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package Scripts
{
import flash.display.MovieClip;
import flash.display.Stage;
import flash.events.Event;
public class Enemy extends MovieClip
{
private var stageRef:Stage;
private var GameMap:Array = new Array();
private var bEnemyLoaded:Boolean;
private var bActive:Boolean;
// Movement vars
public var bMoving:Boolean;
public var iDir:int;
//private var bBrake:Boolean;
private var mUp:int = 1;
private var mDown:int = 2;
private var mRight:int = 3;
private var mLeft:int = 4;
private var mNone:int = 0;
// Amoeba pos
public var iAmPosX;
public var iAmPosY;
public function Enemy()
{
bEnemyLoaded = false;
bActive = false;
}
public function IsReady():Boolean
{ return bEnemyLoaded;}
public function Activate():void
{bActive = true;}
public function CreateEnemy(stageRef:Stage)
{
trace("Enemy: Constructor");
this.stageRef = stageRef;
bMoving = false;
iDir= mNone;
iAmPosX = 0;
iAmPosY = 0;
this.name="nEnemy";
addEventListener(Event.ENTER_FRAME, loop, false, 0, true);
bEnemyLoaded = true;
}
public function ScoutAmoebaAt(ax:int, ay:int)
{
iAmPosX = ax;
iAmPosY = ay;
}
public function SetMap(gamemap:Array)
{
this.GameMap = gamemap;
}
public function loop(e:Event) : void
{
if(bActive)
{
MoveInput();
ColisionDetection();
Move();
}
}
private function ColisionDetection()
{
if(bMoving)
{
// the next cell
var nextCell:int
var nextX:int;
var nextY:int;
//trace("----:)---:(----")
// trace("- Pos: x: "+ x + " y: "+ y );
// in the direction i'm going
switch(iDir)
{
case mLeft: nextX=(x-5)/25; nextY = y/25; /*trace("- Est: x: "+ (x-5) + " y: "+ y ); */break;
case mRight: nextX=(x+5+25)/25; nextY = y/25; /*trace("- Est: x: "+ (x+5+25) + " y: "+ y ); */break;
case mUp: nextX= x/25; nextY = (y-5)/25; /*trace("- Est: x: "+ x + " y: "+ (y-5) ); */break;
case mDown: nextX= x/25; nextY = (y+5+25)/25; /*trace("- Est: x: "+ x + " y: "+ (y+5+25) ); */break;
default: trace("Error: ColDec wrong Enemy dir: " + iDir); break;
}
//trace("- Dir: "+ GetDir() +" at: " + nextX + ", " + nextY);
// Safety correction:
if(nextX < 0) {trace("Error: ColDect trying to go, x:" + nextX); nextX=0;}
if(nextX > 21) {trace("Error: ColDect trying to go, x:" + nextX); nextX=21;}
if(nextY < 0) {trace("Error: ColDect trying to go, y:" + nextY); nextY=0;}
if(nextY > 15) {trace("Error: ColDect trying to go, y:" + nextY); nextY=21;}
nextCell= GameMap[nextY][nextX];
//trace("- Next Cell Val: " + nextCell );
// is not passable
if(nextCell == 0 || nextCell == 1 ||nextCell == 2 ||nextCell == 3 ||nextCell == 4 )
{
//trace("Stop");
// stop when i reach it
bMoving = false;
// Fix the extra pixels
switch(iDir)
{
case mLeft: x=(nextX+1)*25; break;
case mRight: x=(nextX-1)*25; break;
case mUp: y=(nextY+1)*25; break;
case mDown: y=(nextY-1)*25; break;
default: trace("Error: ColDec wrong Enemy dir: " + iDir); break;
}
iDir=mNone;
}
}
}
private function MoveInput():void
{
// Getting Directions
if(!bMoving)
{
var tdirH:int;
var tdirV:int;
var tdirHH:int;
var tdirVV:int;
bMoving = true;
var newup:int =Math.random()*10+1;
var newdo:int =Math.random()*10+1;
var newri:int =Math.random()*10+1;
var newle:int =Math.random()*10+1;
if( iAmPosX < x ) newle+=4;
else if( iAmPosX > x ) newri+=4;
if( iAmPosY < y ) newdo+=4;
else if( iAmPosY > y ) newup+=4;
if(newdo > newup){ tdirV = newdo; tdirVV = mDown;}
else { tdirV = newup; tdirVV = mUp;}
if(newri > newle){ tdirH = newri; tdirHH =mRight;}
else { tdirH = newle; tdirHH=mLeft;}
if( tdirH > tdirV ) iDir = tdirHH; else iDir = tdirVV;
//trace(GetDir());
}
}
private function Move():void
{
// Locomotor action!
if(bMoving)
{
switch(iDir)
{
case mLeft: x -= 5; break;
case mRight: x += 5; break;
case mUp: y -= 5; break;
case mDown: y += 5; break;
default: trace("Error: wrong Enemy dir: " + iDir); break;
}
}
}
public function removeSelf() : void
{
trace("Enemy: Destructor");
removeEventListener(Event.ENTER_FRAME, loop);
//removeEventListener(Event.EXIT_FRAME, removeSelf);
if (stageRef.contains(this)) stageRef.removeChild(this);
}
public function GetDir():String
{
if(iDir==mUp) return "Up";
else if(iDir==mDown) return "Down";
else if(iDir==mRight) return "Right";
else if(iDir==mLeft) return "Left";
else if(iDir==mNone) return "Stopped";
else return ("Unknown: "+ iDir);
}
}
} |
