60 lines
1.6 KiB
C#
60 lines
1.6 KiB
C#
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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namespace FlaxEngine.Utilities
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{
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/// <summary>
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/// State machine state
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/// </summary>
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public abstract class State
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{
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internal StateMachine owner;
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/// <summary>
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/// Gets the state machine.
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/// </summary>
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/// <value>
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/// The state machine.
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/// </value>
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public StateMachine StateMachine => owner;
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/// <summary>
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/// Gets a value indicating whether this state is active.
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/// </summary>
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public bool IsActive => owner != null && owner.CurrentState == this;
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/// <summary>
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/// Checks if can enter to that state
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/// </summary>
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/// <returns>True if can enter to that state, otherwise false</returns>
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public virtual bool CanEnter()
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{
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return true;
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}
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/// <summary>
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/// Checks if can exit from that state
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/// </summary>
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/// <param name="nextState">Next state to enter after exit from the current state</param>
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/// <returns>True if can exit from that state, otherwise false</returns>
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public virtual bool CanExit(State nextState)
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{
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return true;
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}
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/// <summary>
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/// Called when state is starting to be active.
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/// </summary>
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public virtual void OnEnter()
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{
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}
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/// <summary>
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/// Called when state is ending to be active.
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/// </summary>
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/// <param name="nextState">The next state.</param>
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public virtual void OnExit(State nextState)
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{
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}
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}
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}
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