NewStateMachine creates a new state machine.

Accept a proposal group (that contain one or more proposals of the same type).

Add a new game event.

Add a new passive game event (that is only logged, but does not automatically trigger anything).

Add a new proposal (i.e.

Add a new red card.

Add a new yellow card.

A certain change.

Switch to a new stage.

Continue with the next referee command.

New referee command.

Change the current game state.

Revert a certain change.

Set the ball placement pos.

Initiate ball placement.

A state change.

StateMachine describes the state machine that translates changes into new states.

Switch the team colors.

Update some configuration.

Update the current state of a team (all fields that should be updated are set).

Trigger when a yellow card timed out.