# Particles:getParticleDecay

**Available since:** in development

**Class:** Particles

### Description

Get decay values for the given particle

```
(number), (number), (number), (number) = Particles:getParticleDecay(i)
```

### Parameters

**i**: (number) particle index

### Return values

**Returns** (number) speed decay factor

**Returns** (number) alpha decay factor

**Returns** (number) growth speed decay factor

**Returns** (number) angular speed decay factor