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From: Rui Maciel <rui.maciel@gmail.com>
Newsgroups: alt.comp.programming,alt.games.programming,comp.programming
Subject: Re: Calculating coordinate intersections?
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Date: Thu, 21 Mar 2013 21:40:59 +0000
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James Dow Allen wrote:

> Some of the answers make this over-complicated.

“Make things as simple as possible, but not simpler.”


> Calculate the angle to the target.
> Calculate the angle the gun is fired.
> Subtract to get the angular error.

Your suggestion is simpler, but has the downside of failing to actually 
work.  Think about it for a moment, particularly the relation between the 
radius, the angle, and the tangent function.


Rui Maciel