Lecture 142 (Unreal doesn't see the Header File

[Zen_Leonel]

The Compiler says their’s no #include “APawnTurret.generated.h” but there’s one in the Header file. Any ideas as to why it can’t see it?

[DanM]

You are missing a semicolon on line 9

[Zen_Leonel]

Still Getting the error.

[DanM]

Check your spelling of Pawn in the .cpp

[Zen_Leonel]

Thank You but now Have these errors.

[DanM]

The first error is giving you the answer to the problem.
The second is due to () on the whole expression (which is redundant) instead of just on
(FVector - FVector)

[Zen_Leonel]

So I’ve corrected GamplayStatics, and eliminated the extra ( ) but I’m still getting the error.

[DanM]

That is not correct. Take a look at this diagram I made earlier

Why do we subtract StartLocation

To make things easier lets do this with 2D vectors. Say Turret’s location is [2, 3] Player is at [5, 2] Doing (Player - Turret) will be [3, -1] which is a vector that goes from Turret to Player. Here it is visualised [2020-07-11 11_09_55-Desmos _ Graphing Calculator] And you can see that the direction is towards Player [2020-07-11 11_09_55-Desmos _ Graphing Calculator]

Now instead of the rotation, we want it’s length. So it’s

(FVector - FVector).Size()

[Zen_Leonel]

That makes sense. Thank you so much for your help!!!.