# frozen_string_literal: true

module Ruby2D
  module Camera
    # Wraps existing variables as well as adding new methods
    # so that it can be handled by the Camera Module
    # TODO: note that text could not be resized at the current iteration
    # of Ruby2D so the math needs to be changed compensate for this.
    # When Ruby2D gets updated to allow text resizing the math will need
    # to be corrected again(see image_wrapper.rb for reference, that has
    # math that allows for resizing)
    class Text < Ruby2D::Text
      @center = false

      # Recalculates real coordiantes
      # Use after changing variables
      def _draw
        angle = Camera.angle * (Math::PI / 180)
        half_width = Window.width * 0.5
        half_height = Window.height * 0.5
        if center
          offset_y = y + (Camera.zoom / 2)
          offset_x = x + (Camera.zoom / 2)
        else
          offset_x = x + (width / Camera.zoom / 2)
          offset_y = y + (height / Camera.zoom / 2)
        end
        temp_x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
          * Camera.zoom + half_width - (width / 2)
        temp_y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
          * Camera.zoom + half_height - (height / 2)
        temp_rotate = rotate + Camera.angle
        # Workaround for resizing text
        temp_size = size# * Camera.zoom
        self.size *= Camera.zoom
        self.draw(x: temp_x, y: temp_y,
                  rotate: temp_rotate,
                  color: self.color)
        self.size = temp_size
      end

      def initialize(opts = {})
        super(opts)
        Ruby2D::Camera << self
        self.remove
      end
    end
  end
end