77 lines
2.6 KiB
C#
77 lines
2.6 KiB
C#
// <copyright file="PoisonMagicEffect.cs" company="MUnique">
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// Licensed under the MIT License. See LICENSE file in the project root for full license information.
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// </copyright>
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namespace MUnique.OpenMU.GameLogic;
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using System.Timers;
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using MUnique.OpenMU.AttributeSystem;
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using MUnique.OpenMU.GameLogic.Attributes;
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/// <summary>
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/// The magic effect for poison, which will damage the character in an interval until the effect ends.
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/// </summary>
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public sealed class PoisonMagicEffect : MagicEffect
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{
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private readonly Timer _damageTimer;
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/// <summary>
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/// Initializes a new instance of the <see cref="PoisonMagicEffect"/> class.
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/// </summary>
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/// <param name="powerUp">The power up.</param>
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/// <param name="definition">The definition.</param>
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/// <param name="duration">The duration.</param>
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/// <param name="attacker">The attacker.</param>
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/// <param name="owner">The owner.</param>
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public PoisonMagicEffect(IElement powerUp, MagicEffectDefinition definition, TimeSpan duration, IAttacker attacker, IAttackable owner)
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: base(powerUp, definition, duration)
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{
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this.Attacker = attacker;
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this.Owner = owner;
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this._damageTimer = new Timer(3000);
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this._damageTimer.Elapsed += this.OnDamageTimerElapsed;
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this._damageTimer.Start();
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}
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/// <summary>
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/// Gets the owner of the effect.
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/// </summary>
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public IAttackable Owner { get; }
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/// <summary>
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/// Gets the attacker which applied the effect.
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/// </summary>
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public IAttacker Attacker { get; }
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/// <inheritdoc />
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protected override void Dispose(bool disposing)
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{
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base.Dispose(disposing);
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this._damageTimer.Stop();
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this._damageTimer.Dispose();
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}
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Usage", "VSTHRD100:Avoid async void methods", Justification = "Catching all Exceptions.")]
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private async void OnDamageTimerElapsed(object? sender, ElapsedEventArgs e)
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{
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try
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{
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if (!this.Owner.IsAlive || this.IsDisposed || this.IsDisposing)
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{
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return;
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}
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var damage = this.Owner.Attributes[Stats.CurrentHealth] * this.Attacker.Attributes[Stats.PoisonDamageMultiplier];
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if (damage <= 0)
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{
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return;
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}
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await this.Owner.ApplyPoisonDamageAsync(this.Attacker, (uint)damage).ConfigureAwait(false);
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}
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catch (Exception ex)
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{
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(this.Owner as ILoggerOwner)?.Logger.LogError(ex, "Error when applying poison damage");
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}
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}
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} |