Class: Chronus::Image

Inherits:
Object
  • Object
show all
Defined in:
lib/chronus/image.rb

Class Method Summary collapse

Class Method Details

.create(filename, transparent = false) ⇒ Object 



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# File 'lib/chronus/image.rb', line 6

def self.create(filename, transparent=false)
  img = load(filename)
  color_key = img.get_pixel(0,0)
  img.set_color_key(SDL::SRCCOLORKEY ,color_key) if transparent == true
  img.display_format
end

.to_tiles(filename, width, height, transparent = false, margin = 0) ⇒ Object 



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# File 'lib/chronus/image.rb', line 13

def self.to_tiles(filename, width, height, transparent = false, margin = 0)
  img = create(filename, false)
  color_key = img.get_pixel(0,0)
  t_width = (img.w-margin) / (width + margin)
  t_height = (img.h-margin) / (height + margin)
  tiles = []
  i = 0
  while i < t_height do
    j = 0;
    while j < t_width do
      tiles << img.copy_rect(j*(width+margin)+margin, i*(height+margin)+margin, width, height)
      tiles[tiles.length - 1].set_color_key(SDL::SRCCOLORKEY, color_key) if transparent == true
      j += 1
    end
    i += 1
  end
  tiles
end