63 lines
1.9 KiB
C#
63 lines
1.9 KiB
C#
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using System;
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using ColdMint.scripts.character;
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using Godot;
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namespace ColdMint.scripts.stateMachine.StateProcessor;
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/// <summary>
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/// <para>Escape state processor</para>
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/// <para>逃跑状态处理器</para>
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/// </summary>
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public class FleeProcessor : StateProcessorTemplate
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{
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/// <summary>
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/// <para>When to return to enemy free status</para>
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/// <para>何时恢复到没有敌人的状态</para>
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/// </summary>
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private DateTime? _endTime;
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/// <summary>
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/// <para>When away from the enemy, how long to return to normal state</para>
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/// <para>当远离敌人后，多长时间恢复到正常状态</para>
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/// </summary>
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public TimeSpan RecoveryTimeSpan { get; set; } = TimeSpan.FromMilliseconds(300);
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protected override void OnExecute(StateContext context, Node owner)
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{
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if (owner is not AiCharacter aiCharacter)
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{
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return;
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}
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var enemy = aiCharacter.GetFirstEnemyInScoutArea();
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if (enemy == null)
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{
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//There are no enemies left.
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//没有敌人了
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if (_endTime == null)
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{
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_endTime = DateTime.Now + RecoveryTimeSpan;
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return;
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}
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if (DateTime.Now > _endTime)
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{
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//Recovery time, end status.
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//恢复时间，结束状态。
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context.CurrentState = State.Patrol;
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}
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}
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else
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{
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//Enemies
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//有敌人
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//To calculate the escape direction, the vector of the enemy pointing to the character is the escape direction.
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//计算逃跑方向，敌人指向角色的向量为逃跑方向。
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_endTime = null;
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var direction = aiCharacter.GlobalPosition - enemy.GlobalPosition;
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aiCharacter.SetTargetPosition(aiCharacter.GlobalPosition + direction);
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}
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}
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public override State State => State.Flee;
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}
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