Kazarp - 9 months ago 107

C# Question

Answer

You should take a look at the documentation of `atan2`

(here).

What you're looking of is finding the difference between B (your upper left vector) and A (your bottom right vector), then pass this as a parameter to `atan2`

```
return Math.Atan2(b.Y - a.Y,b.X - a.X);
```

What your code currently does is find the angle of the vector `b`

in reference to `0,0`

and subtract the angle of the vector `a`

in reference to `0,0`

.

The reason you always get 0 is because `1,1`

and `50,50`

are on the same line that crosses `0,0`

(both calls return something approx. `0.785398`

), so subtracting them will result in `0`

Source (Stackoverflow)