## Nathan Hinton
## A number producer that will create numbers when an extractor is placed on it.

PRODUCER_DEBUG = false

class Producer
  attr_reader :x, :y
  # Create producer at a position with the number and rate specified
  # @param x [Integer] X position to start at
  # @param y [Integer] Y position to start at
  # @param number [Integer] The number to produce
  # @param rate [Integer] The speed in numbers per second to produce
  def initialize(x, y, number, rate)
    @x = x
    @y = y
    @number = [number, 1].max
    @rate = (30/rate).to_i
    @image = Gosu.render(30, 30) {
      # Render the item
      Gosu.draw_rect(0, 0, 30, 30, Gosu::Color::RED, 0)
      Gosu::Image.from_text("#{@number}", 20).draw(5, 5, 1)
    }

  end

  # Creates numbers depending on the rate. This is done with knowing that the
  # game is 30 fps so we use that for a counter
  
  # @param delta_mult [Float] The delta multiplier for any actions
  def update(delta_mult)
    
  end

  # Draw the producer. Uses the camera x and y to shift where it should draw
  # @param camera_x [Integer] The camera X position
  # @param camera_y [Integer] The camera Y position
  # @param camera_zoom [Float] The camera zoom
  def draw(camera_x, camera_y, camera_zoom)
    if PRODUCER_DEBUG
      puts "Drawing at #{@x - camera_x}, #{@y - camera_y}"
    end
    @image.draw(camera_zoom * (@x - camera_x), camera_zoom * (@y - camera_y), 0, camera_zoom, camera_zoom)
  end
end