Triggers are State Connections that connect two nodes or connects a node to the label of a resource connection. Triggers fire when all the inputs of its source node become Satisfied: when each input passed the number of resources to the node as indicated by its flow rate. A firing trigger will in turn fire its target. When the target is a resource connection, it will pull resources as indicated by its flow rate. A node that has no inputs will fire outgoing triggers whenever it fires (either automatically, or in response to a player action, or to another trigger). Triggers are identified by their label which is a star ('*').
Any state connection that comes out of a gate is considered to be a trigger.
Reverse triggers are marked with an exclamation mark and fire when a firing node cannot pull all the resources it wants to pull.