mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-02-20 08:46:43 +08:00
532 lines
18 KiB
C#
532 lines
18 KiB
C#
/******************************************************************************
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* Spine Runtimes Software License
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* Version 2.1
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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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* You are granted a perpetual, non-exclusive, non-sublicensable and
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* non-transferable license to install, execute and perform the Spine Runtimes
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* Software (the "Software") solely for internal use. Without the written
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* permission of Esoteric Software (typically granted by licensing Spine), you
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* may not (a) modify, translate, adapt or otherwise create derivative works,
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* improvements of the Software or develop new applications using the Software
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* or (b) remove, delete, alter or obscure any trademarks or any copyright,
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* trademark, patent or other intellectual property or proprietary rights
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* notices on or in the Software, including any copy thereof. Redistributions
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* in binary or source form must include this license and terms.
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*
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* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ESOTERIC SOFTARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* 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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/// <summary>Renders a skeleton.</summary>
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[ExecuteInEditMode, RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))]
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public class SkeletonRenderer : MonoBehaviour {
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public delegate void SkeletonRendererDelegate (SkeletonRenderer skeletonRenderer);
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public SkeletonRendererDelegate OnReset;
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[System.NonSerialized]
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public bool valid;
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[System.NonSerialized]
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public Skeleton skeleton;
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public SkeletonDataAsset skeletonDataAsset;
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public String initialSkinName;
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public bool calculateNormals, calculateTangents;
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public float zSpacing;
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public bool renderMeshes = true, immutableTriangles;
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public bool frontFacing;
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public bool logErrors = false;
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[SpineSlot]
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public string[] submeshSeparators = new string[0];
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[HideInInspector]
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public List<Slot> submeshSeparatorSlots = new List<Slot>();
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private MeshFilter meshFilter;
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private Mesh mesh1, mesh2;
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private bool useMesh1;
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private float[] tempVertices = 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 readonly List<Material> submeshMaterials = new List<Material>();
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private readonly List<Submesh> submeshes = new List<Submesh>();
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public virtual void Reset () {
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if (meshFilter != null)
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meshFilter.sharedMesh = null;
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if (GetComponent<Renderer>() != null)
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GetComponent<Renderer>().sharedMaterial = null;
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if (mesh1 != null) {
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if (Application.isPlaying)
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Destroy(mesh1);
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else
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DestroyImmediate(mesh1);
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}
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if (mesh2 != null) {
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if (Application.isPlaying)
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Destroy(mesh2);
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else
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DestroyImmediate(mesh2);
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}
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mesh1 = null;
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mesh2 = null;
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lastVertexCount = 0;
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vertices = null;
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colors = null;
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uvs = null;
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sharedMaterials = new Material[0];
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submeshMaterials.Clear();
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submeshes.Clear();
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skeleton = null;
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valid = false;
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if (!skeletonDataAsset) {
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if (logErrors)
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Debug.LogError("Missing SkeletonData asset.", this);
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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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return;
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valid = true;
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meshFilter = GetComponent<MeshFilter>();
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mesh1 = newMesh();
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mesh2 = newMesh();
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vertices = new Vector3[0];
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skeleton = new Skeleton(skeletonData);
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if (initialSkinName != null && initialSkinName.Length > 0 && initialSkinName != "default")
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skeleton.SetSkin(initialSkinName);
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submeshSeparatorSlots.Clear();
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for (int i = 0; i < submeshSeparators.Length; i++) {
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submeshSeparatorSlots.Add(skeleton.FindSlot(submeshSeparators[i]));
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}
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if (OnReset != null)
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OnReset(this);
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}
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public virtual void Awake () {
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Reset();
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}
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public virtual void OnDestroy () {
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if (mesh1 != null) {
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if (Application.isPlaying)
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Destroy(mesh1);
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else
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DestroyImmediate(mesh1);
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}
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if (mesh2 != null) {
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if (Application.isPlaying)
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Destroy(mesh2);
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else
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DestroyImmediate(mesh2);
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}
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mesh1 = null;
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mesh2 = null;
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}
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private Mesh newMesh () {
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Mesh mesh = new 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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return mesh;
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}
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public virtual void LateUpdate () {
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if (!valid)
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return;
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// Count vertices and submesh triangles.
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int vertexCount = 0;
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int submeshTriangleCount = 0, submeshFirstVertex = 0, submeshStartSlotIndex = 0;
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Material lastMaterial = null;
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submeshMaterials.Clear();
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ExposedList<Slot> drawOrder = skeleton.drawOrder;
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int drawOrderCount = drawOrder.Count;
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int submeshSeparatorSlotsCount = submeshSeparatorSlots.Count;
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bool renderMeshes = this.renderMeshes;
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for (int i = 0; i < drawOrderCount; i++) {
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Slot slot = drawOrder.Items[i];
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Attachment attachment = slot.attachment;
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object rendererObject;
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int attachmentVertexCount, attachmentTriangleCount;
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RegionAttachment regionAttachment = attachment as RegionAttachment;
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if (regionAttachment != null) {
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rendererObject = regionAttachment.RendererObject;
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attachmentVertexCount = 4;
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attachmentTriangleCount = 6;
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} else {
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if (!renderMeshes)
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continue;
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MeshAttachment meshAttachment = attachment as MeshAttachment;
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if (meshAttachment != null) {
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rendererObject = meshAttachment.RendererObject;
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attachmentVertexCount = meshAttachment.vertices.Length >> 1;
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attachmentTriangleCount = meshAttachment.triangles.Length;
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} else {
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SkinnedMeshAttachment skinnedMeshAttachment = attachment as SkinnedMeshAttachment;
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if (skinnedMeshAttachment != null) {
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rendererObject = skinnedMeshAttachment.RendererObject;
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attachmentVertexCount = skinnedMeshAttachment.uvs.Length >> 1;
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attachmentTriangleCount = skinnedMeshAttachment.triangles.Length;
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} else
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continue;
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}
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}
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// Populate submesh when material changes.
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Material material = (Material)((AtlasRegion)rendererObject).page.rendererObject;
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if ((lastMaterial != null && lastMaterial.GetInstanceID() != material.GetInstanceID()) ||
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(submeshSeparatorSlotsCount > 0 && submeshSeparatorSlots.Contains(slot))) {
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AddSubmesh(lastMaterial, submeshStartSlotIndex, i, submeshTriangleCount, submeshFirstVertex, false);
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submeshTriangleCount = 0;
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submeshFirstVertex = vertexCount;
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submeshStartSlotIndex = i;
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}
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lastMaterial = material;
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submeshTriangleCount += attachmentTriangleCount;
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vertexCount += attachmentVertexCount;
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}
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AddSubmesh(lastMaterial, submeshStartSlotIndex, drawOrderCount, submeshTriangleCount, submeshFirstVertex, 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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GetComponent<Renderer>().sharedMaterials = sharedMaterials;
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// Ensure mesh data is the right size.
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Vector3[] vertices = this.vertices;
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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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mesh1.Clear();
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mesh2.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[] tempVertices = this.tempVertices;
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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 zSpacing = this.zSpacing;
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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; i < drawOrderCount; i++) {
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Slot slot = drawOrder.Items[i];
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Attachment attachment = slot.attachment;
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RegionAttachment regionAttachment = attachment as RegionAttachment;
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if (regionAttachment != null) {
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regionAttachment.ComputeWorldVertices(slot.bone, tempVertices);
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float z = i * zSpacing;
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vertices[vertexIndex].x = tempVertices[RegionAttachment.X1];
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vertices[vertexIndex].y = tempVertices[RegionAttachment.Y1];
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vertices[vertexIndex].z = z;
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vertices[vertexIndex + 1].x = tempVertices[RegionAttachment.X4];
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vertices[vertexIndex + 1].y = tempVertices[RegionAttachment.Y4];
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vertices[vertexIndex + 1].z = z;
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vertices[vertexIndex + 2].x = tempVertices[RegionAttachment.X2];
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vertices[vertexIndex + 2].y = tempVertices[RegionAttachment.Y2];
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vertices[vertexIndex + 2].z = z;
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vertices[vertexIndex + 3].x = tempVertices[RegionAttachment.X3];
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vertices[vertexIndex + 3].y = tempVertices[RegionAttachment.Y3];
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vertices[vertexIndex + 3].z = z;
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color.a = (byte)(a * slot.a * regionAttachment.a);
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color.r = (byte)(r * slot.r * regionAttachment.r * color.a);
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color.g = (byte)(g * slot.g * regionAttachment.g * color.a);
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color.b = (byte)(b * slot.b * regionAttachment.b * color.a);
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if (slot.data.additiveBlending)
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color.a = 0;
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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].x = regionUVs[RegionAttachment.X1];
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uvs[vertexIndex].y = regionUVs[RegionAttachment.Y1];
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uvs[vertexIndex + 1].x = regionUVs[RegionAttachment.X4];
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uvs[vertexIndex + 1].y = regionUVs[RegionAttachment.Y4];
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uvs[vertexIndex + 2].x = regionUVs[RegionAttachment.X2];
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uvs[vertexIndex + 2].y = regionUVs[RegionAttachment.Y2];
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uvs[vertexIndex + 3].x = regionUVs[RegionAttachment.X3];
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uvs[vertexIndex + 3].y = regionUVs[RegionAttachment.Y3];
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vertexIndex += 4;
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} else {
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if (!renderMeshes)
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continue;
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MeshAttachment meshAttachment = attachment as MeshAttachment;
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if (meshAttachment != null) {
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int meshVertexCount = meshAttachment.vertices.Length;
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if (tempVertices.Length < meshVertexCount)
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this.tempVertices = tempVertices = new float[meshVertexCount];
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meshAttachment.ComputeWorldVertices(slot, tempVertices);
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color.a = (byte)(a * slot.a * meshAttachment.a);
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color.r = (byte)(r * slot.r * meshAttachment.r * color.a);
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color.g = (byte)(g * slot.g * meshAttachment.g * color.a);
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color.b = (byte)(b * slot.b * meshAttachment.b * color.a);
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if (slot.data.additiveBlending)
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color.a = 0;
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float[] meshUVs = meshAttachment.uvs;
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float z = i * zSpacing;
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for (int ii = 0; ii < meshVertexCount; ii += 2, vertexIndex++) {
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vertices[vertexIndex].x = tempVertices[ii];
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vertices[vertexIndex].y = tempVertices[ii + 1];
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vertices[vertexIndex].z = z;
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colors[vertexIndex] = color;
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uvs[vertexIndex].x = meshUVs[ii];
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uvs[vertexIndex].y = meshUVs[ii + 1];
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}
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} else {
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SkinnedMeshAttachment skinnedMeshAttachment = attachment as SkinnedMeshAttachment;
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if (skinnedMeshAttachment != null) {
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int meshVertexCount = skinnedMeshAttachment.uvs.Length;
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if (tempVertices.Length < meshVertexCount)
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this.tempVertices = tempVertices = new float[meshVertexCount];
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skinnedMeshAttachment.ComputeWorldVertices(slot, tempVertices);
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color.a = (byte)(a * slot.a * skinnedMeshAttachment.a);
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color.r = (byte)(r * slot.r * skinnedMeshAttachment.r * color.a);
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color.g = (byte)(g * slot.g * skinnedMeshAttachment.g * color.a);
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color.b = (byte)(b * slot.b * skinnedMeshAttachment.b * color.a);
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if (slot.data.additiveBlending)
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color.a = 0;
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float[] meshUVs = skinnedMeshAttachment.uvs;
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float z = i * zSpacing;
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for (int ii = 0; ii < meshVertexCount; ii += 2, vertexIndex++) {
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vertices[vertexIndex].x = tempVertices[ii];
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vertices[vertexIndex].y = tempVertices[ii + 1];
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vertices[vertexIndex].z = z;
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colors[vertexIndex] = color;
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uvs[vertexIndex].x = meshUVs[ii];
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uvs[vertexIndex].y = meshUVs[ii + 1];
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}
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}
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}
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}
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}
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// Double buffer mesh.
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Mesh mesh = useMesh1 ? mesh1 : mesh2;
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meshFilter.sharedMesh = mesh;
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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 = submeshMaterials.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].triangles, i);
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mesh.RecalculateBounds();
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if (newTriangles && calculateNormals) {
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Vector3[] normals = new Vector3[vertexCount];
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Vector3 normal = new Vector3(0, 0, -1);
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for (int i = 0; i < vertexCount; i++)
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normals[i] = normal;
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(useMesh1 ? mesh2 : mesh1).vertices = vertices; // Set other mesh vertices.
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mesh1.normals = normals;
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mesh2.normals = normals;
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if (calculateTangents) {
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Vector4[] tangents = new Vector4[vertexCount];
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Vector3 tangent = new Vector3(0, 0, 1);
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for (int i = 0; i < vertexCount; i++)
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tangents[i] = tangent;
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mesh1.tangents = tangents;
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mesh2.tangents = tangents;
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}
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}
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useMesh1 = !useMesh1;
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}
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/** Stores vertices and triangles for a single material. */
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private void AddSubmesh (Material material, int startSlot, int endSlot, int triangleCount, int firstVertex, bool lastSubmesh) {
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int submeshIndex = submeshMaterials.Count;
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submeshMaterials.Add(material);
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if (submeshes.Count <= submeshIndex)
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submeshes.Add(new Submesh());
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else if (immutableTriangles)
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return;
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Submesh submesh = submeshes[submeshIndex];
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int[] triangles = submesh.triangles;
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int trianglesCapacity = triangles.Length;
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if (lastSubmesh && trianglesCapacity > triangleCount) {
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// Last submesh may have more triangles than required, so zero triangles to the end.
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for (int i = triangleCount; i < trianglesCapacity; i++)
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triangles[i] = 0;
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submesh.triangleCount = triangleCount;
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} else if (trianglesCapacity != triangleCount) {
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// Reallocate triangles when not the exact size needed.
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submesh.triangles = triangles = new int[triangleCount];
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submesh.triangleCount = 0;
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}
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if (!renderMeshes && !frontFacing) {
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// Use stored triangles if possible.
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if (submesh.firstVertex != firstVertex || submesh.triangleCount < triangleCount) {
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submesh.triangleCount = triangleCount;
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submesh.firstVertex = firstVertex;
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int drawOrderIndex = 0;
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for (int i = 0; i < triangleCount; i += 6, firstVertex += 4, drawOrderIndex++) {
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triangles[i] = firstVertex;
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triangles[i + 1] = firstVertex + 2;
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triangles[i + 2] = firstVertex + 1;
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triangles[i + 3] = firstVertex + 2;
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triangles[i + 4] = firstVertex + 3;
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triangles[i + 5] = firstVertex + 1;
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}
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}
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return;
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}
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// Store triangles.
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ExposedList<Slot> drawOrder = skeleton.DrawOrder;
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for (int i = startSlot, triangleIndex = 0; i < endSlot; i++) {
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Slot slot = drawOrder.Items[i];
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Attachment attachment = slot.attachment;
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Bone bone = slot.bone;
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bool worldScaleXIsPositive = bone.worldScaleX >= 0f;
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bool worldScaleYIsPositive = bone.worldScaleY >= 0f;
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bool worldScaleIsSameSigns = (worldScaleXIsPositive && worldScaleYIsPositive) ||
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(!worldScaleXIsPositive && !worldScaleYIsPositive);
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bool flip = frontFacing && ((bone.worldFlipX != bone.worldFlipY) != worldScaleIsSameSigns);
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if (attachment is RegionAttachment) {
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if (!flip) {
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triangles[triangleIndex] = firstVertex;
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triangles[triangleIndex + 1] = firstVertex + 2;
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triangles[triangleIndex + 2] = firstVertex + 1;
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triangles[triangleIndex + 3] = firstVertex + 2;
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triangles[triangleIndex + 4] = firstVertex + 3;
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triangles[triangleIndex + 5] = firstVertex + 1;
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} else {
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triangles[triangleIndex] = firstVertex + 1;
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triangles[triangleIndex + 1] = firstVertex + 2;
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triangles[triangleIndex + 2] = firstVertex;
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triangles[triangleIndex + 3] = firstVertex + 1;
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triangles[triangleIndex + 4] = firstVertex + 3;
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triangles[triangleIndex + 5] = firstVertex + 2;
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}
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triangleIndex += 6;
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firstVertex += 4;
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continue;
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}
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int[] attachmentTriangles;
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int attachmentVertexCount;
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MeshAttachment meshAttachment = attachment as MeshAttachment;
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if (meshAttachment != null) {
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attachmentVertexCount = meshAttachment.vertices.Length >> 1;
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attachmentTriangles = meshAttachment.triangles;
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} else {
|
|
SkinnedMeshAttachment skinnedMeshAttachment = attachment as SkinnedMeshAttachment;
|
|
if (skinnedMeshAttachment != null) {
|
|
attachmentVertexCount = skinnedMeshAttachment.uvs.Length >> 1;
|
|
attachmentTriangles = skinnedMeshAttachment.triangles;
|
|
} else
|
|
continue;
|
|
}
|
|
|
|
if (flip) {
|
|
for (int ii = 0, nn = attachmentTriangles.Length; ii < nn; ii += 3, triangleIndex += 3) {
|
|
triangles[triangleIndex + 2] = firstVertex + attachmentTriangles[ii];
|
|
triangles[triangleIndex + 1] = firstVertex + attachmentTriangles[ii + 1];
|
|
triangles[triangleIndex] = firstVertex + attachmentTriangles[ii + 2];
|
|
}
|
|
} else {
|
|
for (int ii = 0, nn = attachmentTriangles.Length; ii < nn; ii++, triangleIndex++) {
|
|
triangles[triangleIndex] = firstVertex + attachmentTriangles[ii];
|
|
}
|
|
}
|
|
|
|
firstVertex += attachmentVertexCount;
|
|
}
|
|
}
|
|
|
|
#if UNITY_EDITOR
|
|
void OnDrawGizmos () {
|
|
// Make selection easier by drawing a clear gizmo over the skeleton.
|
|
if (vertices == null) return;
|
|
Vector3 gizmosCenter = new Vector3();
|
|
Vector3 gizmosSize = new Vector3();
|
|
Vector3 min = new Vector3(float.MaxValue, float.MaxValue, 0f);
|
|
Vector3 max = new Vector3(float.MinValue, float.MinValue, 0f);
|
|
foreach (Vector3 vert in vertices) {
|
|
min = Vector3.Min(min, vert);
|
|
max = Vector3.Max(max, vert);
|
|
}
|
|
float width = max.x - min.x;
|
|
float height = max.y - min.y;
|
|
gizmosCenter = new Vector3(min.x + (width / 2f), min.y + (height / 2f), 0f);
|
|
gizmosSize = new Vector3(width, height, 1f);
|
|
Gizmos.color = Color.clear;
|
|
Gizmos.matrix = transform.localToWorldMatrix;
|
|
Gizmos.DrawCube(gizmosCenter, gizmosSize);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
class Submesh {
|
|
public int[] triangles = new int[0];
|
|
public int triangleCount;
|
|
public int firstVertex = -1;
|
|
}
|