# Change Component Properties at Runtime

## Set Properties with Getter/Setter

You can easily change component properties at runtime as most of these properties are writable in blueprint. You can access properties by using the *Get* and *Set* nodes from the component you want to modify.

Here is an example. When the character overlaps with a trigger box at the specified place, the camera distance will smoothly increases to 600.

<figure><img src="/files/4jBcJjiZjR1wf9TauHLI" alt=""><figcaption></figcaption></figure>

The blueprint is quite simple. First call the *GetActiveCamera* node and check its validity. Then get its follow component and cast it to *ScreenFollow*. Last use a *Timeline* node to interpolate from the default camera distance to the target camera distance.

<figure><img src="/files/gpCeaE5qrFeXiID4eXJ3" alt=""><figcaption></figcaption></figure>

You can define various custom functions and place them in a library. It will be very convenient next time you use these functions.

## Set Properties with SetPropertyByName Node

V0.2.1 added a new blueprint node SetPropertyByName, which allows you to set any numeric/struct type property of any object in an **async** manner. It supports nested properties, that is, you can use PropertyName\_A.PropertyName\_B.PropertyName\_C to access and set proerties. Reference the [node list](/manuals-of-ccs/blueprint-nodes-list/ecameralibrary.md#setpropertybyname) for a more comprehensive introduction to the node itself.

In the following example, let us use this node to modify `ScreenFollow` component's `CameraDistance` property.

1. Create a new camera class with the `ScreenFollow` component. It's named `ThirdPersonCamera` here.

<figure><img src="/files/LmH1I3W2wdUIvgWWlXya" alt=""><figcaption></figcaption></figure>

2. Call this camera in blueprint and use the `SetPropertyByName` node to set the `CameraDistance` property in the `ScreenFollow` component. Here the destination value is 1000 and blend duration is 5 seconds.

<figure><img src="/files/tRLzYmlSN1O1bw5rkpjK" alt=""><figcaption></figcaption></figure>

3. Run the game and you will see the camera distance changes as expected.

<figure><img src="/files/w1DBnUkRdgMzwcQJjk00" alt=""><figcaption></figcaption></figure>

4. As property names can be nested, you can achieve this same purpose using one of the following three ways.

<figure><img src="/files/AS3uz6MLb1FVef54FVTO" alt=""><figcaption></figcaption></figure>


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