# MobEffectAddedEvent

The event is not cancelable.

The event does not have a result.

## Importing the class

Importing the class is recommended for events, simply add this line to the top of your script file.
```zenscript
import crafttweaker.forge.api.event.entity.living.effect.MobEffectAddedEvent;
```


## Listening to the event

```zenscript
events.register<crafttweaker.forge.api.event.entity.living.effect.MobEffectAddedEvent>(event => {
    println("MobEffectAddedEvent ran!");
});
```


## Supertype

MobEffectAddedEvent extends [MobEffectEvent](/forge/api/event/entity/living/effect/MobEffectEvent). That means all methods available in [MobEffectEvent](/forge/api/event/entity/living/effect/MobEffectEvent) are also available in MobEffectAddedEvent

## Properties

|       Name        |                                Type                                | Has Getter | Has Setter |
|-------------------|--------------------------------------------------------------------|------------|------------|
| effectInstance    | [MobEffectInstance](/vanilla/api/entity/effect/MobEffectInstance)  | true       | false      |
| effectSource      | [Entity](/vanilla/api/entity/Entity)?                              | true       | false      |
| oldEffectInstance | [MobEffectInstance](/vanilla/api/entity/effect/MobEffectInstance)? | true       | false      |



Name	Type	Has Getter	Has Setter
Name effectInstance	Type MobEffectInstance	Has Getter true	Has Setter false
Name effectSource	Type Entity?	Has Getter true	Has Setter false
Name oldEffectInstance	Type MobEffectInstance?	Has Getter true	Has Setter false