// Cloned by Eoghan Murphy on 5 Nov 2018 from Mind "Simple Mind" by Starter user 
// Please leave this clone trail here.
 



// ==== Starter Mind ===============================================================================================
// (c) Ancient Brain Ltd. All rights reserved.
// This code is only for use on the Ancient Brain site.
// This code may be freely copied and edited by anyone on the Ancient Brain site.
// This code may not be copied, re-published or used on any other website.
// To include a run of this code on another website, see the "Embed code" links provided on the Ancient Brain site.
// ==================================================================================================================



// =================================================================================================
// Sample Mind for simple starter World  
// =================================================================================================

// World tells us agent position and enemy position
// World does not tell us of existence of walls
// if return invalid move (not empty square) World just ignores it and we miss a turn 

// 0 -x
// 1 +x
// 2 +y
// 3 -y

 


function Mind() 
{ 
    
    var enemyX;
    var enemyY;
    var lastMove = 0;
    var lastPosition = 0;
    
    var forbiddenSpots = Set();
    
    var bestIndex = -1;
    
    var myX;
    var myY;
    
	this.newRun = function()                  
	{
	};


	this.getAction = function ( x )		 
	{ 
	  //console.log(x);
	  myX = x[0];
	  myY = x[1];
	  enemyX = x[2];
	  enemyY = x[3];
	  
	  var possible = newMoves(myX, myY);
	  var bestMove = [enemyX, enemyY];
	  for(i = 0; i < possible.length; i++){
	      //console.log(possible[i]);
	      if(value(possible[i], enemyX, enemyY) > value(bestMove, enemyX, enemyY) && possible[i] != lastMove && !forbiddenSpots.has(possible[i])){
	          bestMove = possible[i];
	          bestIndex = i;
	      }
	  }
	  //console.log(bestMove);
	  console.log("-----");
      //console.log(forbiddenSpots);
	  console.log("-----");
	  console.log("this="+ [myX, myY] + " last=" +  lastPosition);
	  if(myX == lastPosition[0] && myY == lastPosition[1]){
	      forbiddenSpots.add(lastMove);
	  }
	  lastPosition = [myX, myY];
	  
	  lastMove = possible[bestIndex];
	  
	  return(bestIndex);
	};

		 
	this.endRun = function()                 
	{
	};
	
	

}

function newMoves(x,y){
    
    var possiblemoves = []
    

    possiblemoves.push([x-1,y]);
    possiblemoves.push([x+1,y]);
    possiblemoves.push([x,y+1]);
    possiblemoves.push([x,y-1]);

    return possiblemoves;
    
}


function value(coords, eX, eY){
    var val = Math.pow((coords[0] - eX), 2) + Math.pow((coords[1] - eY), 2);
    //console.log(coords, (coords[1] - eY), coords[1], eY, val);
    val =  Math.sqrt(val);
    //console.log(val);
    return val;
}