//Cloned by Akash Barik to update it for A* algorithm.
// =================================================================================================
// Sample Mind for more complex 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
const show3d = 0;
AB.backgroundMusic( backMusic );
AB.mind.getAction = function ( x ) // x is an array of [ ai, aj, ei, ej ]
{
var ai = x[0];
var aj = x[1];
var ei = x[2];
var ej = x[3];
// if strictly move away, will get stuck at wall, so introduce randomness
if ( ej < aj ) return ( AB.randomPick ( ACTION_UP, AB.randomPick(ACTION_RIGHT,ACTION_LEFT) ));
if ( ej > aj ) return ( AB.randomPick ( ACTION_DOWN, AB.randomPick(ACTION_RIGHT,ACTION_LEFT) ));
if ( ei < ai ) return ( AB.randomPick ( ACTION_RIGHT, AB.randomPick(ACTION_UP,ACTION_DOWN) ));
if ( ei > ai ) return ( AB.randomPick ( ACTION_LEFT, AB.randomPick(ACTION_UP,ACTION_DOWN) ));
return ( AB.randomIntAtoB (0,3) );
};