# Nathan Hinton 2 Oct 2025


# This class will be the container for ships. For now they are all the same
class Ship
  def initialize(x_pos, y_pos)
    @position = [x_pos, y_pos]
    @speed = 0.1
  end

  # Called every game tick
  def tick
    if @moving != [0, 0]

    end
  end

  # Move function. This will move a ship. For now you can only move one hop,
  # there is no way to move more than one at the moment. This position should
  # be only *one* spot away from where we are.
  #
  # @param x_pos [Integer] The target x position
  # @param y_pos [Integer] The target y position
  def move(x_pos, y_pos)
    #Validate coordinates:
    if (x_pos + y_pos).odd?
      raise ArgumentError.new('The x, y coordinate for movement must add to be even!')
    end

    # Ensure we are not too far:
    if ((x_pos + y_pos) - @position.sum).abs != 2
      raise ArgumentError.new('The x, y coordinates for moevement must be to an adjcent space!')
    end

  end # Function move

  # Move_direction. Takes a direction and then sets the moving variable equal that direction.
  #
  # @param direction [Integer] A value between (0, 5) that determines the direction (think unit circle)
  def move_direction(direction)
    if (direction < 0 || direction > 5)
      raise ArgumentError.new('When moving using direction based movement, x must be between (0..5)!')
    end
    # This means that the direction can range from 0 to 5 (think of unit circle)
    case direction
    when 0
      @moving = [2, 0] # Right
    when 1
      @moving = [1, 1] # Right up
    when 2
      @moving = [-1, 1] # Left up
    when 3
          @moving = [-2, 0] # Left
    when 4
      @moving = [-1, -1] # Left down
    when 5
      @moving = [1, -1] # Right down
    end
  end # Function move_direction
end