Improved version of attraction forked off Xscreensaver-3.27. It offers fixes + new features and should be of interest to anyone with a math or physics bent. 1.0 appears in Xscreensaver 3.33 and up.
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Added options -minsize and -maxsize to set bounds on the random size when -size is not used.
Added options -minsize and -maxsize to set bounds on the random size when -size is not used.
-Added capability to output the vecocities or speeds of the balls as bar graphs in the same window. (Inspired by whirlwindwarp.) -Fixed tail mode so that the first erase would not be from the upper left hand corner to the initial position of each point. (Much prettier in some cases now.) -Made the walls optional. (This allows for more symmetry.) -Made the threshold viscosity optional. (Prevents some strange things from happening in extreme cases.) -Added the option to have balls bounce correctly (by reflecting off the wall) instead of the old method (by putting the ball at the wall and reversing it's velocity). (This can be slower, but can also allow for prettier behavior, especially when used in conjunction with turning the threshold viscosity off.) -Added kludges so that all modes would bounce exactly at the window boundary and not ever a radius before or after it.
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