Enum

A named set of fixed values (e.g. EWeaponType: Pistol/Shotgun/Rifle). Pairs well with Switch on Enum.

State machine pattern using enum variable and switch

Variables: CurrentState (your EState enum: Idle, Patrol, Chase, Attack, Dead). EventTick or custom Update event → Switch on EState(CurrentState) → Idle: [idle logic] → Patrol: [patrol logic] → Chase: [chase logic] etc. State transitions via custom events: OnEnemySpotted → SetVariable(CurrentState=EState::Chase). OnEnemyLost → SetVariable(CurrentState=EState::Patrol). OnDamaged → Branch(Health<=0) → True: SetVariable(CurrentState=EState::Dead). Key: Switch On Enum node — connect enum variable to the input, each value gets an exec output pin.

Switch

Routes execution based on the value of an integer, name, or enum. Cleaner than chained Branches for >2 outcomes.

string

string

OR Boolean — logical OR of two booleans

AND Boolean — logical AND of two booleans

BooleanAND — logical AND

OR=BooleanOR, NOT=Not_PreBool, XOR=BooleanXOR

Boolean

A True/False value. The simplest type — used for flags, toggles, and Branch conditions.

Add

Standard addition. Works on Integer, Float, Vector, Rotator, etc — UE picks the right overload from pin types.

NOT Boolean — logical NOT (invert boolean)