Files
tbd-station-14/Content.Shared/Stunnable/SharedStunnableComponent.cs
metalgearsloth b2322864e9 Remove IActionBlocker.CanMove (#4449)
* Remove IActionBlocker.CanMove

Ported the remainders over to using MovementAttemptEvent which should also help make mob movement a bit faster.

* Make that check faster
2021-08-09 17:34:01 -07:00

389 lines
12 KiB
C#

using System;
using System.Threading;
using Content.Shared.ActionBlocker;
using Content.Shared.Alert;
using Content.Shared.Interaction;
using Content.Shared.Movement.Components;
using Robust.Shared.GameObjects;
using Robust.Shared.GameStates;
using Robust.Shared.IoC;
using Robust.Shared.Players;
using Robust.Shared.Serialization;
using Robust.Shared.Serialization.Manager.Attributes;
using Robust.Shared.Timing;
using Robust.Shared.ViewVariables;
namespace Content.Shared.Stunnable
{
[NetworkedComponent()]
public abstract class SharedStunnableComponent : Component, IMoveSpeedModifier, IActionBlocker, IInteractHand
{
[Dependency] private readonly IGameTiming _gameTiming = default!;
public sealed override string Name => "Stunnable";
public (TimeSpan Start, TimeSpan End)? StunnedTimer { get; protected set; }
public (TimeSpan Start, TimeSpan End)? KnockdownTimer { get; protected set; }
public (TimeSpan Start, TimeSpan End)? SlowdownTimer { get; protected set; }
[ViewVariables] public float StunnedSeconds =>
StunnedTimer == null ? 0f : (float)(StunnedTimer.Value.End - StunnedTimer.Value.Start).TotalSeconds;
[ViewVariables] public float KnockdownSeconds =>
KnockdownTimer == null ? 0f : (float)(KnockdownTimer.Value.End - KnockdownTimer.Value.Start).TotalSeconds;
[ViewVariables] public float SlowdownSeconds =>
SlowdownTimer == null ? 0f : (float)(SlowdownTimer.Value.End - SlowdownTimer.Value.Start).TotalSeconds;
[ViewVariables] public bool AnyStunActive => Stunned || KnockedDown || SlowedDown;
[ViewVariables] public bool Stunned => StunnedTimer != null;
[ViewVariables] public bool KnockedDown => KnockdownTimer != null;
[ViewVariables] public bool SlowedDown => SlowdownTimer != null;
[DataField("stunCap")]
protected float _stunCap = 20f;
[DataField("knockdownCap")]
protected float _knockdownCap = 20f;
[DataField("slowdownCap")]
protected float _slowdownCap = 20f;
[DataField("helpInterval")]
private float _helpInterval = 1f;
private bool _canHelp = true;
protected CancellationTokenSource StatusRemoveCancellation = new();
[ViewVariables] protected float WalkModifierOverride = 0f;
[ViewVariables] protected float RunModifierOverride = 0f;
private float StunTimeModifier
{
get
{
var modifier = 1.0f;
var components = Owner.GetAllComponents<IStunModifier>();
foreach (var component in components)
{
modifier *= component.StunTimeModifier;
}
return modifier;
}
}
private float KnockdownTimeModifier
{
get
{
var modifier = 1.0f;
var components = Owner.GetAllComponents<IStunModifier>();
foreach (var component in components)
{
modifier *= component.KnockdownTimeModifier;
}
return modifier;
}
}
private float SlowdownTimeModifier
{
get
{
var modifier = 1.0f;
var components = Owner.GetAllComponents<IStunModifier>();
foreach (var component in components)
{
modifier *= component.SlowdownTimeModifier;
}
return modifier;
}
}
/// <summary>
/// Stuns the entity, disallowing it from doing many interactions temporarily.
/// </summary>
/// <param name="seconds">How many seconds the mob will stay stunned.</param>
/// <returns>Whether or not the owner was stunned.</returns>
public bool Stun(float seconds)
{
seconds = MathF.Min(StunnedSeconds + (seconds * StunTimeModifier), _stunCap);
if (seconds <= 0f)
{
return false;
}
StunnedTimer = (_gameTiming.CurTime, _gameTiming.CurTime.Add(TimeSpan.FromSeconds(seconds)));
SetAlert();
OnStun();
Dirty();
return true;
}
protected virtual void OnStun() { }
/// <summary>
/// Knocks down the mob, making it fall to the ground.
/// </summary>
/// <param name="seconds">How many seconds the mob will stay on the ground.</param>
/// <returns>Whether or not the owner was knocked down.</returns>
public bool Knockdown(float seconds)
{
seconds = MathF.Min(KnockdownSeconds + (seconds * KnockdownTimeModifier), _knockdownCap);
if (seconds <= 0f)
{
return false;
}
KnockdownTimer = (_gameTiming.CurTime, _gameTiming.CurTime.Add(TimeSpan.FromSeconds(seconds)));;
SetAlert();
OnKnockdown();
Dirty();
return true;
}
protected virtual void OnKnockdown() { }
/// <summary>
/// Applies knockdown and stun to the mob temporarily.
/// </summary>
/// <param name="seconds">How many seconds the mob will be paralyzed-</param>
/// <returns>Whether or not the owner of this component was paralyzed-</returns>
public bool Paralyze(float seconds)
{
return Stun(seconds) && Knockdown(seconds);
}
/// <summary>
/// Slows down the mob's walking/running speed temporarily
/// </summary>
/// <param name="seconds">How many seconds the mob will be slowed down</param>
/// <param name="walkModifierOverride">Walk speed modifier. Set to 0 or negative for default value. (0.5f)</param>
/// <param name="runModifierOverride">Run speed modifier. Set to 0 or negative for default value. (0.5f)</param>
public void Slowdown(float seconds, float walkModifierOverride = 0f, float runModifierOverride = 0f)
{
seconds = MathF.Min(SlowdownSeconds + (seconds * SlowdownTimeModifier), _slowdownCap);
if (seconds <= 0f)
return;
WalkModifierOverride = walkModifierOverride;
RunModifierOverride = runModifierOverride;
SlowdownTimer = (_gameTiming.CurTime, _gameTiming.CurTime.Add(TimeSpan.FromSeconds(seconds)));
if (Owner.TryGetComponent(out MovementSpeedModifierComponent? movement))
movement.RefreshMovementSpeedModifiers();
SetAlert();
Dirty();
}
private (TimeSpan, TimeSpan)? GetTimers()
{
// Don't do anything if no stuns are applied.
if (!AnyStunActive)
return null;
TimeSpan start = TimeSpan.MaxValue, end = TimeSpan.MinValue;
if (StunnedTimer != null)
{
if (StunnedTimer.Value.Start < start)
start = StunnedTimer.Value.Start;
if (StunnedTimer.Value.End > end)
end = StunnedTimer.Value.End;
}
if (KnockdownTimer != null)
{
if (KnockdownTimer.Value.Start < start)
start = KnockdownTimer.Value.Start;
if (KnockdownTimer.Value.End > end)
end = KnockdownTimer.Value.End;
}
if (SlowdownTimer != null)
{
if (SlowdownTimer.Value.Start < start)
start = SlowdownTimer.Value.Start;
if (SlowdownTimer.Value.End > end)
end = SlowdownTimer.Value.End;
}
return (start, end);
}
private void SetAlert()
{
if (!Owner.TryGetComponent(out SharedAlertsComponent? status))
{
return;
}
var timers = GetTimers();
if (timers == null)
return;
status.ShowAlert(AlertType.Stun, cooldown:timers);
StatusRemoveCancellation.Cancel();
StatusRemoveCancellation = new CancellationTokenSource();
}
protected virtual void OnInteractHand() { }
bool IInteractHand.InteractHand(InteractHandEventArgs eventArgs)
{
if (!_canHelp || !KnockedDown)
{
return false;
}
_canHelp = false;
Owner.SpawnTimer((int) _helpInterval * 1000, () => _canHelp = true);
KnockdownTimer = (KnockdownTimer!.Value.Start, KnockdownTimer.Value.End.Subtract(TimeSpan.FromSeconds(_helpInterval)));
OnInteractHand();
SetAlert();
Dirty();
return true;
}
public override ComponentState GetComponentState(ICommonSession player)
{
return new StunnableComponentState(StunnedTimer, KnockdownTimer, SlowdownTimer, WalkModifierOverride, RunModifierOverride);
}
protected virtual void OnKnockdownEnd()
{
}
public void Update(float delta)
{
var curTime = _gameTiming.CurTime;
if (StunnedTimer != null)
{
if (StunnedTimer.Value.End <= curTime)
{
StunnedTimer = null;
Dirty();
}
}
if (KnockdownTimer != null)
{
if (KnockdownTimer.Value.End <= curTime)
{
OnKnockdownEnd();
KnockdownTimer = null;
Dirty();
}
}
if (SlowdownTimer != null)
{
if (SlowdownTimer.Value.End <= curTime)
{
if (Owner.TryGetComponent(out MovementSpeedModifierComponent? movement))
{
movement.RefreshMovementSpeedModifiers();
}
SlowdownTimer = null;
Dirty();
}
}
if (AnyStunActive || !Owner.TryGetComponent(out SharedAlertsComponent? status) || !status.IsShowingAlert(AlertType.Stun))
return;
status.ClearAlert(AlertType.Stun);
}
#region ActionBlockers
public bool CanInteract() => (!Stunned);
public bool CanUse() => (!Stunned);
public bool CanThrow() => (!Stunned);
public bool CanSpeak() => true;
public bool CanDrop() => (!Stunned);
public bool CanPickup() => (!Stunned);
public bool CanEmote() => true;
public bool CanAttack() => (!Stunned);
public bool CanEquip() => (!Stunned);
public bool CanUnequip() => (!Stunned);
public bool CanChangeDirection() => true;
public bool CanShiver() => !Stunned;
public bool CanSweat() => true;
#endregion
[ViewVariables]
public float WalkSpeedModifier => (SlowedDown ? (WalkModifierOverride <= 0f ? 0.5f : WalkModifierOverride) : 1f);
[ViewVariables]
public float SprintSpeedModifier => (SlowedDown ? (RunModifierOverride <= 0f ? 0.5f : RunModifierOverride) : 1f);
[Serializable, NetSerializable]
protected sealed class StunnableComponentState : ComponentState
{
public (TimeSpan Start, TimeSpan End)? StunnedTimer { get; }
public (TimeSpan Start, TimeSpan End)? KnockdownTimer { get; }
public (TimeSpan Start, TimeSpan End)? SlowdownTimer { get; }
public float WalkModifierOverride { get; }
public float RunModifierOverride { get; }
public StunnableComponentState(
(TimeSpan Start, TimeSpan End)? stunnedTimer, (TimeSpan Start, TimeSpan End)? knockdownTimer,
(TimeSpan Start, TimeSpan End)? slowdownTimer, float walkModifierOverride, float runModifierOverride)
{
StunnedTimer = stunnedTimer;
KnockdownTimer = knockdownTimer;
SlowdownTimer = slowdownTimer;
WalkModifierOverride = walkModifierOverride;
RunModifierOverride = runModifierOverride;
}
}
}
/// <summary>
/// This interface allows components to multiply the time in seconds of various stuns by a number.
/// </summary>
public interface IStunModifier
{
float StunTimeModifier => 1.0f;
float KnockdownTimeModifier => 1.0f;
float SlowdownTimeModifier => 1.0f;
}
}