Module: Tea::Blitting

Included in:
Bitmap, Screen
Defined in:
lib/tea/m_blitting.rb

Overview

The Blitting mixin allows objects with SDL::Surface to draw or ‘blit’ onto each other.

To use this mixin, include it and write/alias a blittable_buffer method that gets the SDL::Surface.

include Blitting
def blittable_buffer
  @my_sdl_surface
end

Instance Method Summary collapse

Instance Method Details

#blit(source_blittable, x, y) ⇒ Object

Draw the source_blittable onto the current object at (x, y).

source_blittable needs to include the Blitting mixin too.



23
24
25
26
27
 
# File 'lib/tea/m_blitting.rb', line 23

def blit(source_blittable, x, y)
  src = source_blittable.send(:blittable_buffer)
  dest = blittable_buffer
  SDL::Surface.blit src, 0, 0, src.w, src.h, dest, x, y
end