From 6ce8b9e22fc13be34b442c7b6af48b42cd44275a Mon Sep 17 00:00:00 2001
From: chai <215380520@qq.com>
Date: Wed, 13 Mar 2024 11:00:58 +0800
Subject: +init

---
 UnitySA.Utility/CurveCtrlBob.cs | 50 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 UnitySA.Utility/CurveCtrlBob.cs

(limited to 'UnitySA.Utility/CurveCtrlBob.cs')

diff --git a/UnitySA.Utility/CurveCtrlBob.cs b/UnitySA.Utility/CurveCtrlBob.cs
new file mode 100644
index 0000000..04e57e5
--- /dev/null
+++ b/UnitySA.Utility/CurveCtrlBob.cs
@@ -0,0 +1,50 @@
+using System;
+using UnityEngine;
+
+namespace UnitySA.Utility;
+
+[Serializable]
+public class CurveCtrlBob
+{
+	public float HorizontalBobRange = 0.33f;
+
+	public float VerticalBobRange = 0.33f;
+
+	public AnimationCurve Bobcurve = new AnimationCurve(new Keyframe(0f, 0f), new Keyframe(0.5f, 1f), new Keyframe(1f, 0f), new Keyframe(1.5f, -1f), new Keyframe(2f, 0f));
+
+	public float VerticaltoHorizontalRatio = 1f;
+
+	private float m_CyclePositionX;
+
+	private float m_CyclePositionY;
+
+	private float m_BobBaseInterval;
+
+	private Vector3 m_OriginalCameraPosition;
+
+	private float m_Time;
+
+	public void Setup(Camera camera, float bobBaseInterval)
+	{
+		m_BobBaseInterval = bobBaseInterval;
+		m_OriginalCameraPosition = camera.transform.localPosition;
+		m_Time = Bobcurve[Bobcurve.length - 1].time;
+	}
+
+	public Vector3 DoHeadBob(float speed)
+	{
+		float x = m_OriginalCameraPosition.x + Bobcurve.Evaluate(m_CyclePositionX) * HorizontalBobRange;
+		float y = m_OriginalCameraPosition.y + Bobcurve.Evaluate(m_CyclePositionY) * VerticalBobRange;
+		m_CyclePositionX += speed * Time.deltaTime / m_BobBaseInterval;
+		m_CyclePositionY += speed * Time.deltaTime / m_BobBaseInterval * VerticaltoHorizontalRatio;
+		if (m_CyclePositionX > m_Time)
+		{
+			m_CyclePositionX -= m_Time;
+		}
+		if (m_CyclePositionY > m_Time)
+		{
+			m_CyclePositionY -= m_Time;
+		}
+		return new Vector3(x, y, 0f);
+	}
+}
-- 
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