Gate

Boolean logic on two inputs — AND, OR, NOT, XOR.

Output: boolean

Inputs

Handle	Type	Meaning
a	boolean	first condition
b	boolean	second condition (ignored by not)

Unwired inputs use the card values.

Parameters

Parameter	Default	Options
op	and	and, or, not, xor

Practical example

A door that opens only when both pressure plates are occupied:

1. Set up two Proximity nodes, one per plate (each fed by two Object Selectors).
2. Add a Gate (op and); wire the Proximities into a and b.
3. Wire Gate → a Visibility node's on input, then Visibility → an Object Selector targeting the door barrier — the barrier shows only while both plates are active. Flip the Gate to or for either-plate behavior.

Tip

not is a simple inverter: it looks only at a and ignores b entirely — handy right before a Visibility to turn "near" into "hide".