в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

Admin: 1 версия

2010-05-26T08:14:31Z

1 версия

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==Add Enter Frame event listener==



<source lang="java">

package {
import flash.display.Sprite;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.text.TextField;
import flash.events.Event;
public class Main extends Sprite {
private var _bitmap:BitmapData= new BitmapData(100, 100, false, 0xffffffff);
private var _textfield:TextField= new TextField( );
public function Main( ) {
var image:Bitmap = new Bitmap(_bitmap);
addChild(image);
_bitmap.noise(1000, 0, 255, 1|2|4, false);

addChild(_textfield);
_textfield.y = 100;

addEventListener(Event.ENTER_FRAME, onEnterFrame);
}

public function onEnterFrame(event:Event):void {
var colorVal:Number = _bitmap.getPixel(mouseX, mouseY)
_textfield.text = "#" + colorVal.toString(16).toUpperCase( );
}
}
}
</source>

==Animating with the ENTER_FRAME Event: Animating a TextField horizontally==



<source lang="java">

package{
import flash.display.*;
import flash.text.*;
import flash.events.*;
public class Main extends Sprite {
private var t:TextField;

public function Main( ) {
t = new TextField( );
t.text = "Hello";
t.autoSize = TextFieldAutoSize.LEFT;
addChild(t);

addEventListener(Event.ENTER_FRAME, moveTextRight);
}

public function moveTextRight (e:Event):void {
t.x += 10;
}
}
}
</source>

==Designated Frame Rate Versus Actual Frame Rate==



<source lang="java">

package {
import flash.display.*;
import flash.text.*;
public class Main extends Sprite {
public function Main( ) {
var t:TextField = new TextField( );
trace(stage.frameRate.toString());
}
}
}
</source>

==Measuring the actual frame rate==



<source lang="java">

package {
import flash.display.*;
import flash.events.*;
import flash.utils.*;
import flash.text.*;
public class Main extends Sprite {
private var lastFrameTime:Number;
private var output:TextField = new TextField( );
public function Main() {
output.autoSize = TextFieldAutoSize.LEFT;
output.border = true;
output.background = true;
output.selectable = false;
addChild(output);
addEventListener(Event.ENTER_FRAME, enterFrameListener);
}
private function enterFrameListener (e:Event):void {
var now:Number = getTimer( );
var elapsed:Number = now - lastFrameTime;
var framesPerSecond:Number = Math.round(1000/elapsed);
output.text = "Time since last frame: " + elapsed
+ "\nExtrapolated actual frame rate: " + framesPerSecond
+ "\nDesignated frame rate: " + stage.frameRate;
lastFrameTime = now;
}
}
}
</source>

==Move TextField in animation==



<source lang="java">

package{
import flash.display.*;
import flash.text.*;
import flash.events.*;
public class Main extends Sprite {
private var t:TextField;

public function Main() {
t = new TextField();
t.text = "Hello";
t.autoSize = TextFieldAutoSize.LEFT;
addChild(t);

addEventListener(Event.ENTER_FRAME, moveTextRight);
}

public function moveTextRight (e:Event):void {
if (t.x <= 300) {
t.x += 10;
if (t.x > 300) {
t.x = 300;
}
}
}
}
}
</source>

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Flash / Flex / ActionScript/Animation/Frame Event - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия