範例 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();
?
|
|