83 lines
4.3 KiB
C#
83 lines
4.3 KiB
C#
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namespace Dreamteck.Splines.Editor
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{
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using UnityEngine;
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using UnityEditor;
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public static class SplineComputerEditorHandles
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{
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private static SplineSample evalResult = new SplineSample();
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public enum SplineSliderGizmo { ForwardTriangle, BackwardTriangle, DualArrow, Rectangle, Circle }
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public static bool Slider(SplineComputer spline, ref double percent, Color color, string text = "", SplineSliderGizmo gizmo = SplineSliderGizmo.Rectangle, float buttonSize = 1f)
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{
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Camera cam = SceneView.currentDrawingSceneView.camera;
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spline.Evaluate(percent, ref evalResult);
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float size = HandleUtility.GetHandleSize(evalResult.position);
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Handles.color = new Color(color.r, color.g, color.b, 0.4f);
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Handles.DrawSolidDisc(evalResult.position, cam.transform.position - evalResult.position, size * 0.2f * buttonSize);
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Handles.color = Color.white;
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if ((color.r + color.g + color.b + color.a) / 4f >= 0.9f) Handles.color = Color.black;
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Vector3 center = evalResult.position;
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Vector2 screenPosition = HandleUtility.WorldToGUIPoint(center);
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screenPosition.y += 20f;
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Vector3 localPos = cam.transform.InverseTransformPoint(center);
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if (text != "" && localPos.z > 0f)
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{
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Handles.BeginGUI();
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DreamteckEditorGUI.Label(new Rect(screenPosition.x - 120 + text.Length * 4, screenPosition.y, 120, 25), text);
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Handles.EndGUI();
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}
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bool buttonClick = SplineEditorHandles.SliderButton(center, false, Color.white, 0.3f);
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Vector3 lookAtCamera = (cam.transform.position - evalResult.position).normalized;
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Vector3 right = Vector3.Cross(lookAtCamera, evalResult.forward).normalized * size * 0.1f * buttonSize;
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Vector3 front = Vector3.forward;
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switch (gizmo)
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{
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case SplineSliderGizmo.BackwardTriangle:
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center += evalResult.forward * size * 0.06f * buttonSize;
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front = center - evalResult.forward * size * 0.2f * buttonSize;
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Handles.DrawLine(center + right, front);
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Handles.DrawLine(front, center - right);
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Handles.DrawLine(center - right, center + right);
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break;
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case SplineSliderGizmo.ForwardTriangle:
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center -= evalResult.forward * size * 0.06f * buttonSize;
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front = center + evalResult.forward * size * 0.2f * buttonSize;
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Handles.DrawLine(center + right, front);
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Handles.DrawLine(front, center - right);
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Handles.DrawLine(center - right, center + right);
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break;
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case SplineSliderGizmo.DualArrow:
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center += evalResult.forward * size * 0.025f * buttonSize;
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front = center + evalResult.forward * size * 0.17f * buttonSize;
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Handles.DrawLine(center + right, front);
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Handles.DrawLine(front, center - right);
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Handles.DrawLine(center - right, center + right);
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center -= evalResult.forward * size * 0.05f * buttonSize;
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front = center - evalResult.forward * size * 0.17f * buttonSize;
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Handles.DrawLine(center + right, front);
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Handles.DrawLine(front, center - right);
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Handles.DrawLine(center - right, center + right);
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break;
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case SplineSliderGizmo.Rectangle:
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break;
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case SplineSliderGizmo.Circle:
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Handles.DrawWireDisc(center, lookAtCamera, 0.13f * size * buttonSize);
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break;
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}
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Vector3 lastPos = evalResult.position;
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Handles.color = Color.clear;
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var lookRotation = Quaternion.LookRotation(cam.transform.position - evalResult.position);
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evalResult.position = SplineEditorHandles.FreeMoveHandle(evalResult.position, size * 0.2f * buttonSize, Vector3.zero, Handles.CircleHandleCap);
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if (evalResult.position != lastPos) percent = spline.Project(evalResult.position).percent;
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Handles.color = Color.white;
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return buttonClick;
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}
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}
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}
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