On Sunday, June 29, 2003, at 05:02 AM, curry wrote:
The input could be gun location, bullet speed, target location, target direction, and target speed. The output could be bullet direction or collision point.
Try this. If you get bogged down, let us know.
Your direction and speed is your velocity vector. In your preliminary algebra & trig change it from angle & speed to x-speed & y-speed. Do this for both bullet and target.
Your location, presumably, is already in cartesian coordinates and will have components x-location and y-location. This applies to both the gun and the target at any time.
Now that x and y are split out, they can be solved separately.
Set up your location equations based on time and velocity.
Solve the simultaneous equations where the x-location of the target and the x-location of the bullet are equal and the same for y.
When you are done, you should have a bullet angle formula with some trig and arithmetic.
This makes for a very smart opponent, of course.
Dar Scott
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