Gerak Pertikel Bertabrakan - sumbu x - ActionScript 2.0 Flash

Saya ingin mencoba membuat program partikel bertabrakan

kira-kira seperti ini:

Huruf-huruf dianggap objek (movieclip)

Seperti ini programnya:

// fungsi gerak partikel
function gerak() {
this._x += this.dx;
this.xA = this._x-this.arah*this._width/2;
this.xB = this._x+this.arah*this._width/2;
}

// definisi awal dan mencari banyaknya partikel yang ada di layar (banyaknya movieclip "par")
nmax = 0;
do {
nmax++;
mc = this["par"+nmax];
} while (mc<>undefined);


// besar perpindahan dan menentukan arah
for (var i = 1; i<=nmax; i++) {
this["par"+i].besardx = Math.ceil(Math.random()*3)
this["par"+i].arah = -1+2*Math.floor(Math.random()*2)
}


// mengaktifkan gerak tiap partikel
for (var i = 1; i<=nmax; i++) {
this["par"+i].dx = this["par"+i].arah*this["par"+i].besardx;
this["par"+i].onEnterFrame = gerak;
}

// gerakan tiap partikel diaktifkan dengan onEnterFrame
this.onEnterFrame = function() {

for (var i = 1; i<=nmax; i++) {
for (var j = 1; j<=nmax; j++) {
mmc1 = this["par"+i];
mmc2 = this["par"+j];
if (i<>j) {
if (mmc1.xB>mmc2.xB && mmc1.xA<mmc2.xA && mmc1.arah<>mmc2.arah) {
SwapPropertiesA(mmc1,mmc2);
}

if (mmc1.xB>mmc2.xA && mmc1.xA<mmc2.xA && mmc1.arah == mmc2.arah && mmc1.besardx>mmc2.besardx) {
SwapPropertiesB(mmc1,mmc2);
}

if (mmc1.xB<mmc2.xA && mmc1.xA>mmc2.xA && mmc1.arah == mmc2.arah && mmc1.besardx>mmc2.besardx) {
SwapPropertiesB(mmc1,mmc2);
}

}
}
}
CekDinding()

};

function CekDinding() {
for (var i = 1; i<=nmax; i++) {
mcc1 = this["par"+i];
if(mcc1.xB>640){
DindingBx(mcc1)
}else if(mcc1.xB<0){
DindingAx(mcc1)
}
}

}

// dinding kiri
function DindingAx(mc1) {
nx = 0-mc1.xB;
mc1.arah = -mc1.arah;
mc1._x += nx;
mc1.dx = mc1.arah*mc1.besardx;
}

// dinding kanan
function DindingBx(mc1) {
nx = mc1.xB-Stage.width; // 640
mc1.arah = -mc1.arah;
mc1._x -= nx;
mc1.dx = mc1.arah*mc1.besardx;
}


// tumbukan tiap objek tipe 1
function SwapPropertiesA(mc1, mc2) {
// berlawanan arah
nx = mc1.xB-mc2.xB;

swapdx = mc1.besardx;
mc1.besardx = mc2.besardx;
mc2.besardx = swapdx;

swaparah = mc1.arah;
mc1.arah = mc2.arah;
mc2.arah = swaparah;

mc1._x -= nx;
mc2._x += nx;
mc1.dx = mc1.arah*mc1.besardx;
mc2.dx = mc2.arah*mc2.besardx;
}

// tumbukan tiap objek tipe 2
function SwapPropertiesB(mc1, mc2) {
// satu arah yang sama
nx = mc1.xB-mc2.xA;

swapdx = mc1.besardx;
mc1.besardx = mc2.besardx;
mc2.besardx = swapdx;

mc1._x -= nx;
mc2._x += nx;

mc1.dx = mc1.arah*mc1.besardx;
mc2.dx = mc2.arah*mc2.besardx;

}

Algoritma Luhn - untuk kartu kredit

def luhn_checksum(card_number):
    def digits_of(n):
        return [int(d) for d in str(n)]
    digits = digits_of(card_number)
    odd_digits = digits[-1::-2]
    even_digits = digits[-2::-2]
    checksum = 0
    checksum += sum(odd_digits)
    for d in even_digits:
        checksum += sum(digits_of(d*2))
    return checksum % 10
 
def is_luhn_valid(card_number):
    return luhn_checksum(card_number) == 0

sumber:
http://en.wikipedia.org/wiki/Luhn_algorithm

Game buatan Galih Widosamodra

Game saya ini dibuat dengan html5 dan javascript.
Silahkan mencoba:

1. Kartun Japarr
2. Tebak Karya Galih

Memang cukup lama saat membuka game ini.
Saya masih mencari cara supaya lebih cepat dan enteng untuk di buka di browser.

Mohon kritik dan saran dari teman-teman. Thanks
Maklum, masih belajar ... :)

Cara close window javascript-html5

Pengen buat program yang ada tombol close nya.
Akhirnya googling dulu ...
Alhamdulillah ketemu beberapa contoh yang bisa di pakai.

Berikut contoh-contoh program yang bisa dipakai untuk menutup window kita.

Cara 1:
window.open('', '_self', ''); //bug fix
window.close();

Cara 2:
window.open(...);
setTimeout(function(){
    window.open('', '_self', '');
    window.close();
}, 100);

Cara 3:
setTimeout(function() { window.close(); },50);

Cara 4:
top.window.close()


semoga bermanfaat :)

sumber:
http://stackoverflow.com/questions/2032640/problem-with-window-close-and-chrome

Window Debug Javascript - IE, Firefox, Chrome

Ada kalanya program html5 kita error, dan tak bisa berjalan sesuai yang kita ingikan.
Untuk itu, kita bisa menampilkan Window Debug Javascript di Browser.
Error di program kita pun bisa di deteksi.

Ini shortcut nya:
1. Chrome : Ctrl + Shift + J
2. Firefox  : Ctrl + Shift + J
3. IE         : F12


semoga bermanfaat :)

sumber:
http://stackoverflow.com/questions/9464545/debugging-firefox-extension-from-add-on-builder
http://stackoverflow.com/questions/66420/how-do-you-launch-the-javascript-debugger-in-google-chrome
https://developers.google.com/chrome-developer-tools/docs/javascript-debugging
http://stackoverflow.com/questions/10191099/debugging-javascript-in-ie

resize_canvas - setelah di modifikasi untuk Firefox

function resize_canvas(){
var t = getViewport();

innerWidth = t[0];//window.innerWidth;
innerHeight = t[1];//window.innerHeight;

sizeDiffW = innerWidth-canvasWidth;
sizeDiffH = innerHeight-canvasHeight;
chkscaleW = innerWidth/canvasWidth;
chkscaleH = innerHeight/canvasHeight;
scaleFix = Math.min(chkscaleW,chkscaleH);

canvas.width=canvasWidth*scaleFix;
canvas.height=canvasHeight*scaleFix;
context.scale(scaleFix, scaleFix);

canvas.style.left="100px";
canvas.style.top="100px";
canvas.style.marginLeft="100px";
canvas.style.marginTop="100px";


canvas.style.left=((innerWidth-canvasWidth*scaleFix)/2)+"px";
canvas.style.top=((innerHeight-canvasHeight*scaleFix)/2)+"px";

canvas.style.marginLeft=""+((innerWidth-canvasWidth*scaleFix)/2)+"px";
canvas.style.marginTop=""+((innerHeight-canvasHeight*scaleFix)/2)+"px";

}

getViewport - window.style.left - di Firefox

function getViewport() {
var viewPortWidth;
var viewPortHeight;

// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
if (typeof window.innerWidth != 'undefined') {
viewPortWidth = window.innerWidth,
viewPortHeight = window.innerHeight
}

// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
else if (typeof document.documentElement != 'undefined'
&& typeof document.documentElement.clientWidth !=
'undefined' && document.documentElement.clientWidth != 0) {
viewPortWidth = document.documentElement.clientWidth,
viewPortHeight = document.documentElement.clientHeight
}

// older versions of IE
else {
viewPortWidth = document.getElementsByTagName('body')[0].clientWidth,
viewPortHeight = document.getElementsByTagName('body')[0].clientHeight
}
return [viewPortWidth, viewPortHeight];
}