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@ -9,7 +9,7 @@ using Godot;
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namespace Babushka.scripts.CSharp.Common.Fight;
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public class FightHappening
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public partial class FightHappening : Node
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{
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/*
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To get a visual overview of the FightHappening state machine, refer to the graph on miro:
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@ -36,14 +36,14 @@ public class FightHappening
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EnemyWin,
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}
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private class FightersEnterStaging
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public class FightersEnterStaging
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{
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public required List<FightWorld.Fighter> enteringAllyFighters;
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public required List<FightWorld.Fighter> enteringEnemyFighters;
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public bool HasAnyToExecute()
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{
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return enteringAllyFighters.Count != 0 || enteringEnemyFighters.Count != 0;
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return enteringAllyFighters.Any() || enteringEnemyFighters.Any();
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}
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}
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@ -56,7 +56,7 @@ public class FightHappening
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#endregion
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#region ShortCuts
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#region Shortcuts
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private static FightWorld.FightHappeningData HappeningData =>
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FightWorld.Instance.fightHappeningData ?? throw new NoFightHappeningException();
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@ -67,19 +67,34 @@ public class FightHappening
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#region Events
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public event Action<FightState>? transitionFromState;
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public event Action<FightState, FightState>? transitionState;
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public event Action<FightState>? transitionToState;
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[Signal]
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public delegate void SignalTransitionFromStateEventHandler(FightState state);
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[Signal]
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public delegate void SignalTransitionStateEventHandler(FightState from, FightState to);
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[Signal]
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public delegate void SignalTransitionToStateEventHandler(FightState state);
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#endregion
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#region Staging
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#region Singleton
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public static FightHappening Instance = null!;
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private FightersEnterStaging? _fightersEnterStaging;
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private FighterAction? _actionStaging;
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private void SetupInstance()
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{
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Instance = this;
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}
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#endregion
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public override void _Ready()
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{
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SetupInstance();
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StartFight();
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}
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#region Public Methods
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public void StartFight()
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@ -88,17 +103,51 @@ public class FightHappening
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ChangeState(FightState.FightStartAnim);
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}
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public void ActionSelect(FighterAction action)
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{
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RequireState(FightState.InputActionSelect);
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HappeningData.actionStaging = action;
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action.Reset();
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ChangeState(FightState.ActionCheckDetails);
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}
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public void DetailFilled()
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{
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RequireState(FightState.InputActionDetail);
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ChangeState(FightState.ActionCheckDetails);
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}
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#endregion
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#region State Machine
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private bool _inTransition = false;
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private FightState? _changeToAfterTransition = null;
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private void ChangeState(FightState nextState)
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{
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_changeToAfterTransition = null;
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if (_inTransition)
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{
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_changeToAfterTransition = nextState;
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return;
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}
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_inTransition = true;
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TransitionFromState();
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var lastState = HappeningData.fightState;
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HappeningData.fightState = nextState;
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TransitionFromToState(nextState, lastState);
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TransitionToState(nextState);
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EmitSignalSignalTransitionFromState(lastState);
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EmitSignalSignalTransitionState(lastState, nextState);
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EmitSignalSignalTransitionToState(nextState);
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_inTransition = false;
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if (_changeToAfterTransition.HasValue)
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{
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ChangeState(_changeToAfterTransition.Value);
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}
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}
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private void TransitionFromState()
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@ -108,21 +157,10 @@ public class FightHappening
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{
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default: break;
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}
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// notify everyone else
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transitionFromState?.Invoke(HappeningData.fightState);
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}
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private void TransitionFromToState(FightState nextState, FightState lastState)
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{
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transitionState?.Invoke(lastState, nextState);
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}
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private void TransitionToState(FightState nextState)
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{
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// notify everyone else
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transitionToState?.Invoke(nextState);
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// fixed behaviour
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switch (HappeningData.fightState)
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{
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@ -130,8 +168,8 @@ public class FightHappening
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AdvanceToStateInSeconds(FightState.FightersEnter, StartAnimationTime);
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break;
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case FightState.FightersEnter:
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_fightersEnterStaging = StageFightersEnter();
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if (_fightersEnterStaging.HasAnyToExecute())
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HappeningData.fightersEnterStaging = StageFightersEnter();
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if (HappeningData.fightersEnterStaging.HasAnyToExecute())
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{
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ExecuteFightersEnter();
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ChangeState(FightState.FightersEnterAnim);
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@ -150,10 +188,11 @@ public class FightHappening
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ChangeState(FightState.StateCheck);
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break;
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case FightState.StateCheck:
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// restest action staging
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_actionStaging = null;
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// restest action staging and fighter enter staging
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HappeningData.actionStaging = null;
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HappeningData.fightersEnterStaging = null;
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if ( /*TODO: are all allys dead*/ false)
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if (!FightWorld.Instance.allyFighters.IsAlive())
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{
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ChangeState(FightState.EnemyWin);
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}
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@ -161,7 +200,7 @@ public class FightHappening
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{
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ChangeState(FightState.PlayerWin);
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}
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else if (CurrentFighter.actionsLeft <= 0)
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else if (CurrentFighter.actionPointsLeft <= 0)
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{
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ChangeState(FightState.FightersEnter);
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}
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@ -179,9 +218,11 @@ public class FightHappening
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// wait for player input
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break;
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case FightState.ActionCheckDetails:
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RequireNotNull(HappeningData.actionStaging);
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if (ActionAbort())
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ChangeState(FightState.InputActionSelect);
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else if (ActionNeededDetail() != null)
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else if (ActionNeededDetail())
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ChangeState(FightState.InputActionDetail);
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else
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ChangeState(FightState.ActionExecute);
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@ -190,7 +231,7 @@ public class FightHappening
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// wait for player input
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break;
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case FightState.EnemyActionSelect:
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_actionStaging = CurrentFighter.AutoSelectAction();
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HappeningData.actionStaging = CurrentFighter.AutoSelectAction();
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ChangeState(FightState.ActionExecute);
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break;
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case FightState.ActionExecute:
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@ -212,7 +253,6 @@ public class FightHappening
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default: break;
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}
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}
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#endregion
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#region Game Logic
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@ -221,38 +261,33 @@ public class FightHappening
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{
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// ally
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var enteringAllyFighters = new List<FightWorld.Fighter>();
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//TODO
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var allyFighters = FightWorld.Instance.allyFighters;
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if (!allyFighters.vesnaFighter.entered)
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{
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enteringAllyFighters.Add(allyFighters.vesnaFighter);
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}
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// enemy
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const int totalEnemySpace = 3;
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var enemySpaceLeft = totalEnemySpace - HappeningData.enemyGroup.GetEnteredAmount();
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var enterEnemyFighters = new List<FightWorld.Fighter>();
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for (var i = 0; i < enemySpaceLeft; i++)
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{
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if (HappeningData.enemyGroup.TryGetFirstUnenteredFighter(out var fighter))
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{
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enterEnemyFighters.Add(fighter);
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}
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}
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return new FightersEnterStaging
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{
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enteringAllyFighters = enteringAllyFighters,
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enteringEnemyFighters = enterEnemyFighters
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enteringEnemyFighters = HappeningData.enemyGroup.GetUptoUnenteredFighters(enemySpaceLeft).ToList()
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};
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}
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private void ExecuteFightersEnter()
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{
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Debug.Assert(_fightersEnterStaging != null);
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foreach (var fighter in _fightersEnterStaging.enteringAllyFighters)
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Debug.Assert(HappeningData.fightersEnterStaging != null);
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foreach (var fighter in HappeningData.fightersEnterStaging.enteringAllyFighters)
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{
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fighter.entered = true;
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HappeningData.fighterStack.AddAsLast(fighter);
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}
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foreach (var fighter in _fightersEnterStaging.enteringEnemyFighters)
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foreach (var fighter in HappeningData.fightersEnterStaging.enteringEnemyFighters)
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{
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fighter.entered = true;
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HappeningData.fighterStack.AddAsLast(fighter);
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@ -262,30 +297,32 @@ public class FightHappening
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private void ExecuteNextFighter()
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{
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HappeningData.fighterStack.Next();
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CurrentFighter.actionPointsLeft = CurrentFighter.maxActionPoints;
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}
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private void ExecuteAction()
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{
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Debug.Assert(_actionStaging != null);
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_actionStaging.ExecuteAction();
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Debug.Assert(HappeningData.actionStaging != null);
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HappeningData.actionStaging.ExecuteAction();
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CurrentFighter.actionPointsLeft -= HappeningData.actionStaging.GetActionPointCost();
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}
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private Variant<float, Func<bool>> GetActionAnimationEnd()
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{
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Debug.Assert(_actionStaging != null);
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return _actionStaging.GetAnimationEnd();
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Debug.Assert(HappeningData.actionStaging != null);
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return HappeningData.actionStaging.GetAnimationEnd();
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}
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private bool ActionAbort()
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{
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Debug.Assert(_actionStaging != null);
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return _actionStaging.MarkedForAbort();
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Debug.Assert(HappeningData.actionStaging != null);
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return HappeningData.actionStaging.MarkedForAbort();
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}
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private FighterAction.FighterActionDetail? ActionNeededDetail()
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private bool ActionNeededDetail()
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{
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Debug.Assert(_actionStaging != null);
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return _actionStaging.NeededDetail();
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Debug.Assert(HappeningData.actionStaging != null);
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return HappeningData.actionStaging.NextDetail();
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}
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#endregion // Game Logic
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@ -301,6 +338,14 @@ public class FightHappening
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$"Can not call this Method while in state {HappeningData.fightState}. Only available in {string.Join(" ,", states)}");
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}
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private void RequireNotNull(Object? o)
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{
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if (o != null)
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return;
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throw new Exception("Object must not be null to call this method");
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}
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private void AdvanceToStateInSeconds(FightState nextState, float seconds)
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{
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FightWorld.Instance.GetTree().CreateTimer(seconds).Timeout += () => ChangeState(nextState);
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@ -317,4 +362,6 @@ public class FightHappening
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}
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#endregion
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}
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jonathan
3 months ago