Module: DXOpal::Window

Defined in:
opal/dxopal/window.rb

Constant Summary

@@fps = 
60
@@real_fps = 
0
@@real_fps_ct = 
1
@@real_fps_t = 
Time.now
@@width = 
640
@@height = 
480
@@block = 
nil
@@paused = 
false
@@bgcolor = 
Constants::Colors::C_BLACK

Class Method Summary collapse

Class Method Details

._img ⇒ Object

Return internal DXOpal::Image object (for experimental/hacking use)



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# File 'opal/dxopal/window.rb', line 99

def self._img; @@img; end

._init(w, h) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 91

def self._init(w, h)
  canvas = `document.getElementById("canvas")`
  img = Image.new(w, h, canvas: canvas)
  Input._init(canvas)
  return img
end

._loop(time, &block) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 41

def self._loop(time, &block)
  @@img ||= _init(@@width, @@height)
  t0 = Time.now

  # Calculate fps
  if t0 - @@real_fps_t >= 1.0
    @@real_fps = @@real_fps_ct
    @@real_fps_ct = 1
    @@real_fps_t = t0
  else
    @@real_fps_ct += 1
  end

  # Update physics
  Sprite.matter_tick(time) if Sprite.matter_enabled?

  # Detect inputs
  Input._on_tick

  # Call user code
  @@draw_queue = []
  if @@paused
    Window.draw_pause_screen
  else
    block.call
  end

  # Draw
  @@img.box_fill(0, 0, @@width, @@height, @@bgcolor)
  sorted = @@draw_queue.sort{|a, b| a[0] == b[0] ? a[1] <=> b[1] : a[0] <=> a[1] }
  sorted.each do |item|
    case item[2]
    when :image then @@img.draw(*item.drop(3))
    when :image_rot then @@img.draw_rot(*item.drop(3))
    when :draw_ex then @@img.draw_ex(*item.drop(3))
    when :font then @@img.draw_font(*item.drop(3)) 
    when :pixel then @@img.[]=(*item.drop(3))
    when :line then @@img.line(*item.drop(3))
    when :box then @@img.box(*item.drop(3))
    when :box_fill then @@img.box_fill(*item.drop(3))
    when :circle then @@img.circle(*item.drop(3))
    when :circle_fill then @@img.circle_fill(*item.drop(3))
    when :triangle then @@img.triangle(*item.drop(3))
    when :triangle_fill then @@img.triangle_fill(*item.drop(3))
    end
  end

  `window`.JS.requestAnimationFrame{|time| _loop(time, &block) }
end

.bgcolor ⇒ Object 



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# File 'opal/dxopal/window.rb', line 109

def self.bgcolor; @@bgcolor; end

.bgcolor=(col) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 110

def self.bgcolor=(col); @@bgcolor = col; end

.draw(x, y, image, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 112

def self.draw(x, y, image, z=0)
  enqueue_draw(z, :image, x, y, image)
end

.draw_box(x1, y1, x2, y2, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 138

def self.draw_box(x1, y1, x2, y2, color, z=0)
  enqueue_draw(z, :box, x1, y1, x2, y2, color)
end

.draw_box_fill(x1, y1, x2, y2, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 142

def self.draw_box_fill(x1, y1, x2, y2, color, z=0)
  enqueue_draw(z, :box_fill, x1, y1, x2, y2, color)
end

.draw_circle(x, y, r, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 146

def self.draw_circle(x, y, r, color, z=0)
  enqueue_draw(z, :circle, x, y, r, color)
end

.draw_circle_fill(x, y, r, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 150

def self.draw_circle_fill(x, y, r, color, z=0)
  enqueue_draw(z, :circle_fill, x, y, r, color)
end

.draw_ex(x, y, image, options = {}) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 120

def self.draw_ex(x, y, image, options={})
  enqueue_draw(options[:z] || 0, :draw_ex, x, y, image, options)
end

.draw_font(x, y, string, font, option = {}) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 124

def self.draw_font(x, y, string, font, option={})
  z = option[:z] || 0
  color = option[:color] || [255, 255, 255]
  enqueue_draw(z, :font, x, y, string, font, color)
end

.draw_line(x1, y1, x2, y2, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 134

def self.draw_line(x1, y1, x2, y2, color, z=0)
  enqueue_draw(z, :line, x1, y1, x2, y2, color)
end

.draw_pause_screen ⇒ Object 



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# File 'opal/dxopal/window.rb', line 36

def self.draw_pause_screen
  Window.draw_box_fill(0, 0, Window.width, Window.height, C_BLACK)
  Window.draw_font(0, 0, "...PAUSE...", Font.default, color: C_WHITE)
end

.draw_pixel(x, y, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 130

def self.draw_pixel(x, y, color, z=0)
  enqueue_draw(z, :pixel, x, y, color)
end

.draw_rot(x, y, image, angle, center_x = nil, center_y = nil, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 116

def self.draw_rot(x, y, image, angle, center_x=nil, center_y=nil, z=0)
  enqueue_draw(z, :image_rot, x, y, image, angle, center_x, center_y)
end

.draw_triangle(x1, y1, x2, y2, x3, y3, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 154

def self.draw_triangle(x1, y1, x2, y2, x3, y3, color, z=0)
  enqueue_draw(z, :triangle, x1, y1, x2, y2, x3, y3, color)
end

.draw_triangle_fill(x1, y1, x2, y2, x3, y3, color, z = 0) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 158

def self.draw_triangle_fill(x1, y1, x2, y2, x3, y3, color, z=0)
  enqueue_draw(z, :triangle_fill, x1, y1, x2, y2, x3, y3, color)
end

.enqueue_draw(z, *args) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 162

def self.enqueue_draw(z, *args)
  @@draw_queue.push([z, @@draw_queue.length, *args])
end

.fps ⇒ Object 



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# File 'opal/dxopal/window.rb', line 101

def self.fps; @@fps; end

.fps=(w) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 102

def self.fps=(w); @@fps = w; end

.height ⇒ Object 



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# File 'opal/dxopal/window.rb', line 106

def self.height; @@height; end

.height=(h) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 107

def self.height=(h); @@height = h; end

.load_resources(&block) ⇒ Object

Load resources specified with Image.register or Sound.register Call block when loaded



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# File 'opal/dxopal/window.rb', line 16

def self.load_resources(&block)
  RemoteResource._load_resources(&block)
end

.loop(&block) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 20

def self.loop(&block)
  @@block = block
  `window`.JS.requestAnimationFrame{|time| _loop(time, &block) }
end

.pause ⇒ Object

(DXOpal original) Pause & resume



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# File 'opal/dxopal/window.rb', line 26

def self.pause
  @@paused = true
  @@draw_queue.clear
  draw_pause_screen
end

.paused? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'opal/dxopal/window.rb', line 31

def self.paused?; @@paused; end

.real_fps ⇒ Object 



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# File 'opal/dxopal/window.rb', line 103

def self.real_fps; @@real_fps; end

.resume ⇒ Object 



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# File 'opal/dxopal/window.rb', line 32

def self.resume
  raise "Window.resume is called before Window.loop" if @@block.nil?
  @@paused = false; Window.loop(&@@block)
end

.width ⇒ Object 



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# File 'opal/dxopal/window.rb', line 104

def self.width; @@width; end

.width=(w) ⇒ Object 



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# File 'opal/dxopal/window.rb', line 105

def self.width=(w); @@width = w; end