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feat: add state machine

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Bragin Stepan
2026-03-02 19:00:06 +05:00
parent 99c88c071f
commit 7737ee3158
50 changed files with 828 additions and 128 deletions
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14
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/IState.cs Normal file
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using _Project.Develop.Runtime.Utils.ReactiveManagement.Event;
namespace Assets._Project.Develop.Runtime.Utilities.StateMachineCore
{
public interface IState
{
IReadOnlyEvent Entered { get; }
IReadOnlyEvent Exited { get; }
void Enter();
void Exit();
}
}

3
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/IState.cs.meta Normal file
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fileFormatVersion: 2
guid: aed062833c374a6c8f4f784616dad179
timeCreated: 1772453453

7
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/IUpdatableState.cs Normal file
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namespace Assets._Project.Develop.Runtime.Utilities.StateMachineCore
{
public interface IUpdatableState : IState
{
void Update(float deltaTime);
}
}

3
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/IUpdatableState.cs.meta Normal file
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fileFormatVersion: 2
guid: c1ea582554484972bd37276974ad4434
timeCreated: 1772453453

32
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/ParallelState.cs Normal file
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using System.Collections.Generic;
namespace Assets._Project.Develop.Runtime.Utilities.StateMachineCore
{
public abstract class ParallelState<TState> : State where TState : class, IState
{
private List<TState> _states;
public ParallelState(params TState[] states)
{
_states = new List<TState>(states);
}
protected IReadOnlyList<TState> States => _states;
public override void Enter()
{
base.Enter();
foreach (TState state in _states)
state.Enter();
}
public override void Exit()
{
base.Exit();
foreach (TState state in _states)
state.Exit();
}
}
}

3
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/ParallelState.cs.meta Normal file
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fileFormatVersion: 2
guid: 3084d8be941e4eb89f019da66b818702
timeCreated: 1772453453

18
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/State.cs Normal file
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using _Project.Develop.Runtime.Utils.ReactiveManagement.Event;
namespace Assets._Project.Develop.Runtime.Utilities.StateMachineCore
{
public abstract class State : IState
{
private ReactiveEvent _entered = new();
private ReactiveEvent _exited = new();
public IReadOnlyEvent Entered => _entered;
public IReadOnlyEvent Exited => _exited;
public virtual void Enter() => _entered.Invoke();
public virtual void Exit() => _exited.Invoke();
}
}

3
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/State.cs.meta Normal file
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fileFormatVersion: 2
guid: 975fa4387d1e4f37afb584f32071e4bc
timeCreated: 1772453453

96
Assets/_Project/Develop/Runtime/Utilities/StatesManagement/StateMachine.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using _Project.Develop.Runtime.Utilities.Conditions;
namespace Assets._Project.Develop.Runtime.Utilities.StateMachineCore
{
public abstract class StateMachine<TState> : State, IDisposable, IUpdatableState where TState : class, IState
{
private List<StateNode<TState>> _states = new();
private StateNode<TState> _currentState;
private bool _isRunning;
private List<IDisposable> _disposables;
protected StateMachine(List<IDisposable> disposables)
{
_disposables = new List<IDisposable>(disposables);
}
protected TState CurrentState => _currentState.State;
public void AddState(TState state) => _states.Add(new StateNode<TState>(state));
public void AddTransition(TState fromState, TState toState, ICondition condition)
{
StateNode<TState> from = _states.First(stateNode => stateNode.State == fromState);
StateNode<TState> to = _states.First(stateNode => stateNode.State == toState);
from.AddTransition(new StateTransition<TState>(to, condition));
}
public void Update(float deltaTime)
{
if (_isRunning == false)
return;
foreach (StateTransition<TState> transition in _currentState.Transitions)
{
if (transition.Condition.Evaluate())
{
SwitchState(transition.ToState);
break;
}
}
UpdateLogic(deltaTime);
}
protected virtual void UpdateLogic(float deltaTime) { }
public void Dispose()
{
_isRunning = false;
foreach (StateNode<TState> stateNode in _states)
if (stateNode.State is IDisposable disposableState)
disposableState.Dispose();
_states.Clear();
foreach (IDisposable disposable in _disposables)
disposable.Dispose();
_disposables.Clear();
}
public override void Enter()
{
base.Enter();
if (_currentState == null)
SwitchState(_states[0]);
_isRunning = true;
}
public override void Exit()
{
base.Exit();
_currentState?.State.Exit();
_isRunning = false;
}
private void SwitchState(StateNode<TState> nextState)
{
_currentState?.State.Exit();
_currentState = nextState;
_currentState.State.Enter();
}
}
}

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Assets/_Project/Develop/Runtime/Utilities/StatesManagement/StateMachine.cs.meta Normal file
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fileFormatVersion: 2
guid: 421f6f14fa064baaa737bea3684d473f
timeCreated: 1772453453

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Assets/_Project/Develop/Runtime/Utilities/StatesManagement/StateNode.cs Normal file
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using System.Collections.Generic;
namespace Assets._Project.Develop.Runtime.Utilities.StateMachineCore
{
public class StateNode<TState> where TState : class, IState
{
private List<StateTransition<TState>> _transitions = new();
public StateNode(TState state)
{
State = state;
}
public TState State { get; }
public IReadOnlyList<StateTransition<TState>> Transitions => _transitions;
public void AddTransition(StateTransition<TState> transition) => _transitions.Add(transition);
}
}

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Assets/_Project/Develop/Runtime/Utilities/StatesManagement/StateNode.cs.meta Normal file
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fileFormatVersion: 2
guid: dce697e6ac3b45b497e8e89c5ca258cc
timeCreated: 1772453453

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Assets/_Project/Develop/Runtime/Utilities/StatesManagement/StateTransition.cs Normal file
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using _Project.Develop.Runtime.Utilities.Conditions;
namespace Assets._Project.Develop.Runtime.Utilities.StateMachineCore
{
public class StateTransition<TState> where TState : class, IState
{
public StateTransition(StateNode<TState> toState, ICondition condition)
{
ToState = toState;
Condition = condition;
}
public StateNode<TState> ToState { get; }
public ICondition Condition { get; }
}
}

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Assets/_Project/Develop/Runtime/Utilities/StatesManagement/StateTransition.cs.meta Normal file
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fileFormatVersion: 2
guid: 07aef2e29c2643419ff17e32556da944
timeCreated: 1772453453