Hi,
I'm a programmer and was just playing about with some AI for a game.
There is
a moving object
http://www.ahappydea...oduct_31869.htm
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which has a target point it is travelling to. It will travel to this point directly except it may need to evade a circular area. I'm trying to find the point to use as an intermediary target to evade the circle.
Attached is an image which shows the situation.
On that image:
Point a is the target of the object
Point b is the object itself
Point c is the center point of the circle to avoid
Point d is the point we're trying to find
Points a, c and d are known
The length of the dotted line dc is known
The circle is probably not necessary.
In my head ab and cd are perpendicular (??).
The angle inside point c (ie the angle opposite ab within the triangle abc) is known. I'll call this theta just for a moment.
In the triangle bcd the angle inside c (ie the angle opposite db) is half theta.
I keep drawing lots of pretty pictures but haven't actually got anywhere with the problem! I could probably work it out if ab was parallel to the y axis (2d space) but I cannot guarantee that it will be so there's my problem!
Any thoughts on the above?
Thanks in advance,
Kazatan
</b></b> Attached Images
