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i.htm
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<!doctype html>
<canvas id=d style="position:absolute;top:0"></canvas>
<canvas id=c style="position:absolute;top:0"></canvas>
<span id=t style="position:absolute;color:white; bottom:15px;font-family:monospace"></span>
<div id=matsI style="color:#fff;position:absolute;top:0"><i id=mats_1>▶</i><i id=mats_2>▷</i><i id=mats_3>▷</i><i id=mats_4>▷</i><i id=mats_5>▷</i><i id=matsL>1 x</i></div>
<div id=m style="position:absolute;text-align:center;color:#FFF;font-size:40px;top:40vh;width:100vw;font-family:monospace">Start</div>
<div id=j style="position:absolute;margin-left:10vw;color:#FFF;font-size:20px;top:40vh;width:80vw;font-family:monospace"></div>
<img src="i.png" hidden id=sprite>
<style>
body{margin:0}
</style>
<script>
missions = [
'soyouz'
]
PHYSIC_STEP = 10
POOL_SIZE = 400
mousePos = new v2d(0,0)
Number.prototype.m = function(n){return((this%n)+n)%n;}
var vPool=[]
for(var i = 0;i < POOL_SIZE; i++) {
vPool[i]={
speed : new v2d(0,0),
f : 0,
pos : new v2d()
}
}
function v2d(x,y) {
this.x = x
this.y = y
this.tmp = 1;//for buff & swap
}
v2d.prototype.setPoint = function(x,y) {
this.x = x
this.y = y
}
v2d.prototype.setVector = function(v) {
this.x = v.x
this.y = v.y
}
v2d.prototype.X = function(o){
this.x=this.x*o.x;
this.y=this.y*o.y;
}
v2d.prototype.normalize = function() {
this.tmp = this.x;
this.x = this.x / Math.hypot(this.x,this.y)
this.y = this.y / Math.hypot(this.tmp,this.y)
}
v2d.prototype.add = function(o){
this.x=this.x+o.x;
this.y=this.y+o.y;
}
v2d.prototype.sub = function(o){
this.x=this.x-o.x;
this.y=this.y-o.y;
}
v2d.prototype.scale = function(n){
this.x=this.x*n;this.y=this.y*n;
}
v2d.prototype.toString = function() {
return 'x:'+this.x+'|y:'+this.y
}
v2d.prototype.x = function() {
return this.x
}
v2d.prototype.y = function() {
return this.y
}
v2d.prototype.stance = function(o) {
return Math.sqrt(
(this.y-o.y)*(this.y-o.y)+
(this.x-o.x)*(this.x-o.x)
)
}
v2d.prototype.norm = function() {
return Math.hypot(this.x,this.y)
}
oldDate = new Date();
nz = 4
sun = {pos : new v2d(0,0), stance: 0, name : 'sun', G : 440000, color : "#ffffff", diameter : 10000}
stars = []
starsU = []
sky = {
pos : new v2d(0,0)
}
g = function(x,player,planets){
mats = 1
logs = []
function log(m) {
logs.push({date : new Date(), m})
}
cpu = {
remaining : 0,
glitchCharge : 0,
precision : 30,
}
land = function(planet, choc) {
j.innerHTML = "<h1 color='red'>Successfull landed on " + player.attratedBy.name + "</h1>" +
logs.map(function(l){
return "at " +l.date.getTime() + " " + l.m
}).join('<br>')
state = 3
}
displayCrash = function () {
j.innerHTML = "<h1 color='red'>Rocket is lost</h1>" +
logs.map(function(l){
return "at " +l.date.getTime() + " " + l.m
}).join('<br>')
state = 3
}
displayMission = function() {
state = 0
}
state = 0;
tools = {
mouse : new v2d(0,0),
cam : new v2d(0,0),
screen : new v2d(c.width/2,c.height/2),
},
manover = {
nearPoint : null,
minStance : 0,
stance : 0,
origin : new v2d(0,0),
deltaV : new v2d(0,0),
state : 0,
fixedPoint : new v2d(0,0),
initialDeltaV : new v2d(0,0)
},
player = {
fuel : 100000,
alt: 0,
gravity : {
normamizedGravity : new v2d(0,0),
moveVector : new v2d(0,0)
},
trajectory : {
apo : new v2d(0,0),
peri : new v2d(0,0),
stanceCurrent : new v2d(0,0),
posCurrent : new v2d(0,0),
normamizedGravity : new v2d(0,0),
pos : new v2d(0,0),
speed : new v2d(0,0),
acc : new v2d(0,0),
force : 0,
forceCurrent : 0,
attratedBy : sun,
attratedByCurrent : sun,
futurePlanetStance : new v2d(0,0),
moveVector : new v2d(0,0)
},
pdv : new v2d(0,0),
pdvs : "",
pos : new v2d(200,200),
heading:-Math.PI/2,
agility:Math.PI/45,
speed : new v2d(0,0),
acc : new v2d(0,0),
right:false,
M:1000,
mass : 1,
left:false,
thrustUp:false,
linkedTo:null,
attratedBy:null,
stages:[
{isOn:false, power:1.3, isCurrent:true}
],
thrustDown:false,
thrust : 0,
drawSky : function (context) {
if(player.alt > 1500) return
player.alt = this.pos.stance(this.attratedBy.pos) - this.attratedBy.diameter
grd = context.createLinearGradient(150.000, 0.000, 150.000, 300.000);
var atmoAlpha = player.alt < 1 ? 1 : 1 - player.alt / 1500
// Add colors
grd.addColorStop(0.000, `rgba(17, 65, 117, ${atmoAlpha})`);
grd.addColorStop(1.000, `rgba(255, 141, 66, ${atmoAlpha})`);
context.fillStyle = grd
context.fillRect(0,0,c.width,c.height)
},
move : function(delta){
//landed
if(player.linkedTo){
player.pos.setPoint(player.linkedTo.pos.x,player.linkedTo.pos.y-player.linkedTo.diameter-104)
} else {
//collide
planets.forEach(function(planet){
if(player.pos.stance(planet.pos) < planet.diameter + 104) {
// collide
// go get energy !
var choc = player.speed.norm() // approx energy
if(choc >= 10) {
log("Collide with " + planet.name + " | velocity " + choc + "m/s")
displayCrash()
} else {
land()
}
}
})
//gravity well
sun.stance = sun.pos.stance(player.pos)
g = sun.G / (sun.stance * sun.stance)
player.attratedBy = sun
planets.forEach(function(planet) {
planet.stance = planet.pos.stance(player.pos)
if((planet.G / (planet.stance * planet.stance)) > g) {
g = planet.G / (planet.stance * planet.stance)
player.attratedBy = planet
}
})
player.gravity.normamizedGravity.setVector(player.attratedBy.pos)
player.gravity.normamizedGravity.sub(player.pos)
player.gravity.normamizedGravity.normalize()
player.gravity.normamizedGravity.scale(g)
//atmoshperic
//engine
player.fuel -= player.thrust * delta
// document.title = "fuel : "+player.fuel
if(player.stages[0].isOn && player.fuel > 0) {
player.acc.setPoint(Math.cos(player.heading)*player.stages[0].power*player.thrust / 10,
Math.sin(player.heading)*player.stages[0].power*player.thrust / 10)
}
player.acc.add(player.gravity.normamizedGravity)
player.acc.scale(delta)
player.speed.add(player.acc)
player.gravity.moveVector.setVector(player.speed)
player.gravity.moveVector.scale(delta)
//player.gravity.moveVector.scale(0.16)
player.pos.add(player.gravity.moveVector)
}
},
link : function(o) {
player.linkedTo = o
player.attratedBy = o
player.pos.x = o.pos.x
player.pos.y = o.pos.y+(o.diameter/2)
},
stage : function() {
player.stages[0].isOn = true
console.log("Start engine")
player.linkedTo = false
player.speed.setPoint(0,0)
log("Take off")
},
draw : function(x) {
player.pdvs = ''
if(manover.state != 0) {
player.pdv.setVector(player.speed)
player.pdv.sub(manover.initialDeltaV)
player.pdvs = "|dv : " + Math.round(player.pdv .norm())
}
t.innerHTML = player.pdvs + "<br>|speed : " + Math.round(player.speed.norm()) + "<br>|alt : " + Math.round(player.alt)
if(nz < 1) {
x.drawImage(sprite, 111,183,50,50, c.width/2-25,c.height/2-25,50, 50)
return;
}
//x.beginPath();
x.save()
x.translate((c.width/2+z(player.pos.x- camera.pos.x)) ,(c.height/2+z(player.pos.y - camera.pos.y)))
x.rotate(player.heading+Math.PI/2)
x.drawImage(sprite, 174,74,50,208, z(-25),z(-104),z(50), z(208))
x.fillStyle = "rgba(250,250,250,0.3)"
x.restore()
var relativeSpeed = new v2d(player.speed.x,player.speed.y)
}
}
player.toString = function() {
return 'pos:'+player.pos.toString()+'|heading:'+player.heading+'|thrust:'+player.thrust
}
player.controll=function(delta){
if(player.thrustUp&&!player.thrustDown) player.thrust = player.thrust >= 1 ? 1 : player.thrust+0.025
if(player.thrustDown&&!player.thrustUp) player.thrust = player.thrust <= 0 ? 0 : player.thrust-0.025
if(player.stages[0].isOn) {
if(player.left&&!player.right) player.heading = player.heading-player.agility
if(player.right&&!player.left) player.heading = player.heading+player.agility
}
if(player.thrust!=0 || player.left || player.right) {
mats = 1
}
}
function computeGravity(futureObect,futureTime) {
player.trajectory.stance = player.trajectory.attratedBy.pos.stance(futureObect)
player.trajectory.force = player.trajectory.attratedBy.G / (player.trajectory.stance * player.trajectory.stance)
planets.forEach(function(planet) {
var stanceZ = planet.getFuturePosition(futureTime).stance(futureObect)
var forceZ = planet.G / (stanceZ * stanceZ)
if(player.trajectory.force < forceZ) {
player.trajectory.force = forceZ
player.trajectory.attratedBy = planet
}
})
stanceZ = futureObect.stance(sun.pos)
forceZ = sun.G / (stanceZ * stanceZ)
if(player.trajectory.force < forceZ) {
player.trajectory.force = forceZ
player.trajectory.attratedBy = sun
}
//return player.future.planet
}
function trajectory(context,deltaT,deltaV,nearPoint) {
deltaT *= mats
if(nearPoint) {
context.fillRect(c.width/2+z(nearPoint.x-camera.pos.x+4),c.height/2+z(nearPoint.y-camera.pos.y-5),8,8)
player.trajectory.pos.setVector(nearPoint)
player.trajectory.speed.setVector(deltaV)
} else {
player.trajectory.pos.setVector(player.pos)
player.trajectory.speed.setVector(player.speed)
}
player.trajectory.attratedByCurrent = player.attratedBy
var step = 100
var breakFlag = false
for(var i=0;i<POOL_SIZE;i++) {
if(breakFlag) {
break;
}
// new acc
player.trajectory.acc.setVector(player.acc)
computeGravity(player.trajectory.pos, i*deltaT)
player.trajectory.normamizedGravity.setVector(player.trajectory.attratedBy.pos)
player.trajectory.normamizedGravity.sub(player.trajectory.pos)
player.trajectory.normamizedGravity.normalize()
player.trajectory.normamizedGravity.scale(deltaT)
player.trajectory.normamizedGravity.scale(player.trajectory.force)
player.trajectory.speed.add(player.trajectory.normamizedGravity)
// console.log(planet)
player.trajectory.moveVector.setVector(player.trajectory.speed)
//player.trajectory.moveVector.scale(16)
player.trajectory.moveVector.scale(deltaT)
player.trajectory.pos.add(player.trajectory.moveVector)
// for apo / peri
vPool[i].pos.setVector(player.trajectory.pos)
vPool[i].force = player.trajectory.force
vPool[i].speed.setVector(player.trajectory.speed)
var dist = Math.hypot(player.pos.x-player.trajectory.pos.x, player.pos.y-player.trajectory.pos.y)
if(dist < 100 && dist != 0) {
// detect loop
//breakFlag = true
}
planets.forEach(function(planet){
if(player.trajectory.pos.stance(planet.pos) < planet.diameter / 2) {
// collide
// go get energy !
if(i > PHYSIC_STEP) {
breakFlag = true
}
}
})
// update color of trajectory if influence change
context.fillStyle = "#78CBFF"//player.attratedBy.color
if(player.trajectory.attratedByCurrent != player.trajectory.attratedBy) {
player.trajectory.attratedByCurrent = player.trajectory.attratedBy
context.fillStyle = player.trajectory.attratedBy.color
}
if(nearPoint) {
context.fillStyle = 'red'
}
context.fillRect(c.width/2+z(player.trajectory.pos.x-camera.pos.x+4),c.height/2+z(player.trajectory.pos.y-camera.pos.y-5),2,2)
}
player.trajectory.apo = vPool[0].pos
player.trajectory.peri = vPool[0].pos
vPool.forEach(function(vp) {
if(player.trajectory.apo.tmp > vp.tmp) {
player.trajectory.apo = vp.pos
}
if(player.trajectory.peri.tmp < vp.tmp) {
player.trajectory.peri = vp.pos
}
})
// get apo and peri
context.fillStyle = "#FFFFFF"
context.moveTo(c.width/2+z(player.trajectory.peri.x-camera.pos.x+4),c.height/2+z(player.trajectory.peri.y-camera.pos.y-5))
context.beginPath()
context.moveTo(c.width/2+z(player.trajectory.peri.x-camera.pos.x+4) - 3,c.height/2+z(player.trajectory.peri.y-camera.pos.y-5))
context.moveTo(c.width/2+z(player.trajectory.peri.x-camera.pos.x+4) + 3,c.height/2+z(player.trajectory.peri.y-camera.pos.y-5))
context.moveTo(c.width/2+z(player.trajectory.peri.x-camera.pos.x+4),c.height/2+z(player.trajectory.peri.y-camera.pos.y-5)-6)
context.closePath()
context.fill()
context.moveTo(c.width/2+z(player.trajectory.apo.x-camera.pos.x+4),c.height/2+z(player.trajectory.apo.y-camera.pos.y-5))
context.beginPath()
context.moveTo(c.width/2+z(player.trajectory.apo.x-camera.pos.x+4) - 3,c.height/2+z(player.trajectory.apo.y-camera.pos.y-5))
context.moveTo(c.width/2+z(player.trajectory.apo.x-camera.pos.x+4) + 3,c.height/2+z(player.trajectory.apo.y-camera.pos.y-5))
context.moveTo(c.width/2+z(player.trajectory.apo.x-camera.pos.x+4),c.height/2+z(player.trajectory.apo.y-camera.pos.y-5)+6)
context.closePath()
}
function navBall(context){
var a1 = new v2d(player.attratedBy.pos.x, player.attratedBy.pos.y)
a1.sub(player.pos)
var sheepH = Math.atan2(a1.y,a1.x) + Math.PI
h = (player.heading - sheepH).m(2*Math.PI) / (Math.PI * 2) * 200
//h += 25
//h = h.m(100)
context.save()
context.rect(c.width/2 - 50,c.height - 100,100,100)
context.clip()
context.fillStyle = "#61C7FA"
context.fillRect(c.width/2 - 50,c.height - h - 100,100,100)
context.fillRect(c.width/2 - 50,c.height - h +100,100,100)
context.fillStyle = "#6DDE70"
context.fillRect(c.width/2 - 50,c.height - h,100,100)
//context.fillRect(c.width/2 - 50,c.height - h - 150,100,50)
//center
context.fillStyle = "#FFE659"
context.fillRect(c.width/2 - 50,c.height - 50,30,3)
context.fillRect(c.width/2 + 20,c.height - 50,30,3)
var playerAccHeading = Math.atan2(player.speed.y,player.speed.x)
var r = player.heading - playerAccHeading + Math.PI / 2
context.fillStyle = "#FFFFFF"
r = r.m(2*Math.PI) / (Math.PI * 2) * 200
context.drawImage(sprite, 43,132,15,15,c.width/2-8,c.height - r - 8,15,15)
context.drawImage(sprite, 73,132,15,15,c.width/2-8,c.height - (r + 100 - 8).m(200),15,15)
//context.fillRect(c.width/2-5,c.height - r,10,10)
context.fillStyle = "#FF0000"
// context.fillRect(c.width/2-5,c.height - (r + 100).m(200),10,10)
context.fillStyle = "#ffffff"
for(var i = 0;i<20;i++){
// trace angle
context.fillRect(c.width/2 - 5,c.height - (20 * i) - h + 200,10,1)
context.fillRect(c.width/2 - 2,c.height - (20 * i + 10) - h + 200,4,1)
}
if(manover.state != 0) {
var playerManoverHeading = Math.atan2(manover.deltaV.y,manover.deltaV.x)
var d = player.heading - playerManoverHeading + Math.PI / 2
context.fillStyle = "#C390D4"
d = d.m(2*Math.PI) / (Math.PI * 2) * 200
context.drawImage(sprite, 103,132,15,15,c.width/2-8,c.height - d - 8,15,15)
}
context.restore()
// power
context.save()
context.rect(c.width/2 - 100,c.height - 100,8,100)
context.clip()
context.fillStyle = "#e3e3e3"
context.fillRect(c.width/2 - 100,c.height - 100,8,100)
context.fillStyle = "#131517"
context.fillRect(c.width/2 - 100,c.height - player.thrust * 100,8,100)
context.restore()
if(player.stages[0].isOn) {
context.fillStyle = "#2BC417"
} else {
context.fillStyle = "#0A5411"
}
context.beginPath()
context.arc(c.width/2 - 96,c.height - 110,4,0,Math.PI*2)
context.closePath()
context.fill()
}
matsI.onclick = function(e) {
if(state != 1) return
var selected = parseInt(e.target.id.split('_')[1])
for(var i=1; i <= 5; i++) {
document.getElementById(`mats_${i}`).innerHTML = i <= selected ? '▶' :'▷'
}
switch(selected) {
case 1:
mats = 1
break
case 2:
mats = 2
break
default:
mats = Math.pow(10,selected-2)
}
matsL.innerHTML = `${mats} x`
return false
e.preventDefault()
}
document.onmousedown = function(e) {
if(manover.state == 0 && state == 1) {
manover.state = 1
}
if(manover.state == 3 && state == 1) {
manover.state = 0
}
}
document.onmouseup = function() {
if(manover.state == 2) {
manover.state = 3
}
}
function mouseToSpace() {
tools.screen = new v2d(c.width/2,c.height/2)
tools.mouse.setVector(mousePos)
tools.mouse.sub(tools.screen)
tools.cam.setVector(camera.pos)
tools.mouse.scale((1/nz)*10)
tools.cam.add(tools.mouse)
}
function drawManover(context,deltaT) {
if(manover.state==1) {
//get neareast point on trajectory
mouseToSpace()
//vMouse.sub(vCam)
// vMouse.sub(vCam)
manover.nearPoint = vPool[0]
manover.minStance = vPool[0].pos.stance(tools.mouse)
vPool.forEach(function(vp) {
manover.stance = vp.pos.stance(tools.cam)
if(manover.minStance > manover.stance) {
manover.minStance = manover.stance
manover.nearPoint = vp
manover.origin.setVector(mousePos)
}
})
manover.state = 2
} else if(manover.state==2) {
context.moveTo(c.width/2+z(manover.nearPoint.pos.x-camera.pos.x+4),c.height/2+z(manover.nearPoint.pos.y-camera.pos.y-5))
context.arc(c.width/2+z(manover.nearPoint.pos.x-camera.pos.x+4),c.height/2+z(manover.nearPoint.pos.y-camera.pos.y-5),4,0,7)
context.fillStyle = "white"
context.fill()
context.strokeStyle = "white"
context.lineTo(mousePos.x,mousePos.y)
context.stroke()
manover.deltaV.setVector(mousePos)
manover.deltaV.sub(manover.origin)
//manover.deltaV.sub(manover.nearPoint.speed)
manover.fixedPoint.setVector(manover.nearPoint.pos)
manover.initialDeltaV.setVector(manover.nearPoint.speed)
trajectory(context,deltaT,manover.deltaV, manover.nearPoint.pos)
} else if(manover.state==3) {
trajectory(context,deltaT,manover.deltaV, manover.fixedPoint)
//draw alternateManover
}
}
document.onkeydown=function(k) {
if(k.keyCode==38 || k.keyCode==90){ /*up&z*/
player.thrustUp = true//player.thrust>=100 ? 100 : player.thrust++
}
if(k.keyCode==40 || k.keyCode==83){ /*down&s*/
player.thrustDown = true//player.thrust<=0 ? 0 : player.thrust-
player.thrustDown = true//player.thrust<=0 ? 0 : player.thrust-
}
if(k.keyCode==37 || k.keyCode==81){ /*left&q*/
player.left = true;
}
if(k.keyCode==39 || k.keyCode==68){ /*right&d*/
player.right = true
}
// zoom on o & p
if(k.keyCode == 34) {
nz = nz <= 0 ? 0 : nz / 2
}
if(k.keyCode == 33) {
nz = nz >= 1000 ? 1000 : nz * 2
}
if(k.keyCode == 32) {
if(!player.stages[0].isOn)
player.stage()
}
if(state == 1 && k.keyCode == 80) {
pause()
state = 4//PAUSE
} else if(state == 4 && k.keyCode == 80) {
state = 1
unpause()
}
}
document.scroll = function(e) {
var d = e.wheelDelta
console.log(d )
}
document.onmousemove = function(e) {
mousePos.x = e.clientX
mousePos.y = e.clientY
}
document.onkeyup=function(k) {
if(k.keyCode==38 || k.keyCode==90){ /*up&z*/
player.thrustUp = false
}
if(k.keyCode==40 || k.keyCode==83){ /*down&s*/
player.thrustDown = false
}
if(k.keyCode==37 || k.keyCode==81){ /*left&q*/
player.left = false;
}
if(k.keyCode==39 || k.keyCode==68){ /*right&d*/
player.right = false
}
}
x=c.getContext('2d')
x2=d.getContext('2d')
d.width=c.width=innerWidth-8;d.height=c.height=innerHeight-8
planets=[]
camera = player
planets[0]=new Planet(0.000,3800,null,40000,0,0,200000, 'blue', '#0000FF')
planets[1]=new Planet(0.000,3250,null,116000,0,0,80000, 'red', '#FF0000')
player.link(planets[0])
prepareStar()
var timer = new Date()
//constant time for move
function m(){
var timer = new Date()
delta = PHYSIC_STEP
delta *= mats
if(state==1) { // game
player.controll(delta)
player.move(delta)
planets.forEach(function(planet) {
planet.move(delta)
})
}
timer = new Date() - timer
//document.title = timer
}
setInterval(m,PHYSIC_STEP)
function l(){
c.width^=0
if(state==1) { // game
drawUnstableStars(x)
player.drawSky(x)
planets.forEach(function(planet) {
planet.draw(x)
})
drawSun(x)
player.draw(x)
navBall(x)
trajectory(x,delta)
drawManover(x,delta)
}
requestAnimationFrame(l)
}
drawStars(x2)
l()
}
/*
Planet
s self rotate speed
S rotate speed
d diameter
ox origin x
oy origin y
r ressources
D distance from origin
*/
m.onclick = start
j.onclick = stop
function start() {
m.style.display = "none"
state = 1
}
function stop() {
j.style.display = "none"
state = 1;
}
function pause() {
m.style.display = "inline"
m.innerHTML = "Paused"
}
function unpause() {
m.style.display = "none"
m.innerHTML = ""
}
function Planet(speed,diameter,parent,distanceMinFromParent,distanceMaxFromParent,angle,G,name, color){
this.speed=speed
this.shadowPos=new v2d(0,0)
this.stance = 0
this.color = color
this.G = G
this.distanceMaxFromParent = distanceMaxFromParent
this.distanceMinFromParent = distanceMinFromParent
this.diameter=diameter
this.angle=angle
this.pos=new v2d(Math.cos(this.angle)*this.distanceMinFromParent,Math.sin(this.angle)*this.distanceMinFromParent)
this.name=name
}
Planet.prototype.getSpeedVector = function() {
}
Planet.prototype.toString=function(){
return this.name,'|speed:'+this.speed.toString()+'|pos:'+this.pos.toString()
}
Planet.prototype.drawSimple = function(context) {
if(this.name === 'blue') {
context.drawImage(sprite, 168,20,40,40,c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),40,40)
} else {
context.drawImage(sprite, 30,79,40,40,c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),40,40)
}
}
Planet.prototype.draw=function(context){
if(nz < 0.04) {
this.drawSimple(context)
} else {
context.beginPath()
//c.width/2+player.pos.x - camera.pos.x,c.height/2+player.pos.y - camera.pos.y
context.arc(c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),z(this.diameter),0,7)
var skyDrg=context.createRadialGradient(c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),10,c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),z(this.diameter));
if(this.name === 'blue') {
var skyDrg=context.createRadialGradient(c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),10,c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),z(this.diameter));
skyDrg.addColorStop(0.000, 'rgba(63, 172, 255, 1.000)');
skyDrg.addColorStop(0.370, 'rgba(56, 145, 255, 1.000)');
skyDrg.addColorStop(1.000, 'rgba(114, 195, 249, 1.000)');
} else {
var skyDrg=context.createLinearGradient(0, c.height/2+z(this.pos.y - camera.pos.y - this.diameter/2), 0, c.height /2+z(this.pos.y - camera.pos.y + this.diameter/2));
// Add colors
skyDrg.addColorStop(0.000, 'rgba(153, 52, 18, 1.000)');
skyDrg.addColorStop(0.151, 'rgba(219, 76, 19, 1.000)');
skyDrg.addColorStop(0.168, 'rgba(191, 36, 36, 1.000)');
skyDrg.addColorStop(0.348, 'rgba(114, 55, 25, 1.000)');
skyDrg.addColorStop(0.372, 'rgba(255, 0, 0, 1.000)');
skyDrg.addColorStop(0.536, 'rgba(142, 61, 21, 1.000)');
skyDrg.addColorStop(0.564, 'rgba(216, 107, 17, 1.000)');
skyDrg.addColorStop(0.724, 'rgba(255, 84, 0, 1.000)');
skyDrg.addColorStop(0.737, 'rgba(237, 70, 4, 1.000)');
skyDrg.addColorStop(0.877, 'rgba(191, 88, 28, 1.000)');
skyDrg.addColorStop(0.888, 'rgba(206, 44, 12, 1.000)');
skyDrg.addColorStop(1.000, 'rgba(175, 97, 24, 1.000)');
}
context.fillStyle = skyDrg;
context.fill()
context.closePath()
//orbit
context.beginPath()
context.arc(c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),z(this.diameter),0,7)
// TODO sure ? context.strokeStyle = '#2A2D2E'
context.closePath()
var shadowGrd = context.createLinearGradient(c.width/2+z(this.pos.x - camera.pos.x - this.diameter/2), 0, c.width/2+z(this.pos.x - camera.pos.x + this.diameter/2), 0);
// Add colors
shadowGrd.addColorStop(0.000, 'rgba(0, 0, 0, 0.400)');
shadowGrd.addColorStop(0.352, 'rgba(0, 0, 0, 0.400)');
shadowGrd.addColorStop(0.652, 'rgba(0, 0, 0, 0.000)');
shadowGrd.addColorStop(1.000, 'rgba(0, 0, 0, 0.000)');
context.fillStyle = shadowGrd;
// dark
context.beginPath()
context.arc(c.width/2+z(this.pos.x - camera.pos.x),c.height/2+z(this.pos.y - camera.pos.y),z(this.diameter),0,7)
//context.fillStyle = "#333";
context.closePath()
context.fill()
}
}
Planet.prototype.move=function(delta){
this.angle = this.angle+delta*this.speed/100
this.pos.x=Math.cos(this.angle)*this.distanceMinFromParent
this.pos.y=Math.sin(this.angle)*this.distanceMinFromParent
this.shadowPos.setPoint(
Math.cos(this.angle)*(this.distanceMinFromParent-this.diameter),
Math.sin(this.angle)*(this.distanceMinFromParent-this.diameter))
}
Planet.prototype. getFuturePosition=function(delta){
var angle = this.angle+delta*this.speed/100
return new v2d(Math.cos(angle)*this.distanceMinFromParent,Math.sin(angle)*this.distanceMinFromParent)
}
function drawSun(x) {
if(nz < 0.04) {
x.drawImage(sprite, 60,180,40,40,c.width/2 - z(camera.pos.x),c.height/2 - z(camera.pos.y),40,40)
} else {
x.beginPath()
var skyDrg=x.createRadialGradient(sky.pos.x,sky.pos.y,10,sky.pos.x,sky.pos.y,z(sun.diameter));
skyDrg.addColorStop(0.000, 'rgba(255, 255, 255, 1.000)');
skyDrg.addColorStop(0.236, 'rgba(255, 224, 132, 1.000)');
skyDrg.addColorStop(0.488, 'rgba(234, 189, 12, 1.000)');
skyDrg.addColorStop(0.735, 'rgba(255, 120, 17, 1.000)');
skyDrg.addColorStop(0.994, 'rgba(255, 131, 73, 1.000)');
skyDrg.addColorStop(1.000, 'rgba(255, 255, 255, 0.95)');
// Fill with gradient
x.fillStyle=skyDrg;
x.arc(c.width/2-z(camera.pos.x),c.height/2-z(camera.pos.y),z(sun.diameter),0,7)
x.fill()
x.closePath()
}
}
function z(d){
return (nz*d)/10
}
function drawSky() {
}
function drawStars(context2) {
context2.fillStyle = "rgb(18, 17, 28)"
context2.fillRect(0,0,c.width,c.height)
for(si in stars) {
s = stars[si]
context2.moveTo(s.pos.x,s.pos.y)
//context2.moveTo(s.pos.x,s.pos.y)
context2.fillStyle = '#aaaaaa'
context2.arc(s.pos.x,s.pos.y, s.intensity,0,7)
context2.fill()
}
}
function prepareStar() {
for(var i=0;i<111;i+=1){
stars.push({pos : new v2d(Math.floor(Math.random()*c.width), Math.floor(Math.random() * c.height)),intensity:Math.random()*0.9+0.4})
}
var colors = [
"#1B57C4", "#BC6DED", "#E63C58", "#ffffff", "#1B57C4"
]
for(var i = 0;i<10; i+=1) {
starsU.push({pos : new v2d(Math.random() * c.width,Math.random() * c.height), color : colors[Math.floor(Math.random()*5)],intensity: Math.random()*0.9})
}