Class: DXRubyRP5::RenderTarget

Inherits:
Object
  • Object
show all
Defined in:
lib/dxruby_rp5/render_target.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(width, height, _bgcolor = [0, 0, 0, 0]) ⇒ RenderTarget

Returns a new instance of RenderTarget.



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# File 'lib/dxruby_rp5/render_target.rb', line 7

def initialize(width, height, _bgcolor = [0, 0, 0, 0])
  _bgcolor = to_rp5_color(_bgcolor)
  @bgcolor = $app.color(*_bgcolor)
  @_surface = $app.create_graphics(width, height)
  @queue = []
end

Instance Attribute Details

#_surface ⇒ Object (readonly)

Returns the value of attribute _surface.



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# File 'lib/dxruby_rp5/render_target.rb', line 5

def _surface
  @_surface
end

#bgcolor ⇒ Object

Returns the value of attribute bgcolor.



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# File 'lib/dxruby_rp5/render_target.rb', line 4

def bgcolor
  @bgcolor
end

Instance Method Details

#draw(x, y, image, z = 0) ⇒ Object 



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# File 'lib/dxruby_rp5/render_target.rb', line 41

def draw(x, y, image, z = 0)
  return if image.nil?
  draw_task = {
    :proc => lambda { @_surface.image(image._surface, x, y) },
    :z => z
  }
  @queue << draw_task
end

#draw_tile(basex, basey, map, image_arr, startx, starty, sizex, sizey, z = 0) ⇒ Object 



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# File 'lib/dxruby_rp5/render_target.rb', line 50

def draw_tile(basex, basey, map, image_arr, startx, starty, sizex, sizey, z = 0)
  image_arr = image_arr.flatten
  first_img = image_arr[0]
  w, h = first_img.width, first_img.height
  startx_mod_w = startx % w
  starty_mod_h = starty % h

  from_i = starty_mod_h < 0 ? -1 : 0
  to_i   = sizey + (starty_mod_h <= 0 ?  0 : 1)
  from_j = startx_mod_w < 0 ? -1 : 0
  to_j   = sizex + (startx_mod_w <= 0 ?  0 : 1)

  y = basey - (starty_mod_h < 0 ? h + starty_mod_h : starty_mod_h)
  init_x = basex - (startx_mod_w < 0 ? w + startx_mod_w : startx_mod_w)

  (from_i..to_i).each do |i|
    if (i + starty / h) < 0
      my = (((i + starty / h) % map.size) + map.size) % map.size
    else
      my = (i + starty / h) % map.size
    end
    map_row = map[my]

    x = init_x
    (from_j..to_j).each do |j|
      if (j + startx / w) < 0
        mx = (((j + startx / w) % map_row.size) + map_row.size) % map_row.size
      else
        mx = (j + startx / w) % map_row.size
      end
      idx = map_row[mx]

      map_img = image_arr[idx]
      self.draw(x, y, map_img, z)

      x += w
    end
    y += h
  end
end

#height ⇒ Object 



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# File 'lib/dxruby_rp5/render_target.rb', line 18

def height
  return @_surface.height
end

#update ⇒ Object 



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# File 'lib/dxruby_rp5/render_target.rb', line 31

def update
  @_surface.begin_draw()
  @_surface.background(@bgcolor)
  @queue.sort { |a, b| a[:z] <=> b[:z] }.each do |task|
    task[:proc].call
  end
  @queue.clear
  @_surface.end_draw()
end

#width ⇒ Object 



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# File 'lib/dxruby_rp5/render_target.rb', line 14

def width
  return @_surface.width
end