topical media & game development
flex-sandy-psychedelic.ax
flex-sandy-psychedelic.ax
[swf]
flex
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.geom.Point;
import flash.geom.Rectangle;
import sandy.core.World3D;
import sandy.core.light.Light3D;
import sandy.core.scenegraph.Camera3D;
import sandy.core.scenegraph.Group;
import sandy.materials.Appearance;
import sandy.materials.ColorMaterial;
[SWF(width="600", height="400", backgroundColor="#000000", frameRate="48")]
SandyPsychedelic.as
13 September 2007
author: Dennis Ippel - www.rozengain.com
public class @ax-flex-sandy-psychedelic extends Sprite
{
private var world:World3D;
private var speed:Number,
radius1:Number, radius2:Number, radius3:Number,
angle1:Number, angle2:Number, angle3:Number,
startZPos:int,
zIncrement:int,
currentColorIndex:uint,
colors:Array;
private var yingyang:flex_sandy_psychedelic_yingyang,
peaceSymbol:flex_sandy_psychedelic_peace,
ohm:flex_sandy_psychedelic_ohm;
private var screenBitmapData:BitmapData;
private var screenBitmap:Bitmap;
Initialize the 3D scene and create the symbols
public function @ax-flex-sandy-psychedelic()
{
// -- set all radii to 0
radius1 = radius2 = radius3 = 0;
// -- give each symbol a different start angle value
angle1 = 0;
angle2 = 45;
angle3 = 90;
// -- standard symbol depth. this value is used to
// reset a symbol's position once it has disappeared
// behind the camera
startZPos = -6000;
// -- the speed with which a symbol flies towards the camera
zIncrement = 100;
// -- create an array with some psychedelic colors
createColorArray();
// -- create a bitmapdata object. this is used to copy
// what's on the screen in a given frame. this creates
// the illusion that there's more than 3 objects in
// the scene.
screenBitmapData = new BitmapData(
800,
800,
false,
0x000000
);
screenBitmap = new Bitmap();
addChild( screenBitmap );
// -- instantiate the 3D world
world = World3D.getInstance();
world.container = this;
world.root = new Group( "rootGroup" );
world.light.setPower( Light3D.MAX_POWER );
// -- create the camera
world.camera = new Camera3D( 600, 600 );
world.camera.x = 0;
world.camera.y = 0;
world.camera.z = 300;
world.camera.lookAt( 0, 0, 0 );
world.root.addChild( world.camera );
// -- create the Ying Yang symbol
yingyang = new flex_sandy_psychedelic_yingyang( "yingyang" );
yingyang.appearance = new Appearance(
new ColorMaterial( nextColor )
);
yingyang.appearance.frontMaterial.lightingEnable = true;
yingyang.z = startZPos;
// -- create the Peace symbol
peaceSymbol = new flex_sandy_psychedelic_peace( "peace" );
peaceSymbol.appearance = new Appearance(
new ColorMaterial( nextColor )
);
peaceSymbol.appearance.frontMaterial.lightingEnable = true;
peaceSymbol.z = startZPos;
peaceSymbol.visible = false;
// -- create the Ohm symbol
ohm = new flex_sandy_psychedelic_ohm( "ohm" );
ohm.appearance = new Appearance(
new ColorMaterial( nextColor )
);
ohm.appearance.frontMaterial.lightingEnable = true;
ohm.z = startZPos;
ohm.visible = false;
// -- add the symbols to the scene
world.root.addChild( yingyang );
world.root.addChild( peaceSymbol );
world.root.addChild( ohm );
// -- start the animation loop
addEventListener( Event.ENTER_FRAME, animate );
}
The animation loop
parameter: event
private function animate( event:Event ):void
{
// -- animate the Ying Yang symbol
yingyang.x = Math.sin( angle1 ) * radius1;
yingyang.y = Math.cos( angle1 ) * radius1;
yingyang.rotateY += 8;
yingyang.z += zIncrement;
// -- update for the next step
angle1 += 0.5;
radius1 += 1;
if( peaceSymbol.visible )
{
// -- animate the Peace symbol
peaceSymbol.x = Math.sin( angle2 ) * radius2;
peaceSymbol.y = Math.cos( angle2 ) * radius2;
peaceSymbol.rotateY += 8;
peaceSymbol.z += zIncrement;
// -- update for the next step
angle2 += 0.5;
radius2 += 1;
}
if( ohm.visible )
{
// -- animate the Ohm symbol
ohm.x = Math.sin( angle3 ) * radius3;
ohm.y = Math.cos( angle3 ) * radius3;
ohm.rotateY += 8;
ohm.z += zIncrement;
// -- update for the next step
angle3 += 0.5;
radius3 += 1;
}
// -- copy the current screen into a bitmapdata
// object.
captureScreen();
// -- render the 3D scene
world.render();
if( yingyang.z > world.camera.z )
{
// -- reset the position and give it a new color
yingyang.z = startZPos;
yingyang.appearance.frontMaterial = new ColorMaterial( nextColor );
yingyang.appearance.frontMaterial.lightingEnable = true;
radius1 = 0;
} else if( yingyang.z >= startZPos * 0.3 && !peaceSymbol.visible ) {
// -- show the Peace symbol for the first time
peaceSymbol.visible = true;
} else if( yingyang.z >= startZPos * 0.6 && !ohm.visible ) {
// -- show the Ying Yang symbol for the first time
ohm.visible = true;
}
if( peaceSymbol.z > world.camera.z )
{
// -- reset the position and give it a new color
peaceSymbol.z = startZPos;
peaceSymbol.appearance.frontMaterial = new ColorMaterial( nextColor );
peaceSymbol.appearance.frontMaterial.lightingEnable = true;
radius2 = 0;
}
if( ohm.z > world.camera.z )
{
// -- reset the position and give it a new color
ohm.z = startZPos;
ohm.appearance.frontMaterial = new ColorMaterial( nextColor );
ohm.appearance.frontMaterial.lightingEnable = true;
radius3 = 0;
}
}
Create the color array and fill it up with
psychedelic colors.
private function createColorArray():void
{
colors = [
0xff0000,
0x00ff00,
0xffffff,
0xffa500,
0xffff00,
0x0000ff
];
}
Get the next color from the array
returns: the next color
private function get nextColor():uint
{
if( currentColorIndex == colors.length )
currentColorIndex = 0;
return colors[ currentColorIndex++ ];
}
Store the current frame in a BitmapData object
and apply a BlurFilter
private function captureScreen():void
{
screenBitmapData.draw(
this
);
screenBitmapData.applyFilter(
screenBitmapData,
new Rectangle( 0, 0, 800, 800 ),
new Point( 0, 0 ),
new BlurFilter( 2, 2, 1 )
);
screenBitmap.bitmapData = screenBitmapData;
}
}
}
(C) Æliens
27/08/2009
You may not copy or print any of this material without explicit permission of the author or the publisher.
In case of other copyright issues, contact the author.
