forked from: Light Burst forked from: Shining Text
テキストをアウトライン化してVector.<Point>に保存し
* テキストの外周から線を引いて光を表現する
/**
* Copyright h7zoo0519 ( http://wonderfl.net/user/h7zoo0519 )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/tFhk
*/
// forked from horned's Light Burst forked from: Shining Text
// forked from Kay's Shining Text
/*
* テキストをアウトライン化してVector.<Point>に保存し
* テキストの外周から線を引いて光を表現する
*/
package
{
import caurina.transitions.Tweener;
import flash.display.*;
import flash.events.*;
import flash.filters.BlurFilter;
import flash.filters.GlowFilter;
import flash.geom.*;
import flash.text.TextField;
public class LightBurst extends MovieClip
{
public const SW:Number = stage.stageWidth;
public const SH:Number = stage.stageHeight;
public const CX:Number = SW/2;
public const CY:Number = SH/2;
public var vOutline:Vector.<Point> = new Vector.<Point>();
public var lx:Number = 0;
private var canvas:Shape;
private var container:Sprite;
private var glowContainer:Sprite;
private var myText:SimpleText;
private var glowText:SimpleText;
private var screen:Bitmap;
private var buffer:BitmapData;
private var lightBuffer:BitmapData;
private var glowTextMask:Shape;
private var blurFilter:BlurFilter = new BlurFilter(12, 35);
public function LightBurst()
{
canvas = new Shape();
glowContainer = new Sprite();
addChild(glowContainer);
var overlayRect:Shape = createOverlayRect();
var trimRect:Shape = createTrimRect();
lightBuffer = new BitmapData(SW, SH, true, 0);
myText = new SimpleText('Light Burst', 'Georgia', 46, 0x98833D);
glowText = new SimpleText('Light Burst', 'Georgia', 46, 0xF5DC8D);
glowText.filters = [new GlowFilter(0xFFE8AB, 1, 10, 10, 4, 2), new BlurFilter(7, 7, 1)];
var vTemp:Vector.<Boolean> = new Vector.<Boolean>();
const TW:Number = myText.width;
const TH:Number = myText.height;
myText.x = (SW - TW) / 2;
myText.y = (SH - TH) / 2;
// Text -> BitmapData
var bmd:BitmapData = new BitmapData(TW,TH,true,0x00000000);
bmd.draw(myText);
// getPixelColor
for (var h:uint = 0; h < TH; h++) {
for (var w:uint = 0; w < TW; w++) {
vTemp[h*TW + w] = bmd.getPixel(w,h);
}
}
// Gain inner Pixels
for (h = 0; h < TH; h++) {
for (w = 0; w < TW; w++) {
var flg:Boolean = false;
var pos:uint = h*TW + w;
if (h == 0 || h == TH-1 || w == 0 || w == TW-1) {
flg = vTemp[pos];
} else {
flg = false;
if (vTemp[pos] == true) {
if (vTemp[pos+TW]+vTemp[pos-TW]+vTemp[pos-1]+vTemp[pos+1] < 4) {
flg = true;
}
}
}
if (flg) {
vOutline.push(new Point(w-TW/2,h-TH/2));
}
}
}
glowText.x = myText.x;
glowText.y = myText.y;
glowText.cacheAsBitmap = true;
glowTextMask = createGlowTextMask();
glowTextMask.cacheAsBitmap = true;
glowText.mask = glowTextMask;
glowTextMask.scaleX = 1.35;
glowContainer.addChild(glowText);
glowContainer.addChild(glowTextMask);
glowContainer.blendMode = BlendMode.LAYER;
container = new Sprite();
addChild(container);
container.addChild(myText);
container.addChild(glowContainer);
container.addChild(new Bitmap(lightBuffer));
container.addChild(overlayRect);
container.addChild(trimRect);
container.visible = false;
buffer = new BitmapData(SW, SH, false, 0);
screen = new Bitmap(buffer);
addChild(screen);
screen.smoothing = true;
addEventListener(Event.ENTER_FRAME, xAnimation);
zoomOutScreen();
}
private function xAnimation(e:Event):void {
lx+=5;
if (lx > SW) {
lx = 0;
zoomOutScreen();
}
glowTextMask.x = lx;
// Drow
var g:Graphics = canvas.graphics;
g.clear();
g.lineStyle(1,0xFFEB79,0.3);
const RANGE:Number = 17;
var len:int = vOutline.length;
for (var i:uint = 0; i < len; i++) {
var tx:Number = vOutline[i].x+CX;
if(tx > lx-RANGE && tx < lx+RANGE || (i%10 == 1 && tx > lx-RANGE*5 && tx < lx+RANGE*5)){
var r:Number = Math.atan2(vOutline[i].y,vOutline[i].x+(CX-lx));
var dp:Point = Point.polar(CX*3,r); // このCXは長さ
g.moveTo(vOutline[i].x+CX,vOutline[i].y+CY);
g.lineTo(vOutline[i].x+lx+dp.x, vOutline[i].y+CY+dp.y);
}
}
lightBuffer.fillRect(lightBuffer.rect, 0);
lightBuffer.draw(canvas);
lightBuffer.applyFilter(lightBuffer, lightBuffer.rect, new Point(), blurFilter);
lightBuffer.applyFilter(lightBuffer, lightBuffer.rect, new Point(), blurFilter);
buffer.fillRect(buffer.rect, 0);
buffer.draw(container, null, null, null, null, true);
}
private function zoomOutScreen():void{
const s:Number = 1.2;
screen.scaleX = screen.scaleY = s;
screen.x = -SW*(s-1)/2;
screen.y = -SH*(s-1)/2;
Tweener.addTween(screen, {scaleX:1, scaleY:1, x:0, y:0, time:2, delay:0.9, transition:"easeOutQuad"});
}
private function createGlowTextMask():Shape{
const G_PADDING:Number = 20;
const GW:Number = glowText.width + G_PADDING*2;
const GH:Number = glowText.height + G_PADDING*2;
var shape:Shape = new Shape();
var g:Graphics = shape.graphics;
var mat:Matrix = new Matrix();
var r:Number = GH/2;
mat.createGradientBox(2*r, 2*r, 0, -r, -r);
g.beginGradientFill(GradientType.RADIAL, [0xFFFFFF, 0xFFFFFF], [1, 0], [0, 255], mat);
g.drawCircle(0, 0, r);
g.endFill();
shape.x = (SW - GW) / 2 +r;
shape.y = (SH - GH) / 2 +r;
return shape;
}
private function createOverlayRect():Shape{
const SCALE_W:Number = 2;
const SCALE_H:Number = 1.2;
const RW:Number = SCALE_W*SW/2;
const RH:Number = SCALE_H*SH/2;
var shape:Shape = new Shape();
var g:Graphics = shape.graphics;
var mat:Matrix = new Matrix();
mat.createGradientBox(2*RW, 2*RH, 0, 0, 0);
g.beginGradientFill(GradientType.RADIAL, [0xFFFFFF, 0x000000], [1, 1], [0, 255], mat);
g.drawEllipse(0, 0, RW*2, RH*2);
g.endFill();
shape.x = (SW - shape.width) / 2;
shape.y = (SH - shape.height) / 2;
shape.blendMode = BlendMode.OVERLAY;
shape.cacheAsBitmap = true;
return shape;
}
private function createTrimRect():Shape{
const TY:Number = 35;
var shape:Shape = new Shape();
var g:Graphics = shape.graphics;
var mat:Matrix = new Matrix();
mat.createGradientBox(SW, SH-TY*2, Math.PI/2, 0, TY);
g.beginGradientFill(GradientType.LINEAR, [0, 0, 0, 0], [1, 0, 0, 1], [0, 51, 204, 255], mat);
g.drawRect(0, 0, SW, SH);
g.endFill();
shape.cacheAsBitmap = true;
return shape;
}
}
}
import flash.display.*;
import flash.text.*;
class SimpleText extends Sprite {
public function SimpleText(message:String, fontName:String, fontSize:Number, fontColor:uint) {
var tf:TextFormat = new TextFormat();
tf.color = fontColor;
tf.size = fontSize;
tf.font = fontName;
var txt:TextField = new TextField();
txt.autoSize = TextFieldAutoSize.LEFT;
txt.text = message;
txt.selectable = false;
txt.setTextFormat(tf);
addChild(txt);
}
}