350 lines
14 KiB
C#
350 lines
14 KiB
C#
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using UnityEditor;
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using UnityEngine;
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using UnityEditor.Sprites;
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using System.Collections;
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using System.Collections.Generic;
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namespace UnityEditor.U2D
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{
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public class SpriteShapeHandleUtility
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{
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private class Styles
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{
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public Texture playheadTex;
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public Texture handRightTex;
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public Texture handLeftTex;
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}
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private static Styles s_Styles;
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private static Styles styles
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{
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get
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{
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if (s_Styles == null)
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s_Styles = new Styles();
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return s_Styles;
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}
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}
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static private Material s_HandleWireMaterial;
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private static Material handleWireMaterial
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{
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get
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{
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if (!s_HandleWireMaterial)
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s_HandleWireMaterial = (Material)EditorGUIUtility.LoadRequired("SceneView/2DHandleLines.mat");
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return s_HandleWireMaterial;
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}
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}
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private static Material s_FillTextureMaterial;
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private static Material fillTextureMaterial
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{
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get
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{
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if (s_FillTextureMaterial == null)
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{
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s_FillTextureMaterial = new Material(Shader.Find("Hidden/InternalSpritesInspector"));
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s_FillTextureMaterial.hideFlags = HideFlags.DontSave;
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}
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s_FillTextureMaterial.SetFloat("_AdjustLinearForGamma", PlayerSettings.colorSpace == ColorSpace.Linear ? 1.0f : 0.0f);
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return s_FillTextureMaterial;
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}
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}
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private static Mesh s_TextureCapMesh;
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private static Mesh textureCapMesh
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{
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get
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{
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if (s_TextureCapMesh == null)
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{
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s_TextureCapMesh = new Mesh();
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s_TextureCapMesh.hideFlags = HideFlags.DontSave;
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s_TextureCapMesh.vertices = new Vector3[] {
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new Vector2(-0.5f, -0.5f),
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new Vector2(-0.5f, 0.5f),
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new Vector2(0.5f, 0.5f),
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new Vector2(-0.5f, -0.5f),
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new Vector2(0.5f, 0.5f),
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new Vector2(0.5f, -0.5f)
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};
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s_TextureCapMesh.uv = new Vector2[] {
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Vector3.zero,
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Vector3.up,
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Vector3.up + Vector3.right,
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Vector3.zero,
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Vector3.up + Vector3.right,
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Vector3.right
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};
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s_TextureCapMesh.SetTriangles(new int[] { 0, 1, 2, 3, 4, 5 }, 0);
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}
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return s_TextureCapMesh;
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}
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}
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private static readonly Vector3[] s_WireArcPoints = new Vector3[60];
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public static float PosToAngle(Vector2 position, Vector2 center, float angleOffset)
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{
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Vector2 dir = (Quaternion.AngleAxis(angleOffset, Vector3.forward) * (position - center)).normalized;
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return Mathf.Atan2(dir.y, dir.x) * Mathf.Rad2Deg;
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}
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public static Vector2 Slider2D(int id, Vector2 position, Vector3 capOffset, Quaternion rotation, float size, Handles.CapFunction drawCapFunction)
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{
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return Handles.Slider2D(id, position, capOffset, Vector3.forward, rotation * Vector3.up, rotation * Vector3.right, size, drawCapFunction, Vector2.zero);
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}
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public static void DrawRangeOutline(float start, float end, float angleOffset, Vector2 center, float radius, float width)
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{
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Vector3 startVec = Quaternion.AngleAxis(start + angleOffset, Vector3.forward) * Vector3.right;
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Vector3 endVec = Quaternion.AngleAxis(end + angleOffset, Vector3.forward) * Vector3.right;
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Handles.DrawWireArc(center, Vector3.forward, startVec, end - start, radius - width);
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Handles.DrawWireArc(center, Vector3.forward, startVec, end - start, radius);
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Handles.DrawLine(startVec * (radius - width) + (Vector3)center, startVec * radius + (Vector3)center);
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Handles.DrawLine(endVec * (radius - width) + (Vector3)center, endVec * radius + (Vector3)center);
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}
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private static void ApplyWireMaterial()
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{
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UnityEngine.Rendering.CompareFunction zTest = UnityEngine.Rendering.CompareFunction.Always;
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ApplyWireMaterial(zTest);
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}
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private static void ApplyWireMaterial(UnityEngine.Rendering.CompareFunction zTest)
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{
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Material mat = handleWireMaterial;
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mat.SetInt("_HandleZTest", (int)zTest);
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mat.SetPass(0);
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}
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static void SetDiscSectionPoints(Vector3[] dest, Vector3 center, Vector3 normal, Vector3 from, float angle, float radius)
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{
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Vector3 fromn = from.normalized;
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Quaternion r = Quaternion.AngleAxis(angle / (float)(dest.Length - 1), normal);
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Vector3 tangent = fromn * radius;
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for (int i = 0; i < dest.Length; i++)
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{
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dest[i] = center + tangent;
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tangent = r * tangent;
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}
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}
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public static void DrawSolidArc(Vector3 center, Vector3 normal, Vector3 from, float angle, float radius, float width)
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{
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if (Event.current.type != EventType.Repaint)
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return;
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SetDiscSectionPoints(s_WireArcPoints, center, normal, from, angle, radius);
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Shader.SetGlobalColor("_HandleColor", Handles.color);
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Shader.SetGlobalFloat("_HandleSize", 1);
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ApplyWireMaterial(Handles.zTest);
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float widthPercentage = 1f - Mathf.Clamp01(width / radius);
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// Draw it twice to ensure backface culling doesn't hide any of the faces
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GL.PushMatrix();
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GL.MultMatrix(Handles.matrix);
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GL.Begin(GL.TRIANGLES);
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for (int i = 1, count = s_WireArcPoints.Length; i < count; ++i)
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{
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Vector3 d1 = s_WireArcPoints[i - 1] - center;
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Vector3 d2 = s_WireArcPoints[i] - center;
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GL.Color(Handles.color);
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GL.Vertex(d1 * widthPercentage + center);
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GL.Vertex(s_WireArcPoints[i - 1]);
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GL.Vertex(s_WireArcPoints[i]);
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GL.Vertex(d1 * widthPercentage + center);
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GL.Vertex(s_WireArcPoints[i]);
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GL.Vertex(d2 * widthPercentage + center);
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GL.Vertex(d1 * widthPercentage + center);
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GL.Vertex(s_WireArcPoints[i]);
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GL.Vertex(s_WireArcPoints[i - 1]);
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GL.Vertex(d1 * widthPercentage + center);
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GL.Vertex(d2 * widthPercentage + center);
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GL.Vertex(s_WireArcPoints[i]);
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}
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GL.End();
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GL.PopMatrix();
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}
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public static void DrawTextureArc(Texture texture, float pixelsPerRadius, Vector3 center, Vector3 normal, Vector3 from, float angle, float radius)
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{
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if (Event.current.type != EventType.Repaint || !texture)
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return;
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SetDiscSectionPoints(s_WireArcPoints, Vector3.zero, normal, from, angle, 0.5f);
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fillTextureMaterial.mainTexture = texture;
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fillTextureMaterial.mainTextureScale = new Vector2(1f, -1f);
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fillTextureMaterial.mainTextureOffset = Vector2.zero;
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fillTextureMaterial.SetPass(0);
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Matrix4x4 matrix = new Matrix4x4();
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matrix.SetTRS(center, Quaternion.identity, new Vector3(radius, radius, 1) * 2f);
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Vector3 texOffset = Vector2.one * 0.5f;
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float scale = pixelsPerRadius / radius;
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GL.PushMatrix();
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GL.LoadPixelMatrix();
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GL.MultMatrix(matrix);
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GL.Begin(GL.TRIANGLES);
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for (int i = 1, count = s_WireArcPoints.Length; i < count; ++i)
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{
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GL.Color(Handles.color);
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GL.TexCoord(texOffset);
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GL.Vertex(Vector3.zero);
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GL.TexCoord(s_WireArcPoints[i - 1] * scale + texOffset);
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GL.Vertex(s_WireArcPoints[i - 1]);
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GL.TexCoord(s_WireArcPoints[i] * scale + texOffset);
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GL.Vertex(s_WireArcPoints[i]);
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GL.TexCoord(texOffset);
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GL.Vertex(Vector3.zero);
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GL.TexCoord(s_WireArcPoints[i] * scale + texOffset);
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GL.Vertex(s_WireArcPoints[i]);
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GL.TexCoord(s_WireArcPoints[i - 1] * scale + texOffset);
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GL.Vertex(s_WireArcPoints[i - 1]);
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}
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GL.End();
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GL.PopMatrix();
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}
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public static void PlayHeadCap(int controlID, Vector3 position, Quaternion rotation, float size, EventType eventType)
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{
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if (styles.playheadTex == null)
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styles.playheadTex = AssetDatabase.LoadAssetAtPath<Texture2D>("Packages/com.unity.2d.spriteshape/Editor/Handles/ss_playhead.png");
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GUITextureCap(controlID, styles.playheadTex, position, rotation, size, eventType);
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}
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public static void RangeLeftCap(int controlID, Vector3 position, Quaternion rotation, float size, EventType eventType)
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{
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if (styles.handLeftTex == null)
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styles.handLeftTex = AssetDatabase.LoadAssetAtPath<Texture2D>("Packages/com.unity.2d.spriteshape/Editor/Handles/ss_leftrange.png");
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GUITextureCap(controlID, styles.handLeftTex, position, rotation, size, eventType);
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}
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public static void RangeRightCap(int controlID, Vector3 position, Quaternion rotation, float size, EventType eventType)
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{
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if (styles.handRightTex == null)
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styles.handRightTex = AssetDatabase.LoadAssetAtPath<Texture2D>("Packages/com.unity.2d.spriteshape/Editor/Handles/ss_rightrange.png");
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GUITextureCap(controlID, styles.handRightTex, position, rotation, size, eventType);
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}
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public static void GUITextureCap(int controlID, Texture texture, Vector3 position, Quaternion rotation, float size, EventType eventType)
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{
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switch (eventType)
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{
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case (EventType.Layout):
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HandleUtility.AddControl(controlID, DistanceToRectangle(position, rotation, Vector2.one * size * 0.5f));
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break;
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case (EventType.Repaint):
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FilterMode filterMode = texture.filterMode;
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texture.filterMode = FilterMode.Bilinear;
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EditorSpriteGUIUtility.spriteMaterial.mainTexture = texture;
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float w = (float)texture.width;
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float h = (float)texture.height;
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float max = Mathf.Max(w, h);
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Vector3 scale = new Vector2(w / max, h / max) * size;
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if (Camera.current == null)
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scale.y *= -1f;
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EditorSpriteGUIUtility.DrawMesh(textureCapMesh, EditorSpriteGUIUtility.spriteMaterial, position, rotation, scale);
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texture.filterMode = filterMode;
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break;
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}
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}
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public static float DistanceToArcWidth(Vector2 position, Vector2 center, float start, float end, float radius, float width, float angleOffet)
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{
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float innerRadius = radius - width;
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float angle = PosToAngle(position, center, -angleOffet);
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angle = Mathf.Repeat(angle - start, 360f);
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float range = end - start;
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if (angle >= 0f && angle <= range)
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{
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float distanceToCenter = (position - center).magnitude;
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if (distanceToCenter <= radius && distanceToCenter >= innerRadius)
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return 0f;
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else if (distanceToCenter > radius)
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return distanceToCenter - radius;
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else if (distanceToCenter < innerRadius)
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return innerRadius - distanceToCenter;
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}
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else if (angle < 0f)
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{
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Vector2 pos1 = (Vector2)(Quaternion.AngleAxis(start + angleOffet, Vector3.forward) * Vector3.right * radius) + center;
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Vector2 pos2 = (Vector2)(Quaternion.AngleAxis(start + angleOffet, Vector3.forward) * Vector3.right * innerRadius) + center;
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return Mathf.Min((position - pos1).magnitude, (position - pos2).magnitude);
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}
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else if (angle > range)
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{
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Vector2 pos1 = (Vector2)(Quaternion.AngleAxis(end + angleOffet, Vector3.forward) * Vector3.right * radius) + center;
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Vector2 pos2 = (Vector2)(Quaternion.AngleAxis(end + angleOffet, Vector3.forward) * Vector3.right * innerRadius) + center;
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return Mathf.Min((position - pos1).magnitude, (position - pos2).magnitude);
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}
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return float.MaxValue;
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}
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public static float DistanceToRectangle(Vector3 position, Quaternion rotation, Vector2 size)
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{
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Vector3[] points = { Vector3.zero, Vector3.zero, Vector3.zero, Vector3.zero, Vector3.zero };
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Vector3 sideways = rotation * new Vector3(size.x, 0, 0);
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Vector3 up = rotation * new Vector3(0, size.y, 0);
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points[0] = HandleUtility.WorldToGUIPoint(position + sideways + up);
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points[1] = HandleUtility.WorldToGUIPoint(position + sideways - up);
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points[2] = HandleUtility.WorldToGUIPoint(position - sideways - up);
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points[3] = HandleUtility.WorldToGUIPoint(position - sideways + up);
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points[4] = points[0];
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Vector2 pos = Event.current.mousePosition;
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bool oddNodes = false;
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int j = 4;
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for (int i = 0; i < 5; i++)
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{
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if ((points[i].y > pos.y) != (points[j].y > pos.y))
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{
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if (pos.x < (points[j].x - points[i].x) * (pos.y - points[i].y) / (points[j].y - points[i].y) + points[i].x)
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{
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oddNodes = !oddNodes;
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}
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}
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j = i;
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}
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if (!oddNodes)
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{
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// Distance to closest edge (not so fast)
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float dist, closestDist = -1f;
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j = 1;
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for (int i = 0; i < 4; i++)
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{
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dist = HandleUtility.DistancePointToLineSegment(pos, points[i], points[j++]);
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if (dist < closestDist || closestDist < 0)
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closestDist = dist;
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}
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return closestDist;
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}
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else
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return 0;
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}
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}
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}
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