options.rb

class Options < State
    def initialize game
        @game = game
        @screen = game.screen
        @queue = game.queue
         
        @pong = Text.new 0, 35, "Options", 100
        @line = GameObject.new(0, 150, Rubygame::Surface.new([@screen.width,10]).fill([255,255,255]))
         
        @winning_score = List.new 0, 200, 48, "Winning Score: ", :winning_score, [-1, 3, 5, 7, 9]
        @ball_speed = List.new 0, 250, 48, "Ball Speed: ", :ball_speed, [3,4,5,6,7,8,9,10]
        @music = OnOff.new 0, 300, 48, "Music: ", :music
        @fx = OnOff.new 0, 350, 48, "FX: ", :fx
        @reset = Reset.new 0, 400, 48
 
        @options = [@winning_score, @ball_speed, @music, @fx, @reset]
        @reset.options = @options
        @select = Selector.new 0, *@options
         
        @objs = [@pong, @line, *@options]
        @objs.each { |obj| obj.center_x @screen.width }
        @objs += [@select]
    end
     
    def update
        @select.update
        @queue.each do |ev|
            @select.handle_event ev
            case ev
                when Rubygame::KeyDownEvent
                    if ev.key == Rubygame::K_ESCAPE
                        @game.switch_state Title.new(@game)
                    end
                    if ev.key == Rubygame::K_RETURN
                        @options[@select.choice].cycle
                    end
            end
        end
    end
     
    def draw
        @screen.fill [0, 0, 0]
         
        @objs.each { |obj| obj.draw @screen }
         
        @screen.flip
    end
end
 
class OnOff < Text
    def initialize x, y, size, prefix, value
        @value = value
        @prefix = prefix
        super x, y, gen_text, size
    end
     
    def cycle
        Conf[@value] = !Conf[@value]
        self.text= gen_text
        Conf.save
    end

    def gen_text
        if Conf[@value] == true
            return @prefix + "On"
        else
            return @prefix + "Off"
        end
    end
     
    def reset
        self.text= gen_text
    end
end
 
class List < Text
    def initialize x, y, size, prefix, value, choices
        @prefix = prefix
        @value = value
        @choices = choices
        @choice = @choices.index(Conf[@value])
        super x, y, gen_text, size
    end
     
    def cycle
        @choice += 1
        @choice = 0 if @choices[@choice] == nil
        Conf[@value] = @choices[@choice]
        self.text= gen_text
        Conf.save
    end
     
    def gen_text
        return @prefix + Conf[@value].to_s
    end
     
    def reset
        @choice = @choices.index(Conf[@value])
        self.text= gen_text
    end
end
 
class Reset < Text
    attr_writer :options
    def initialize x, y, size
        super x, y, "Reset", size
    end
     
    def cycle
        Conf.reset
        Conf.save
        @options.each do |opt|
            opt.reset
        end
    end
     
    def reset
    end
end