mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
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294 lines
10 KiB
C#
294 lines
10 KiB
C#
/******************************************************************************
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* Spine Runtime Software License - Version 1.1
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*
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* Copyright (c) 2013, Esoteric Software
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms in whole or in part, with
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* or without modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. A Spine Single User License, Professional License, or Education License must
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* be purchased from Esoteric Software and the license must remain valid:
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* http://esotericsoftware.com/
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* 2. Redistributions of source code must retain this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer.
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* 3. Redistributions in binary form must reproduce this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer, in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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using System;
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using System.IO;
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using System.Collections.Generic;
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using UnityEngine;
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using Spine;
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/** Renders a skeleton. Extend to apply animations, get bones and manipulate them, etc. */
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[ExecuteInEditMode, RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))]
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public class SkeletonComponent : MonoBehaviour {
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public SkeletonDataAsset skeletonDataAsset;
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public Skeleton skeleton;
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public String initialSkinName;
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public float timeScale = 1;
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public bool calculateNormals;
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public bool calculateTangents;
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private Mesh mesh;
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private float[] vertexPositions = new float[8];
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private int lastVertexCount;
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private Vector3[] vertices;
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private Color32[] colors;
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private Vector2[] uvs;
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private Material[] sharedMaterials = new Material[0];
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private List<Material> submeshMaterials = new List<Material>();
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private List<Submesh> submeshes = new List<Submesh>();
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private Vector4[] tangents = new Vector4[0];
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public virtual void Clear () {
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GetComponent<MeshFilter>().mesh = null;
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DestroyImmediate(mesh);
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mesh = null;
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renderer.sharedMaterial = null;
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skeleton = null;
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}
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public virtual void Initialize () {
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mesh = new Mesh();
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GetComponent<MeshFilter>().mesh = mesh;
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mesh.name = "Skeleton Mesh";
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mesh.hideFlags = HideFlags.HideAndDontSave;
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mesh.MarkDynamic();
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vertices = new Vector3[0];
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skeleton = new Skeleton(skeletonDataAsset.GetSkeletonData(false));
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if (initialSkinName != null && initialSkinName.Length > 0 && initialSkinName != "default") {
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skeleton.SetSkin(initialSkinName);
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skeleton.SetSlotsToSetupPose();
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}
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}
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public virtual void UpdateSkeleton () {
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skeleton.Update(Time.deltaTime * timeScale);
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skeleton.UpdateWorldTransform();
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}
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public virtual void Update () {
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if (skeletonDataAsset == null) {
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Clear();
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return;
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}
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SkeletonData skeletonData = skeletonDataAsset.GetSkeletonData(false);
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if (skeletonData == null) {
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Clear();
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return;
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}
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// Initialize fields.
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if (skeleton == null || skeleton.Data != skeletonData)
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Initialize();
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UpdateSkeleton();
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// Count quads and submeshes.
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int quadCount = 0, submeshQuadCount = 0;
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Material lastMaterial = null;
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submeshMaterials.Clear();
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List<Slot> drawOrder = skeleton.DrawOrder;
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for (int i = 0, n = drawOrder.Count; i < n; i++) {
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RegionAttachment regionAttachment = drawOrder[i].Attachment as RegionAttachment;
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if (regionAttachment == null)
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continue;
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// Add submesh when material changes.
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Material material = (Material)((AtlasRegion)regionAttachment.RendererObject).page.rendererObject;
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if (lastMaterial != material && lastMaterial != null) {
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addSubmesh(lastMaterial, quadCount, submeshQuadCount, false);
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submeshQuadCount = 0;
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}
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lastMaterial = material;
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quadCount++;
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submeshQuadCount++;
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}
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addSubmesh(lastMaterial, quadCount, submeshQuadCount, true);
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// Set materials.
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if (submeshMaterials.Count == sharedMaterials.Length)
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submeshMaterials.CopyTo(sharedMaterials);
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else
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sharedMaterials = submeshMaterials.ToArray();
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renderer.sharedMaterials = sharedMaterials;
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// Ensure mesh data is the right size.
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Mesh mesh = this.mesh;
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Vector3[] vertices = this.vertices;
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int vertexCount = quadCount * 4;
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bool newTriangles = vertexCount > vertices.Length;
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if (newTriangles) {
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// Not enough vertices, increase size.
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this.vertices = vertices = new Vector3[vertexCount];
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this.colors = new Color32[vertexCount];
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this.uvs = new Vector2[vertexCount];
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mesh.Clear();
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} else {
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// Too many vertices, zero the extra.
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Vector3 zero = Vector3.zero;
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for (int i = vertexCount, n = lastVertexCount; i < n; i++)
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vertices[i] = zero;
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}
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lastVertexCount = vertexCount;
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// Setup mesh.
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float[] vertexPositions = this.vertexPositions;
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Vector2[] uvs = this.uvs;
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Color32[] colors = this.colors;
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int vertexIndex = 0;
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Color32 color = new Color32();
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float a = skeleton.A * 255, r = skeleton.R, g = skeleton.G, b = skeleton.B;
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for (int i = 0, n = drawOrder.Count; i < n; i++) {
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Slot slot = drawOrder[i];
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RegionAttachment regionAttachment = slot.Attachment as RegionAttachment;
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if (regionAttachment == null)
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continue;
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regionAttachment.ComputeWorldVertices(skeleton.X, skeleton.Y, slot.Bone, vertexPositions);
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vertices[vertexIndex] = new Vector3(vertexPositions[RegionAttachment.X1], vertexPositions[RegionAttachment.Y1], 0);
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vertices[vertexIndex + 1] = new Vector3(vertexPositions[RegionAttachment.X4], vertexPositions[RegionAttachment.Y4], 0);
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vertices[vertexIndex + 2] = new Vector3(vertexPositions[RegionAttachment.X2], vertexPositions[RegionAttachment.Y2], 0);
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vertices[vertexIndex + 3] = new Vector3(vertexPositions[RegionAttachment.X3], vertexPositions[RegionAttachment.Y3], 0);
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color.a = (byte)(a * slot.A);
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color.r = (byte)(r * slot.R * color.a);
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color.g = (byte)(g * slot.G * color.a);
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color.b = (byte)(b * slot.B * color.a);
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colors[vertexIndex] = color;
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colors[vertexIndex + 1] = color;
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colors[vertexIndex + 2] = color;
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colors[vertexIndex + 3] = color;
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float[] regionUVs = regionAttachment.UVs;
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uvs[vertexIndex] = new Vector2(regionUVs[RegionAttachment.X1], 1 - regionUVs[RegionAttachment.Y1]);
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uvs[vertexIndex + 1] = new Vector2(regionUVs[RegionAttachment.X4], 1 - regionUVs[RegionAttachment.Y4]);
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uvs[vertexIndex + 2] = new Vector2(regionUVs[RegionAttachment.X2], 1 - regionUVs[RegionAttachment.Y2]);
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uvs[vertexIndex + 3] = new Vector2(regionUVs[RegionAttachment.X3], 1 - regionUVs[RegionAttachment.Y3]);
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vertexIndex += 4;
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}
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mesh.vertices = vertices;
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mesh.colors32 = colors;
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mesh.uv = uvs;
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int submeshCount = submeshes.Count;
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mesh.subMeshCount = submeshCount;
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for (int i = 0; i < submeshCount; ++i)
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mesh.SetTriangles(submeshes[i].indexes, i);
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if (calculateNormals) {
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mesh.RecalculateNormals();
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if (calculateTangents) {
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Vector4[] tangents = this.tangents;
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int count = mesh.normals.Length;
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if (tangents.Length != count) {
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this.tangents = tangents = new Vector4[count];
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for (int i = 0; i < count; i++)
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tangents[i] = new Vector4(1, 0, 0, 1);
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}
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mesh.tangents = tangents;
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}
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}
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}
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/** Adds a material. Adds submesh indexes if existing indexes aren't sufficient. */
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private void addSubmesh (Material material, int endQuadCount, int submeshQuadCount, bool lastSubmesh) {
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int submeshIndex = submeshMaterials.Count;
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submeshMaterials.Add(material);
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int indexCount = submeshQuadCount * 6;
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int vertexIndex = (endQuadCount - submeshQuadCount) * 4;
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if (submeshes.Count <= submeshIndex) submeshes.Add(new Submesh());
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Submesh submesh = submeshes[submeshIndex];
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// Allocate indexes if not the right size, allowing last submesh to have more than required.
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int[] indexes = submesh.indexes;
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if (lastSubmesh ? (indexes.Length < indexCount) : (indexes.Length != indexCount)) {
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submesh.indexes = indexes = new int[indexCount];
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submesh.indexCount = 0;
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}
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// Set indexes if not already set.
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if (submesh.firstVertex != vertexIndex || submesh.indexCount < indexCount) {
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submesh.indexCount = indexCount;
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submesh.firstVertex = vertexIndex;
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for (int i = 0; i < indexCount; i += 6, vertexIndex += 4) {
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indexes[i] = vertexIndex;
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indexes[i + 1] = vertexIndex + 2;
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indexes[i + 2] = vertexIndex + 1;
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indexes[i + 3] = vertexIndex + 2;
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indexes[i + 4] = vertexIndex + 3;
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indexes[i + 5] = vertexIndex + 1;
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}
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}
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// Last submesh may have more indices than required, so zero indexes to the end.
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if (lastSubmesh && submesh.indexCount != indexCount) {
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submesh.indexCount = indexCount;
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for (int i = indexCount, n = indexes.Length; i < n; i++)
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indexes[i] = 0;
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}
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}
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public virtual void OnEnable () {
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Update();
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}
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public virtual void Reset () {
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Update();
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}
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#if UNITY_EDITOR
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void OnDrawGizmos() {
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if (vertices == null) return;
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Vector3 gizmosCenter = new Vector3();
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Vector3 gizmosSize = new Vector3();
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Vector3 min = new Vector3(float.MaxValue, float.MaxValue, 0f);
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Vector3 max = new Vector3(float.MinValue, float.MinValue, 0f);
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foreach (Vector3 vert in vertices) {
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min = Vector3.Min (min, vert);
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max = Vector3.Max (max, vert);
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}
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float width = max.x - min.x;
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float height = max.y - min.y;
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gizmosCenter = new Vector3(min.x + (width / 2f), min.y + (height / 2f), 0f);
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gizmosSize = new Vector3(width, height, 1f);
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Gizmos.color = Color.clear;
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Gizmos.matrix = transform.localToWorldMatrix;
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Gizmos.DrawCube(gizmosCenter, gizmosSize);
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}
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#endif
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}
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class Submesh {
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public int[] indexes = new int[0];
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public int firstVertex = -1;
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public int indexCount;
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}
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