Class: Smalruby::Character

Inherits:
Sprite
  • Object
show all
Extended by:
Forwardable, Mutex_m
Defined in:
lib/smalruby/character.rb

Overview

キャラクターを表現するクラス

Direct Known Subclasses

Canvas, Console

Instance Attribute Summary collapse

動き collapse

見た目 collapse

調べる collapse

音 collapse

ペン collapse

ハードウェア collapse

Instance Method Summary collapse

Constructor Details

#initialize(option = {}) ⇒ Character

Returns a new instance of Character.



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# File 'lib/smalruby/character.rb', line 31

def initialize(option = {})
  defaults = {
    x: 0,
    y: 0,
    costume: nil,
    angle: 0,
    visible: true,
    rotation_style: :free
  }
  opt = process_optional_arguments(option, defaults)

  @costumes = [opt[:costume]].flatten.compact.map { |costume|
    costume.is_a?(String) ? Image.load(asset_path(costume)) : costume
  }
  @costume_index = 0
  super(opt[:x], opt[:y], @costumes[@costume_index])

  @event_handlers = {}
  @threads = []
  @checking_hit_targets = []
  @angle = 0 unless Util.windows?
  @enable_pen = false
  @pen_color = 'black'

  self.scale_x = 1.0
  self.scale_y = 1.0
  @vector = { x: 1, y: 0 }

  [:visible].each do |k|
    if opt.key?(k)
      send("#{k}=", opt[k])
    end
  end

  self.rotation_style = opt[:rotation_style]

  self.angle = opt[:angle] if opt[:angle] != 0

  # HACK: Windows XP SP3の環境でワーカースレッドで音声を読み込めな
  # い不具合が発生した。このためメインスレッドでプリロードしておく。
  %w(do re mi fa so ra si do_2).each do |n|
    new_sound("piano_#{n}.wav")
  end

  World.instance.objects << self
end

Instance Attribute Details

#checking_hit_targets ⇒ Object

Returns the value of attribute checking_hit_targets.



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# File 'lib/smalruby/character.rb', line 24

def checking_hit_targets
  @checking_hit_targets
end

#costume_index ⇒ Object

Returns the value of attribute costume_index.



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# File 'lib/smalruby/character.rb', line 26

def costume_index
  @costume_index
end

#costumes ⇒ Object

Returns the value of attribute costumes.



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# File 'lib/smalruby/character.rb', line 25

def costumes
  @costumes
end

#enable_pen ⇒ Object (readonly)

Returns the value of attribute enable_pen.



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# File 'lib/smalruby/character.rb', line 28

def enable_pen
  @enable_pen
end

#event_handlers ⇒ Object

Returns the value of attribute event_handlers.



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# File 'lib/smalruby/character.rb', line 22

def event_handlers
  @event_handlers
end

#pen_color ⇒ Object

Returns the value of attribute pen_color.



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# File 'lib/smalruby/character.rb', line 29

def pen_color
  @pen_color
end

#rotation_style ⇒ Object

Returns the value of attribute rotation_style.



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# File 'lib/smalruby/character.rb', line 27

def rotation_style
  @rotation_style
end

#threads ⇒ Object

Returns the value of attribute threads.



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# File 'lib/smalruby/character.rb', line 23

def threads
  @threads
end

Instance Method Details

#alive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/smalruby/character.rb', line 504

def alive?
  @threads.compact!
  @threads.delete_if { |t|
    if t.alive?
      false
    else
      begin
        t.join
      rescue => e
        Util.print_exception(e)
        exit(1)
      end
      true
    end
  }
  @threads.length > 0
end

#angle ⇒ Object

角度



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# File 'lib/smalruby/character.rb', line 181

def angle
  return super if @rotation_style == :free

  x, y = @vector[:x], @vector[:y]
  a = Math.acos(x / Math.sqrt(x**2 + y**2)) * 180 / Math::PI
  a = 360 - a if y < 0
  a
end

#angle=(val) ⇒ Object

(　)度に向ける



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# File 'lib/smalruby/character.rb', line 191

def angle=(val)
  val %= 360
  radian = val * Math::PI / 180
  @vector[:x] = Math.cos(radian)
  @vector[:y] = Math.sin(radian)

  if @rotation_style == :free
    self.scale_x = 1
    super(val)
  elsif @rotation_style == :left_right
    if @vector[:x] >= 0
      self.scale_x = 1
    else
      self.scale_x = -1
    end
    super(0)
  else
    self.scale_x = 1
    super(0)
  end
end

#await ⇒ Object

1フレーム待つ



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# File 'lib/smalruby/character.rb', line 535

def await
  Smalruby.await
end

#button(pin) ⇒ Object

ボタン



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# File 'lib/smalruby/character.rb', line 400

def button(pin)
  Hardware.create_hardware(Hardware::Button, pin)
end

#button_down(pin) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 497

def button_down(pin)
  @event_handlers[:button_down].try(:each) do |h|
    next unless h.options.include?(pin)
    @threads << h.call
  end
end

#button_up(pin) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 490

def button_up(pin)
  @event_handlers[:button_up].try(:each) do |h|
    next unless h.options.include?(pin)
    @threads << h.call
  end
end

#click(buttons) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 461

def click(buttons)
  @event_handlers[:click].try(:each) do |h|
    if h.options.length > 0 && !h.options.any? { |b| buttons.include?(b) }
      next
    end
    @threads << h.call(Input.mouse_pos_x, Input.mouse_pos_y)
  end
end

#distance(x, y) ⇒ Object

距離



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# File 'lib/smalruby/character.rb', line 310

def distance(x, y)
  Math.sqrt((self.x + center_x - x).abs**2 +
            (self.y + center_y - y).abs**2).to_i
end

#down_pen ⇒ Object

ペンを下ろす



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# File 'lib/smalruby/character.rb', line 353

def down_pen
  @enable_pen = true
end

#draw ⇒ Object 



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# File 'lib/smalruby/character.rb', line 411

def draw
  draw_balloon if visible

  super
end

#go_to(target) ⇒ Object

( )に行く



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# File 'lib/smalruby/character.rb', line 228

def go_to(target)
  if target == :mouse
    x = Input.mouse_pos_x - center_x
    y = Input.mouse_pos_y - center_y
  else
    x = target.x
    y = target.y
  end
  self.position = [x, y]
end

#hit ⇒ Object 



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# File 'lib/smalruby/character.rb', line 470

def hit
  # TODO: なんでもいいからキャラクターに当たった場合に対応する
  @checking_hit_targets &= World.instance.objects
  objects = check(@checking_hit_targets)
  return if objects.empty?
  @event_handlers[:hit].try(:each) do |h|
    if h.options.length > 0 && !h.options.any? { |o| objects.include?(o) }
      next
    end
    @threads << h.call(h.options & objects)
  end
end

#hit?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/smalruby/character.rb', line 330

def hit?(other)
  check([other]).length > 0
end

#join ⇒ Object 



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# File 'lib/smalruby/character.rb', line 522

def join
  @threads.compact!
  @threads.each(&:join)
end

#key_down(keys) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 443

def key_down(keys)
  @event_handlers[:key_down].try(:each) do |h|
    if h.options.length > 0 && !h.options.any? { |k| keys.include?(k) }
      next
    end
    @threads << h.call
  end
end

#key_push(keys) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 452

def key_push(keys)
  @event_handlers[:key_push].try(:each) do |h|
    if h.options.length > 0 && !h.options.any? { |k| keys.include?(k) }
      next
    end
    @threads << h.call
  end
end

#led(pin) ⇒ Object

LED



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# File 'lib/smalruby/character.rb', line 370

def led(pin)
  Hardware.create_hardware(Hardware::Led, pin)
end

#loop ⇒ Object 



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# File 'lib/smalruby/character.rb', line 527

def loop
  Kernel.loop do
    yield
    Smalruby.await
  end
end

#motor_driver(pin) ⇒ Object

モータードライバ



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# File 'lib/smalruby/character.rb', line 395

def motor_driver(pin)
  Hardware.create_hardware(Hardware::MotorDriver, pin)
end

#move(val = 1) ⇒ Object

( )歩動かす



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# File 'lib/smalruby/character.rb', line 81

def move(val = 1)
  self.position = [x + @vector[:x] * val, y + @vector[:y] * val]
end

#move_back(val = 1) ⇒ Object

( )歩後ろに動かす



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# File 'lib/smalruby/character.rb', line 86

def move_back(val = 1)
  move(-val)
end

#next_costume ⇒ Object

次のコスチュームにする



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# File 'lib/smalruby/character.rb', line 299

def next_costume
  @costume_index += 1
  @costume_index = @costume_index % @costumes.length
  self.image = @costumes[@costume_index]
end

#on(event, *options, &block) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 417

def on(event, *options, &block)
  event = event.to_sym
  @event_handlers[event] ||= []
  h = EventHandler.new(self, options, &block)
  @event_handlers[event] << h

  case event
  when :start
    @threads << h.call if Smalruby.started?
  when :hit
    @checking_hit_targets << options
    @checking_hit_targets.flatten!
    @checking_hit_targets.uniq!
  when :sensor_change
    sensor(options.first)
  when :button_up, :button_down
    button(options.first)
  end
end

#play(option = {}) ⇒ Object

( )の音を鳴らす



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# File 'lib/smalruby/character.rb', line 339

def play(option = {})
  defaults = {
    name: 'piano_do.wav'
  }
  opt = process_optional_arguments(option, defaults)

  new_sound(opt[:name]).play
end

#point_towards(target) ⇒ Object

( )に向ける



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# File 'lib/smalruby/character.rb', line 214

def point_towards(target)
  if target == :mouse
    tx = Input.mouse_pos_x
    ty = Input.mouse_pos_y
  else
    tx = target.x
    ty = target.y
  end
  dx = tx - x
  dy = ty - y
  self.angle = Math.atan2(dy, dx) * 180 / Math::PI
end

#position ⇒ Object

X座標、Y座標



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# File 'lib/smalruby/character.rb', line 138

def position
  [x, y]
end

#position=(val) ⇒ Object

X座標を( )、Y座標を( )にする



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# File 'lib/smalruby/character.rb', line 122

def position=(val)
  if @enable_pen
    @enable_pen = false
    left = x + center_x
    top = y + center_y
    self.x = val[0]
    self.y = val[1]
    draw_pen(left, top, x + center_x, y + center_y)
    @enable_pen = true
  else
    self.x = val[0]
    self.y = val[1]
  end
end

#reach_left_or_right_wall? ⇒ Boolean

左右の端に着いた?

Returns:

  • (Boolean) 


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# File 'lib/smalruby/character.rb', line 321

def reach_left_or_right_wall?
  x <= 0 || x >= (Window.width - image.width)
end

#reach_top_or_bottom_wall? ⇒ Boolean

上下の端に着いた?

Returns:

  • (Boolean) 


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# File 'lib/smalruby/character.rb', line 326

def reach_top_or_bottom_wall?
  y <= 0 || y >= (Window.height - image.height)
end

#reach_wall? ⇒ Boolean

端に着いた?

Returns:

  • (Boolean) 


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# File 'lib/smalruby/character.rb', line 316

def reach_wall?
  reach_left_or_right_wall? || reach_top_or_bottom_wall?
end

#rgb_led_anode(pin) ⇒ Object

RGB LED(アノード)



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# File 'lib/smalruby/character.rb', line 375

def rgb_led_anode(pin)
  Hardware.create_hardware(Hardware::RgbLedAnode, pin)
end

#rgb_led_cathode(pin) ⇒ Object

RGB LED(カソード)



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# File 'lib/smalruby/character.rb', line 380

def rgb_led_cathode(pin)
  Hardware.create_hardware(Hardware::RgbLedCathode, pin)
end

#rotate(angle) ⇒ Object

( )度回転する



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# File 'lib/smalruby/character.rb', line 171

def rotate(angle)
  self.angle += angle
end

#say(options = {}) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 243

def say(options = {})
  defaults = {
    message: '',
    second: 0,
  }
  opts = process_optional_arguments(options, defaults)

  message = opts[:message].to_s
  return if message == @current_message

  @current_message = message

  if @balloon
    @balloon.vanish
    @balloon = nil
  end

  return if message.empty?

  lines = message.to_s.lines.map { |l| l.scan(/.{1,10}/) }.flatten
  font = new_font(16)
  width = lines.map { |l| font.get_width(l) }.max
  height = lines.length * (font.size + 1)
  frame_size = 3
  margin_size = 3
  image = Image.new(width + (frame_size + margin_size) * 2,
                    height + (frame_size + margin_size) * 2)
  image.box_fill(0,
                 0,
                 width + (frame_size + margin_size) * 2 - 1,
                 height + (frame_size + margin_size) * 2 - 1,
                 [125, 125, 125])
  image.box_fill(frame_size,
                 frame_size,
                 width + (frame_size + margin_size) + margin_size - 1,
                 height + (frame_size + margin_size) + margin_size - 1,
                 [255, 255, 255])
  lines.each.with_index do |line, row|
    image.draw_font(frame_size + margin_size,
                    frame_size + margin_size + (font.size + 1) * row,
                    line, font, [0, 0, 0])
  end
  @balloon = Sprite.new(x, y, image)
end

#sensor(pin) ⇒ Object

汎用的なセンサー



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# File 'lib/smalruby/character.rb', line 405

def sensor(pin)
  Hardware.create_hardware(Hardware::Sensor, pin)
end

#sensor_change(pin, value) ⇒ Object 



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# File 'lib/smalruby/character.rb', line 483

def sensor_change(pin, value)
  @event_handlers[:sensor_change].try(:each) do |h|
    next unless h.options.include?(pin)
    @threads << h.call(value)
  end
end

#servo(pin) ⇒ Object

サーボモーター



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# File 'lib/smalruby/character.rb', line 385

def servo(pin)
  Hardware.create_hardware(Hardware::Servo, pin)
end

#start ⇒ Object 



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# File 'lib/smalruby/character.rb', line 437

def start
  @event_handlers[:start].try(:each) do |h|
    @threads << h.call
  end
end

#turn ⇒ Object

くるっと振り返る



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# File 'lib/smalruby/character.rb', line 143

def turn
  sync_angle(@vector[:x] * -1, @vector[:y] * -1)
end

#turn_if_reach_wall ⇒ Object

もし端に着いたら、跳ね返る



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# File 'lib/smalruby/character.rb', line 158

def turn_if_reach_wall
  lr = reach_left_or_right_wall?
  tb = reach_top_or_bottom_wall?
  if lr && tb
    turn
  elsif lr
    turn_x
  elsif tb
    turn_y
  end
end

#turn_x ⇒ Object

横に振り返る



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# File 'lib/smalruby/character.rb', line 148

def turn_x
  sync_angle(@vector[:x] * -1, @vector[:y])
end

#turn_y ⇒ Object

縦に振り返る



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# File 'lib/smalruby/character.rb', line 153

def turn_y
  sync_angle(@vector[:x], @vector[:y] * -1)
end

#two_wheel_drive_car(pin) ⇒ Object

2WD車



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# File 'lib/smalruby/character.rb', line 390

def two_wheel_drive_car(pin)
  Hardware.create_hardware(Hardware::TwoWheelDriveCar, pin)
end

#up_pen ⇒ Object

ペンを上げる



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# File 'lib/smalruby/character.rb', line 358

def up_pen
  @enable_pen = false
end

#visible=(val) ⇒ Object

表示する/隠す



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# File 'lib/smalruby/character.rb', line 289

def visible=(val)
  if val
    self.collision_enable = true
  else
    self.collision_enable = false
  end
  super
end

#x=(val) ⇒ Object

X座標を( )にする



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# File 'lib/smalruby/character.rb', line 91

def x=(val)
  left = x + center_x
  top = y + center_y

  if val < 0
    val = 0
  elsif val + image.width >= Window.width
    val = Window.width - image.width
  end

  super(val)

  draw_pen(left, top, x + center_x, y + center_y) if @enable_pen
end

#y=(val) ⇒ Object

Y座標を( )にする



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# File 'lib/smalruby/character.rb', line 107

def y=(val)
  left = x + center_x
  top = y + center_y

  if val < 0
    val = 0
  elsif val + image.height >= Window.height
    val = Window.height - image.height
  end
  super(val)

  draw_pen(left, top, x + center_x, y + center_y) if @enable_pen
end