Question by DanielDollerup · May 11, 2017 at 08:29 AM · velocity projectile accuracy

Calculating projectile lead - improving accuracy

Hello!

I'm trying to work out projectile leading in a space-game setting, so target objects will be moving all over the place.

Here's my code so far:

     /// <summary>
     /// Global method to help calculate leading projectile position.
     /// </summary>
     /// <param name="startPosition">The shooter position</param>
     /// <param name="targetPosition">The target position, eg. the target you wish to hit</param>
     /// <param name="targetVelocity">The targets current move speed</param>
     /// <returns>Point in worldspace, as to where the target will be</returns>
     private Vector3 ProjectileCalculateLead(Vector3 startPosition, Vector3 targetPosition, Vector3 targetVelocity, float velocity)
     {
         float distance = Vector3.Distance(startPosition, targetPosition);
         float travelTime = distance / (velocity);
         return (targetPosition + targetVelocity * travelTime) - startPosition;
     }

It does what I want to some extent, but it seems to overshoot the target slightly.

So here's my question:

Anyone's got some ideas as to how to improve the accuracy on this?

Thanks in advance :)

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