And (Flowgraph Node)

Overview

• Node Name: And
• Category: logic
• File: extensions/flowgraph/nodes/logic/and.lua
• Icon: fg_gate_icon_and

Only lets flow through if all input pins receive flow. Supports a configurable number of inputs.

Pin Schema

Input Pins (default 2, configurable)

Output Pins

Legacy Pin Names

• a → flow_1
• b → flow_2

Internals

• self.count - number of input flow pins (default 2, configurable via editor UI).
• drawCustomProperties() provides an integer input to add/remove flow pins dynamically.
• updatePins(old, new) - adds or removes pins. When removing, also deletes connected links.
• Serializes/deserializes the count value.
• On deserialization, calls updatePins(2, count) to restore extra pins beyond the default 2.

How It Works

1. Each frame, iterates over all flow_1 through flow_N input pins.
2. If any pin is false/nil, outputs flow = false and returns early.
3. Only if all pins are truthy does it output flow = true.

Lua Code Example

-- Logical AND in a flowgraph context:
-- Connect multiple flow sources to flow_1, flow_2, flow_3...
-- Output flow only activates when ALL inputs are active.

-- Equivalent logic:
local allActive = true
for i = 1, count do
  if not flowInputs[i] then
    allActive = false
    break
  end
end

Key Dependencies

• None - pure logic node with no external dependencies

Additional Methods

C:_onDeserialized(res)

Called after the node is deserialized (loaded from file). Restores runtime state from saved data.

Parameters:

• res

C:_onSerialize(res)

Called when the node is serialized (saved to file). Returns data to persist.

Parameters:

• res

C:init()

Initializes the node, setting up pins and default properties.

C:work()

Main work function called each frame/tick when the node is active.

See Also

• Boolean Expression (Flowgraph Node) - Related reference
• Branch (Flowgraph Node) - Related reference
• Bundle (Flowgraph Node) - Related reference
• FlowGraph Guide - Guide