Enemy

package;
import flixel.FlxSprite;
import flixel.util.FlxColor;
import flixel.FlxG;
import flixel.util.FlxAngle;
import flixel.FlxObject;
import flixel.util.FlxPoint;
import flixel.util.FlxRandom;
import flixel.tile.FlxTilemap;
import flixel.util.FlxPath;
import flixel.util.FlxVelocity;

class Enemy extends FlxSprite
{
    public var speed:Float = 200;
    public var etype(default,null):Int;
    public var seesPlayer:Bool = false;
    public var playerPos(default,null):FlxPoint;
    public var animState:Int;
    public var pathPoints:Array<FlxPoint>;
    public var path:FlxPath;
    //privates
    private var _brain:FSM;
    private var _idleTmr:Float;
    private var _moveDir:Float;
    private var _newPos:FlxPoint;
    private var _map:FlxTilemap;
    private var _tWidth:Float;
    private var _tHeight:Float;
    private var _myPos:FlxPoint;
    private var _player:Player;

    public function new(X:Float=0,Y:Float=0,EType:Int,PS:PlayState,M:FlxTilemap)
    {
        //Grab variables from function
        super(X,Y);
        etype = EType;
        PS.setEnemyAnim(this,EType,x,y);
        _map = M;
        _player = PS._player;
        //Grab sprite
        loadGraphic('assets/images/enemy-' + Std.string(etype) + '.png', true, 64,64);
        //Set some drag
        drag.x = drag.y = 10;
        //Make a hitbox maybe
        offset.set(0,48);
        setSize(64,16);
        //Probably some ai stuff
        _brain = new FSM(idle);
        _idleTmr = 0;
        playerPos = FlxPoint.get();
        _newPos = playerPos;
        path = new FlxPath();
    }

    //An idol
    public function idle():Void
    {
        if (seesPlayer)
        {
            _brain.activeState = chase;
        }
        else if (_idleTmr <= 0)
        {
            if (FlxRandom.chanceRoll(1))
            {
                _moveDir = -1;
                velocity.x = velocity.y = 0;
            }
            else
            {
                _moveDir = FlxRandom.intRanged(0,8)*45;
                FlxAngle.rotatePoint(speed * .5,0,0,0,_moveDir,velocity);
            }
            _idleTmr = FlxRandom.intRanged(1,4);
        }
        else
        {
            _idleTmr -= FlxG.elapsed;
        }
    }
    //An exite chase thingy
    public function chase():Void
    {

        if(!seesPlayer){
            _brain.activeState = idle;
            path.cancel();
        }
        else
        {
            path.start(this, pathPoints, speed);
            speed = FlxRandom.intRanged(200,280);

            //FlxVelocity.moveTowardsPoint(this, playerPos, Std.int(speed));

        }

    }

    private function updateAnim():Void
    {
        if ((velocity.x != 0 || velocity.y !=0))
        {
            //Get Current Direction...
            if (Math.abs(velocity.x) > Math.abs(velocity.y))
            {
                if (velocity.x < 0)
                    animState = 1;
                else
                    animState = 4;
            }
            else
            {
                if (velocity.y < 0)
                    animState = 2;
                else
                    animState = 3;
            }
        }
        else
        {
            animState = 0;
        }
    }

    //override an update
    override public function update():Void
    {
        this.visible = false;
        _brain.update();
        updateAnim();
        super.update();
    }
}