/**
* Copyright mutantleg ( http://wonderfl.net/user/mutantleg )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/gc3N
*/
package {
import flash.display.AVM1Movie;
import flash.events.Event;
import flash.display.Sprite;
public class FlashTest extends Sprite {
public function FlashTest() {
stage.quality="LOW";
initEmpty(30,30);
var i:int;
for(i=0;i<8;i+=1)
{
setTile(4,4+i,1);
setTile(4,16+i,1);
setTile(4+i,4,1);
setTile(8+i,8,1);
setTile(8+i,8+16,1);
setTile(15+i,8+12,1);
setTile(19,8+i,1);
}//nexti
for (i=0;i<160;i+=1)
{ setTile(Math.random()*mw,Math.random()*mh,1); }
var a:xOrb;
for(i=0;i<256;i+=1)
{
var ax:Number; var ay:Number;
ax = Math.random()*mw*cw;
ay = Math.random()*mw*ch;
if (getTile(ax/cw,ay/ch)>0){ continue;}
a = new xOrb();
a.cx=ax;a.cy=ay;
vecOrb.push(a);
if (vecOrb.length > 12){break;}
}//nnexti
stage.addEventListener(Event.ENTER_FRAME, onEnter);
}//ctor
public var curFill:int = 0;
public var vecFill:Vector.<int>;
public var vecCost:Vector.<int>;
public var vecGrid:Vector.<int>;
public var mw:int = 0; public var mh:int = 0;
public var cw:Number = 16; public var ch:Number = 16;
public function initEmpty(aw:int, ah:int):void
{ mw = aw; mh = ah; vecGrid = new Vector.<int>(aw * ah, false);
vecCost = new Vector.<int>(aw * ah, false);
vecFill = new Vector.<int>(aw * ah, false);
}//veccost
public function setTile(ax:int, ay:int, t:int):void
{ if (ax<0||ax>=mw||ay<0||ay>=mh) {return;} vecGrid[ay*mw+ax]=t; }
public function getTile(ax:int, ay:int ):int
{ if (ax<0||ax>=mw||ay<0||ay>=mh) {return 1;} return vecGrid[ay*mw+ax]; }
public function setFill(ax:int, ay:int, t:int):void
{ if (ax<0||ax>=mw||ay<0||ay>=mh) {return;} vecFill[ay*mw+ax]=t; }
public function getFill(ax:int, ay:int ):int
{ if (ax < 0 || ax >= mw || ay < 0 || ay >= mh) { return curFill; }
if (getTile(ax, ay) > 0) { return curFill; }
return vecFill[(ay*mw)+ax]; }
public function setCost(ax:int, ay:int, t:int):void
{ if (ax<0||ax>=mw||ay<0||ay>=mh) {return;} vecCost[ay*mw+ax]=t; }
public function getCost(ax:int, ay:int ):int
{ if (ax<0||ax>=mw||ay<0||ay>=mh) {return -1;} return vecCost[ay*mw+ax]; }
public var vecTile:Vector.<xTile>;
public function fillTile(ax:int, ay:int):void
{
var it:int; var i:int;
var a:xTile; var b:xTile;
if (vecTile == null) { vecTile = new Vector.<xTile>(1024, false);
for (i = 0; i < 1024; i += 1) { vecTile[i] = new xTile(); }
}//endif
a = vecTile[0];
a.cx = ax; a.cy = ay; a.dt = 0;
setFill(a.cx, a.cy, curFill);
it = 1;
curFill += 1;
for (i = 0; i < 1024; i+=1)
{
if (i >= it) { break; }
a = vecTile[i];
setFill(a.cx, a.cy, curFill);
if (getTile(a.cx, a.cy) > 0) { continue; } //hack to prevent error
setCost(a.cx, a.cy, a.dt);
if (getFill(a.cx - 1, a.cy) != curFill)
{ b = vecTile[it]; it += 1; b.cx = a.cx - 1; b.cy = a.cy; b.dt = a.dt + 1;
setFill(a.cx - 1, a.cy, curFill); }
if (getFill(a.cx + 1, a.cy) != curFill)
{ b = vecTile[it]; it += 1; b.cx = a.cx + 1; b.cy = a.cy; b.dt = a.dt + 1;
setFill(a.cx + 1, a.cy, curFill); }
if (getFill(a.cx , a.cy-1) != curFill)
{ b = vecTile[it]; it += 1; b.cx = a.cx ; b.cy = a.cy - 1; b.dt = a.dt + 1;
setFill(a.cx , a.cy-1, curFill); }
if (getFill(a.cx , a.cy+1) != curFill)
{ b = vecTile[it]; it += 1; b.cx = a.cx ; b.cy = a.cy + 1; b.dt = a.dt + 1;
setFill(a.cx , a.cy+1, curFill);}
}//nexti
}//filltile
public function findDir(ax:int, ay:int):Number
{
var t:int; var d:int; var ret:Number;
t = getCost(ax, ay);
ret = 999;
var i:int; var k:int;
for (i = -1; i < 2; i += 1)
{ for (k = -1; k < 2; k += 1)
{
if (k == 0 && i == 0) { continue; }
if (k !=0 && i !=0){continue;}
if (getTile(ax + k, ay + i) > 0) { continue; }
d = getCost(ax + k, ay + i);
if (d >= t) { continue; }
t = d;
ret = Math.atan2((ay + i) - ay, (ax + k) - ax);
} //nextk
}//nexti
return ret;
}//finddir
public var vecOrb:Vector.<xOrb> = new Vector.<xOrb>(0,false);
public function onEnter(e:Event):void
{
graphics.clear();
graphics.lineStyle(2, 0);
fillTile(stage.mouseX/cw,stage.mouseY/ch);
graphics.lineStyle();
var ax:Number; var ay:Number;
var i:int; var k:int; var yt:int; var t:int;
for (i=0;i<mh;i+=1)
{
yt = i * mw;
for (k=0;k<mw;k+=1)
{
t = vecGrid[k + yt];
ax=k*cw;ay=i*ch;
if (t <= 0)
{ graphics.lineStyle();
t=255-(vecCost[k+yt]*8); if (t<0){t=0;}
graphics.beginFill(t, 1); }
else
{
graphics.lineStyle(2, 0);
graphics.beginFill(0xF01010, 1); }
graphics.drawRect(ax,ay,cw,ch);
graphics.endFill();
continue;
}//nextk
}//nexti
graphics.lineStyle(2, 0);
var a:xOrb; var num:int;
num = vecOrb.length;
for(i=0;i<num;i+=1)
{
a = vecOrb[i];
var ta:Number;
ta = findDir(a.cx/cw,a.cy/ch);
a.cx+=Math.cos(ta)*2;
a.cy+=Math.sin(ta)*2;
if (getMag(a.cx-stage.mouseX,a.cy-stage.mouseY)<32)
{ a.cx = Math.random()*mw*cw; a.cy = Math.random()*mw*ch; }
graphics.beginFill(0xFfFfFf, 1);
graphics.drawCircle(a.cx,a.cy, 8);
graphics.endFill();
}//nexti
}//onenter
public function getMag(ax:Number,ay:Number):Number
{ return Math.sqrt(ax*ax+ay*ay); }
}//classend
}
internal class xTile
{
public var cx:int = 0;
public var cy:int = 0;
public var dt:int = 0;
};//xtile
internal class xOrb
{
public var cx:Number = 0;
public var cy:Number = 0;
};//xorb
