3
我們的客戶已經責成我們（好吧，我一個人......）動態地生成具有不同尺寸框的網格。網格不應該已定義的邊緣，但每個movieclip應具有一定的邊界。我對AS3還很陌生，但除了這種巨大的數學問題之外，幾乎可以處理任何事情。我有100個不同大小的電影剪輯隨機制作一個網格，我將如何優化？
這裏有一個簡單的佈局我正在尋找一個規模要小得多：http://i.stack.imgur.com/Pnikm.png
有任何你們能夠有效地做到這一點？
我幾乎可以模仿這個，但有時候我的盒子會重疊，這是一個瑕疵。如果我開始測試它，直到我用55個以上的動畫片段嘗試它，然後我擔心劇本可能會凍結。
這裏的代碼有效，但有時可能會凍結。我怎樣才能優化這個，使堆棧溢出錯誤不會發生？
package
{
import flash.display.MovieClip;
import flash.display.Sprite;
import flash.utils.getDefinitionByName;
public class box_builder extends MovieClip
{
private var _path:MovieClip;
private var mc_holder:Sprite;
private var box_ar:Array;
private var box_spacing:int = 5;
private var mc_ar:Array = new Array();
private var placed_box_ar:Array = new Array();
private var p_step:int = 0;
public function box_builder()
{
_path = this;
mc_holder = new Sprite();
_path.addChild(mc_holder);
getBoxArray();
startBoxDistribution();
}
private function getBoxArray()
{
box_ar = new Array("box_1","box_2","box_3","box_4","box_3","box_3","box_1","box_2","box_4","box_1","box_1","box_2","box_3","box_4","box_3","box_3","box_1","box_2","box_4","box_1","box_1","box_2","box_3","box_4","box_3","box_3","box_1","box_2","box_4","box_1",
"box_1","box_2","box_3","box_4","box_3","box_3","box_1","box_2","box_4","box_1","box_1","box_2","box_3","box_4","box_3","box_3","box_1","box_2","box_4","box_1","box_1","box_2","box_3","box_4","box_3","box_3","box_1","box_2","box_4","box_1");
}
private function startBoxDistribution():void
{
var i = 0;
var len = box_ar.length;
createBoxes();
}
private function createBoxes():void
{
var len = box_ar.length;
for (var i=0; i<len; i++)
{
var tMC:Class = getDefinitionByName(box_ar[i]) as Class;
var newMc:MovieClip = new tMC() as MovieClip;
mc_ar.push(newMc);
mc_holder.addChild(newMc);
}
executeQueue();
}
private function executeQueue():void
{
if (p_step < box_ar.length)
{
var mc = mc_ar[p_step];
p_step++;
try{ findPlacement(mc); }
catch(e:Error){ trace("ERROR!",e) };
}
else centerAll();
}
private function findPlacement(mc:MovieClip,prev_seed:int = 0):void
{
var mc_len:int = mc_ar.length;
var rN:int = randomNumber(0,mc_len - 2);
if (prev_seed == 0)
{
rN = rN;
}
else if (prev_seed == mc_len-1)
{
rN = 0;
}
else
{
rN = prev_seed + 1;
}
trace(rN,mc);
var seed = mc_ar[rN];
var d = randomNumber(1,8);
if (d == 1)
{
mc.x = seed.x - seed.width - box_spacing;
mc.y = seed.y - seed.height - box_spacing;
}
else if (d==2)
{
mc.x = seed.x + seed.width/2 - mc.width/2;
mc.y = seed.y - seed.height - box_spacing;
}
else if (d==3)
{
mc.x = seed.x + seed.width + box_spacing;
mc.y = seed.y - seed.height - box_spacing;
}
else if (d==4)
{
mc.x = seed.x + seed.width + box_spacing;
mc.y = seed.y + seed.height/2 - mc.width/2;
}
else if (d==5)
{
mc.x = seed.x + seed.width + box_spacing;
mc.y = seed.y + seed.height + box_spacing;
}
else if (d==6)
{
mc.x = seed.x + seed.width/2 - mc.width/2;
mc.y = seed.y + seed.height + box_spacing;
}
else if (d==7)
{
mc.x = seed.x - mc.width - box_spacing;
mc.y = seed.y - mc.height - box_spacing;
}
else if (d==8)
{
mc.x = seed.x - mc.width - box_spacing;
mc.y = seed.y + seed.height/2 - mc.width/2;
}
var isGood:int = 0;
for (var c=0; c<placed_box_ar.length; c++)
{
if (mc.hitTestObject(placed_box_ar[c]) && mc != placed_box_ar[c])
{
trace("overlap, retrying");
findPlacement(mc,rN);//Retry placing this box.
}
else
{
isGood++;
}
}
if (isGood == placed_box_ar.length)
{
placed_box_ar.push(mc);
executeQueue();//Moves to next box to be placed.
}
}
private function centerAll():void
{
_path.addChild(mc_holder);
mc_holder.x = _path.stage.stageWidth/2;
mc_holder.y = _path.stage.stageHeight/2;
}
private function randomNumber(low:Number=0, high:Number=1):Number
{
return Math.floor(Math.random() * (1+high-low)) + low;
}
}
}