/*
* Flash初作品です。
* 以前作った流砂のシミュレーションをASで実装してみるテスト。
* 右クリックメニューから描くタイプを選べます。
*/
package {
import flash.ui.*;
import fl.controls.*;
import flash.text.*;
import flash.geom.*;
import flash.events.*;
import flash.display.*;
[SWF(frameRate = "50")]
public class Sand extends Sprite {
private const WIDTH:int = 465;
private const HEIGHT:int = 465;
private const BACK:uint = 0x000000;
private const WALL:uint = 0x333333;
private const SAND:uint = 0xff0000;
private var draw:uint;
private var prevMouseX:int;
private var prevMouseY:int;
private var world:BitmapData;
private var bitmap:Bitmap;
private var count:int;
private var mousePressed:Boolean;
private var sandBitmap:BitmapData;
private var randX:uint;
private var randY:uint;
private var randZ:uint;
private var t:uint;
public function Sand() {
initialize();
}
private function initialize():void {
randX = 123456789;
randY = 987654321;
randZ = 193865735;
var sand:ContextMenuItem = new ContextMenuItem("Sand");
sand.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, function():void {
draw = SAND;
});
var wall:ContextMenuItem = new ContextMenuItem("Wall");
wall.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, function():void {
draw = WALL;
});
var erase:ContextMenuItem = new ContextMenuItem("Erase");
erase.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, function():void {
draw = BACK;
});
sandBitmap = new BitmapData(2, 2);
sandBitmap.setPixel(0, 0, 0x00ffff);
sandBitmap.setPixel(1, 0, 0xffffff);
sandBitmap.setPixel(0, 1, 0x0055ff);
sandBitmap.setPixel(1, 1, 0x00ff55);
contextMenu = new ContextMenu();
contextMenu.hideBuiltInItems();
contextMenu.customItems = [sand, wall, erase];
draw = SAND;
count = 0;
world = new BitmapData(WIDTH, HEIGHT, false, BACK);
world.draw(stage);
bitmap = new Bitmap(world);
addChild(bitmap);
stage.addEventListener(MouseEvent.MOUSE_DOWN,
function():void {
mousePressed = true;
});
stage.addEventListener(MouseEvent.MOUSE_UP,
function():void {
mousePressed = false;
});
addEventListener(Event.ENTER_FRAME, frame);
stage.quality = StageQuality.LOW;
}
private function frame(e:Event):void {
//TODO
var s:Sprite = new Sprite();
world.lock();
if(mousePressed) {
if(draw == SAND) {
s.graphics.beginBitmapFill(sandBitmap);
s.graphics.drawEllipse(mouseX - 3, mouseY - 3, 6, 6);
s.graphics.endFill();
s.graphics.lineStyle(6);
s.graphics.lineBitmapStyle(sandBitmap);
s.graphics.moveTo(prevMouseX, prevMouseY);
s.graphics.lineTo(mouseX, mouseY);
world.draw(s);
} else {
s.graphics.beginFill(draw);
s.graphics.drawEllipse(mouseX - 3, mouseY - 3, 6, 6);
s.graphics.endFill();
s.graphics.lineStyle(6, draw);
s.graphics.moveTo(prevMouseX, prevMouseY);
s.graphics.lineTo(mouseX, mouseY);
world.draw(s);
}
}
world.fillRect(new Rectangle(0, 0, WIDTH, 70), BACK);
world.fillRect(new Rectangle(0, HEIGHT - 70, WIDTH, 70), BACK);
world.fillRect(new Rectangle(0, 70, 70, HEIGHT - 140), BACK);
world.fillRect(new Rectangle(WIDTH - 70, 70, 70, HEIGHT - 140), BACK);
prevMouseX = mouseX;
prevMouseY = mouseY;
var i:int;
var j:int;
var pixel:uint;
if(count % 2 == 0)
for(j = HEIGHT - 71; j >= 70; j--) {
for(i = 70; i < WIDTH - 70; i++) {
pixel = world.getPixel(i, j);
if(pixel != BACK && pixel != WALL) {
t = randX ^ (randX << 11);
randX = randY;
randY = randZ;
if((randZ = (randZ ^ (randZ >> 19)) ^ (t ^ (t >> 8))) % 20 != 0)
if (world.getPixel(i, j + 1) == BACK) {
world.setPixel(i, j + 1, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i + 1, j + 1) == BACK) {
world.setPixel(i + 1, j + 1, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i - 1, j + 1) == BACK) {
world.setPixel(i - 1, j + 1, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i + 1, j) == BACK) {
world.setPixel(i + 1, j, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i - 1, j) == BACK) {
world.setPixel(i - 1, j, pixel);
world.setPixel(i, j, BACK);
}
}
}
}
else
for(j = HEIGHT - 71; j >= 70; j--) {
for(i = WIDTH - 71; i >= 70; i--) {
pixel = world.getPixel(i, j);
if(pixel != BACK && pixel != WALL) {
t = randX ^ (randX << 11);
randX = randY;
randY = randZ;
if((randZ = (randZ ^ (randZ >> 19)) ^ (t ^ (t >> 8))) % 20 != 0)
if (world.getPixel(i, j + 1) == BACK) {
world.setPixel(i, j + 1, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i - 1, j + 1) == BACK) {
world.setPixel(i - 1, j + 1, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i + 1, j + 1) == BACK) {
world.setPixel(i + 1, j + 1, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i - 1, j) == BACK) {
world.setPixel(i - 1, j, pixel);
world.setPixel(i, j, BACK);
} else if (world.getPixel(i + 1, j) == BACK) {
world.setPixel(i + 1, j, pixel);
world.setPixel(i, j, BACK);
}
}
}
}
world.fillRect(new Rectangle(0, 0, WIDTH, 70), 0x808080);
world.fillRect(new Rectangle(0, HEIGHT - 70, WIDTH, 70), 0x808080);
world.fillRect(new Rectangle(0, 70, 70, HEIGHT - 140), 0x808080);
world.fillRect(new Rectangle(WIDTH - 70, 70, 70, HEIGHT - 140), 0x808080);
world.unlock();
count = (count + 1) % 2;
}
}
}
