Watch it draw the color picker. (Will allow you to change color there for WMD2) Play with the sliders to change the colors. R G B stands for Red Green Blue. H S V stands for Hue Saturation Value. "Hue" is similar to "color" and "Value' is similar to "Shade" (Previously, Scratch has not had "Saturation" control. Scratch 2.0 is cool!)
Now Scratch 2.0 can do RGB (Red Green Blue) color which enables HSV (Hue Saturation Value) color... So, the pen can now do partially neutral colors and true grey-scale. I discovered that Scratch 2.0 allows you you place a variable on the Pen color block now, and that it uses a single Integer representation of RGB. So I made a RGB to RGBint function. (I wish it did alpha, but this is really cool scratch team!) I used the HSVtoRGB and RBGtoHSV algorithm from: http://www.cs.rit.edu/~ncs/color/t_convert.html It still has some problems, like when converting between RGB and HSV, and starts to lag if it gets zeros sometimes.... But I'm happy with the progress! I'm building Watch Me Draw 2, or Speed Paint as others have been calling it. It's really cool people have been using my project, even though it wan't really ready to remix or even share... So I'm tring to make this one right. It will have a Photoshop like color picker, color presets and more user friendly. This draws a color picker first as a test. (but will use vector gradients instead of a bitmap for WMD2 because Scratch discards some of the dark colors when adjusting the hue of an image.) Feel free to fix, though I plan to finish this soon. Please comment. Please credit and show me your projects if this helps you! Comments? Thanks Scratch team for the awesome work!
