>
//alert(window.localStorage.getItem('token'));
let starttime = new Date().getTime();
//
//
// ███████╗███╗ ██╗███████╗███╗ ███╗██╗ ██╗
// ██╔════╝████╗ ██║██╔════╝████╗ ████║╚██╗ ██╔╝
// █████╗ ██╔██╗ ██║█████╗ ██╔████╔██║ ╚████╔╝
// ██╔══╝ ██║╚██╗██║██╔══╝ ██║╚██╔╝██║ ╚██╔╝
// ███████╗██║ ╚████║███████╗██║ ╚═╝ ██║ ██║
// ╚══════╝╚═╝ ╚═══╝╚══════╝╚═╝ ╚═╝ ╚═╝
//
//
function Enemy(ctx, width, height) {
let books = [
"https://i.imgur.com/zpj7c0U.png",
"https://i.imgur.com/yhTDBBA.png",
"https://i.imgur.com/NgIs9DX.png",
"https://i.imgur.com/McKdpwy.png",
"https://i.imgur.com/Mmw8XHB.png",
"https://i.imgur.com/qFq8NBX.png",
"https://i.imgur.com/nwoEA6B.png",
"https://i.imgur.com/QeY18rc.png",
"https://i.imgur.com/syNYQ8G.png",
"https://i.imgur.com/6UAsl22.png",
"https://i.imgur.com/kmxH5Pz.png",
"https://i.imgur.com/5kKhdZt.png",
"https://i.imgur.com/Z7SPN6N.png"
]
let index = Math.floor(Math.random() * 13); // ------------------------------------- not dynamic
this.x;
this.y;
this.radius = 50;
this.width = 50;
this.height = 75;
// delta x and y, the x and y pixels that the enemy should move
this.dx = 1;
this.dy = 1;
this.velocity = 2;
this.img = new Image();
this.src = books[index];
this.img.src = this.src
this.pickLocation = () => {
var rnd = Math.floor(Math.random() * 4);
switch (rnd) {
case 0:
this.x = 0;
this.y = Math.random() * height;
break;
case 1:
this.x = width;
this.y = Math.random() * height;
break;
case 2:
this.x = Math.random() * width;
this.y = 0;
break;
case 3:
this.x = Math.random() * width;
this.y = height;
break;
}
//this.x = Math.floor(this.x) - this.radius / 2;
//this.y = Math.floor(this.y) - this.radius / 2;
//console.log("Spawned enemy at", this.x, this.y);
}
this.getAngle = (xBase, yBase, xTarget, yTarget) => {
const x = xTarget - xBase;
const y = yTarget - yBase;
const angle = Math.atan2(x / y);
return Math.atan2(x, y);
}
this.pickDirection = () => {
var angle = this.getAngle(this.x, this.y, width/2, height/2);
this.dx = Math.sin(angle);
this.dy = Math.cos(angle);
}
this.draw = () =>
{
ctx.drawImage(
this.img,
this.x - this.radius / 2,
this.y - this.radius / 2,
this.width,
this.height
);
}
this.move = () =>
{
this.x += this.dx * this.velocity;
this.y += this.dy * this.velocity;
}
this.getLocation = () =>
{
return {
"x": this.x,
"y": this.y
}
}
this.inBounds = () => {
return !(
this.x < -this.radius / 2 ||
this.x > width ||
this.y < -this.radius / 2 ||
this.y > height
);
}
this.pickLocation();
this.pickDirection();
this.draw();
}
//
//
// ██████╗ ██╗ █████╗ ██╗ ██╗███████╗██████╗
// ██╔══██╗██║ ██╔══██╗╚██╗ ██╔╝██╔════╝██╔══██╗
// ██████╔╝██║ ███████║ ╚████╔╝ █████╗ ██████╔╝
// ██╔═══╝ ██║ ██╔══██║ ╚██╔╝ ██╔══╝ ██╔══██╗
// ██║ ███████╗██║ ██║ ██║ ███████╗██║ ██║
// ╚═╝ ╚══════╝╚═╝ ╚═╝ ╚═╝ ╚══════╝╚═╝ ╚═╝
//
//
function Player(ctx, width, height, program) {
/*
pacman - IP
gustav - D
kirby - U
barbapappa - IT
*/
var kattenGustaf = "https://i.imgur.com/GwmZAnQ.png";
var blueKirby = "https://i.imgur.com/A8oPTRw.png";
var barbapappa = "https://i.imgur.com/3caGSsP.png";
//var pacman = "https://i.imgur.com/qyqNEvr.png";
var pacman = "https://i.imgur.com/SpIQoR5.png"
this.width = width;
this.height = height;
this.mouse = {
x: 0,
y: 0,
};
this.radius = 75;
this.program = program;
this.getImage = (program) => {
switch (program) {
case "D":
return kattenGustaf;
case "U":
return blueKirby;
case "IT":
return barbapappa;
case "IP":
return pacman;
}
};
this.getProgram = () => {
return this.program
};
this.getAngle = (xBase, yBase, xTarget, yTarget) => {
const x = xTarget - xBase;
const y = yTarget - yBase;
const angle = Math.atan2(x / y);
return Math.atan2(x, y);
};
this.getPlayer = () => {
let angle = this.getAngle(
width / 2,
height / 2,
this.mouse.x,
this.mouse.y
);
return angle;
}
this.draw = () => {
ctx.save();
ctx.fillStyle = "blue";
ctx.translate(width / 2, height / 2);
const img = new Image();
img.src = this.getImage(this.program);
ctx.rotate(-this.getPlayer() + Math.PI);
ctx.drawImage(
img,
-this.radius / 2,
-this.radius / 2,
this.radius,
this.radius
);
ctx.restore();
};
this.setMouse = (mousePos) => {
this.mouse = {
x: mousePos.x,
y: mousePos.y,
};
};
this.update = () => {};
}
//
//
// ██████╗ ██╗ ██╗██╗ ██╗ ███████╗████████╗
// ██╔══██╗██║ ██║██║ ██║ ██╔════╝╚══██╔══╝
// ██████╔╝██║ ██║██║ ██║ █████╗ ██║
// ██╔══██╗██║ ██║██║ ██║ ██╔══╝ ██║
// ██████╔╝╚██████╔╝███████╗███████╗███████╗ ██║
// ╚═════╝ ╚═════╝ ╚══════╝╚══════╝╚══════╝ ╚═╝
//
//
function Bullet(ctx, width, height, angle, program) {
this.x = width / 2;
this.y = height / 2;
this.radius = 10;
this.color = "#20407C"//"#FF0000"
/*
D: #754022
IT: #E5398D
U: #20407C
IP: #70BD44
*/
switch (program) {
case "D":
this.color = "#ad7539";
//this.color = "#a17d5a";
//this.color = "#754022";
break;
case "U":
this.color = "#509cbf";
//this.color = "#20407C";
break;
case "IT":
this.color = "#E5398D";
break;
case "IP":
this.color = "#70BD44";
break;
}
this.velocity = 10;
this.dx = Math.sin(angle);
this.dy = Math.cos(angle);
this.draw = () => {
ctx.beginPath();
ctx.arc(this.x, this.y, this.radius, 0, 2 * Math.PI, false);
ctx.fillStyle = this.color;
ctx.fill();
}
this.inBounds = () => {
return !(
this.x < -this.radius / 2 ||
this.x > width ||
this.y < -this.radius / 2 ||
this.y > height
);
}
this.checkCollision = (enemy) => {
return this.x - this.radius/2 <= enemy.x + enemy.width/2 &&
this.x + this.radius/2 > enemy.x - enemy.width/2 &&
this.y - this.radius/2 <= enemy.y + enemy.height/2 &&
this.y + this.radius/2 > enemy.y - enemy.height/2;
}
this.move = () => {
this.x += this.dx * this.velocity
this.y += this.dy * this.velocity
}
}
//
//
// ███████╗ ██████╗ ██████╗ ██╗ ██████╗ ████████╗ ██╗███████╗
// ██╔════╝ ██╔════╝ ██╔══██╗ ██║ ██╔══██╗╚══██╔══╝ ██║██╔════╝
// ███████╗ ██║ ██████╔╝ ██║ ██████╔╝ ██║ ██║███████╗
// ╚════██║ ██║ ██╔══██╗ ██║ ██╔═══╝ ██║ ██ ██║╚════██║
// ███████║ ╚██████╗ ██║ ██║ ██║ ██║ ██║ ██╗╚█████╔╝███████║
// ╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚════╝ ╚══════╝
//
//
const width = window.innerWidth;
const height = window.innerHeight;
let smallest = Math.min(width, height);
let score = 0;
let scoreColor = "white";
let gameStarted = false;
let gameOver = false;
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
let centerY;
let centerX;
const scale = 0.9;
const isMobile = detectMob();
let enemyInterval = 600;
let baseEnemyInterval = enemyInterval;
let intervalCount = 0;
// timers
let enemyTimer;
let gameTimer;
// import { Enemy } from './enemy.js';
// import { Player } from './player.js';
// import { Bullet } from './bullet.js'
canvas.width = width;
canvas.height = height;
centerY = height / 2;
centerX = width / 2;
var player;
var enemies = [];
var bullets = [];
function getMousePos(canvas, evt) {
let rect = canvas.getBoundingClientRect();
return {
x: evt.clientX - rect.left,
y: evt.clientY - rect.top
};
}
const configureEvents = () => {
canvas.addEventListener("mousedown", (e) => {
if (!gameStarted) {
let mouse = getMousePos(canvas, e);
logoButtons.forEach(button => {
let lengthToButton = Math.sqrt(Math.pow(mouse.x - button.x, 2) + Math.pow(mouse.y - button.y, 2));
if(lengthToButton < button.length / 2) {
console.log(button.avatar);
startGame(button.avatar)
}
});
}
else if (gameOver) {
let mouse = getMousePos(canvas, e)
}
else if (bullets.length < 5) {
let angle = player.getPlayer();
let program = player.getProgram();
let bullet = new Bullet(ctx, canvas.width, canvas.height, angle, program);
bullets.push(bullet);
}
});
canvas.addEventListener("mousemove", (e) => {
if (player) {
player.setMouse(getMousePos(canvas, e));
}
});
}
function detectMob() {
const toMatch = [
/Android/i,
/webOS/i,
/iPhone/i,
/iPad/i,
/iPod/i,
/BlackBerry/i,
/Windows Phone/i
];
return toMatch.some((toMatchItem) => {
return navigator.userAgent.match(toMatchItem);
});
}
const drawScore = () => {
ctx.font = "30px Arial";
ctx.fillStyle = scoreColor;
ctx.fillText("Högskolepoäng: " + score, 10, 30);
};
const spawnEnemy = () => {
let enemy = new Enemy(ctx, canvas.width, canvas.height);
enemies.push(enemy);
}
const spawnEnemies = () => {
let enemiesToSpawn = 1;
if(score % 10 == 0 && score > 0) {
enemiesToSpawn = 2;
}
for(var i = 0; i < enemiesToSpawn; i++){
spawnEnemy()
}
// enemyInterval = baseEnemyInterval * (Math.pow(0.92, score));
enemyInterval = baseEnemyInterval - 1 * intervalCount;
intervalCount++;
// enemyInterval = baseEnemyInterval
if(!gameOver){
enemyTimer = setTimeout(spawnEnemies, enemyInterval);
}
}
let logoButtons = [
{
avatar: "D",
src_: "imgs/D.png",
srco: "https://i.imgur.com/A5E4OwT.png",
src: "https://i.postimg.cc/P5f0pLBL/D.png"
},
{
avatar: "U",
src_: "imgs/U.png",
srco: "https://i.imgur.com/T9w96bm.png",
src: "https://i.postimg.cc/3wVqctWp/U.png"
},
{
avatar: "IT",
src_: "imgs/IT.png",
srco: "https://i.imgur.com/0At8WuJ.png",
src: "https://i.postimg.cc/Qd6wp83f/IT.png"
},
{
avatar: "IP",
src_: "imgs/IP.png",
srcp: "https://i.imgur.com/OIBqavH.png",
//src: "https://i.postimg.cc/ZqCgHGY4/IP.png"
src: "https://i.postimg.cc/kXwqG6gq/IP.png"
},
];
const createMenu = () => {
drawCenteredText("CHOOSE YOUR FIGHTER", "90px Impact", "red");
for (let i = 0; i < logoButtons.length; i++) {
var x_diff = width / 10;
var y_diff = height / 10;
var x;
var y;
switch(i){
case 0:
x = 3*x_diff;
y = 3*y_diff;
break;
case 1:
x = 7*x_diff
y = 3*y_diff
break;
case 2:
x = 3*x_diff;
y = 7*y_diff;
break;
case 3:
x = 7*x_diff
y = 7*y_diff
break;
}
logoButtons[i].x = x;
logoButtons[i].y = y;
logoButtons[i].length = Math.min(width / 5, height / 5) * 1.4;
x = x - logoButtons[i].length / 2;
y = y - logoButtons[i].length / 2;
logoButtons[i].img = new Image();
logoButtons[i].img.src = logoButtons[i].src;
// in order to access coords and width/height in onload-triggered draw function below
logoButtons[i].img.length = logoButtons[i].length;
logoButtons[i].img.drawx = x;
logoButtons[i].img.drawy = y;
logoButtons[i].img.onload = function() {
ctx.drawImage(this, this.drawx, this.drawy, this.length, this.length);
}
}
}
const preGame = () => {
createMenu();
configureEvents();
}
const startGame = (program) => {
gameStarted = true;
spawnEnemies();
drawScore();
player = new Player(ctx, canvas.width, canvas.height, program);
gameTimer = setInterval(updateGame, 20);
}
console.log({centerX}, {centerY})
const stopGame = () => {
/*
fetch('/')
.then(response => response.json());
*/
bullets = [];
enemies = [];
clearInterval(gameTimer);
clearTimeout(enemyTimer);
player.draw();
drawScore();
drawCenteredText("GAME OVER", "90px Impact", "red")
drawCenteredText(`Du fick ${score} hp`, "100px Impact", "lime", 1.3)
setTimeout(() => { window.location.replace("index.html") }, 4000);
};
/*
var txt = "Hello World";
ctx.fillText("width:" + ctx.measureText(txt).width, 10, 50);
ctx.fillText(txt, 10, 100);
*/
const updateGame = () => {
// Clear canvas before drawing all objects
ctx.clearRect(0, 0, canvas.width, canvas.height);
// For each enemy:
// move, draw, check for player collision, check if outside bounds
for (var i = enemies.length - 1; i >= 0; i--) {
let enemy = enemies[i];
enemy.move();
enemy.draw();
if (!enemy.inBounds()) {
enemies.splice(i, 1);
}
if (playerCollision(enemy)) {
gameOver = true;
}
}
if (gameOver) {
stopGame();
return;
}
// For each bullet:
// move, draw, check for enemy collision, check if outside bounds
for (var i = bullets.length - 1; i >= 0; i--) {
var bullet = bullets[i];
var hitTarget = false;
bullet.move();
bullet.draw();
for (var j = enemies.length - 1; j >= 0; j--) {
if (bullet.checkCollision(enemies[j])) {
score++;
console.log({ score }, { enemyInterval });
enemies.splice(j, 1);
hitTarget = true;
break;
}
}
if (!bullet.inBounds() || hitTarget) {
bullets.splice(i, 1);
}
}
//remove dead (??)
// Draw player
player.draw();
// Draw score
drawScore();
};
const playerCollision = (enemy) =>
{
let playerX = canvas.width/2;
let playerY = canvas.height/2;
/*
console.log("============================")
console.log(playerX)
console.log(enemy.x)
console.log(enemy.radius)
console.log(enemy.radius/2)
console.log(Math.abs(playerX - (enemy.x + enemy.radius/2)) < 10)
*/
return ((Math.abs(playerX - (enemy.x + enemy.radius*0)) < enemy.radius*1) &&
(Math.abs(playerY - (enemy.y + enemy.radius*0)) < enemy.radius*1));
}
preGame();
function drawCenteredText(txt, font, color, yFactor = 1) {
ctx.font = font;
ctx.fillStyle = color;
let len = ctx.measureText(txt).width;
let typeface = ctx.font.slice(ctx.font.indexOf("px"));
while (len > width) {
ctx.font = (ctx.font.slice(0, ctx.font.indexOf("px")) - 10) + typeface;
len = ctx.measureText(txt).width;
}
ctx.fillText(txt, centerX - len / 2, centerY * yFactor);
}
/**
*
* meny med knappar för att starta och stoppa spelet
*
**/
</script>
</body>
</html>