mirror of
https://github.com/RHeavenStudioPlus/HeavenStudioPlus.git
synced 2024-11-30 13:33:07 +00:00
219 lines
7.8 KiB
C#
219 lines
7.8 KiB
C#
using UnityEngine;
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using UnityEditor;
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using UnityEditorInternal;
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namespace NaughtyBezierCurves.Editor
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{
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[CustomEditor(typeof(BezierCurve3D))]
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[CanEditMultipleObjects]
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public class BezierCurve3DEditor : UnityEditor.Editor
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{
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private const float AddButtonWidth = 80f;
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private const float RemoveButtonWidth = 19f;
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private BezierCurve3D curve;
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private ReorderableList keyPoints;
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private bool showPoints = true;
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[MenuItem("GameObject/Create Other/Naughty Bezier Curve")]
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private static void CreateBezeirCurve()
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{
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BezierCurve3D curve = new GameObject("Bezier Curve", typeof(BezierCurve3D)).GetComponent<BezierCurve3D>();
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Vector3 position = Vector3.zero;
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if (Camera.current != null)
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{
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position = Camera.current.transform.position + Camera.current.transform.forward * 10f;
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}
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curve.transform.position = position;
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BezierCurve3DEditor.AddDefaultPoints(curve);
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Undo.RegisterCreatedObjectUndo(curve.gameObject, "Create Curve");
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Selection.activeGameObject = curve.gameObject;
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}
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private static void AddDefaultPoints(BezierCurve3D curve)
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{
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BezierPoint3D startPoint = curve.AddKeyPoint();
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startPoint.LocalPosition = new Vector3(-1f, 0f, 0f);
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startPoint.LeftHandleLocalPosition = new Vector3(-0.35f, -0.35f, 0f);
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BezierPoint3D endPoint = curve.AddKeyPoint();
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endPoint.LocalPosition = new Vector3(1f, 0f, 0f);
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endPoint.LeftHandleLocalPosition = new Vector3(-0.35f, 0.35f, 0f);
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}
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protected virtual void OnEnable()
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{
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this.curve = (BezierCurve3D)this.target;
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if (curve.KeyPointsCount < 2)
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{
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while (curve.KeyPointsCount != 0)
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{
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curve.RemoveKeyPointAt(this.curve.KeyPointsCount - 1);
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}
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BezierCurve3DEditor.AddDefaultPoints(this.curve);
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}
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this.keyPoints = new ReorderableList(this.serializedObject, serializedObject.FindProperty("keyPoints"), true, true, false, false);
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this.keyPoints.drawElementCallback = this.DrawElementCallback;
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this.keyPoints.drawHeaderCallback =
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(Rect rect) =>
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{
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EditorGUI.LabelField(rect, string.Format("Points: {0}", this.keyPoints.serializedProperty.arraySize), EditorStyles.boldLabel);
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};
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}
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public override void OnInspectorGUI()
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{
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base.OnInspectorGUI();
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this.serializedObject.Update();
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if (GUILayout.Button("Log Length"))
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{
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Debug.Log(this.curve.GetApproximateLength());
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}
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this.showPoints = EditorGUILayout.Foldout(this.showPoints, "Key Points");
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if (this.showPoints)
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{
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if (GUILayout.Button("Add Point"))
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{
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AddKeyPointAt(this.curve, this.curve.KeyPointsCount);
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}
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if (GUILayout.Button("Add Point and Select"))
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{
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var point = AddKeyPointAt(this.curve, this.curve.KeyPointsCount);
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Selection.activeGameObject = point.gameObject;
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}
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this.keyPoints.DoLayoutList();
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}
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this.serializedObject.ApplyModifiedProperties();
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}
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protected virtual void OnSceneGUI()
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{
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BezierCurve3DEditor.DrawPointsSceneGUI(this.curve);
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}
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private void DrawElementCallback(Rect rect, int index, bool isActive, bool isFocused)
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{
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var element = this.keyPoints.serializedProperty.GetArrayElementAtIndex(index);
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rect.y += 2;
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// Draw "Add Before" button
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if (GUI.Button(new Rect(rect.x, rect.y, AddButtonWidth, EditorGUIUtility.singleLineHeight), new GUIContent("Add Before")))
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{
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AddKeyPointAt(this.curve, index);
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}
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// Draw point name
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EditorGUI.PropertyField(
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new Rect(rect.x + AddButtonWidth + 5f, rect.y, rect.width - AddButtonWidth * 2f - 35f, EditorGUIUtility.singleLineHeight), element, GUIContent.none);
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// Draw "Add After" button
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if (GUI.Button(new Rect(rect.width - AddButtonWidth + 8f, rect.y, AddButtonWidth, EditorGUIUtility.singleLineHeight), new GUIContent("Add After")))
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{
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AddKeyPointAt(this.curve, index + 1);
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}
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// Draw remove button
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if (this.curve.KeyPointsCount > 2)
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{
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if (GUI.Button(new Rect(rect.width + 14f, rect.y, RemoveButtonWidth, EditorGUIUtility.singleLineHeight), new GUIContent("x")))
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{
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RemoveKeyPointAt(this.curve, index);
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}
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}
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}
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public static void DrawPointsSceneGUI(BezierCurve3D curve, BezierPoint3D exclude = null)
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{
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for (int i = 0; i < curve.KeyPointsCount; i++)
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{
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if (curve.KeyPoints[i] == exclude)
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{
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continue;
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}
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BezierPoint3DEditor.handleCapSize = BezierPoint3DEditor.CircleCapSize;
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BezierPoint3DEditor.DrawPointSceneGUI(curve.KeyPoints[i]);
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}
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}
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private static void RenamePoints(BezierCurve3D curve)
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{
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for (int i = 0; i < curve.KeyPointsCount; i++)
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{
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curve.KeyPoints[i].name = "Point " + i;
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}
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}
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private static BezierPoint3D AddKeyPointAt(BezierCurve3D curve, int index)
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{
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BezierPoint3D newPoint = new GameObject("Point " + curve.KeyPointsCount, typeof(BezierPoint3D)).GetComponent<BezierPoint3D>();
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newPoint.transform.parent = curve.transform;
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newPoint.transform.localRotation = Quaternion.identity;
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newPoint.Curve = curve;
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if (curve.KeyPointsCount == 0 || curve.KeyPointsCount == 1)
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{
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newPoint.LocalPosition = Vector3.zero;
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}
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else
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{
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if (index == 0)
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{
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newPoint.Position = (curve.KeyPoints[0].Position - curve.KeyPoints[1].Position).normalized + curve.KeyPoints[0].Position;
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}
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else if (index == curve.KeyPointsCount)
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{
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newPoint.Position = (curve.KeyPoints[index - 1].Position - curve.KeyPoints[index - 2].Position).normalized + curve.KeyPoints[index - 1].Position;
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}
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else
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{
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newPoint.Position = BezierCurve3D.GetPointOnCubicCurve(0.5f, curve.KeyPoints[index - 1], curve.KeyPoints[index]);
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}
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}
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Undo.IncrementCurrentGroup();
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Undo.RegisterCreatedObjectUndo(newPoint.gameObject, "Create Point");
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Undo.RegisterCompleteObjectUndo(curve, "Save Curve");
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curve.KeyPoints.Insert(index, newPoint);
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RenamePoints(curve);
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//Undo.RegisterCompleteObjectUndo(curve, "Save Curve");
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return newPoint;
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}
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private static bool RemoveKeyPointAt(BezierCurve3D curve, int index)
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{
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if (curve.KeyPointsCount < 2)
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{
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return false;
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}
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var point = curve.KeyPoints[index];
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Undo.IncrementCurrentGroup();
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Undo.RegisterCompleteObjectUndo(curve, "Save Curve");
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curve.KeyPoints.RemoveAt(index);
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RenamePoints(curve);
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//Undo.RegisterCompleteObjectUndo(curve, "Save Curve");
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Undo.DestroyObjectImmediate(point.gameObject);
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return true;
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}
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}
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}
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