Class: Natural20::MapRenderer

Inherits:
Object
  • Object
show all
Defined in:
lib/natural_20/cli/map_renderer.rb

Constant Summary collapse

DEFAULT_TOKEN_COLOR = 
:cyan

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(map, battle = nil) ⇒ MapRenderer

Returns a new instance of MapRenderer.

Parameters:



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# File 'lib/natural_20/cli/map_renderer.rb', line 7

def initialize(map, battle = nil)
  @map = map
  @battle = battle
end

Instance Attribute Details

#battle ⇒ Object (readonly)

Returns the value of attribute battle.



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# File 'lib/natural_20/cli/map_renderer.rb', line 4

def battle
  @battle
end

#map ⇒ Object (readonly)

Returns the value of attribute map.



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# File 'lib/natural_20/cli/map_renderer.rb', line 4

def map
  @map
end

Instance Method Details

#render(entity: nil, line_of_sight: nil, path: [], acrobatics_checks: [], athletics_checks: [], select_pos: nil, update_on_drop: true, path_char: nil, highlight: {}, viewport_size: nil, top_position: [ 0, 0 ]) ⇒ String

Renders the current map to a string

Parameters:

  • (defaults to: nil)

    Entity or entities to consier line of sight rendering for

  • (defaults to: [])

    Array of path to render movement

  • (defaults to: nil)

    coordinate position to render selection cursor

  • (defaults to: true)

    If true, only render line of sight if movement has been confirmed

Returns:



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# File 'lib/natural_20/cli/map_renderer.rb', line 18

def render(entity: nil, line_of_sight: nil, path: [], acrobatics_checks: [], athletics_checks: [], select_pos: nil, update_on_drop: true, path_char: nil, highlight: {}, viewport_size: nil, top_position: [
  0, 0
])
  highlight_positions = highlight.keys.map { |entity| @map.entity_squares(entity) }.flatten(1)

  viewport_size ||= map.size

  top_x, top_y = top_position
  top_x = map.size[0] - top_x < viewport_size[0] ? map.size[0] - viewport_size[0] : top_x if viewport_size
  top_y = map.size[0] - top_y < viewport_size[1] ? map.size[1] - viewport_size[1] : top_y if viewport_size

  right_x = top_x + viewport_size[0] >= map.size[1] ? map.size[1] - 1 : top_x + viewport_size[0]
  right_y = top_y + viewport_size[1] >= map.size[0] ? map.size[0] - 1 : top_y + viewport_size[1]

  (top_x..right_x).map do |row_index|
    (top_y..right_y).map do |col_index|
      c = map.base_map[col_index][row_index]
      display = render_position(c, col_index, row_index, path: path, override_path_char: path_char, entity: entity, line_of_sight: line_of_sight,
                                                         update_on_drop: update_on_drop, acrobatics_checks: acrobatics_checks,
                                                         athletics_checks: athletics_checks)

      display = display.colorize(background: :red) if highlight_positions.include?([col_index, row_index])

      if select_pos && select_pos == [col_index, row_index]
        display.colorize(background: :white)
      else
        display
      end
    end.join
  end.join("\n") + "\n"
end