particle engine 2 - starShip

[NiñoScript]

and another entry by NiñoScript, Hooray! (-:

CONTROLS:

_root._ymouse = affects the speed of the spaceShip;

Key.SPACE = creates a hi gravity point in the middle of the universe (aka blackhole), atracting the stars to it, but in this fake world, stars can scape that atraction after some fighting.[/size]


i hope you like it :love:



edit:
it looks weird when i see it in my browser, maybe becouse of the "noScale", dunno... if u want it to look like it should, just make a new document in flash and paste my code :)

another edit:
ok, i removed the "noScale" to add it to the forum, now it works ok :snug:

[NiñoScript]

Stage.scaleMode = "noScale";
//1
//{speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50}
starArray = [{speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50}];
//2
function drawStar(p) {
_root.change({func:"moveTo", value:[p.p.x-p.old.x*2, p.p.y-p.old.y*2]}).change({func:"lineTo", value:[p.p.x, p.p.y]});
//3
}
Object.prototype.change = function(what:Object, who) {
/*
.change({property:"", value:})
or
.change({func:"", value:[]})
*/
what.func == undefined ? this[what.property]=what.value : this[what.func](what.value[0], what.value[1]);
//4
return !who ? this : who;
//5
};
function moveStar(p, i) {
p.speed.change({property:"x", value:p.speed.x+Math.cos(Math.atan2(p.y-Stage.height/2, p.x-Stage.width/2))*speed/100}).change({property:"y", value:p.speed.y+Math.sin(Math.atan2(p.y-Stage.height/2, p.x-Stage.width/2))*speed/100}, p).change({property:"oldx", value:p.x}).change({property:"oldy", value:p.y}).change({property:"x", value:p.x>Stage.width+20 or p.x<-20 ? starArray[i]={speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50} : p.x+p.speed.x}).change({property:"y", value:p.y>Stage.height+20 or p.y<-20 ? starArray[i]={speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50} : p.y+p.speed.y});
//6
return {old:{x:p.x-p.oldx, y:p.y-p.oldy}, p:p};
//7
}
onEnterFrame = function () {
speed = Key.isDown(Key.SPACE) ? -150 : _ymouse;
//8
starArray.length<30 ? starArray.push({speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50}) : null;
//9
_root.change({func:"clear", value:null}).change({func:"lineStyle", value:[0]});
for (var i = 0; i<starArray.length; i++) {
//10
drawStar(moveStar(starArray[i], i));
//11
}
};

[hybrid101]

i'm definitely liking this! nice one, ninoscript!

[Seb Hughes]

nifty

[NiñoScript]

now it reacts to the FPS, and the number of lines hasn't changed :hugegrin:

that means that in each computer, the number of stars will adapt so the FramesPerSecond dont go down from 36 app :azn:



var fps = {variable:0, fps:100, constant:36, starArray:[{speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50}]};
//1
function drawStar(p) {
_root.change({func:"moveTo", value:[p.p.x-p.old.x*2, p.p.y-p.old.y*2]}).change({func:"lineTo", value:[p.p.x, p.p.y]});
//2
}
Object.prototype.change = function(what:Object, who) {
/*
.change({property:"", value:})
or
.change({func:"", value:[]})
*/
what.func == undefined ? this[what.property]=what.value : this[what.func](what.value[0], what.value[1]);
//3
return !who ? this : who;
//4
};
function moveStar(p, i) {
p.speed.change({property:"x", value:p.speed.x+Math.cos(Math.atan2(p.y-Stage.height/2, p.x-Stage.width/2))*speed/100}).change({property:"y", value:p.speed.y+Math.sin(Math.atan2(p.y-Stage.height/2, p.x-Stage.width/2))*speed/100}, p).change({property:"oldx", value:p.x}).change({property:"oldy", value:p.y}).change({property:"x", value:p.x>Stage.width+20 or p.x<-20 ? (fps.fps<fps.constant*2/3 ? (fps.starArray.splice(i, 1), fps.fps += 2) : (fps.starArray[i]={speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50})) : p.x+p.speed.x}).change({property:"y", value:p.y>Stage.height+20 or p.y<-20 ? (fps.fps<fps.constant*2/3 ? (fps.starArray.splice(i, 1), fps.fps += 2) : (fps.starArray[i]={speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50})) : p.y+p.speed.y});
//5
return {old:{x:p.x-p.oldx, y:p.y-p.oldy}, p:p};
//6
}
onEnterFrame = function () {
fps.fps>fps.constant ? fps.starArray.push({speed:{x:0, y:0}, x:Stage.width/2-random(100)+50, y:Stage.height/2-random(100)+50}) : null;
//7
fps.change({property:"variable", value:fps.variable+1}, _root).change({property:"speed", value:Key.isDown(Key.SPACE) ? -150 : _ymouse}).change({func:"clear", value:null}).change({func:"lineStyle", value:[0]});
//8
for (var i = 0; i<fps.starArray.length; i++) {
//9
drawStar(moveStar(fps.starArray[i], i));
//10
}
};
setInterval(function () {
fps.change({property:"fps", value:fps.variable}).change({property:"variable", value:0});
//11
}, 1000);
//12?

(-:

[Sinister Shadow]

Nice! :thumb2:

[Deril]

Mines looks better..

http://www.kirupa.com/forum/showthread.php?t=205315

;)

we used similar concept..

:sigh:

[NiñoScript]

im a copycat, :lol:

but, only mine makes you feel like if you were goin' fast :)

edit: only mine has a black hole in the middle of the universe too :P

[Deril]

bah..

its all for fun for me anywhay.. :)

do your best and good luck..!

[gvozden]

this two have nothing in common
one is profesional
but why do you have so many vertical and horizontal lines on upper and right edge of SWF file?

[NiñoScript]

why do you have so many vertical and horizontal lines on upper and right edge of SWF file?

i don't know... that's a bug :P

this two have nothing in common
one is profesional
which one? :h:

[033126B]

wow... nice one.. i dont even know how to use prototype! can some one teach me!!!???

[NiñoScript]

of course, i can :)
just pm me

[NiñoScript]

this two have nothing in common
one is profesional
but why do you have so many vertical and horizontal lines on upper and right edge of SWF file?

btw... almost 2 years later, i still would like to know which one is the proffesional one :sigh: