function _figthEnemy(address _player)
        internal
    {
        uint256 _drones = drones_.length;
        
        
        uint256 _drone = uint256(keccak256(abi.encodePacked(block.timestamp, block.difficulty, _player, _drones))) % 289;
        
		
		if (_drone == 42) {
			conquesting_ = false;
			conquested_ = true;
			
			emit onEnemyDestroyed(_player, now);
		}
    }