Added better sprite redrawing and camera move/rotate/zooming to demo_rubygame3.rb. Never got around to checking it in.
Added better sprite redrawing and camera move/rotate/zooming to demo_rubygame3.rb. Never got around to checking it in.

singpolyma/rubygame,Dami-coding/rubygame,singpolyma/rubygame,firstval/rubygame,rubygame/rubygame