461 lines
19 KiB
C#
461 lines
19 KiB
C#
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#if UNITY_EDITOR
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using System.Globalization;
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using System.Text;
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using Sirenix.OdinInspector;
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using Sirenix.OdinInspector.Editor;
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using UnityEditor;
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using UnityEngine;
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namespace SLSUtilities.FunctionalAnimation
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{
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/// <summary>
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/// 用于分析 AnimationClip 指定时间区间内 Root Motion 位移与旋转的编辑器工具。
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/// 工具只读取动画曲线，不会修改 AnimationClip 或其它资产。
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/// </summary>
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public class RootMotionCalibrationWindow : OdinEditorWindow
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{
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private const float MinimumSampleRate = 30f;
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private const float MinimumIntervalDuration = 0.0001f;
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[Title("Root Motion Calibration")]
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[ShowInInspector, AssetsOnly, PropertyOrder(-100)]
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[LabelText("Animation Clip")]
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[OnValueChanged(nameof(OnAnimationClipChanged))]
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private AnimationClip animationClip;
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[ShowInInspector, ReadOnly, PropertyOrder(-99)]
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[LabelText("Clip Duration")]
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private float ClipDuration => animationClip != null ? animationClip.length : 0f;
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[ShowInInspector, ReadOnly, PropertyOrder(-98)]
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[LabelText("Frame Rate")]
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private float FrameRate => animationClip != null ? animationClip.frameRate : 0f;
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[ShowInInspector, PropertyOrder(-90)]
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[OnInspectorGUI]
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private void DrawIntervalControls()
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{
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if (animationClip == null)
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{
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EditorGUILayout.HelpBox("请拖入一个 AnimationClip。", MessageType.Info);
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return;
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}
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float duration = Mathf.Max(animationClip.length, MinimumIntervalDuration);
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float start = Mathf.Clamp(analysisRange.x, 0f, duration);
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float end = Mathf.Clamp(analysisRange.y, 0f, duration);
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EditorGUILayout.LabelField("Analysis Interval", EditorStyles.boldLabel);
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EditorGUILayout.BeginHorizontal();
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EditorGUILayout.LabelField("Start", GUILayout.Width(45f));
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start = EditorGUILayout.FloatField(start);
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EditorGUILayout.LabelField("End", GUILayout.Width(35f));
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end = EditorGUILayout.FloatField(end);
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EditorGUILayout.EndHorizontal();
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EditorGUILayout.MinMaxSlider("Range", ref start, ref end, 0f, duration);
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EditorGUILayout.BeginHorizontal();
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if (GUILayout.Button("Whole Clip"))
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{
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start = 0f;
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end = duration;
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}
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if (GUILayout.Button("Analyze"))
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{
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analysisRange = new Vector2(start, end);
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Analyze();
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}
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EditorGUILayout.EndHorizontal();
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start = Mathf.Clamp(start, 0f, duration);
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end = Mathf.Clamp(end, 0f, duration);
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if (end < start)
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{
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(start, end) = (end, start);
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}
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analysisRange = new Vector2(start, end);
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DrawIntervalPreview(duration, start, end);
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}
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[ShowInInspector, PropertyOrder(-80)]
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[ReadOnly, LabelText("Curve Status")]
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private string CurveStatus => string.IsNullOrEmpty(curveStatus) ? "尚未分析" : curveStatus;
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[ShowInInspector, PropertyOrder(-70)]
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[ReadOnly, LabelText("Interval")]
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private string IntervalText =>
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$"{analysisRange.x.ToString("F4", CultureInfo.InvariantCulture)} s - " +
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$"{analysisRange.y.ToString("F4", CultureInfo.InvariantCulture)} s";
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[TitleGroup("Root Motion Result", Order = 0)]
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[ShowInInspector, ReadOnly, LabelText("Interval Duration")]
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private float IntervalDuration => result.intervalDuration;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Start Position")]
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private Vector3 StartPosition => result.startPosition;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("End Position")]
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private Vector3 EndPosition => result.endPosition;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Displacement")]
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private Vector3 Displacement => result.displacement;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Horizontal Displacement")]
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private Vector3 HorizontalDisplacement => result.horizontalDisplacement;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Path Distance")]
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private float PathDistance => result.pathDistance;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Average Velocity")]
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private Vector3 AverageVelocity => result.averageVelocity;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Average Horizontal Speed")]
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private float AverageHorizontalSpeed => result.averageHorizontalSpeed;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Peak Horizontal Speed")]
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private float PeakHorizontalSpeed => result.peakHorizontalSpeed;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Rotation Delta")]
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private float RotationDelta => result.rotationDelta;
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[TitleGroup("Root Motion Result")]
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[ShowInInspector, ReadOnly, LabelText("Average Angular Speed")]
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private float AverageAngularSpeed => result.averageAngularSpeed;
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[TitleGroup("Root Motion Result")]
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[Button("Copy Result")]
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private void CopyResult()
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{
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if (!hasAnalysis)
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{
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Analyze();
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}
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GUIUtility.systemCopyBuffer = BuildResultText();
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}
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[TitleGroup("Root Motion Result")]
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[Button("Copy CSV Row")]
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private void CopyCsvRow()
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{
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if (!hasAnalysis)
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{
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Analyze();
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}
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GUIUtility.systemCopyBuffer = BuildCsvRow();
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}
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private Vector2 analysisRange;
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private string curveStatus;
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private bool hasAnalysis;
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private CalibrationResult result;
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private RootMotionCurves curves;
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[MenuItem("Tools/SLS Utilities/Functional Animation/Root Motion Calibration")]
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private static void OpenWindow()
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{
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var window = GetWindow<RootMotionCalibrationWindow>();
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window.titleContent = new GUIContent("Root Motion Calibration");
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window.Show();
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}
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/// <summary>
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/// 双击 AnimationClip 时直接打开校准窗口，并自动填入该动画。
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/// </summary>
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[UnityEditor.Callbacks.OnOpenAsset(1)]
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private static bool OnOpenAsset(int instanceId, int line)
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{
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var clip = EditorUtility.InstanceIDToObject(instanceId) as AnimationClip;
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if (clip == null)
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{
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return false;
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}
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OpenWindow();
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var window = GetWindow<RootMotionCalibrationWindow>();
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window.animationClip = clip;
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window.OnAnimationClipChanged();
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return true;
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}
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private void OnAnimationClipChanged()
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{
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hasAnalysis = false;
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result = default;
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curveStatus = string.Empty;
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if (animationClip == null)
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{
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analysisRange = Vector2.zero;
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return;
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}
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analysisRange = new Vector2(0f, animationClip.length);
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Analyze();
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}
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private void DrawIntervalPreview(float duration, float start, float end)
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{
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Rect rect = GUILayoutUtility.GetRect(GUIContent.none, GUIStyle.none, GUILayout.Height(28f));
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EditorGUI.DrawRect(rect, new Color(0.18f, 0.18f, 0.18f));
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float startX = Mathf.Lerp(rect.x, rect.xMax, start / duration);
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float endX = Mathf.Lerp(rect.x, rect.xMax, end / duration);
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EditorGUI.DrawRect(
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new Rect(startX, rect.y + 4f, Mathf.Max(1f, endX - startX), rect.height - 8f),
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new Color(0.25f, 0.65f, 1f, 0.8f));
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GUI.Label(new Rect(rect.x + 4f, rect.y + 4f, rect.width - 8f, rect.height - 8f),
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"Selected Root Motion Interval", EditorStyles.centeredGreyMiniLabel);
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}
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private void Analyze()
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{
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if (animationClip == null)
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{
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hasAnalysis = false;
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return;
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}
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float duration = Mathf.Max(animationClip.length, MinimumIntervalDuration);
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float start = Mathf.Clamp(analysisRange.x, 0f, duration);
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float end = Mathf.Clamp(analysisRange.y, 0f, duration);
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if (end < start)
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{
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(start, end) = (end, start);
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}
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analysisRange = new Vector2(start, end);
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curves = RootMotionCurves.Read(animationClip);
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curveStatus = curves.GetStatusText();
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if (!curves.HasPosition)
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{
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hasAnalysis = false;
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result = default;
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return;
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}
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result = CalibrationResult.Calculate(curves, start, end, animationClip.frameRate);
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hasAnalysis = true;
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}
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private string BuildResultText()
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{
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var builder = new StringBuilder();
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builder.AppendLine($"Animation Clip: {animationClip.name}");
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builder.AppendLine($"Interval: {IntervalText}");
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builder.AppendLine($"Interval Duration: {result.intervalDuration:F4} s");
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builder.AppendLine($"Start Position: {FormatVector(result.startPosition)}");
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builder.AppendLine($"End Position: {FormatVector(result.endPosition)}");
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builder.AppendLine($"Displacement: {FormatVector(result.displacement)}");
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builder.AppendLine($"Horizontal Displacement: {FormatVector(result.horizontalDisplacement)}");
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builder.AppendLine($"Path Distance: {result.pathDistance:F4} m");
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builder.AppendLine($"Average Velocity: {FormatVector(result.averageVelocity)} m/s");
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builder.AppendLine($"Average Horizontal Speed: {result.averageHorizontalSpeed:F4} m/s");
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builder.AppendLine($"Peak Horizontal Speed: {result.peakHorizontalSpeed:F4} m/s");
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builder.AppendLine($"Rotation Delta: {result.rotationDelta:F4} deg");
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builder.AppendLine($"Average Angular Speed: {result.averageAngularSpeed:F4} deg/s");
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return builder.ToString();
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}
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private string BuildCsvRow()
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{
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return string.Join(",",
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animationClip.name,
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analysisRange.x.ToString("F4", CultureInfo.InvariantCulture),
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analysisRange.y.ToString("F4", CultureInfo.InvariantCulture),
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result.intervalDuration.ToString("F4", CultureInfo.InvariantCulture),
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result.displacement.x.ToString("F4", CultureInfo.InvariantCulture),
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result.displacement.y.ToString("F4", CultureInfo.InvariantCulture),
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result.displacement.z.ToString("F4", CultureInfo.InvariantCulture),
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result.pathDistance.ToString("F4", CultureInfo.InvariantCulture),
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result.averageHorizontalSpeed.ToString("F4", CultureInfo.InvariantCulture),
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result.peakHorizontalSpeed.ToString("F4", CultureInfo.InvariantCulture),
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result.rotationDelta.ToString("F4", CultureInfo.InvariantCulture),
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result.averageAngularSpeed.ToString("F4", CultureInfo.InvariantCulture));
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}
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private static string FormatVector(Vector3 value)
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{
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return $"({value.x.ToString("F4", CultureInfo.InvariantCulture)}, " +
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$"{value.y.ToString("F4", CultureInfo.InvariantCulture)}, " +
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$"{value.z.ToString("F4", CultureInfo.InvariantCulture)})";
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}
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private struct RootMotionCurves
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{
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public AnimationCurve positionX;
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public AnimationCurve positionY;
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public AnimationCurve positionZ;
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public AnimationCurve rotationX;
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public AnimationCurve rotationY;
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public AnimationCurve rotationZ;
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public AnimationCurve rotationW;
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public bool HasPosition => positionX != null || positionY != null || positionZ != null;
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public bool HasRotation => rotationX != null || rotationY != null || rotationZ != null || rotationW != null;
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public static RootMotionCurves Read(AnimationClip clip)
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{
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var bindings = AnimationUtility.GetCurveBindings(clip);
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var result = new RootMotionCurves
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{
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positionX = FindCurve(clip, bindings, "RootT.x", "m_LocalPosition.x", "localPosition.x"),
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positionY = FindCurve(clip, bindings, "RootT.y", "m_LocalPosition.y", "localPosition.y"),
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positionZ = FindCurve(clip, bindings, "RootT.z", "m_LocalPosition.z", "localPosition.z"),
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rotationX = FindCurve(clip, bindings, "RootQ.x", "m_LocalRotation.x", "localRotation.x"),
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rotationY = FindCurve(clip, bindings, "RootQ.y", "m_LocalRotation.y", "localRotation.y"),
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rotationZ = FindCurve(clip, bindings, "RootQ.z", "m_LocalRotation.z", "localRotation.z"),
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rotationW = FindCurve(clip, bindings, "RootQ.w", "m_LocalRotation.w", "localRotation.w")
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};
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return result;
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}
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public string GetStatusText()
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{
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if (!HasPosition)
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{
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return "未找到 RootT 或根节点 Position 曲线，无法进行区间位移分析。";
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}
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return HasRotation
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? "已找到 Root Position 与 Root Rotation 曲线。"
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: "已找到 Root Position 曲线，但未找到 Root Rotation 曲线。";
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}
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public Vector3 EvaluatePosition(float time)
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{
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return new Vector3(
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Evaluate(positionX, time),
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Evaluate(positionY, time),
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Evaluate(positionZ, time));
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}
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public Quaternion EvaluateRotation(float time)
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{
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Quaternion rotation = new Quaternion(
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Evaluate(rotationX, time),
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Evaluate(rotationY, time),
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Evaluate(rotationZ, time),
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rotationW == null ? 1f : Evaluate(rotationW, time));
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return rotation.normalized;
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}
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private static AnimationCurve FindCurve(AnimationClip clip, EditorCurveBinding[] bindings, params string[] propertyNames)
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{
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foreach (var binding in bindings)
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{
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if (!string.IsNullOrEmpty(binding.path))
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|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool matches = false;
|
||
|
|
foreach (string propertyName in propertyNames)
|
||
|
|
{
|
||
|
|
if (binding.propertyName == propertyName)
|
||
|
|
{
|
||
|
|
matches = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (matches)
|
||
|
|
{
|
||
|
|
return AnimationUtility.GetEditorCurve(clip, binding);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
private static float Evaluate(AnimationCurve curve, float time)
|
||
|
|
{
|
||
|
|
return curve == null ? 0f : curve.Evaluate(time);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private struct CalibrationResult
|
||
|
|
{
|
||
|
|
public float intervalDuration;
|
||
|
|
public Vector3 startPosition;
|
||
|
|
public Vector3 endPosition;
|
||
|
|
public Vector3 displacement;
|
||
|
|
public Vector3 horizontalDisplacement;
|
||
|
|
public float pathDistance;
|
||
|
|
public Vector3 averageVelocity;
|
||
|
|
public float averageHorizontalSpeed;
|
||
|
|
public float peakHorizontalSpeed;
|
||
|
|
public float rotationDelta;
|
||
|
|
public float averageAngularSpeed;
|
||
|
|
|
||
|
|
public static CalibrationResult Calculate(RootMotionCurves curves, float start, float end, float frameRate)
|
||
|
|
{
|
||
|
|
float duration = Mathf.Max(end - start, MinimumIntervalDuration);
|
||
|
|
int sampleCount = Mathf.Max(2, Mathf.CeilToInt(duration * Mathf.Max(frameRate, MinimumSampleRate)));
|
||
|
|
Vector3 startPosition = curves.EvaluatePosition(start);
|
||
|
|
Vector3 endPosition = curves.EvaluatePosition(end);
|
||
|
|
Vector3 displacement = endPosition - startPosition;
|
||
|
|
|
||
|
|
float pathDistance = 0f;
|
||
|
|
float peakSpeed = 0f;
|
||
|
|
float angleSum = 0f;
|
||
|
|
Vector3 previousPosition = startPosition;
|
||
|
|
Quaternion previousRotation = curves.EvaluateRotation(start);
|
||
|
|
|
||
|
|
for (int i = 1; i <= sampleCount; i++)
|
||
|
|
{
|
||
|
|
float t = Mathf.Lerp(start, end, i / (float)sampleCount);
|
||
|
|
Vector3 currentPosition = curves.EvaluatePosition(t);
|
||
|
|
Quaternion currentRotation = curves.EvaluateRotation(t);
|
||
|
|
float sampleDuration = duration / sampleCount;
|
||
|
|
Vector3 delta = currentPosition - previousPosition;
|
||
|
|
float horizontalDistance = new Vector3(delta.x, 0f, delta.z).magnitude;
|
||
|
|
|
||
|
|
pathDistance += delta.magnitude;
|
||
|
|
peakSpeed = Mathf.Max(peakSpeed, horizontalDistance / sampleDuration);
|
||
|
|
angleSum += Quaternion.Angle(previousRotation, currentRotation);
|
||
|
|
previousPosition = currentPosition;
|
||
|
|
previousRotation = currentRotation;
|
||
|
|
}
|
||
|
|
|
||
|
|
Vector3 horizontalDisplacement = new Vector3(displacement.x, 0f, displacement.z);
|
||
|
|
float rotationDelta = Quaternion.Angle(curves.EvaluateRotation(start), curves.EvaluateRotation(end));
|
||
|
|
|
||
|
|
return new CalibrationResult
|
||
|
|
{
|
||
|
|
intervalDuration = duration,
|
||
|
|
startPosition = startPosition,
|
||
|
|
endPosition = endPosition,
|
||
|
|
displacement = displacement,
|
||
|
|
horizontalDisplacement = horizontalDisplacement,
|
||
|
|
pathDistance = pathDistance,
|
||
|
|
averageVelocity = displacement / duration,
|
||
|
|
averageHorizontalSpeed = horizontalDisplacement.magnitude / duration,
|
||
|
|
peakHorizontalSpeed = peakSpeed,
|
||
|
|
rotationDelta = rotationDelta,
|
||
|
|
averageAngularSpeed = angleSum / duration
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|