Class: Gosu::LargeImageData

Inherits:
ImageData show all
Defined in:
lib/gosu_android/graphics/largeImageData.rb

Instance Method Summary collapse

Instance Method Details

#draw(x1, y1, c1, x2, y2, c2, x3, y3, c3, x4, y4, c4, z, mode) ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 60

def draw( x1,  y1,  c1, x2,  y2,  c2, x3,  y3,  c3, x4,  y4,  c4, z, mode)

  if Gosu::reorder_coordinates_if_necessary(x1, y1, x2, y2, x3, y3, c3, x4, y4, c4)
    x3, y3, c3, x4, y4, c4 = x4, y4,c4, x3, y3, c3
  end

  c = Color::NONE

  @parts_y.times do |py|
    @parts_x.times do |px|
      part = @parts[py * @parts_x + px];

      rel_xl = (px.to_f * @part_width) / width
      rel_xr = (px.to_f * @part_width + part.width) / width
      rel_yt = (py.to_f * @part_height) / height
      rel_yb = (py.to_f * @part_height + part.height) / height

      abs_xtl = ipl(ipl(x1, x3, rel_yt), ipl(x2, x4, rel_yt), rel_xl)
      abs_xtr = ipl(ipl(x1, x3, rel_yt), ipl(x2, x4, rel_yt), rel_xr)
      abs_xbl = ipl(ipl(x1, x3, rel_yb), ipl(x2, x4, rel_yb), rel_xl)
      abs_xbr = ipl(ipl(x1, x3, rel_yb), ipl(x2, x4, rel_yb), rel_xr)

      abs_ytl = ipl(ipl(y1, y3, rel_yt), ipl(y2, y4, rel_yt), rel_xl)
      abs_ytr = ipl(ipl(y1, y3, rel_yt), ipl(y2, y4, rel_yt), rel_xr)
      abs_ybl = ipl(ipl(y1, y3, rel_yb), ipl(y2, y4, rel_yb), rel_xl)
      abs_ybr = ipl(ipl(y1, y3, rel_yb), ipl(y2, y4, rel_yb), rel_xr)

      part.draw(abs_xtl, abs_ytl, c, abs_xtr, abs_ytr, c,
          abs_xbl, abs_ybl, c, abs_xbr, abs_ybr, c, z, mode)
    end
  end

end

#gl_tex_info ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 94

def gl_tex_info
  0
end

#height ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 52

def height
  @full_height
end

#initilialize(graphics, source, part_width, part_height, border_flags) ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 6

def initilialize(graphics, source, part_width, part_height, border_flags)
  @full_width = source.width()
  @full_height = source.height()
  @parts_x = (1.0 * source.width() / @part_width).ceil.truncate
  @parts_y = (1.0 * source.height() / @part_height).ceil.truncate
  @part_width = part_width
  @part_height = part_height
  @graphics = graphics

  @parts = Array.new(@parts_x * @parts_y)

  @parts_y.times do |y|
    @parts_x.times do |x|
      #The right-most parts don't necessarily have the full width.
      src_width = @part_width
      if (x == @parts_x - 1 and source.width() % @part_width != 0)
          src_width = source.width() % @part_width
      end
      #Same for the parts on the bottom.
      src_height = @part_height
      if (y == @parts_y - 1 and source.height() % @part_height != 0)
          src_height = source.height() % @part_height
      end
      localBorderFlags = BF_TILEABLE
      if (x == 0)
          localBorderFlags = (localBorderFlags & ~BF_TILEABLE_LEFT) | (borderFlags & BF_TILEABLE_LEFT)
      end
      if (x == @parts_x - 1)
          localBorderFlags = (localBorderFlags & ~BF_TILEABLE_RIGHT) | (borderFlags & BF_TILEABLE_RIGHT)
      end
      if (y == 0)
          localBorderFlags = (localBorderFlags & ~BF_TILEABLE_TOP) | (borderFlags & BF_TILEABLE_TOP)
      end
      if (y == @parts_y - 1)
          localBorderFlags = (localBorderFlags & ~BF_TILEABLE_BOTTOM) | (borderFlags & BF_TILEABLE_BOTTOM)
      end

      @parts[y * @parts_x + x] = @graphics.create_image(source, x * @part_width, y * @part_height, src_width, src_height, localBorderFlags)
    end
  end
end

#insert(bitmap, at_x, at_y) ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 108

def insert(bitmap, at_x, at_y)
  @parts_y.times do |y|
    @parts_x.times do |x|
      @parts[y * @parts_x + x].insert(bitmap, at_x - x* @part_width, at_y -y * part_height)
    end
  end
end

#ipl(a, b, ratio) ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 56

def ipl(a,b,ratio)
  a+(b-a)*ratio
end

#to_bitmap ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 98

def to_bitmap()
  bitmap = Bitmap.new(width, height)
  @parts_y.times do |y|
    @parts_x.times do |x|
      bitmap.insert(@parts[y * @parts_x + x].to_bitmap, x * @part_width, y * @part_height)
    end
  end
  bitmap
end

#width ⇒ Object 



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# File 'lib/gosu_android/graphics/largeImageData.rb', line 48

def width
  @full_width
end