Quizz for BaseCase

defender.js

/*
  This AI simply saves the planet.
*/

function find_closest_rock(rocks){
  var closest = 0
  
  for (var i = 1; i < rocks.length; i++){
    	if (rocks[i].distance < rocks[closest].distance){
    		closest = i
    	}
    }
  
  return rocks[closest]
}

function align_paddle_and_wait(delta, distance){
  var paddle_moves = [];
  var increment = delta < 0 ? -1 : 1 
  var abs_delta = Math.abs(delta)
    
	for (i=0; i < abs_delta; i++){
	    paddle_moves.push(increment)
  }
  for (i=0; i < (distance - abs_delta); i++){
	    paddle_moves.push(0)
  }
    
  return paddle_moves
}

defender.start(
  function notify_player(rocks, paddle_y){ 
    var paddle_moves = []
    var closest_rock = find_closest_rock(rocks)
    
    if (closest_rock.radians){
      var delta_y = - parseInt(Math.tan(closest_rock.radians) * closest_rock.distance)
      paddle_moves = align_paddle_and_wait(delta_y, closest_rock.distance)
    }  	
    
    return paddle_moves;
  }
);