# Recoil Animation
## How does it work?
The recoil is generated in [URecoilAnimationComponent](https://hitmans-store.gitbook.io/pras-documentation/types#urecoilanimationcomponent), which uses VectorCurve assets and [Recoil Stored Data Assets](https://hitmans-store.gitbook.io/pras-documentation/types#ustoreddata) to generate recoil.
The idea behind the whole system is based on the interpolation between the 0 and Target Values based on the custom curve:
> RecoilValue = Lerp(0f, TargetValue, CurveValue)
CurveValue is not clamped in **\[0;1]** range, which gives us the possibility to achieve that bouncy and springy motion without using spring interpolation. This solution is frame-rate independent, and much more intuitive and easier to use rather than simple interpolation.
## How do curves work?
So many curves
You probably noticed that there're quite a lot of slots for curves - you only need to use the Single and Auto slots!
{% hint style="success" %}
**Tip:** Rest slots are legacy slots, which are no longer required, and exist for backward compatibility.
{% endhint %}
Let's take a closer look at the curves:
{% tabs %}
{% tab title="Single" %}
{% endtab %}
{% tab title="Auto" %}
{% endtab %}
{% endtabs %}
As you can see the Auto curves are very close to zero at some point. This point is the time delay between shots.
**Example:** let's say the weapon fire rate is 600 RPM, this means the delay between shots is `60 / 600 = 0.1s`. This means that Auto curves should be very close to zero around 0.1s to achieve smooth results.
Another important aspect is that **all** curves start and end with **zero.**
