I wrote an example for the demo:
The demo state machine is controlled by the value of variable i, the value of variable j and the buttons.
The conditions determine which state the state machine enters.
Start state

A to B state by AtoB button

B to C state by j > 100 and BtoC button

A to B Transitionitem


The image above shows the TransitionItem controlling from state A to state B.

From State: A_State (A_State.tres)

To State: B_State (B_State.tres)

Actions: SetBLamp (SetBLamp.tres) 'action for B_State'
A class (SetStateLampRES.cs) includes SetBlamp.tres describes what to do when:

• if it enter the state: OnStateEnter() -> demoStateMachine.bLamp = true;
• if it exit the state: OnStateExit() -> demoStateMachine.bLamp = false;
• if it is in the state: OnUpdate() -> in this case it does nothing

The transition condition is as follows: i > 10 && j < 20 || A->B button

If the logical result of the elements of the ConditionUsage array is true, then the transition occurs.

A->B button && ConditionUsage will be true if:

• Expected Result: True -> the result of the Condition is true,
• Condition: AtoBbuttonCondition (AtoBbuttonCondition.tres) is fulfilled. The class (ButtonStatusConditionRES.cs) includes AtoBbuttonCondition.tres describes how the result of the condition is formed: bool state = demoStateMachine.AtoBbutton;,
• Operator: And -> logical connection with the following ConditionUsage.
  (In this case it doesn't matter since there is no next element)