package { import flash.display.*; import flash.events.*; import flash.net.*; import flash.system.*; // カーソルキーで操作できます。 [SWF(width="465", height="465", frameRate="60")] public class Darius extends Sprite { public static const WIDTH:int = 233; public static const HEIGHT:int = 233; private var buffer:BitmapData; private var screen:Bitmap; private var loader:Loader; private var fish:Fish; private var bg:BG; function Darius() { Wonderfl.capture_delay(3); loader = new Loader(); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoadComplete); loader.load(new URLRequest("http://assets.wonderfl.net/images/related_images/2/2c/2c65/2c65f2686591075d582ac89a915d8819975e8155"), new LoaderContext(true)); } private function onLoadComplete(e:Event):void { loader.contentLoaderInfo.removeEventListener(Event.COMPLETE, onLoadComplete); buffer = new BitmapData(WIDTH, HEIGHT, false, 0); screen = new Bitmap(buffer); screen.scaleX = screen.scaleY = 2; addChild(screen); fish = new Fish(Bitmap(loader.content).bitmapData); bg = new BG(); Key.setListener(stage); addEventListener(Event.ENTER_FRAME, onEnterFrame); } private function onEnterFrame(e:Event):void { buffer.fillRect(buffer.rect, 0x181818); bg.draw(buffer); if(Key.isDown(40)) {fish.speed -= 0.05; fish.wait = 60*3;} if(Key.isDown(38)) {fish.speed += 0.05; fish.wait = 60*3;} if(Key.isDown(37)) {fish.head.dir += 4; fish.wait = 60*3;} if(Key.isDown(39)) {fish.head.dir -= 4; fish.wait = 60*3;} fish.main(); fish.draw(buffer); } } } import flash.display.*; import flash.geom.*; import flash.events.*; class Fish { private var parts:Vector.<Segment> = new Vector.<Segment>(7, true); private var dirlog:Vector.<int> = new Vector.<int>(); public var head:Segment; public var speed:Number = 4; public var dest:Number = 128; public var wait:int = 90; function Fish(bmp:BitmapData) { //反転画像の生成 var temp:BitmapData = new BitmapData(Segment.WIDTH*16, Segment.HEIGHT*7, true, 0); var matrix:Matrix = new Matrix(); temp.copyPixels(bmp, bmp.rect, new Point(0, 0)); matrix.scale(-1, 1); matrix.translate(Segment.WIDTH*17, 0); temp.draw(bmp, matrix, null, null, new Rectangle(Segment.WIDTH*9, 0, Segment.WIDTH*7, Segment.HEIGHT*7)); for(var i:int = 0; i < 7; i++) { var segment:Segment = new Segment(temp, i); parts[i] = segment; } //パーツ毎の距離 parts[0].size = 44; parts[1].size = 32; parts[2].size = 28; parts[3].size = 22; parts[4].size = 24; parts[5].size = 24; //初期位置 head = parts[0]; head.x = Darius.WIDTH/2 + 80; head.y = 8; head.z = Segment.D; head.dir = 128; for(i = 0; i < 7*3+5; i++) { dirlog.unshift(head.dir); } } public function main():void { head.x += MathEx.getVectorX(head.dir, speed); head.z += MathEx.getVectorY(head.dir, speed); head.x = MathEx.limit(-Darius.WIDTH+80, head.x, Darius.WIDTH-80); head.z = MathEx.limit(Segment.D, head.z, Segment.D+600); if(wait > 0) { wait--; } else { if(Math.random() < 0.03) {dest = Math.floor(Math.random() * 16) * 16;} if(MathEx.getBearing(head.dir, dest) < -2) { head.dir += 4; } else if(MathEx.getBearing(head.dir, dest) > 2) { head.dir -= 4; } } if(head.dir >= 256) {head.dir -= 256;} if(head.dir < 0) {head.dir += 256;} dirlog.pop(); dirlog.unshift(head.dir); //体節の処理 for(var i:int = 1; i < parts.length; i++) { var segment:Segment = parts[i]; var front:Segment = parts[i-1]; segment.x = front.x + MathEx.getVectorX(front.dir, -front.size); segment.z = front.z + MathEx.getVectorY(front.dir, -front.size)+0.1; segment.y = front.y; segment.dir = dirlog[i*3+5]; } } public function draw(screen:BitmapData):void { var temp:Vector.<Segment> = parts.slice(); //配列のコピー temp.sort(function(x:Segment, y:Segment):Number {return x.z <= y.z ? 1 : -1;}); //Zソート for(var i:int = 0; i < temp.length; i++) { temp[i].draw(screen); } } } class Segment { private var frames:Vector.<BitmapData> = new Vector.<BitmapData>(16, true); private var matrix:Matrix = new Matrix(); public static const WIDTH:int = 128; public static const HEIGHT:int = 160; public static const D:int = 400; private var cx:int = WIDTH/2; private var cy:int = HEIGHT/2 + 4; public var x:Number = 0; public var y:Number = 0; public var z:Number = 0; public var dir:int = 0; public var size:int = 30; function Segment(bmp:BitmapData, num:int) { for(var i:int = 0; i < 16; i++) { var frame:BitmapData = new BitmapData(WIDTH, HEIGHT, true, 0); frame.copyPixels(bmp, new Rectangle(i * WIDTH, num * HEIGHT, WIDTH, HEIGHT), new Point(0, 0)); frames[i] = frame; } } public function draw(screen:BitmapData):void { matrix.identity(); matrix.translate(-cx, -cy); matrix.scale(D / z, D / z); matrix.translate((D * x / z) + Darius.WIDTH/2, (D * y / z) + Darius.HEIGHT/2); screen.draw(frames[Math.floor((dir+8) / 16+12) % 16], matrix); } } class BG { private var list:Vector.<Star> = new Vector.<Star>(400, true) function BG() { for(var i:int = 0; i < list.length; i++) { list[i] = new Star(); } } public function draw(screen:BitmapData):void { for each(var star:Star in list) { star.draw(screen); } } } class Star { public var x:Number; public var y:Number; public var speed:Number; public var color:uint; function Star() { x = Math.random()*Darius.WIDTH; shuffle(); } public function shuffle():void { y = Math.random()*Darius.HEIGHT; speed = Math.random()+0.1; color = MathEx.rand_int(0, 0xC0)*0x10000 + MathEx.rand_int(0, 0xC0)*0x100 + MathEx.rand_int(0, 0xC0); } public function draw(screen:BitmapData):void { x -= speed; if(x < 0) { x = Darius.WIDTH; shuffle(); } screen.setPixel(x, y, color); } } class MathEx { public static function limit(min:Number, target:Number, max:Number):Number {return Math.max(min, Math.min(target, max));} public static function rand_int(min:int, max:int):int {return Math.floor(Math.random()*(max-min+1)+min);} public static function getVectorX(dir:Number, speed:Number):Number {return Math.cos(Math.PI/128*dir)*speed;} public static function getVectorY(dir:Number, speed:Number):Number {return Math.sin(Math.PI/128*dir)*speed;} public static function getBearing(dir1:Number, dir2:Number):Number { var d1:Number = normalizeAngle(dir1); var d2:Number = normalizeAngle(dir2); if(d2-128 > d1) {d1 += 256;} if(d2+128 < d1) {d1 -= 256;} return d1-d2; } public static function normalizeAngle(dir:Number):Number { if (dir < -128) { dir = 256 - (-dir % 256); } dir = (dir + 128) % 256 - 128; return dir; } } class Key { private static var down:Vector.<Boolean> = new Vector.<Boolean>(256, true); public static function setListener(target:InteractiveObject):void { target.stage.focus = target; target.addEventListener(KeyboardEvent.KEY_DOWN, function (event:KeyboardEvent):void {down[event.keyCode] = true;}); target.addEventListener(KeyboardEvent.KEY_UP, function (event:KeyboardEvent):void {down[event.keyCode] = false;}); target.addEventListener(FocusEvent.FOCUS_OUT, onFocusOut); } private static function onFocusOut(event:FocusEvent):void { event.currentTarget.stage.focus = event.currentTarget; //キーを押しながらフォーカスが外れると押しっぱなしになる現象の対策 for(var i:int = 0; i < down.length; i++) {down[i] = false;} } public static function isDown(keycode:int):Boolean { return down[keycode]; } }