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Gravity Simulation Game #2355

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Jul 13, 2024
Merged

Gravity Simulation Game #2355

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32 changes: 32 additions & 0 deletions Gravity Simulation Game/index.html
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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<link rel="stylesheet" href="style.css">
</head>
<body >
<h1>Enjoy Gravity ! </h1>
<h3>Select a Celestial Body from below </h3>
<div id="dd">
<input type="radio" name="opt">Sun
<input type="radio" name="opt">Mercury
<input type="radio" name="opt">Venus
<input type="radio" name="opt">Earth
<input type="radio" name="opt" >Moon
<input type="radio" name="opt" >Mars
<input type="radio" name="opt">Jupiter
<input type="radio" name="opt">Saturn
<input type="radio" name="opt">Uranus
<input type="radio" name="opt">Neptune
<input type="radio" name="opt">Pluto
</div>
<br>
<button id="b">Click Here To Start !</button>
<br>
<button id="bt">Click Here To Stop Current Simulation !</button><br>
<button id="btn">Reset Canvas !</button>
<br><br>
<canvas></canvas>
<script src="script.js"></script>
</body>
</html>
18 changes: 18 additions & 0 deletions Gravity Simulation Game/manifest.json
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{
"manifest_version": 3,
"name": "Gravity Simulation",
"description": "Gravity Simulation Game",
"version": "1.0",
"permissions": [
"storage",
"declarativeNetRequest",
"declarativeNetRequestWithHostAccess",
"tabs"
],
"host_permissions": [
"*://*/*"
],
"action": {
"default_popup": "index.html"
}
}
153 changes: 153 additions & 0 deletions Gravity Simulation Game/script.js
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// Learn to code this at:
// https://www.youtube.com/watch?v=3b7FyIxWW94

// Initial Setup
document.getElementById('bt').addEventListener('click', function(){
location.reload();
})
document.getElementById('btn').addEventListener('click', function(){
location.reload();
})
document.getElementById('b').addEventListener('click', function(){
var canvas = document.querySelector('canvas');
var c = canvas.getContext('2d');

canvas.width = innerWidth;
canvas.height = innerHeight/2;


// Variables
var mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};

var colors = [
'rgb(235, 1, 40)',
'white',
'black',
'pink'
];

var gravity = 0.2;
var x = document.getElementsByName('opt');
var friction = 0.98;
if(x[0].checked)
gravity=27.4;
if(x[1].checked)
gravity=0.37;
if(x[2].checked)
gravity=0.89;
if(x[3].checked)
gravity=0.98;
if(x[4].checked)
gravity=0.162;
if(x[5].checked)
gravity=0.37;
if(x[6].checked)
gravity=2.31;
if(x[7].checked)
gravity=0.9;
if(x[8].checked)
gravity=0.87;
if(x[9].checked)
gravity=1.1;
if(x[10].checked)
gravity=0.07;

document.getElementById('dd').style.display='none';
addEventListener("mousemove", function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
});

addEventListener("resize", function() {
canvas.width = innerWidth;
canvas.height = innerHeight;
init();
});

addEventListener("click", function(event) {
init();
});


// Utility Functions
function randomIntFromRange(min,max) {
return Math.floor(Math.random() * (max - min + 1) + min);
}

function randomColor(colors) {
return colors[Math.floor(Math.random() * colors.length)];
}


// Objects
function Ball(x, y, dx, dy, radius, color) {
this.x = x;
this.y = y;
this.dx = dx;
this.dy = dy;
this.radius = radius;
this.color = color;

this.update = function() {
if (this.y + this.radius + this.dy> canvas.height) {
this.dy = -this.dy;
this.dy = this.dy * friction;
this.dx = this.dx * friction;
} else {
this.dy += gravity;
}

if (this.x + this.radius >= canvas.width || this.x - this.radius <= 0) {
this.dx = -this.dx * friction;
}

this.x += this.dx;
this.y += this.dy;
this.draw();
};

this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.stroke();
c.closePath();
};
}


// Implementation
var ballArray = [];

function init() {
ballArray = [];

for (let i = 0; i < 600; i++) {
var radius = randomIntFromRange(8, 20);
var x = randomIntFromRange(radius, canvas.width - radius);
var y = randomIntFromRange(0, canvas.height - radius);
var dx = randomIntFromRange(-3, 3)
var dy = randomIntFromRange(-2, 2)
ballArray.push(new Ball(x, y, dx, dy, radius, randomColor(colors)));
}
}

// Animation Loop
function animate() {
requestAnimationFrame(animate);

c.clearRect(0, 0, canvas.width, canvas.height);

for (let i = 0; i < ballArray.length; i++) {
ballArray[i].update();
}
}

init();
animate();
}
)
78 changes: 78 additions & 0 deletions Gravity Simulation Game/style.css
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/* body {
margin: 0;
overflow: hidden;
} */

@media only screen and (min-width: 600px) {
canvas{
margin: auto;
}
h1,h3{
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
text-align: center;
color: rgb(243, 63, 63);
}
#dd{
color: rgb(245, 53, 53);
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
font-size: 1em;
padding: 0px 260px;
}
input{
accent-color: rgb(240, 61, 91);
}


button{
display: block;
margin: auto;
margin-bottom: 0px;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
border: 2px solid rgb(235, 1, 40);
background-color: white;
cursor: pointer;
transition-duration: 0.5s;
}

button:hover{
background-color: rgb(236, 36, 36);
color: white;
}
}

@media only screen and (max-width: 600px) {
canvas{
margin: auto;
}
h1,h3{
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
text-align: center;
color: rgb(243, 63, 63);
}
#dd{
color: rgb(245, 53, 53);
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
font-size: 1em;
padding: 0px;
}
input{
accent-color: rgb(240, 61, 91);
}


button{
display: block;
margin: auto;
margin-bottom: 0px;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
border: 2px solid rgb(235, 1, 40);
background-color: white;
cursor: pointer;
transition-duration: 0.5s;
}

button:hover{
background-color: rgb(236, 36, 36);
color: white;
}
}
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