Class: GamesParadise::GUI::Sokoban::Game

Inherits:
Gosu::Window show all
Defined in:
lib/games_paradise/gui/gosu/sokoban/sokoban.rb

Constant Summary collapse

FILE_LEVELS =
#

FILE_LEVELS

#
GamesParadise.project_base_directory?+
'gui/gosu/sokoban/levels/levels.md'

Instance Method Summary collapse

Methods inherited from Gosu::Window

#gosu_button_down?, #image, #image10?, #image1?, #image2?, #image3?, #image4?, #image5?, #image6?, #image7?, #image8?, #image9?, #on_left_arrow_pressed?, #on_right_arrow_pressed?, #q_means_quit, #set_font, #set_title, #sqrt, #tab_key?, #write_this_text

Constructor Details

#initialize ⇒ Game

#

initialize

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 31

def initialize
  @screen_width, @screen_height = 800, 600
  @scrolling = 0.95
  super(@screen_width, @screen_height, false)
  self.caption = 'Sokoban'

  # ======================================================================= #
  # All images are stored in a Hash.
  # ======================================================================= #
  @images = Hash.new { |hash, key|
    hash[key] = Gosu::Image.load_tiles(
      self,
      "#{GamesParadise.project_base_directory?}"\
      "gui/gosu/sokoban/media/#{key}.png",
      50,
      50,
      false
    )
  }
  reset
  @deforms = Hash.new { |hash, key|
    zlevel = rand(GamesParadise::GUI::Sokoban::ZLevel::TileSpan)
    zoom_x = rand / 5 + 1.05
    zoom_y = rand / 5 + 1.05
    angle = rand(4) * 90 + rand(10) - 5
    hash[key] = [zlevel, angle, zoom_x, zoom_y]
  }
  load_levels
  reload_level
end

Instance Method Details

#button_down(button_id) ⇒ Object

#

button_down

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 191

def button_down(button_id)
  case button_id
  when Gosu::Button::KbLeft # left-key
    @level.go_left
  when Gosu::Button::KbRight # right-key
    @level.go_right
  when Gosu::Button::KbUp # up-key
    @level.go_up
  when Gosu::Button::KbDown # down-key
    @level.go_down
  when Gosu::Button::KbEscape # escape-key
    reload_level
  # ======================================================================= #
  # Close the window on "escape" or "q" button.
  # ======================================================================= #
  when Gosu::KbEscape,
       Gosu::KbQ
    close
  end
end

#draw ⇒ Object

#

draw

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 137

def draw
  set_view(@level.px * 50, @level.py * 50)
  # Draw the map.
  @level.tiles.each_with_index do |line, ty|
    line.each_with_index do |tile, tx|
      ti = tile_to_index(tile)
      x, y = tx * 50 + 25, ty * 50 + 25
      zoff, angle, zoom_x, zoom_y = *@deforms[x + y << 3]
  
      zlevel = zoff + case tile_to_index(tile)
      when 0
        GamesParadise::GUI::Sokoban::ZLevel::WallFirst
      when 1
        GamesParadise::GUI::Sokoban::ZLevel::FloorFirst
      when 2
        GamesParadise::GUI::Sokoban::ZLevel::DropZoneFirst
      end

      dx, dy = x - @view_x / 2, y - @view_y / 2

      @images['tiles'][ti].draw_rot(
        dx, dy, zlevel, angle,
        0.5, 0.5, zoom_x, zoom_y
      )

      if @level.boulder?(tx, ty)
        # The second image is a "boulder".
        @images['objects'][1].draw_rot(
          dx, dy, GamesParadise::GUI::Sokoban::ZLevel::Boulder, 0
        )
      end
    end
  end

  # Draw the player.
  dx, dy = @level.px * 50 - @view_x / 2, @level.py * 50 - @view_y / 2
  # Element [0] refers to the player.
  @images['objects'][0].draw(
    dx, dy, GamesParadise::GUI::Sokoban::ZLevel::Player
  )
end

#load_levels(i = FILE_LEVELS) ⇒ Object

#

load_levels

This method will load the various level that can be used for sokoban.

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 75

def load_levels(
    i = FILE_LEVELS
  )
  dataset = File.read(i)
  @levels = dataset.split(/^\r*$/).map { |data|
    player = nil
    y = 0
    tiles = data.split(/\r*\n/).map { |line|
      if x = line.index(/[@+]/)
        player = [x, y]
      end
      y += 1
      line.tr('@+', ' .').split(//)
    }
    ::GamesParadise::GUI::Sokoban::Level.new(tiles, player)
  }
end

#next_level ⇒ Object

#

next_level

Progress to the next level via this method.

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 98

def next_level
  @level_number += 1
  reload_level
end

#reload_level ⇒ Object

#

reload_level

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 106

def reload_level
  dataset = Marshal.dump(@levels[@level_number])
  @level = Marshal.load(dataset)
  @view_x = @level.px * 50 - @screen_width / 2
  @view_y = @level.py * 50 - @screen_height / 2
  self.close unless @level
  @deforms.clear
end

#reset ⇒ Object

#

reset

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 65

def reset
  @level_number = 0
end

#set_view(x, y) ⇒ Object

#

set_view

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 125

def set_view(x, y)
  new_view_x = x - @screen_width / 2
  new_view_y = y - @screen_height / 2

  of, nf = @scrolling, 1.0 - @scrolling
  @view_x = (@view_x * of + new_view_x * nf).round
  @view_y = (@view_y * of + new_view_y * nf).round
end

#tile_to_index(tile) ⇒ Object

#

tile_to_index

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 182

def tile_to_index(tile)
  '# .'.index(
    tile.tr('*o', '. ')
  )
end

#update ⇒ Object

#

update

#


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# File 'lib/games_paradise/gui/gosu/sokoban/sokoban.rb', line 118

def update
  next_level if @level.finished?
end