How to animate from a png tile based image file

Hi all,
I would like to know is there any way to animate from a tile based .png image file? I have multiple images in 1 png file having slight changes in each image, which if cropped and put into layers one over the other, will give the feel of animation or a character moving or walking etc...
I want to know can we do that kind of animation in flash as we do it in C++ or Java and how can we do it.
Any help will be highly appreciated.
Thank you
Shanz - Iceheros

I want to use action script to externally call/access the png file with url request and url loader and animate the images from the tile based png image file.
Anybody know how to do this in flash with as3.
Here is the image for example:
i want to animate this images and call it externally and access each tile 1 after another.
Any Help???
Thanks,
Shanz - Iceheros

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if(!(obj instanceof Integer)) {
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return;
} else {
encodePixels(i, j, k, l, ai, i1, j1);
return;
private void encodeFinish() throws IOException {
if(accumulate) {
encodePixels(0, 0, width, height, accumulator, 0, width);
accumulator = null;
accumulate = false;
private synchronized void stop() {
encoding = false;
notifyAll();
public void setDimensions(int i, int j) {
width = i;
height = j;
public void setProperties(Hashtable hashtable) {
props = hashtable;
public void setColorModel(ColorModel colormodel) {
public void setHints(int i) {
hintflags = i;
public void setPixels(int i, int j, int k, int l, ColorModel colormodel, byte abyte0[], int i1,
int j1) {
int ai[] = new int[k];
for(int k1 = 0; k1 < l; k1++) {
int l1 = i1 + k1 * j1;
for(int i2 = 0; i2 < k; i2++)
ai[i2] = colormodel.getRGB(abyte0[l1 + i2] & 0xff);
try {
encodePixelsWrapper(i, j + k1, k, 1, ai, 0, k);
catch(IOException ioexception) {
iox = ioexception;
stop();
return;
public void setPixels(int i, int j, int k, int l, ColorModel colormodel, int ai[], int i1,
int j1) {
if(colormodel == rgbModel) {
try {
encodePixelsWrapper(i, j, k, l, ai, i1, j1);
return;
catch(IOException ioexception) {
iox = ioexception;
stop();
return;
int ai1[] = new int[k];
for(int k1 = 0; k1 < l; k1++) {
int l1 = i1 + k1 * j1;
for(int i2 = 0; i2 < k; i2++)
ai1[i2] = colormodel.getRGB(ai[l1 + i2]);
try {
encodePixelsWrapper(i, j + k1, k, 1, ai1, 0, k);
catch(IOException ioexception1) {
iox = ioexception1;
stop();
return;
public void imageComplete(int i) {
producer.removeConsumer(this);
if(i == 4)
iox = new IOException("image aborted");
else
try {
encodeFinish();
encodeDone();
catch(IOException ioexception) {
iox = ioexception;
stop();
protected OutputStream out;
private ImageProducer producer;
private int width;
private int height;
private int hintflags;
private boolean started;
private boolean encoding;
private IOException iox;
private static final ColorModel rgbModel = ColorModel.getRGBdefault();
private Hashtable props;
private boolean accumulate;
private int accumulator[];
class GifEncoderHashitem {
public GifEncoderHashitem(int i, int j, int k, boolean flag) {
rgb = i;
count = j;
index = k;
isTransparent = flag;
public int rgb;
public int count;
public int index;
public boolean isTransparent;
class GifEncoder extends ImageEncoder {
public GifEncoder(Image image, OutputStream outputstream) throws IOException {
super(image, outputstream);
interlace = false;
maxbits = 12;
maxmaxcode = 4096;
htab = new int[5003];
codetab = new int[5003];
hsize = 5003;
clear_flg = false;
accum = new byte[256];
public GifEncoder(Image image, OutputStream outputstream, boolean flag) throws IOException {
super(image, outputstream);
interlace = false;
maxbits = 12;
maxmaxcode = 4096;
htab = new int[5003];
codetab = new int[5003];
hsize = 5003;
clear_flg = false;
accum = new byte[256];
interlace = flag;
public GifEncoder(ImageProducer imageproducer, OutputStream outputstream) throws IOException {
super(imageproducer, outputstream);
interlace = false;
maxbits = 12;
maxmaxcode = 4096;
htab = new int[5003];
codetab = new int[5003];
hsize = 5003;
clear_flg = false;
accum = new byte[256];
public GifEncoder(ImageProducer imageproducer, OutputStream outputstream, boolean flag) throws IOException {
super(imageproducer, outputstream);
interlace = false;
maxbits = 12;
maxmaxcode = 4096;
htab = new int[5003];
codetab = new int[5003];
hsize = 5003;
clear_flg = false;
accum = new byte[256];
interlace = flag;
void encodeStart(int i, int j) throws IOException {
width = i;
height = j;
rgbPixels = new int[j][i];
void encodePixels(int i, int j, int k, int l, int ai[], int i1, int j1) throws IOException {
for(int k1 = 0; k1 < l; k1++)
System.arraycopy(ai, k1 * j1 + i1, rgbPixels[j + k1], i, k);
void encodeDone() throws IOException {
int i = -1;
int j = -1;
colorHash = new IntHashtable();
int k = 0;
for(int l = 0; l < height; l++) {
for(int i1 = 0; i1 < width; i1++) {
int j1 = rgbPixels[l][i1];
boolean flag = j1 >>> 24 < 128;
if(flag)
if(i < 0) {
i = k;
j = j1;
} else
if(j1 != j)
rgbPixels[l][i1] = j1 = j;
GifEncoderHashitem gifencoderhashitem = (GifEncoderHashitem)colorHash.get(j1);
if(gifencoderhashitem == null) {
if(k >= 256)
throw new IOException("too many colors for a GIF");
gifencoderhashitem = new GifEncoderHashitem(j1, 1, k, flag);
k++;
colorHash.put(j1, gifencoderhashitem);
} else {
gifencoderhashitem.count++;
byte byte0;
if(k <= 2)
byte0 = 1;
else
if(k <= 4)
byte0 = 2;
else
if(k <= 16)
byte0 = 4;
else
byte0 = 8;
int k1 = 1 << byte0;
byte abyte0[] = new byte[k1];
byte abyte1[] = new byte[k1];
byte abyte2[] = new byte[k1];
for(Enumeration enumeration = colorHash.elements(); enumeration.hasMoreElements();) {
GifEncoderHashitem gifencoderhashitem1 = (GifEncoderHashitem)enumeration.nextElement();
abyte0[gifencoderhashitem1.index] = (byte)(gifencoderhashitem1.rgb >> 16 & 0xff);
abyte1[gifencoderhashitem1.index] = (byte)(gifencoderhashitem1.rgb >> 8 & 0xff);
abyte2[gifencoderhashitem1.index] = (byte)(gifencoderhashitem1.rgb & 0xff);
GIFEncode(super.out, width, height, interlace, (byte)0, i, byte0, abyte0, abyte1, abyte2);
byte GetPixel(int i, int j) throws IOException {
GifEncoderHashitem gifencoderhashitem = (GifEncoderHashitem)colorHash.get(rgbPixels[j][i]);
if(gifencoderhashitem == null)
throw new IOException("color not found");
else
return (byte)gifencoderhashitem.index;
static void writeString(OutputStream outputstream, String s) throws IOException {
byte abyte0[] = s.getBytes();
outputstream.write(abyte0);
void GIFEncode(OutputStream outputstream, int i, int j, boolean flag, byte byte0, int k, int l,
byte abyte0[], byte abyte1[], byte abyte2[]) throws IOException {
Width = i;
Height = j;
Interlace = flag;
int k1 = 1 << l;
int j1;
int i1 = j1 = 0;
CountDown = i * j;
Pass = 0;
int l1;
if(l <= 1)
l1 = 2;
else
l1 = l;
curx = 0;
cury = 0;
writeString(outputstream, "GIF89a");
Putword(i, outputstream);
Putword(j, outputstream);
char c = '\uFF80';
c |= 'p';
c |= (byte)(l - 1);
Putbyte((byte)c, outputstream);
Putbyte(byte0, outputstream);
Putbyte((byte)0, outputstream);
for(int i2 = 0; i2 < k1; i2++) {
Putbyte(abyte0[i2], outputstream);
Putbyte(abyte1[i2], outputstream);
Putbyte(abyte2[i2], outputstream);
if(k != -1) {
Putbyte((byte)33, outputstream);
Putbyte((byte)-7, outputstream);
Putbyte((byte)4, outputstream);
Putbyte((byte)1, outputstream);
Putbyte((byte)0, outputstream);
Putbyte((byte)0, outputstream);
Putbyte((byte)k, outputstream);
Putbyte((byte)0, outputstream);
Putbyte((byte)44, outputstream);
Putword(i1, outputstream);
Putword(j1, outputstream);
Putword(i, outputstream);
Putword(j, outputstream);
if(flag)
Putbyte((byte)64, outputstream);
else
Putbyte((byte)0, outputstream);
Putbyte((byte)l1, outputstream);
compress(l1 + 1, outputstream);
Putbyte((byte)0, outputstream);
Putbyte((byte)59, outputstream);
void BumpPixel() {
curx++;
if(curx == Width) {
curx = 0;
if(!Interlace) {
cury++;
return;
switch(Pass) {
default:
break;
case 0: // '\0'
cury += 8;
if(cury >= Height) {
Pass++;
cury = 4;
return;
break;
case 1: // '\001'
cury += 8;
if(cury >= Height) {
Pass++;
cury = 2;
return;
break;
case 2: // '\002'
cury += 4;
if(cury >= Height) {
Pass++;
cury = 1;
return;
break;
case 3: // '\003'
cury += 2;
return;
int GIFNextPixel() throws IOException {
if(CountDown == 0) {
return -1;
} else {
CountDown--;
byte byte0 = GetPixel(curx, cury);
BumpPixel();
return byte0 & 0xff;
void Putword(int i, OutputStream outputstream) throws IOException {
Putbyte((byte)(i & 0xff), outputstream);
Putbyte((byte)(i >> 8 & 0xff), outputstream);
void Putbyte(byte byte0, OutputStream outputstream) throws IOException {
outputstream.write(byte0);
final int MAXCODE(int i) {
return (1 << i) - 1;
void compress(int i, OutputStream outputstream) throws IOException {
g_init_bits = i;
clear_flg = false;
n_bits = g_init_bits;
maxcode = MAXCODE(n_bits);
ClearCode = 1 << i - 1;
EOFCode = ClearCode + 1;
free_ent = ClearCode + 2;
char_init();
int j1 = GIFNextPixel();
int i2 = 0;
for(int j = hsize; j < 0x10000; j *= 2)
i2++;
i2 = 8 - i2;
int l1 = hsize;
cl_hash(l1);
output(ClearCode, outputstream);
int i1;
label0:
while((i1 = GIFNextPixel()) != -1) {
int k = (i1 << maxbits) + j1;
int l = i1 << i2 ^ j1;
if(htab[l] == k) {
j1 = codetab[l];
continue;
if(htab[l] >= 0) {
int k1 = l1 - l;
if(l == 0)
k1 = 1;
do {
if((l -= k1) < 0)
l += l1;
if(htab[l] == k) {
j1 = codetab[l];
continue label0;
} while(htab[l] >= 0);
output(j1, outputstream);
j1 = i1;
if(free_ent < maxmaxcode) {
codetab[l] = free_ent++;
htab[l] = k;
} else {
cl_block(outputstream);
output(j1, outputstream);
output(EOFCode, outputstream);
void output(int i, OutputStream outputstream) throws IOException {
cur_accum &= masks[cur_bits];
if(cur_bits > 0)
cur_accum |= i << cur_bits;
else
cur_accum = i;
for(cur_bits += n_bits; cur_bits >= 8; cur_bits -= 8) {
char_out((byte)(cur_accum & 0xff), outputstream);
cur_accum >>= 8;
if(free_ent > maxcode || clear_flg)
if(clear_flg) {
maxcode = MAXCODE(n_bits = g_init_bits);
clear_flg = false;
} else {
n_bits++;
if(n_bits == maxbits)
maxcode = maxmaxcode;
else
maxcode = MAXCODE(n_bits);
if(i == EOFCode) {
for(; cur_bits > 0; cur_bits -= 8) {
char_out((byte)(cur_accum & 0xff), outputstream);
cur_accum >>= 8;
flush_char(outputstream);
void cl_block(OutputStream outputstream) throws IOException {
cl_hash(hsize);
free_ent = ClearCode + 2;
clear_flg = true;
output(ClearCode, outputstream);
void cl_hash(int i) {
for(int j = 0; j < i; j++)
htab[j] = -1;
void char_init() {
a_count = 0;
void char_out(byte byte0, OutputStream outputstream) throws IOException {
accum[a_count++] = byte0;
if(a_count >= 254)
flush_char(outputstream);
void flush_char(OutputStream outputstream) throws IOException {
if(a_count > 0) {
outputstream.write(a_count);
outputstream.write(accum, 0, a_count);
a_count = 0;
private boolean interlace;
int width;
int height;
int rgbPixels[][];
IntHashtable colorHash;
int Width;
int Height;
boolean Interlace;
int curx;
int cury;
int CountDown;
int Pass;
static final int EOF = -1;
static final int BITS = 12;
static final int HSIZE = 5003;
int n_bits;
int maxbits;
int maxcode;
int maxmaxcode;
int htab[];
int codetab[];
int hsize;
int free_ent;
boolean clear_flg;
int g_init_bits;
int ClearCode;
int EOFCode;
int cur_accum;
int cur_bits;
int masks[] = {
0, 1, 3, 7, 15, 31, 63, 127, 255, 511,
1023, 2047, 4095, 8191, 16383, 32767, 65535
int a_count;
byte accum[];

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