去掉obi，使用自写绳索
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@@ -1,271 +0,0 @@
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using UnityEngine;
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using UnityEditor;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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namespace Obi
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{
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public class ObiPathHandles
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{
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static int splineSelectorHash = "ObiPathSelectorHash".GetHashCode();
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const int minSelectionDistance = 5;
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static Vector2 startPos;
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static Vector2 currentPos;
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static bool dragging = false;
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static Rect marquee;
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public static bool SplineCPSelector(ObiPath path, bool[] selectionStatus)
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{
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int controlID = GUIUtility.GetControlID(splineSelectorHash, FocusType.Passive);
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int selectedCPIndex = -1;
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bool selectionStatusChanged = false;
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// select vertex on mouse click:
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switch (Event.current.GetTypeForControl(controlID))
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{
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case EventType.Layout:
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case EventType.MouseMove:
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float minSqrDistance = System.Single.MaxValue;
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float sqrMinSelectionDistance = minSelectionDistance * minSelectionDistance;
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for (int i = 0; i < path.ControlPointCount; i++)
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{
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// get particle position in gui space:
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Vector2 pos = HandleUtility.WorldToGUIPoint(path.points[i].position);
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// get distance from mouse position to particle position:
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float sqrDistance = Vector2.SqrMagnitude(Event.current.mousePosition - pos);
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// check if this control point is closer to the cursor that any previously considered point.
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if (sqrDistance < sqrMinSelectionDistance && sqrDistance < minSqrDistance)
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{
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minSqrDistance = sqrDistance;
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}
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}
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HandleUtility.AddControl(controlID, Mathf.Sqrt(minSqrDistance));
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break;
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case EventType.MouseDown:
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marquee.Set(0, 0, 0, 0);
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startPos = Event.current.mousePosition;
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if (Event.current.button == 0)
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{
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if (HandleUtility.nearestControl == controlID)
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{
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GUIUtility.hotControl = controlID;
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// If the user is pressing shift or ctrl, accumulate selection.
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if ((Event.current.modifiers & (EventModifiers.Shift | EventModifiers.Control)) == 0 && (Event.current.modifiers & EventModifiers.Alt) == 0)
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{
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for (int i = 0; i < selectionStatus.Length; i++)
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selectionStatus[i] = false;
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selectionStatusChanged = true;
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}
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minSqrDistance = System.Single.MaxValue;
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sqrMinSelectionDistance = minSelectionDistance * minSelectionDistance;
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for (int i = 0; i < path.ControlPointCount; i++)
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{
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// get particle position in gui space:
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Vector2 pos = HandleUtility.WorldToGUIPoint(path.points[i].position);
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// get distance from mouse position to particle position:
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float sqrDistance = Vector2.SqrMagnitude(startPos - pos);
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// check if this control point is closer to the cursor that any previously considered point.
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if (sqrDistance < sqrMinSelectionDistance && sqrDistance < minSqrDistance)
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{
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minSqrDistance = sqrDistance;
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selectedCPIndex = i;
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}
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}
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if (selectedCPIndex >= 0)
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{ // toggle particle selection status.
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selectionStatus[selectedCPIndex] = !selectionStatus[selectedCPIndex];
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selectionStatusChanged = true;
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// Prevent spline deselection if we have selected a particle:
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Event.current.Use();
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}
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}
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else if ((Event.current.modifiers & (EventModifiers.Shift | EventModifiers.Control)) == 0 && (Event.current.modifiers & EventModifiers.Alt) == 0)
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{
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for (int i = 0; i < selectionStatus.Length; i++)
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selectionStatus[i] = false;
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selectionStatusChanged = true;
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}
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}
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break;
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case EventType.MouseDrag:
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if (Event.current.button == 0 && (Event.current.modifiers & EventModifiers.Alt) == 0)
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{
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currentPos = Event.current.mousePosition;
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if (!dragging && Vector2.Distance(startPos, currentPos) > 5)
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{
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dragging = true;
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}
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if (dragging)
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{
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GUIUtility.hotControl = controlID;
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Event.current.Use();
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}
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//update marquee rect:
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float left = Mathf.Min(startPos.x, currentPos.x);
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float right = Mathf.Max(startPos.x, currentPos.x);
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float bottom = Mathf.Min(startPos.y, currentPos.y);
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float top = Mathf.Max(startPos.y, currentPos.y);
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marquee = new Rect(left, bottom, right - left, top - bottom);
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}
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break;
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case EventType.MouseUp:
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if (GUIUtility.hotControl == controlID)
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{
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dragging = false;
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for (int i = 0; i < path.ControlPointCount; i++)
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{
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// get particle position in gui space:
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Vector2 pos = HandleUtility.WorldToGUIPoint(path.points[i].position);
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if (pos.x > marquee.xMin && pos.x < marquee.xMax && pos.y > marquee.yMin && pos.y < marquee.yMax)
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{
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selectionStatus[i] = true;
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selectionStatusChanged = true;
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}
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}
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GUIUtility.hotControl = 0;
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Event.current.Use();
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}
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break;
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case EventType.Repaint:
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if (dragging)
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{
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GUISkin oldSkin = GUI.skin;
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GUI.skin = EditorGUIUtility.GetBuiltinSkin(EditorSkin.Scene);
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Handles.BeginGUI();
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GUI.Box(new Rect(marquee.xMin, marquee.yMin, marquee.width, marquee.height), "");
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Handles.EndGUI();
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GUI.skin = oldSkin;
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}
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break;
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}
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return selectionStatusChanged;
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}
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private static void DrawControlPointArcs(ObiPath path, float thicknessScale)
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{
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for (int i = 0; i < path.ControlPointCount; ++i)
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{
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Vector3 position = path.points[i].position;
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Vector3 tangent = path.points.GetTangent(i);
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Vector3 right = Vector3.Cross(tangent, path.normals[i]).normalized;
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float thickness = path.thicknesses[i] * thicknessScale + 0.05f;
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Handles.DrawWireArc(position, tangent, right, -180, thickness);
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}
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}
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private static void DrawPathPolylines(Vector3[] samples, Vector3[] leftSamples, Vector3[] rightSamples, Vector3[] upSamples, bool drawOrientation)
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{
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Handles.DrawPolyLine(samples);
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if (drawOrientation)
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{
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Handles.DrawPolyLine(leftSamples);
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Handles.DrawPolyLine(upSamples);
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Handles.DrawPolyLine(rightSamples);
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}
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}
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public static void DrawPathHandle(ObiPath path, Matrix4x4 referenceFrame, float thicknessScale, int resolution, bool drawOrientation = true)
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{
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if (path == null || path.GetSpanCount() == 0) return;
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Matrix4x4 prevMatrix = Handles.matrix;
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Handles.matrix = referenceFrame;
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// Draw the curve:
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int curveSegments = path.GetSpanCount() * resolution;
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Vector3[] samples = new Vector3[curveSegments + 1];
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Vector3[] leftSamples = new Vector3[curveSegments + 1];
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Vector3[] rightSamples = new Vector3[curveSegments + 1];
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Vector3[] upSamples = new Vector3[curveSegments + 1];
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for (int i = 0; i <= curveSegments; ++i)
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{
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float mu = i / (float)curveSegments;
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samples[i] = path.points.GetPositionAtMu(path.Closed,mu);
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if (drawOrientation)
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{
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Vector3 tangent = path.points.GetTangentAtMu(path.Closed,mu);
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Vector3 right = Vector3.Cross(tangent, path.normals.GetAtMu(path.Closed,mu)).normalized;
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Vector3 up = Vector3.Cross(right, tangent).normalized;
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float thickness = path.thicknesses.GetAtMu(path.Closed,mu) * thicknessScale + 0.05f;
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leftSamples[i] = samples[i] - right * thickness;
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rightSamples[i] = samples[i] + right * thickness;
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upSamples[i] = samples[i] + up * thickness;
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if (i % 5 == 0)
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{
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Handles.DrawLine(leftSamples[i], rightSamples[i]);
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Handles.DrawLine(samples[i], samples[i] + up * thickness);
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}
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}
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}
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if (drawOrientation)
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DrawControlPointArcs(path, thicknessScale);
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DrawPathPolylines(samples, leftSamples, rightSamples, upSamples, drawOrientation);
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DrawPathPolylines(samples, leftSamples, rightSamples, upSamples, drawOrientation);
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Handles.matrix = prevMatrix;
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}
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}
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}
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