State Machine Framework
Last updated
Last updated
State Machines provide a framework to manage the logic of an event-driven dynamic system. Many aspects of game-design/development can be modeled and implemented by state-machines. For visual novels, we can consider each Scene as a game-state, where player decisions are the events that allow change between scenes. State Machines provide a simplified perspective of a complex system, which simplifies the logic required to implement dynamic game logic.
A State Machine models a complex system which is simplified according to these rules:
There exists a finite set of well-defined states that the system can be in.
There exists a finite set of discrete events which can cause the system to transition into a different state
There is a well-defined set of State-Event relationships that specify valid transitions for the system.
Events can be considered as enternal signals that impact the system.
It is necessary to specify the starting state of the system
It is necessary to have program memory which maintains track of the current system state.
We implement the StateManager class to manage the State Machine structure.
State-Machines structure:
a finite set of states,
a well-defined set of events that correspond to transitions between states
tracking the currently active state
State: A State can represent a wide range of things: a scene, an animation clip, a behavior of an NPC.
Event: Events can be due to a variety of causes such as user input or due to gameObjects interacting with each other.
State-Event Transitions: A logical structure specifies which events cause valid transitions for each CurrentState-Event-NextState transition relationship.
State-Machine Framework
