Calculating Projectile Velocity for Parabolic Arc

Development Programming & Scripting C++
4

It would appear a quadratic equation might well be what I need.

I’m currently reading through this:

I know this should be simple, but I’m afraid that I find it so slow to read algebraic formula not in code form.

If I have any success, then I will be sure to post it here!

Also; my previous reply doesn’t seem to have appeared. Does it need moderating?

Edit: Rewritten response to Kamrann.

So, below is my current implementation of your maths, but I appear to be missing something as the projectiles always fall short.

I’m logging the distance and height difference, and they appear to be correct.



			float Theta = 30.f; // launch angle

			FVector dir = TargetPosition - startPos;
			float Sz = dir.Z;// height difference
			dir.Z = 0;
			float Sx = dir.Size();// distance

			float V = (Sx / cos(Theta)) * FMath::Sqrt(Gravity / (2 * (Sx * tan(Theta) - Sz)));

			FVector VelocityOutput = FVector(V*cos(Theta), 0, V*sin(Theta));

			UE_LOG(LogTemp, Warning, TEXT("Distance =  %f"), Sx);
			UE_LOG(LogTemp, Warning, TEXT("Height  =  %f"), Sz);

Am I misinterpreting what you’re saying here?