flash on 2009-7-8
/**
* Copyright set0 ( http://wonderfl.net/user/set0 )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/7Nyh
*/
package
{
import flash.display.*;
import flash.events.*;
import flash.filters.*;
import flash.geom.*;
[SWF(width=465, height=465, frameRate=60, backgroundColor=0xffffff)]
public class FlashTest27 extends Sprite
{
private const MAX_SPARK:int = 20;
private const CIRCLE_D:Number = 360 / MAX_SPARK;
private const CENTER_X:Number = 30;
private const CENTER_Y:Number = 30;
private const COLOR_TRANSFORM:ColorTransform = new ColorTransform(1.2, 1.2, 1.2, 1.0);
private const BLUR_FILTER:BlurFilter = new BlurFilter(2, 2);
private const DEST_POINT:Point = new Point(0, 0);
private const BUFFER_RECT:Rectangle = new Rectangle(0, 0, 465, 465);
private var spark_list:Array = [];
private var line_list:Array = [];
private var buffer:BitmapData = new BitmapData(465, 465, false, 0xffffff);
private var screen:Bitmap = new Bitmap(buffer);
private var old_x_list:Array = [];
private var old_y_list:Array = [];
private var count:int = 0;
public function FlashTest27()
{
var init_x:Number = -100;
var init_y:Number = -100;
for (var i:int = 0; i < MAX_SPARK; i++) {
spark_list.push(new Spark(init_x, init_y, CIRCLE_D));
old_x_list[i] = 0;
old_y_list[i] = 0;
}
addChild(screen);
stage.addEventListener(MouseEvent.MOUSE_DOWN, init);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
private function init(e:Event):void
{
for (var i:int = 0; i < MAX_SPARK; i++) {
spark_list[i].flag = 1;
}
}
private function onEnterFrame(e:Event):void
{
var shape:Shape = new Shape();
var max:int = spark_list.length;
var target:int;
buffer.lock();
buffer.applyFilter(buffer, BUFFER_RECT, DEST_POINT, BLUR_FILTER);
buffer.colorTransform(BUFFER_RECT, COLOR_TRANSFORM);
for (var i:int = 0; i < max; i++) {
spark_list[i].move(stage.mouseX, stage.mouseY, i, count);
}
for (i = 0; i < MAX_SPARK; i++) {
line_list.push(new Line(old_x_list[i], old_y_list[i], spark_list[i].x + CENTER_X, spark_list[i].y + CENTER_Y));
old_x_list[i] = spark_list[i].x + CENTER_X;
old_y_list[i] = spark_list[i].y + CENTER_Y;
}
max = line_list.length;
for (i = 0; i < max; i++) {
if (line_list[i].move() === false) {
line_list.splice(i, 1);
i--;
max--;
continue;
}
shape.graphics.lineStyle(8, 0x330000, 1, false, "normal", CapsStyle.ROUND);
shape.graphics.moveTo(line_list[i].from_x, line_list[i].from_y);
shape.graphics.lineTo(line_list[i].to_x , line_list[i].to_y);
shape.graphics.lineStyle(1, 0x660000);
shape.graphics.moveTo(line_list[i].from_x - 3, line_list[i].from_y - 3);
shape.graphics.lineTo(line_list[i].to_x - 3, line_list[i].to_y - 3);
shape.filters = [BLUR_FILTER];
}
count++;
if (count >= 360) {
count = 0;
}
buffer.draw(shape);
buffer.unlock();
}
}
}
import flash.display.*;
import flash.geom.*;
import flash.filters.*;
const G:Number = 9.8;
const DT:Number = 0.1;
const MAX_T:Number = 18;
const T_RAD:Number = Math.PI / 180;
const BLUR_FILTER:BlurFilter = new BlurFilter(2, 2);
class Spark
{
public var x:Number;
public var y:Number;
public var tmp_x:Number;
public var tmp_y:Number;
public var init_x:Number;
public var init_y:Number;
public var d:Number;
public var flag:uint = 0;
public var x0:Number;
public var y0:Number;
public var vx0:Number;
public var vy0:Number;
public var t:Number;
public var tmp_target_x:Number;
public var tmp_target_y:Number;
public function Spark(x:int, y:int, d:Number)
{
this.d = d;
this.x = x;
this.y = y;
this.tmp_x = x;
this.tmp_y = y;
this.init_x = x;
this.init_y = y;
}
public function move(x:Number, y:Number, i:int, count:int):Boolean
{
var target_x:Number;
var target_y:Number;
if(this.flag == 0) {
target_x = x + Math.random() * 80 * (Math.round(Math.random()) * 2 - 1);
target_y = y + Math.random() * 80 * (Math.round(Math.random()) * 2 - 1);
this.tmp_x += (Math.cos((this.d * i + count * 5) * T_RAD) * 25 + target_x - 30 - this.x) / 100;
this.tmp_y += (Math.sin((this.d * i + count * 5) * T_RAD) * 25 + target_y - 30 - this.y) / 100;
this.tmp_x *= 0.92;
this.tmp_y *= 0.92;
this.x += this.tmp_x;
this.y += this.tmp_y;
} else if(this.flag == 1) {
target_x = -500;
target_y = -500;
this.x0 = this.x;
this.y0 = this.y;
this.vx0 = Math.random() * 10 * (Math.round(Math.random()) * 2 - 1);
this.vy0 = 0;
this.t = 0;
this.tmp_target_x = this.vx0 * MAX_T + this.x0;
this.tmp_target_y = this.vy0 * MAX_T + 0.5 * G * MAX_T * MAX_T + this.y0
this.flag = 2;
} else {
target_x = this.tmp_target_x;
target_y = this.tmp_target_y;
this.t += DT;
this.x = this.vx0 * this.t + this.x0;
this.y = this.vy0 * this.t + 0.5 * G * this.t * this.t + this.y0;
}
if (target_x >= this.x - 50 && target_x <= this.x + 50 && target_y >= this.y - 50 && target_y <= this.y + 50) {
this.flag = 0;
this.t = 0;
}
return true;
}
}
class Line
{
public var life:Number = 40;
public var from_x:Number;
public var from_y:Number;
public var to_x:Number;
public var to_y:Number;
public function Line(old_x:Number, old_y:Number, x:Number, y:Number)
{
this.from_x = x;
this.from_y = y;
this.to_x = old_x;
this.to_y = old_y;
}
public function move():Boolean
{
this.life--;
if (this.life <= 0) {
return false;
}
return true;
}
}