bowman game
in [Matlab]
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From: uzair on 27 Apr 2010 01:09 hello, i'm trying to make a bowman game in 2D in Matlab where the bowman fires a bow and it moves in a parabolic path. The problem I'm facing is how to change the direction of the arrow at each instant so that the arrow moves in a semicircular path. Any help will be appreciated. Thank you
From: ImageAnalyst on 27 Apr 2010 06:09 Pick some length for the arrow, and the slope of the arrow at any given x is just the derivative of your parabola function. Just standard calculus or pre-calculus. E.g. y = a0 + a1*x + a2*x.^2, so slope = a1 + a2 * x. So you know the center and two end points (from the point-slope formula for a line) so you can then use line() to plot it.
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