/
SpriteAttacher.cs
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/
SpriteAttacher.cs
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/******************************************************************************
* Spine Runtimes License Agreement
* Last updated January 1, 2020. Replaces all prior versions.
*
* Copyright (c) 2013-2020, Esoteric Software LLC
*
* Integration of the Spine Runtimes into software or otherwise creating
* derivative works of the Spine Runtimes is permitted under the terms and
* conditions of Section 2 of the Spine Editor License Agreement:
* http://esotericsoftware.com/spine-editor-license
*
* Otherwise, it is permitted to integrate the Spine Runtimes into software
* or otherwise create derivative works of the Spine Runtimes (collectively,
* "Products"), provided that each user of the Products must obtain their own
* Spine Editor license and redistribution of the Products in any form must
* include this license and copyright notice.
*
* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
// Original Contribution by: Mitch Thompson
using Spine.Unity.AttachmentTools;
using System.Collections.Generic;
using UnityEngine;
namespace Spine.Unity.Examples {
public class SpriteAttacher : MonoBehaviour {
public const string DefaultPMAShader = "Spine/Skeleton";
public const string DefaultStraightAlphaShader = "Sprites/Default";
#region Inspector
public bool attachOnStart = true;
public bool overrideAnimation = true;
public Sprite sprite;
[SpineSlot] public string slot;
#endregion
#if UNITY_EDITOR
void OnValidate () {
var skeletonComponent = GetComponent<ISkeletonComponent>();
var skeletonRenderer = skeletonComponent as SkeletonRenderer;
bool applyPMA;
if (skeletonRenderer != null) {
applyPMA = skeletonRenderer.pmaVertexColors;
} else {
var skeletonGraphic = skeletonComponent as SkeletonGraphic;
applyPMA = skeletonGraphic != null && skeletonGraphic.MeshGenerator.settings.pmaVertexColors;
}
if (applyPMA) {
try {
if (sprite == null)
return;
sprite.texture.GetPixel(0, 0);
} catch (UnityException e) {
Debug.LogFormat("Texture of {0} ({1}) is not read/write enabled. SpriteAttacher requires this in order to work with a SkeletonRenderer that renders premultiplied alpha. Please check the texture settings.", sprite.name, sprite.texture.name);
UnityEditor.EditorGUIUtility.PingObject(sprite.texture);
throw e;
}
}
}
#endif
RegionAttachment attachment;
Slot spineSlot;
bool applyPMA;
static Dictionary<Texture, AtlasPage> atlasPageCache;
static AtlasPage GetPageFor (Texture texture, Shader shader) {
if (atlasPageCache == null) atlasPageCache = new Dictionary<Texture, AtlasPage>();
AtlasPage atlasPage;
atlasPageCache.TryGetValue(texture, out atlasPage);
if (atlasPage == null) {
var newMaterial = new Material(shader);
atlasPage = newMaterial.ToSpineAtlasPage();
atlasPageCache[texture] = atlasPage;
}
return atlasPage;
}
void Start () {
// Initialize slot and attachment references.
Initialize(false);
if (attachOnStart)
Attach();
}
void AnimationOverrideSpriteAttach (ISkeletonAnimation animated) {
if (overrideAnimation && isActiveAndEnabled)
Attach();
}
public void Initialize (bool overwrite = true) {
if (overwrite || attachment == null) {
// Get the applyPMA value.
var skeletonComponent = GetComponent<ISkeletonComponent>();
var skeletonRenderer = skeletonComponent as SkeletonRenderer;
if (skeletonRenderer != null)
this.applyPMA = skeletonRenderer.pmaVertexColors;
else {
var skeletonGraphic = skeletonComponent as SkeletonGraphic;
if (skeletonGraphic != null)
this.applyPMA = skeletonGraphic.MeshGenerator.settings.pmaVertexColors;
}
// Subscribe to UpdateComplete to override animation keys.
if (overrideAnimation) {
var animatedSkeleton = skeletonComponent as ISkeletonAnimation;
if (animatedSkeleton != null) {
animatedSkeleton.UpdateComplete -= AnimationOverrideSpriteAttach;
animatedSkeleton.UpdateComplete += AnimationOverrideSpriteAttach;
}
}
spineSlot = spineSlot ?? skeletonComponent.Skeleton.FindSlot(slot);
Shader attachmentShader = applyPMA ? Shader.Find(DefaultPMAShader) : Shader.Find(DefaultStraightAlphaShader);
if (sprite == null)
attachment = null;
else
attachment = applyPMA ? sprite.ToRegionAttachmentPMAClone(attachmentShader) : sprite.ToRegionAttachment(SpriteAttacher.GetPageFor(sprite.texture, attachmentShader));
}
}
void OnDestroy () {
var animatedSkeleton = GetComponent<ISkeletonAnimation>();
if (animatedSkeleton != null)
animatedSkeleton.UpdateComplete -= AnimationOverrideSpriteAttach;
}
/// <summary>Update the slot's attachment to the Attachment generated from the sprite.</summary>
public void Attach () {
if (spineSlot != null)
spineSlot.Attachment = attachment;
}
}
public static class SpriteAttachmentExtensions {
[System.Obsolete]
public static RegionAttachment AttachUnitySprite (this Skeleton skeleton, string slotName, Sprite sprite, string shaderName = SpriteAttacher.DefaultPMAShader, bool applyPMA = true, float rotation = 0f) {
return skeleton.AttachUnitySprite(slotName, sprite, Shader.Find(shaderName), applyPMA, rotation: rotation);
}
[System.Obsolete]
public static RegionAttachment AddUnitySprite (this SkeletonData skeletonData, string slotName, Sprite sprite, string skinName = "", string shaderName = SpriteAttacher.DefaultPMAShader, bool applyPMA = true, float rotation = 0f) {
return skeletonData.AddUnitySprite(slotName, sprite, skinName, Shader.Find(shaderName), applyPMA, rotation: rotation);
}
[System.Obsolete]
public static RegionAttachment AttachUnitySprite (this Skeleton skeleton, string slotName, Sprite sprite, Shader shader, bool applyPMA, float rotation = 0f) {
RegionAttachment att = applyPMA ? sprite.ToRegionAttachmentPMAClone(shader, rotation: rotation) : sprite.ToRegionAttachment(new Material(shader), rotation: rotation);
skeleton.FindSlot(slotName).Attachment = att;
return att;
}
[System.Obsolete]
public static RegionAttachment AddUnitySprite (this SkeletonData skeletonData, string slotName, Sprite sprite, string skinName, Shader shader, bool applyPMA, float rotation = 0f) {
RegionAttachment att = applyPMA ? sprite.ToRegionAttachmentPMAClone(shader, rotation: rotation) : sprite.ToRegionAttachment(new Material(shader), rotation);
var slotIndex = skeletonData.FindSlot(slotName).Index;
Skin skin = skeletonData.DefaultSkin;
if (skinName != "")
skin = skeletonData.FindSkin(skinName);
if (skin != null)
skin.SetAttachment(slotIndex, att.Name, att);
return att;
}
}
}