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AbstractConcept 2022-09-13 00:36:34 -05:00
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Library/PackageCache/com.unity.2d.animation@3.2.6/Editor/SkinningModule/BoneDrawingUtility.cs Normal file
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using UnityEngine;
namespace UnityEditor.U2D.Animation
{
internal static class BoneDrawingUtility
{
public static float GetBoneRadius(Vector3 position, float scale = 1.0f)
{
if (Camera.current != null)
{
return 0.15f * scale * HandleUtility.GetHandleSize(position);
}
return 10f * scale / Handles.matrix.GetColumn(0).magnitude;
}
public static void DrawBoneNode(Vector3 position, Vector3 forward, Color color, float scale = 1.0f)
{
Color c = Handles.color;
Handles.color = color;
Handles.DrawSolidDisc(position, -forward, GetBoneRadius(position, scale) * 0.3f);
Handles.color = c;
}
public static void DrawBone(Vector3 position, Vector3 endPosition, Vector3 forward, Color color, float scale = 1.0f)
{
Color c = Handles.color;
Handles.color = color;
var right = Vector3.right;
var v = endPosition - position;
if (v.sqrMagnitude != 0)
right = v.normalized;
var up = Vector3.Cross(right, forward).normalized;
var radius = GetBoneRadius(position, scale) * 0.5f;
var numSamples = 12;
if (v.sqrMagnitude <= radius * radius)
DrawingUtility.DrawSolidArc(position, -forward, up, 360f, radius, numSamples * 2);
else
{
DrawingUtility.DrawSolidArc(position, -forward, up, 180f, radius, numSamples);
DrawingUtility.DrawLine(position, endPosition, forward, radius * 2f, 0f);
}
Handles.color = c;
}
public static void DrawBoneOutline(Vector3 position, Vector3 endPosition, Vector3 forward, Color color, float outlineScale = 1.35f, float scale = 1.0f)
{
outlineScale = Mathf.Max(1f, outlineScale);
Color c = Handles.color;
Handles.color = color;
var right = Vector3.right;
var v = endPosition - position;
if (v.sqrMagnitude != 0)
right = v.normalized;
var up = Vector3.Cross(right, forward).normalized;
var radius = GetBoneRadius(position, scale) * 0.5f;
var outlineWidth = radius * (outlineScale - 1f);
var numSamples = 12;
if (v.sqrMagnitude <= radius * radius)
DrawingUtility.DrawSolidArc(position, -forward, up, 360f, radius, outlineScale, numSamples * 2);
else
{
DrawingUtility.DrawSolidArc(position, -forward, up, 180f, radius, outlineScale, numSamples);
DrawingUtility.DrawSolidArc(endPosition, -forward, -up, 180f, outlineWidth, 0f, numSamples);
DrawingUtility.DrawLine(position + up * (radius + outlineWidth * 0.5f), endPosition + up * outlineWidth * 0.5f, forward, outlineWidth, outlineWidth);
DrawingUtility.DrawLine(position - up * (radius + outlineWidth * 0.5f), endPosition - up * outlineWidth * 0.5f, forward, outlineWidth, outlineWidth);
}
Handles.color = c;
}
}
}