I have a UISlider giving me float values between 0 and 255 and I need to set the opacity of an Cocos2D that is in Glubyte.
How do I convert a float to GLubyte ??????
thanks
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I have a UISlider giving me float values between 0 and 255 and I need to set the opacity of an Cocos2D that is in Glubyte.
How do I convert a float to GLubyte ??????
thanks
A
GLubyteis simply defined as:So, conversion is actually no problem (have a look at this post, which offers a few possible approaches behind the “basic”
(int)(x+0.5)), except for “out-of-range” values (since an unsigned char can represent decimal between 0 and 255). In short, you should decide what to do with floating point values that cannot be represented as unsigned integers.Since you say that your slider gives you values between 0 and 255, you should have no problem, though.