A work in progress level objective dialog for Helicorps

level_objective_widget.rb

class LevelObjectiveWidget
  #
  # Initialize Widget
  #
  def initialize
    @finished = false
  end

  #
  # Process input from args
  #
  def handle_input(args)
  end

  #
  # Update logic (perform any time based logic that doesn't require rendering)
  #
  def track(args)
  end

  #
  # Lazy implementation of word wrapping for our render pipeline
  #
  def render_text(args, pipeline, rect, text, font_size, font)
    work = ""
    len = text.length
    font_h = args.gtk.calcstringbox(text, font_size, font).y
    y_offset = 0
    x_offset = 8
    i = 0

    while i < len
      x_len = args.gtk.calcstringbox(work + text[i], font_size, font).x

      if (x_len >= rect.w || text[i] == "\n")
        pipeline << {
          x: rect.x + x_offset, y: (rect.y + rect.h) - y_offset,
          text: work, size_enum: font_size,
          alignment_enum: 0, vertical_alignment_enum: 2,
          font: font,
          r: 0, g: 255, b: 0,
        }.label

        work = text[i]
        y_offset += font_h
      else
        work += text[i]
      end
      i += 1
    end

    if (work.length > 0)
      pipeline << {
        x: rect.x + x_offset, y: (rect.y + rect.h) - y_offset,
        text: work, size_enum: font_size,
        alignment_enum: 0, vertical_alignment_enum: 2,
        font: font,
        r: 0, g: 255, b: 0,
      }.label
    end
  end

  #
  # Core render functionality (layout logic embedded in here currently)
  #
  def render(args, pipeline)
    # layout into 24x12 grid
    rect = args.layout.rect(row: 2, col: 5, w: 14, h: 9.25, dx: 0, dy: 0) # outer border
    pipeline << { x: rect[:x], y: rect[:y], w: rect[:w], h: rect[:h], r: 191, g: 190, b: 189 }.solid
    pipeline << { x: rect[:x], y: rect[:y], w: rect[:w], h: rect[:h], r: 0, g: 0, b: 255 }.border

    rect = args.layout.rect(row: 1.25, col: 9, w: 6, h: 1.5, dx: 0, dy: 0) # MISSION
    pipeline << { x: rect[:x], y: rect[:y], w: rect[:w], h: rect[:h], r: 191, g: 190, b: 189 }.solid
    pipeline << { x: rect.x, y: rect.y, w: rect.w, h: rect.h, r: 0, g: 0, b: 255 }.border
    pipeline << {
      x: rect.x + (rect.w / 2), y: rect.y + (rect.h / 1.8),
      text: "MISSION", size_enum: args.layout.font_size_sm,
      alignment_enum: 1, vertical_alignment_enum: 1,
      font: "/fonts/PixeloidSans.ttf",
    }.label

    rect = args.layout.rect(row: 3, col: 6, w: 6, h: 3, dx: 0, dy: 0) # INTEL
    pipeline << { x: rect[:x], y: rect[:y], w: rect[:w], h: rect[:h], r: 0, g: 0, b: 0 }.solid
    pipeline << { **rect, r: 0, g: 0, b: 255 }.border
    pipeline << {
      x: rect.x, y: rect.y + rect.h,
      text: " INTEL", size_enum: 1,
      alignment_enum: 0, vertical_alignment_enum: 2,
      font: "/fonts/PixeloidSans.ttf",
      r: 0, g: 255, b: 0,
    }.label

    rect = args.layout.rect(row: 6, col: 6, w: 6, h: 4, dx: 0, dy: 0) # ENEMIES
    pipeline << { x: rect[:x], y: rect[:y], w: rect[:w], h: rect[:h], r: 0, g: 0, b: 0 }.solid
    pipeline << { **rect, r: 0, g: 0, b: 255 }.border
    pipeline << {
      x: rect.x, y: rect.y + rect.h,
      text: " ENEMIES", size_enum: 1,
      alignment_enum: 0, vertical_alignment_enum: 2,
      font: "/fonts/PixeloidSans.ttf",
      r: 0, g: 255, b: 0,
    }.label

    rect = args.layout.rect(row: 3, col: 12, w: 6, h: 7, dx: 0, dy: 0) # OBJECTIVE
    pipeline << { x: rect[:x], y: rect[:y], w: rect[:w], h: rect[:h], r: 0, g: 0, b: 0 }.solid
    pipeline << { **rect, r: 0, g: 0, b: 255 }.border
    objective_text = "OBJECTIVE:\n\nHELIpost Gamma-II has\nreported UNREST.\n\nCITIZENS are under threat from MECHs:\n\n● Transport CITIZENS to\n   safety.\n● Defeat MECHs."
    render_text(args, pipeline, rect, objective_text, 1, "/fonts/PixeloidSans.ttf")

    rect = args.layout.rect(row: 10, col: 9, w: 3, h: 1, dx: 0, dy: 0) # BACK
    pipeline << { **rect, r: 0, g: 0, b: 255 }.border
    pipeline << {
      x: rect.x + (rect.w / 2), y: rect.y + (rect.h / 2),
      text: "< BACK", size_enum: 1,
      alignment_enum: 1, vertical_alignment_enum: 1,
      font: "/fonts/PixeloidSans.ttf",
    }.label

    rect = args.layout.rect(row: 10, col: 12, w: 3, h: 1, dx: 0, dy: 0) # NEXT
    pipeline << { **rect, r: 0, g: 0, b: 255 }.border
    pipeline << {
      x: rect.x + (rect.w / 2), y: rect.y + (rect.h / 2),
      text: "NEXT > ", size_enum: 1,
      alignment_enum: 1, vertical_alignment_enum: 1,
      font: "/fonts/PixeloidSans.ttf",
    }.label
  end

  #
  # Return true when this widget is done (parent can clean up afterward)
  #
  def finished?
    @finished
  end

  #
  # Return true if the parent's game loop should be paused while this is active
  #
  def modal?
    true
  end
end