CMS AP-Fusion - движок для вашего сайта

Description

SWFAction swfaction ( string script )

Внимание

Эта функция является ЭКСПЕРИМЕНТАЛЬНОЙ. Поведение этой функции, ее имя и относящаяся к ней документация могут измениться в последующих версиях PHP без уведомления. Используйте эту функцию на свой страх и риск.

swfaction() creates a new Action, and compiles the given script into an SWFAction object.

The script syntax is based on the C language, but with a lot taken out- the SWF bytecode machine is just too simpleminded to do a lot of things we might like. For instance, we can't implement function calls without a tremendous amount of hackery because the jump bytecode has a hardcoded offset value. No pushing your calling address to the stack and returning- every function would have to know exactly where to return to.

So what's left? The compiler recognises the following tokens:

break
for
continue
if
else
do
while

There is no typed data; all values in the SWF action machine are stored as strings. The following functions can be used in expressions:

time(): Returns the number of milliseconds (?) elapsed since the movie started.
random(seed): Returns a pseudo-random number in the range 0-seed.
length(expr): Returns the length of the given expression.
int(number): Returns the given number rounded down to the nearest integer.
concat(expr, expr): Returns the concatenation of the given expressions.
ord(expr): Returns the ASCII code for the given character
chr(num): Returns the character for the given ASCII code
substr(string, location, length): Returns the substring of length length at location location of the given string string.

Additionally, the following commands may be used:

duplicateClip(clip, name, depth): Duplicate the named movie clip (aka sprite). The new movie clip has name name and is at depth depth.
removeClip(expr): Removes the named movie clip.
trace(expr): Write the given expression to the trace log. Doubtful that the browser plugin does anything with this.
startDrag(target, lock, [left, top, right, bottom]): Start dragging the movie clip target. The lock argument indicates whether to lock the mouse (?)- use 0 (FALSE) or 1 (TRUE). Optional parameters define a bounding area for the dragging.
stopDrag(): Stop dragging my heart around. And this movie clip, too.
callFrame(expr): Call the named frame as a function.
getURL(url, target, [method]): Load the given URL into the named target. The target argument corresponds to HTML document targets (such as "_top" or "_blank"). The optional method argument can be POST or GET if you want to submit variables back to the server.
loadMovie(url, target): Load the given URL into the named target. The target argument can be a frame name (I think), or one of the magical values "_level0" (replaces current movie) or "_level1" (loads new movie on top of current movie).
nextFrame(): Go to the next frame.
prevFrame(): Go to the last (or, rather, previous) frame.
play(): Start playing the movie.
stop(): Stop playing the movie.
toggleQuality(): Toggle between high and low quality.
stopSounds(): Stop playing all sounds.
gotoFrame(num): Go to frame number num. Frame numbers start at 0.
gotoFrame(name): Go to the frame named name. Which does a lot of good, since I haven't added frame labels yet.
setTarget(expr): Sets the context for action. Or so they say- I really have no idea what this does.

And there's one weird extra thing. The expression frameLoaded(num) can be used in if statements and while loops to check if the given frame number has been loaded yet. Well, it's supposed to, anyway, but I've never tested it and I seriously doubt it actually works. You can just use /:framesLoaded instead.

Movie clips (all together now- aka sprites) have properties. You can read all of them (or can you?), you can set some of them, and here they are:

x
y
xScale
yScale
currentFrame - (read-only)
totalFrames - (read-only)
alpha - transparency level
visible - 1=on, 0=off (?)
width - (read-only)
height - (read-only)
rotation
target - (read-only) (???)
framesLoaded - (read-only)
name
dropTarget - (read-only) (???)
url - (read-only) (???)
highQuality - 1=high, 0=low (?)
focusRect - (???)
soundBufTime - (???)

So, setting a sprite's x position is as simple as /box.x = 100;. Why the slash in front of the box, though? That's how flash keeps track of the sprites in the movie, just like a Unix filesystem- here it shows that box is at the top level. If the sprite named box had another sprite named biff inside of it, you'd set its x position with /box/biff.x = 100;. At least, I think so; correct me if I'm wrong here.

This simple example will move the red square across the window.

Пример 1. swfaction() example


<?php

  $s 
= new 
SWFShape
();

  
$f 
= 
$s
->
addFill
(
0xff
, 
0
, 
0
);

  
$s
->
setRightFill
(
$f
);



  
$s
->
movePenTo
(-
500
, -
500
);

  
$s
->
drawLineTo
(
500
, -
500
);

  
$s
->
drawLineTo
(
500
, 
500
);

  
$s
->
drawLineTo
(-
500
, 
500
);

  
$s
->
drawLineTo
(-
500
, -
500
);



  
$p 
= new 
SWFSprite
();

  
$i 
= 
$p
->
add
(
$s
);

  
$i
->
setDepth
(
1
);

  
$p
->
nextFrame
();



  for (
$n
=
0
; 
$n
<
5
; ++
$n
) {

    
$i
->
rotate
(-
15
);

    
$p
->
nextFrame
();

  }



  
$m 
= new 
SWFMovie
();

  
$m
->
setBackground
(
0xff
, 
0xff
, 
0xff
);

  
$m
->
setDimension
(
6000
, 
4000
);



  
$i 
= 
$m
->
add
(
$p
);

  
$i
->
setDepth
(
1
);

  
$i
->
moveTo
(-
500
,
2000
);

  
$i
->
setName
(
"box"
);



  
$m
->
add
(new 
SWFAction
(
"/box.x += 3;"
));

  
$m
->
nextFrame
();

  
$m
->
add
(new 
SWFAction
(
"gotoFrame(0); play();"
));

  
$m
->
nextFrame
();



  
header
(
'Content-type: application/x-shockwave-flash'
);

  
$m
->
output
();


?>

This simple example tracks down your mouse on the screen.

Пример 2. swfaction() example


<?php



  $m 
= new 
SWFMovie
();

  
$m
->
setRate
(
36.0
);

  
$m
->
setDimension
(
1200
, 
800
);

  
$m
->
setBackground
(
0
, 
0
, 
0
);



  
/* mouse tracking sprite - empty, but follows mouse so we can

     get its x and y coordinates */



  
$i 
= 
$m
->
add
(new 
SWFSprite
());

  
$i
->
setName
(
'mouse'
);



  
$m
->
add
(new 
SWFAction
(
"

    startDrag('/mouse', 1); /* '1' means lock sprite to the mouse */

  "
));



  
/* might as well turn off antialiasing, since these are just squares. */



  
$m
->
add
(new 
SWFAction
(
"

    this.quality = 0;

  "
));



  
/* morphing box */

  
$r 
= new 
SWFMorph
();

  
$s 
= 
$r
->
getShape1
();



  
/* Note this is backwards from normal shapes.  No idea why. */

  
$s
->
setLeftFill
(
$s
->
addFill
(
0xff
, 
0xff
, 
0xff
));

  
$s
->
movePenTo
(-
40
, -
40
);

  
$s
->
drawLine
(
80
, 
0
);

  
$s
->
drawLine
(
0
, 
80
);

  
$s
->
drawLine
(-
80
, 
0
);

  
$s
->
drawLine
(
0
, -
80
);



  
$s 
= 
$r
->
getShape2
();



  
$s
->
setLeftFill
(
$s
->
addFill
(
0x00
, 
0x00
, 
0x00
));

  
$s
->
movePenTo
(-
1
, -
1
);

  
$s
->
drawLine
(
2
, 
0
);

  
$s
->
drawLine
(
0
, 
2
);

  
$s
->
drawLine
(-
2
, 
0
);

  
$s
->
drawLine
(
0
, -
2
);



  
/* sprite container for morphing box -

     this is just a timeline w/ the box morphing */



  
$box 
= new 
SWFSprite
();

  
$box
->
add
(new 
SWFAction
(
"

    stop();

  "
));

  
$i 
= 
$box
->
add
(
$r
);



  for (
$n
=
0
; 
$n
<=
20
; ++
$n
) {

    
$i
->
setRatio
(
$n
/
20
);

    
$box
->
nextFrame
();

  }



  
/* this container sprite allows us to use the same action code many times */



  
$cell 
= new 
SWFSprite
();

  
$i 
= 
$cell
->
add
(
$box
);

  
$i
->
setName
(
'box'
);



  
$cell
->
add
(new 
SWFAction
(
"



    setTarget('box');



    /* ...x means the x coordinate of the parent, i.e. (..).x */

    dx = (/mouse.x + random(6)-3 - ...x)/5;

    dy = (/mouse.y + random(6)-3 - ...y)/5;

    gotoFrame(int(dx*dx + dy*dy));



  "
));



  
$cell
->
nextFrame
();

  
$cell
->
add
(new 
SWFAction
(
"



    gotoFrame(0);

    play();



  "
));



  
$cell
->
nextFrame
();



  
/* finally, add a bunch of the cells to the movie */



  
for (
$x
=
0
; 
$x
<
12
; ++
$x
) {

    for (
$y
=
0
; 
$y
<
8
; ++
$y
) {

      
$i 
= 
$m
->
add
(
$cell
);

      
$i
->
moveTo
(
100
*
$x
+
50
, 
100
*
$y
+
50
);

    }

  }



  
$m
->
nextFrame
();



  
$m
->
add
(new 
SWFAction
(
"



    gotoFrame(1);

    play();



  "
));



  
header
(
'Content-type: application/x-shockwave-flash'
);

  
$m
->
output
();


?>

Same as above, but with nice colored balls...

Пример 3. swfaction() example


<?php



  $m 
= new 
SWFMovie
();

  
$m
->
setDimension
(
11000
, 
8000
);

  
$m
->
setBackground
(
0x00
, 
0x00
, 
0x00
);



  
$m
->
add
(new 
SWFAction
(
"



this.quality = 0;

/frames.visible = 0;

startDrag('/mouse', 1);



  "
));



  
// mouse tracking sprite

  
$t 
= new 
SWFSprite
();

  
$i 
= 
$m
->
add
(
$t
);

  
$i
->
setName
(
'mouse'
);



  
$g 
= new 
SWFGradient
();

  
$g
->
addEntry
(
0
, 
0xff
, 
0xff
, 
0xff
, 
0xff
);

  
$g
->
addEntry
(
0.1
, 
0xff
, 
0xff
, 
0xff
, 
0xff
);

  
$g
->
addEntry
(
0.5
, 
0xff
, 
0xff
, 
0xff
, 
0x5f
);

  
$g
->
addEntry
(
1.0
, 
0xff
, 
0xff
, 
0xff
, 
0
);



  
// gradient shape thing

  
$s 
= new 
SWFShape
();

  
$f 
= 
$s
->
addFill
(
$g
, 
SWFFILL_RADIAL_GRADIENT
);

  
$f
->
scaleTo
(
0.03
);

  
$s
->
setRightFill
(
$f
);

  
$s
->
movePenTo
(-
600
, -
600
);

  
$s
->
drawLine
(
1200
, 
0
);

  
$s
->
drawLine
(
0
, 
1200
);

  
$s
->
drawLine
(-
1200
, 
0
);

  
$s
->
drawLine
(
0
, -
1200
);



  
// need to make this a sprite so we can multColor it

  
$p 
= new 
SWFSprite
();

  
$p
->
add
(
$s
);

  
$p
->
nextFrame
();



  
// put the shape in here, each frame a different color

  
$q 
= new 
SWFSprite
();

  
$q
->
add
(new 
SWFAction
(
"gotoFrame(random(7)+1); stop();"
));

  
$i 
= 
$q
->
add
(
$p
);



  
$i
->
multColor
(
1.0
, 
1.0
, 
1.0
);

  
$q
->
nextFrame
();

  
$i
->
multColor
(
1.0
, 
0.5
, 
0.5
);

  
$q
->
nextFrame
();

  
$i
->
multColor
(
1.0
, 
0.75
, 
0.5
);

  
$q
->
nextFrame
();

  
$i
->
multColor
(
1.0
, 
1.0
, 
0.5
);

  
$q
->
nextFrame
();

  
$i
->
multColor
(
0.5
, 
1.0
, 
0.5
);

  
$q
->
nextFrame
();

  
$i
->
multColor
(
0.5
, 
0.5
, 
1.0
);

  
$q
->
nextFrame
();

  
$i
->
multColor
(
1.0
, 
0.5
, 
1.0
);

  
$q
->
nextFrame
();



  
// finally, this one contains the action code

  
$p 
= new 
SWFSprite
();

  
$i 
= 
$p
->
add
(
$q
);

  
$i
->
setName
(
'frames'
);

  
$p
->
add
(new 
SWFAction
(
"



dx = (/:mousex-/:lastx)/3 + random(10)-5;

dy = (/:mousey-/:lasty)/3;

x = /:mousex;

y = /:mousey;

alpha = 100;



  "
));

  
$p
->
nextFrame
();



  
$p
->
add
(new 
SWFAction
(
"



this.x = x;

this.y = y;

this.alpha = alpha;

x += dx;

y += dy;

dy += 3;

alpha -= 8;



  "
));

  
$p
->
nextFrame
();



  
$p
->
add
(new 
SWFAction
(
"prevFrame(); play();"
));

  
$p
->
nextFrame
();



  
$i 
= 
$m
->
add
(
$p
);

  
$i
->
setName
(
'frames'
);

  
$m
->
nextFrame
();



  
$m
->
add
(new 
SWFAction
(
"



lastx = mousex;

lasty = mousey;

mousex = /mouse.x;

mousey = /mouse.y;



++num;



if (num == 11)

  num = 1;



removeClip('char' & num);

duplicateClip(/frames, 'char' & num, num);



  "
));



  
$m
->
nextFrame
();

  
$m
->
add
(new 
SWFAction
(
"prevFrame(); play();"
));



  
header
(
'Content-type: application/x-shockwave-flash'
);

  
$m
->
output
();


?>