SWFDisplayItem->rotateTo()

(PHP 4 >= 4.0.5)

SWFDisplayItem->rotateTo() — Rotates the object in global coordinates

Description

SWFDisplayItem

void rotateTo ( float $angle )

Warning

This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.

swfdisplayitem->rotateto() set the current object rotation to angle degrees in global coordinates.

The object may be a swfshape(), a swfbutton(), a swftext() or a swfsprite() object. It must have been added using the swfmovie->add().

Return Values

No value is returned.

Examples

This example bring three rotating string from the background to the foreground. Pretty nice.

Example #1 swfdisplayitem->rotateto() example


<?php

$thetext =  "ming!";



$f = new SWFFont("Bauhaus 93.fdb");



$m = new SWFMovie();

$m->setRate(24.0);

$m->setDimension(2400, 1600);

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



// functions with huge numbers of arbitrary

// arguments are always a good idea!  Really!



function text($r, $g, $b, $a, $rot, $x, $y, $scale, $string) 

{

  global $f, $m;



  $t = new SWFText();

  $t->setFont($f);

  $t->setColor($r, $g, $b, $a);

  $t->setHeight(960);

  $t->moveTo(-($f->getWidth($string))/2, $f->getAscent()/2);

  $t->addString($string);



  // we can add properties just like a normal PHP var,

  // as long as the names aren't already used.

  // e.g., we can't set $i->scale, because that's a function



  $i = $m->add($t);

  $i->x = $x;

  $i->y = $y;

  $i->rot = $rot;

  $i->s = $scale;

  $i->rotateTo($rot);

  $i->scale($scale, $scale);



  // but the changes are local to the function, so we have to

  // return the changed object.  kinda weird..



  return $i;

}



function step($i) 

{

  $oldrot = $i->rot;

  $i->rot = 19*$i->rot/20;

  $i->x = (19*$i->x + 1200)/20;

  $i->y = (19*$i->y + 800)/20;

  $i->s = (19*$i->s + 1.0)/20;



  $i->rotateTo($i->rot);

  $i->scaleTo($i->s, $i->s);

  $i->moveTo($i->x, $i->y);



  return $i;

}



// see?  it sure paid off in legibility:



$i1 = text(0xff, 0x33, 0x33, 0xff, 900, 1200, 800, 0.03, $thetext);

$i2 = text(0x00, 0x33, 0xff, 0x7f, -560, 1200, 800, 0.04, $thetext);

$i3 = text(0xff, 0xff, 0xff, 0x9f, 180, 1200, 800, 0.001, $thetext);



for ($i=1; $i<=100; ++$i) {

  $i1 = step($i1);

  $i2 = step($i2);

  $i3 = step($i3);



  $m->nextFrame();

}



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

$m->output();

?>

SWFDisplayItem->rotateTo()

Description

Return Values

Examples

See Also