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And another math problem…

Posted by (twitter: @petterroea)
December 17th, 2011 10:24 am

I have allready had one problem, but here comes another one! I want a image to rotate 20 pixels from a center coordinate, based on degrees in the rotation. This so i can make a muzzleflash. How do i do that? I am only 13 yrs old, so school hasn’t covered this stuff yet :(

This entry was posted on Saturday, December 17th, 2011 at 10:24 am and is filed under LD #22. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

3 Responses to “And another math problem…”

  1. digital_sorceress says:
    December 17, 2011 at 10:30 am

    It depends on how you’re drawing sprites.

    Mathematically, you’d move the image 20 pixels so that the rotation centre is at the origin, then rotate, then add the 20 pixels back again.

  2. handuel says:
    December 17, 2011 at 10:47 am

    Im 13 as well :D i tought myself java at home. Came here to make a game and(never)… I’m failing

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