code/modules/antagonists/vampire/vampire_powers/vampire_powers.dm

DEVIATION_NONE	No deviation at all. Flashed from the front or front-left/front-right. Alternatively, flashed in direct view.
DEVIATION_PARTIAL	Partial deviation. Flashed from the side. Alternatively, flashed out the corner of your eyes.
DEVIATION_FULL	Full deviation. Flashed from directly behind or behind-left/behind-rack. Not flashed at all.

Define Details

Full deviation. Flashed from directly behind or behind-left/behind-rack. Not flashed at all.

No deviation at all. Flashed from the front or front-left/front-right. Alternatively, flashed in direct view.

Partial deviation. Flashed from the side. Alternatively, flashed out the corner of your eyes.