Class: KameWindow

Inherits:
Gosu::Window
  • Object
show all
Defined in:
lib/kame/kame_window.rb

Instance Method Summary collapse

Constructor Details

#initialize(lines, options) ⇒ KameWindow

Returns a new instance of KameWindow.



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# File 'lib/kame/kame_window.rb', line 4

def initialize(lines, options)
  @width = options[:width]
  @height = options[:height]
  @background_colour = Gosu::Color.argb(KameColours::lookup[options[:paper]])
  @speed = options[:speed]
  @grid = options[:grid]
  @grid_size = options[:grid_size]
  @grid_colour = Gosu::Color.argb(KameColours::lookup[options[:grid_colour]])
  @lines = lines
  @first_frame = Gosu::milliseconds
  
  super(@width, @height, false)
  self.caption = options[:title]
end

Instance Method Details

#draw ⇒ Object 



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# File 'lib/kame/kame_window.rb', line 47

def draw
  self.draw_background
  self.grid if @grid
  return if @lines.nil? || @lines.count == 0 || @seconds_since_last_frame.nil?
  
  max = (@seconds_since_last_frame * @speed).round
  if max > @lines.count - 1
    max = @lines.count - 1
  end
  
  0.upto(max).each do |i|
    line = @lines[i]
    line_colour = Gosu::Color.argb(line[:colour])
    draw_line(line[:from][:x], line[:from][:y], line_colour, line[:to][:x], line[:to][:y], line_colour, 10)
  end
end

#draw_background ⇒ Object 



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# File 'lib/kame/kame_window.rb', line 19

def draw_background
  draw_quad(0,      0,       @background_colour,
            @width, 0,       @background_colour,
            0,      @height, @background_colour,
            @width, @height, @background_colour,
            0)
end

#grid ⇒ Object 



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# File 'lib/kame/kame_window.rb', line 27

def grid
  @grid_font ||= Gosu::Font.new(self, "Arial", 10)
  @grid_size.times do |i|
    c = (@width / @grid_size) * (i + 1)
    r = (@height / @grid_size) * (i + 1)

    draw_line(0, r, @grid_colour, @width, r, @grid_colour, 1)
    @grid_font.draw(r.to_s, 2, r - 11, 1, 1, 1, @grid_colour)

    draw_line(c, 0, @grid_colour, c, @height, @grid_colour, 1)
    c_width = @grid_font.text_width(c.to_s)
    @grid_font.draw(c.to_s, c - c_width - 2, @height - 13, 1, 1, 1, @grid_colour)
  end
end

#update ⇒ Object 



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# File 'lib/kame/kame_window.rb', line 42

def update
  @this_frame = Gosu::milliseconds
  @seconds_since_last_frame = (@this_frame - @first_frame) / 1000.0
end