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# Factorio Prototype Docs Version 2.0.77

# CircularParticleCreationSpecification - Prototype Docs

## CircularParticleCreationSpecification :: struct

## Properties

- default
- sorted

name | :: ParticleID |
starting_frame_speed | :: float |
direction optional | :: float |
direction_deviation optional | :: float |
speed optional | :: float |
speed_deviation optional | :: float |
starting_frame_speed_deviation optional | :: float |
height optional | :: float |
height_deviation optional | :: float |
vertical_speed optional | :: float |
vertical_speed_deviation optional | :: float |
center optional | :: Vector |
creation_distance optional | :: double |
creation_distance_orientation optional | :: double |
use_source_position optional | :: boolean |

name | :: ParticleID |
starting_frame_speed | :: float |
center optional | :: Vector |
creation_distance optional | :: double |
creation_distance_orientation optional | :: double |
direction optional | :: float |
direction_deviation optional | :: float |
height optional | :: float |
height_deviation optional | :: float |
speed optional | :: float |
speed_deviation optional | :: float |
starting_frame_speed_deviation optional | :: float |
use_source_position optional | :: boolean |
vertical_speed optional | :: float |
vertical_speed_deviation optional | :: float |

## Properties

### name :: ParticleID

### starting_frame_speed :: float

### direction :: float optional

Default: `0.25`

### direction_deviation :: float optional

Default: `0`

### speed :: float optional

Default: `0.1`

### speed_deviation :: float optional

Default: `0`

### starting_frame_speed_deviation :: float optional

Default: `0`

### height :: float optional

Default: `1`

### height_deviation :: float optional

Default: `0`

### vertical_speed :: float optional

Default: `0`

### vertical_speed_deviation :: float optional

Default: `0`

### center :: Vector optional

Default: `"`{0, 0}`"`

### creation_distance :: double optional

Default: `0`

### creation_distance_orientation :: double optional

Default: `0`

### use_source_position :: boolean optional

Default: `false`

Type used in

- ProjectileAttackParameters::shell_particle