Class: Doom::Wad::HudGraphics

Inherits:
Object
  • Object
show all
Defined in:
lib/doom/wad/hud_graphics.rb

Overview

Loads HUD graphics (status bar, weapons) from WAD

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(wad) ⇒ HudGraphics

Returns a new instance of HudGraphics.



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# File 'lib/doom/wad/hud_graphics.rb', line 9

def initialize(wad)
  @wad = wad
  @cache = {}

  load_status_bar
  load_numbers
  load_weapons
  load_faces
  load_keys
end

Instance Attribute Details

#arms_background ⇒ Object (readonly)

Returns the value of attribute arms_background.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def arms_background
  @arms_background
end

#faces ⇒ Object (readonly)

Returns the value of attribute faces.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def faces
  @faces
end

#grey_numbers ⇒ Object (readonly)

Returns the value of attribute grey_numbers.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def grey_numbers
  @grey_numbers
end

#keys ⇒ Object (readonly)

Returns the value of attribute keys.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def keys
  @keys
end

#numbers ⇒ Object (readonly)

Returns the value of attribute numbers.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def numbers
  @numbers
end

#status_bar ⇒ Object (readonly)

Returns the value of attribute status_bar.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def status_bar
  @status_bar
end

#weapons ⇒ Object (readonly)

Returns the value of attribute weapons.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def weapons
  @weapons
end

#yellow_numbers ⇒ Object (readonly)

Returns the value of attribute yellow_numbers.



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# File 'lib/doom/wad/hud_graphics.rb', line 7

def yellow_numbers
  @yellow_numbers
end

Instance Method Details

#[](name) ⇒ Object

Get a cached graphic by name



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# File 'lib/doom/wad/hud_graphics.rb', line 21

def [](name)
  @cache[name]
end

#load_graphic(name) ⇒ Object

Load (and cache) a single named patch/graphic lump. Returns a HudSprite or nil if the lump is missing or too small. Public so the menu, intermission and font renderers can pull graphics by name.



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# File 'lib/doom/wad/hud_graphics.rb', line 28

def load_graphic(name)
  return @cache[name] if @cache[name]

  entry = @wad.find_lump(name)
  return nil unless entry

  data = @wad.read_lump_at(entry)
  return nil unless data && data.size > 8

  sprite = parse_patch(name, data)
  @cache[name] = sprite
  sprite
end