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app.js
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app.js
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var sunRadius = window.innerHeight/695500/2;
var scaleFactor = 1.0;
var earthMass = 0.00059721;
var earthScaleFactor = 150.0/(6367*sunRadius);
var marsScaleFactor = 150.0/(3386*sunRadius);
var jupiterScaleFactor = 150.0/(69173*sunRadius);
var saturnScaleFactor = 150.0/(57316*sunRadius);
var venusScaleFactor = 150.0/(6052*sunRadius);
var mercuryScaleFactor = 150.0/(2440*sunRadius);
var uranusScaleFactor = 150.0/(25266*sunRadius);
var neptuneScaleFactor = 150.0/(24533*sunRadius);
var startPoint = -(sunRadius*695500/10.0) + (sunRadius*695500) + (sunRadius*695500*0.1);
var maxPlanetAU = 29.97;
var minPlanetAU = 0.3076;
var orbitScale = ((window.innerWidth-(window.innerWidth/25))-startPoint)/(maxPlanetAU-minPlanetAU);
var asteroidStartX = startPoint + (orbitScale * (2.0-minPlanetAU));
var asteroids = [];
var currentPrompt = 0;
var prompts = [
"Grab a planet and see what happens.",
"Tip: Jupiter has a highest mass so it will pull smaller planets into it’s gravitational field.",
"A planet with a higher mass will have a higher gravitational pull.",
"99.86% of the solar system’s mass is found in the Sun",
"The temperature at the sun's core is about 27 million degrees Fahrenheit",
"Daytime temperatures on Mercury can reach 800 degrees Fahrenheit and drop to -290 degrees Fahrenheit at night.",
"Mercury makes a complete orbit around the sun in just 88 Earth days.",
"Venus' thick and toxic atmosphere is made up mostly of carbon dioxide (CO2) and nitrogen (N2), with clouds of sulfuric acid (H2SO4) droplets.",
"Mars has a thin atmosphere made up mostly of carbon dioxide (CO2), nitrogen (N2) and argon (Ar).",
"It is predicted that Jupiter has an inner, solid core about the size of the Earth.",
"Unlike any of the other planets, Uranus rotates on its side, which means it spins horizontally.",
"Uranus has an atmosphere which is mostly made up of hydrogen (H2) and helium (He), with a small amount of methane (CH4).",
"Neptune has six rings.",
"Neptune has 13 confirmed moon."
];
document.ontouchmove = function(event){
event.preventDefault();
}
$(document).ready(function(){
Physics(function (world) {
// bounds of the window
var viewportBounds = Physics.aabb(0, 0, window.innerWidth, window.innerHeight)
,edgeBounce
,renderer
;
// create a renderer
renderer = Physics.renderer('canvas', {
el: 'viewport',
autoResize: false
});
// add the renderer
world.add(renderer);
// render on each step
world.on('step', function () {
world.render();
});
// Sun
var sun = Physics.body('circle', {
x: -(sunRadius*695500/10.0)
,y: window.innerHeight/2
,vx: 0.0
,radius: sunRadius*695500
,mass:332949*earthMass
,restitution : 0.2
,styles: {
fillStyle: 'rgb(250,200,0)'
}
});
// Earth
var earth = Physics.body('circle', {
x: startPoint + (orbitScale * (1.0-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 6367*sunRadius*scaleFactor
,mass:earthMass
,styles: {
fillStyle: 'rgb(80,180,250)'
}
});
// Jupiter
var jupiter = Physics.body('circle', {
x: startPoint + (orbitScale * (5.354-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 69173*sunRadius*scaleFactor
,mass:317.83*earthMass
,restitution : 0.1
,styles: {
fillStyle: 'rgb(238,210,94)'
}
});
// Saturn
var saturn = Physics.body('circle', {
x: startPoint + (orbitScale * (9.973-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 57316*sunRadius*scaleFactor
,mass:95.1608*earthMass
,restitution: 0.1
,styles: {
fillStyle: 'rgb(180,95,48)'
}
});
// Uranus
var uranus = Physics.body('circle', {
x: startPoint + (orbitScale * (20.0-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 25266*sunRadius*scaleFactor
,mass:14.5357*earthMass
,restitution : 0.1
,styles: {
fillStyle: 'rgb(32,178,170)'
}
});
// Neptune
var neptune = Physics.body('circle', {
x: startPoint + (orbitScale * 29.6624)
,y: window.innerHeight/2
,vx: 0.0
,radius: 24533*sunRadius*scaleFactor
,mass:17.1478*earthMass
,restitution : 0.1
,styles: {
fillStyle: 'rgb(20,20,255)'
}
});
// Venus
var venus = Physics.body('circle', {
x: startPoint + (orbitScale * (0.7184-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 6052*sunRadius*scaleFactor
,mass:0.8149*earthMass
,styles: {
fillStyle: 'rgb(240,120,20)'
}
});
// Mars
var mars = Physics.body('circle', {
x: startPoint + (orbitScale * (1.48-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 3386*sunRadius*scaleFactor
,mass:0.1074*earthMass
,styles: {
fillStyle: 'rgb(200,40,40)'
}
});
// Mercury
var mercury = Physics.body('circle', {
x: startPoint
,y: window.innerHeight/2
,vx: 0.0
,radius: 2440*sunRadius*scaleFactor
,mass:0.0552*earthMass
,styles: {
fillStyle: 'rgb(159,78,11)'
}
});
addAsteroids();
world.add(mars);
world.add(mercury);
world.add(venus);
world.add(earth);
world.add(jupiter);
world.add(saturn);
world.add(uranus);
world.add(neptune);
world.add(sun);
updateScale(1.0);
// constrain objects to these bounds
edgeBounce = Physics.behavior('edge-collision-detection', {
aabb: viewportBounds
,restitution: 0.5
,cof: 0.8
});
updateBounds();
// resize events
window.addEventListener('resize', function () {
updateBounds();
}, true);
world.on({
'interact:grab': function( pos ){
$(".intro").fadeOut(1000);
$('#prompt').fadeOut(1000);
}
});
var gravity = Physics.behavior('newtonian');
// add things to the world
world.add([
Physics.behavior('interactive', { el: renderer.container})
,Physics.behavior('body-impulse-response')
,gravity
,edgeBounce
]);
world.add( Physics.behavior('body-collision-detection') );
world.add( Physics.behavior('sweep-prune') );
// subscribe to ticker to advance the simulation
Physics.util.ticker.on(function( time ) {
world.step( time );
});
function updateBounds(){
if (world.has(sun)) {
viewportBounds = Physics.aabb(-(sunRadius*695500*1.8), 0, window.innerWidth, window.innerHeight);
}
else{
viewportBounds = Physics.aabb(0, 0, window.innerWidth, window.innerHeight);
}
document.getElementById("viewport").width = window.innerWidth;
document.getElementById("viewport").height = window.innerHeight;
edgeBounce.setAABB(viewportBounds);
}
function updateScale(newScaleFactor, object){
var minT = 50;
var maxT = 0;
if (world.has(neptune)) {
if(29.97 < minT){
minT = 29.97;
}
if(29.97 > maxT){
maxT = 29.97;
}
}
if (world.has(uranus)) {
if(20 < minT){
minT = 20;
}
if(20 > maxT){
maxT = 20;
}
}
if (world.has(saturn)) {
if(9.973 < minT){
minT = 9.973;
}
if(9.973 > maxT){
maxT = 9.973;
}
}
if (world.has(jupiter)) {
if(5.354 < minT){
minT = 5.354;
}
if(5.354 > maxT){
maxT = 5.354;
}
}
if (world.has(mars)) {
if(1.48 < minT){
minT = 1.48;
}
if(1.48 > maxT){
maxT = 1.48;
}
}
if (world.has(earth)) {
if(1.0 < minT){
minT = 1.0;
}
if(1.0 > maxT){
maxT = 1.0;
}
}
if (world.has(venus)) {
if(0.7184 < minT){
minT = 0.7184;
}
if(0.7184 > maxT){
maxT = 0.7184;
}
}
if (world.has(mercury)) {
if(0.3067 < minT){
minT = 0.3067;
}
if(0.3067 > maxT){
maxT = 0.3067;
}
}
maxPlanetAU = maxT;
minPlanetAU = minT;
if (newScaleFactor == 1.0) {
earthMass = 0.00059721;
startPoint = -(sunRadius*695500/10.0) + (sunRadius*695500) + (sunRadius*695500*0.1);
}
else{
earthMass = 0.0059721*4;
startPoint = 10;
}
orbitScale = ((window.innerWidth-(window.innerWidth/25))-startPoint)/(maxPlanetAU-minPlanetAU);
asteroidStartX = startPoint + (orbitScale * (2.0-minPlanetAU));
if (asteroidStartX > window.innerWidth-30) {
asteroidStartX = window.innerWidth-30;
}
var rescale = true;
if (scaleFactor == newScaleFactor) {
// rescale = false;
}
scaleFactor = newScaleFactor;
if (world.has(asteroids[0])) {
removeAsteroids();
addAsteroids();
}
// Sun
if ((world.has(sun) && rescale == true) || (world.has(sun) && sun == object)) {
world.remove(sun);
sun = Physics.body('circle', {
x: -(sunRadius*695500/10.0)
,y: window.innerHeight/2
,vx: 0.0
,radius: sunRadius*695500
,mass:332949*earthMass
,restitution : 0.2
,styles: {
fillStyle: 'rgb(250,200,0)'
}
});
world.add(sun);
}
// Earth
if ((world.has(earth) && rescale == true) || (world.has(earth) && earth == object)) {
world.remove(earth);
earth = Physics.body('circle', {
x: startPoint + (orbitScale * (1.0-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 6367*sunRadius*scaleFactor
,mass:earthMass
,styles: {
fillStyle: 'rgb(80,180,250)'
}
});
world.add(earth);
}
// Jupiter
if ((world.has(jupiter) && rescale == true) || (world.has(jupiter) && jupiter == object)) {
world.remove(jupiter);
jupiter = Physics.body('circle', {
x: startPoint + (orbitScale * (5.354-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 69173*sunRadius*scaleFactor
,mass:317.83*earthMass
,restitution : 0.1
,styles: {
fillStyle: 'rgb(238,210,94)'
}
});
world.add(jupiter);
}
// Saturn
if ((world.has(saturn) && rescale == true) || (world.has(saturn) && saturn == object)) {
world.remove(saturn);
saturn = Physics.body('circle', {
x: startPoint + (orbitScale * (9.973-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 57316*sunRadius*scaleFactor
,mass:95.1608*earthMass
,restitution: 0.1
,styles: {
fillStyle: 'rgb(180,95,48)'
}
});
world.add(saturn);
}
// Uranus
if ((world.has(uranus) && rescale == true) || (world.has(uranus) && uranus == object)) {
world.remove(uranus);
uranus = Physics.body('circle', {
x: startPoint + (orbitScale * (20.0-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 25266*sunRadius*scaleFactor
,mass:14.5357*earthMass
,restitution : 0.1
,styles: {
fillStyle: 'rgb(32,178,170)'
}
});
world.add(uranus);
}
// Neptune
if ((world.has(neptune) && rescale == true) || (world.has(neptune) && neptune == object)) {
world.remove(neptune);
neptune = Physics.body('circle', {
x: startPoint + (orbitScale * 29.6624)
,y: window.innerHeight/2
,vx: 0.0
,radius: 24533*sunRadius*scaleFactor
,mass:17.1478*earthMass
,restitution : 0.1
,styles: {
fillStyle: 'rgb(20,20,255)'
}
});
world.add(neptune);
}
// Venus
if ((world.has(venus) && rescale == true) || (world.has(venus) && venus == object)) {
world.remove(venus);
venus = Physics.body('circle', {
x: startPoint + (orbitScale * (0.7184-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 6052*sunRadius*scaleFactor
,mass:0.8149*earthMass
,styles: {
fillStyle: 'rgb(240,120,20)'
}
});
world.add(venus);
}
// Mars
if ((world.has(mars) && rescale == true) || (world.has(mars) && mars == object)) {
world.remove(mars);
mars = Physics.body('circle', {
x: startPoint + (orbitScale * (1.48-minPlanetAU))
,y: window.innerHeight/2
,vx: 0.0
,radius: 3386*sunRadius*scaleFactor
,mass:0.1074*earthMass
,styles: {
fillStyle: 'rgb(200,40,40)'
}
});
world.add(mars);
}
// Mercury
if ((world.has(mercury) && rescale == true) || (world.has(mercury) && mercury == object)) {
world.remove(mercury);
mercury = Physics.body('circle', {
x: startPoint
,y: window.innerHeight/2
,vx: 0.0
,radius: 2440*sunRadius*scaleFactor
,mass:0.0552*earthMass
,styles: {
fillStyle: 'rgb(159,78,11)'
}
});
world.add(mercury);
}
}
function updateObject(object, newScaleFactor, newRadius){
var maxRadius = newRadius;
if (world.has(object)) {
world.remove(object);
maxRadius = 0;
}
else{
world.add(object);
}
var bodies = world.getBodies();
for(var i = 0; i < bodies.length; i++){
var body = bodies[i];
if(body.radius > maxRadius){
maxRadius = body.radius;
if(body == jupiter){
newScaleFactor = jupiterScaleFactor;
}
else if(body == earth){
newScaleFactor = earthScaleFactor;
}
else if(body == mars){
newScaleFactor = marsScaleFactor;
}
else if(body == saturn){
newScaleFactor = saturnScaleFactor;
}
else if(body == venus){
newScaleFactor = venusScaleFactor;
}
else if(body == neptune){
newScaleFactor = neptuneScaleFactor;
}
else if(body == uranus){
newScaleFactor = uranusScaleFactor;
}
else if(body == mercury){
newScaleFactor = mercuryScaleFactor;
}
else if(body == sun){
newScaleFactor = 1.0;
}
}
}
updateScale(newScaleFactor, object);
updateBounds();
}
document.getElementById('asteroid').addEventListener('click', function(ele) {
if (world.has(asteroids[0])) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
removeAsteroids();
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
addAsteroids();
if (world.has(gravity)) {
document.getElementById('gravity').click();
}
}
}, false);
document.getElementById('gravity').addEventListener('click', function(ele) {
if (world.has(gravity)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
world.removeBehavior(gravity);
// updateScale(scaleFactor);
// world.pause();
// world.unpause();
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
world.addBehavior(gravity);
// updateScale(scaleFactor);
// world.pause();
// world.unpause();
if (world.has(asteroids[0])) {
document.getElementById('asteroid').click();
}
}
}, false);
document.getElementById('mercury').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(mercury)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(mercury, mercuryScaleFactor, 2440*sunRadius*scaleFactor);
}, false);
document.getElementById('sun').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(sun)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(sun, 1.0, sunRadius*695500);
}, false);
document.getElementById('earth').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(earth)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(earth, earthScaleFactor, 6367*sunRadius*scaleFactor);
}, false);
document.getElementById('jupiter').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(jupiter)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(jupiter, jupiterScaleFactor, 69173*sunRadius*scaleFactor);
}, false);
document.getElementById('uranus').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(uranus)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(uranus, uranusScaleFactor, 25266*sunRadius*scaleFactor);
}, false);
document.getElementById('neptune').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(neptune)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(neptune, neptuneScaleFactor, 24533*sunRadius*scaleFactor);
}, false);
document.getElementById('saturn').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(saturn)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(saturn, saturnScaleFactor, 57316*sunRadius*scaleFactor);
}, false);
document.getElementById('mars').addEventListener('click', function(ele) {
$(".intro").fadeOut();
$('#prompt').fadeOut();
if (world.has(mars)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(mars, marsScaleFactor, 3386*sunRadius*scaleFactor);
}, false);
document.getElementById('venus').addEventListener('click', function(ele) {
$(".intro").fadeOut();
if (world.has(venus)) {
ele.target.style.backgroundColor = 'black';
ele.target.style.color = 'white';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'black');
$("#" + ele.target.id).css("color", 'white');
});
}
else{
ele.target.style.backgroundColor = 'white';
ele.target.style.color = 'black';
$("#" + ele.target.id).hover(function(){
$("#" + ele.target.id).css("background-color", 'rgba(255, 255, 255, 0.8)');
$("#" + ele.target.id).css("color", 'black');
}, function(){
$("#" + ele.target.id).css("background-color", 'white');
$("#" + ele.target.id).css("color", 'black');
});
}
updateObject(venus, venusScaleFactor, 6052*sunRadius*scaleFactor);
}, false);
document.getElementById('gravity').click();
$('#prompt').hide();
function removeAsteroids(){
world.remove(asteroids);
asteroids = [];
}
function addAsteroids(){
for(var i = 0; i < window.innerHeight; i += 10){
var asteroid = Physics.body('circle', {
x: asteroidStartX
,y: i
,vx: 0.0
,radius: 0.75
,mass:0.00003*earthMass
,styles: {
fillStyle: 'rgb(159,78,11)'
}
});
world.add(asteroid);
asteroids.push(asteroid);
}
for(var i = 5; i < window.innerHeight; i += 10){
var asteroid = Physics.body('circle', {
x: asteroidStartX+10
,y: i
,vx: 0.0
,radius: 0.75
,mass:0.00003*earthMass
,styles: {
fillStyle: 'rgb(159,78,11)'
}
});
world.add(asteroid);
asteroids.push(asteroid);
}
for(var i = 0; i < window.innerHeight; i += 10){
var asteroid = Physics.body('circle', {
x: asteroidStartX+20
,y: i
,vx: 0.0
,radius: 0.75
,mass:0.00003*earthMass
,styles: {
fillStyle: 'rgb(159,78,11)'
}
});
world.add(asteroid);
asteroids.push(asteroid);
}
for(var i = 5; i < window.innerHeight; i += 10){
var asteroid = Physics.body('circle', {
x: asteroidStartX+30
,y: i
,vx: 0.0
,radius: 0.75
,mass:0.00003*earthMass
,styles: {
fillStyle: 'rgb(159,78,11)'
}
});
world.add(asteroid);
asteroids.push(asteroid);
}
}
function hidePrompt(){
$('#prompt').fadeOut(1000);
}
function showPrompt(){
currentPrompt = (currentPrompt+1)%prompts.length;
var prompt = prompts[currentPrompt];
$('#prompt').html(prompt);
$('#prompt').fadeIn(1000);
setTimeout(hidePrompt, 10000);
}
// setInterval(showPrompt, 30000);