/**
 * 25-Line ActionScript Contest Entry
 * 
 * Project: Circular logic
 * Author:  Sakri Rosenstrom
 * Date:    18 November 2008
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
 
// 3 free lines! Alter the parameters of the following lines or remove them.
// Do not substitute other code for the three lines in this section
[SWF(width=800, height=380, backgroundColor=0x000044, frameRate=31)]
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
// 25 lines begins here!

var tf:TextField=new TextField();
tf.defaultTextFormat=new TextFormat("Helvetica",120,0xFFFFFF,true);//Hopefully all machines have Helvetica...
tf.text="Circular Logic Works Because ";
tf.autoSize=TextFieldAutoSize.LEFT;
tf.filters=[new GlowFilter(0x2222BB,.7,12,12,4,3)]
var material:BitmapData=new BitmapData(tf.width+10,tf.height+10,false,0x000044);
material.draw(tf,null,null,null,null,true);
var vertices:Vector.<Number>=new Vector.<Number>(),t_vertices:Vector.<Number>=new Vector.<Number>(),points:Vector.<Number>=new Vector.<Number>(),triangles:Vector.<int>=new Vector.<int>(),uv:Vector.<Number>=new Vector.<Number>(),angle:Number=0,radius:Number=material.width/Math.PI/2,slices:uint=20,x_rot:Number=0,x_rot_speed:Number=1,y_rot:Number=-150,z_rot:Number=0,z_rot_dir:Number=-.1;
for(var i:int=0;i<=slices;i++){
	vertices.push(radius*Math.cos(angle*(Math.PI/180)),0,radius*Math.sin(angle*(Math.PI/180)),radius*Math.cos(angle*(Math.PI/180)),material.height,radius*Math.sin(angle*(Math.PI/180)));
	uv.push(1-angle/360,0,0,1-angle/360,1,0);
	angle+=(360/slices);
	if(i>1)triangles.push(i*2-4, i*2-2, i*2-3,i*2-3, i*2-2, i*2-1);
}
triangles.push(i*2-4, i*2-2, i*2-3,i*2-3, i*2-2, i*2-1);
addEventListener("enterFrame",function handleEnterFrame(e:Event=null) {
	var transform_matrix:Matrix3D=new Matrix3D();
	transform_matrix.prependTranslation(stage.stageWidth/2,stage.stageHeight/2-material.height/2,0);//maybe better to use a container?
	transform_matrix.prependRotation(y_rot--, Vector3D.Y_AXIS);
	transform_matrix.prependRotation((z_rot+=z_rot_dir), Vector3D.Z_AXIS);
	if(z_rot>20 || z_rot<-20)z_rot_dir*=-1;
	transform_matrix.transformVectors(vertices, t_vertices);
	Utils3D.projectVectors(new Matrix3D(), t_vertices, points, uv);
	graphics.clear();
	graphics.beginBitmapFill(material);
	graphics.drawTriangles(points, triangles, uv, TriangleCulling.POSITIVE);
});


// 25 lines ends here!