[SDL] A couple of questions...
Pontus.Pihlgren.5501 at student.uu.se
Thu Oct 2 04:31:00 PDT 2003
> Before I go running off re-inventing the wheel (my version would
> look remarkably like a square), I wanted to see if any of you have already
> developed solutions for them:
Hey, square wheels would be kinda cool... bit bumpy though
> 1) I need to be able to read a source Rect from a bmp and rotate it 90
Check out SDL_LoadBMP()
> 2) Copy one SDL_Surface to another.
SDL_BlitSurface, as some other pointed out.
> 3) take a Rect and apply different levels of alpha, i.e., make one color
> fully transparent and then apply a % to the remainder of the image.
Use Gimp or Photoshop to set up transparency, not hard but some fiddeling may
be necesarry. Then save the file as a .TGA(has always been a nice format in my
opinion) with alpha chanel. Then download SDL_Image from libsdl.org, its a
library that can load .TGA files to a surface with alpha information intact...
then just blit it.
> I can go about these using brute force techniques but wanted to see if
> anyone out there had a more graceful solution.
Brute force is always kinda cool..
Cya and good luck.
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