cocoscreator实现spine用外部图片进行换皮

我希望可以做到外部图片替换spine一个部位上面的图片
网上有看到2dx的做法是新建sp.spine.RegionAttachment，这个时候问题就来了:
如何通过我们的Texture2D来设置sp.spine.TextureAtlasRegion和sp.spine.TextureAtlasPage

笔者研究一个礼拜，自己写了个实现函数，大家可以参考下


void SkeletonRenderer::createRegion(const std::string& slotName,cocos2d::middleware::Texture2D * texture){Slot *slot = _skeleton->findSlot(slotName.c_str());Texture* texture2D  = texture->getNativeTexture();RegionAttachment* attachment = (RegionAttachment*)slot->getAttachment();float width = texture2D->getWidth();float height = texture2D->getHeight();float wide = texture->getPixelsWide();float high = texture->getPixelsHigh();attachment->setUVs(0, 0, 1,1, false);attachment->setWidth(wide);attachment->setHeight(high);attachment->setRegionWidth(wide);attachment->setRegionHeight(high);attachment->setRegionOriginalWidth(wide);attachment->setRegionOriginalHeight(high);attachment->setRegionOffsetX(0);attachment->setRegionOffsetY(15);texture->setPixelsWide(width);texture->setPixelsHigh(height);texture->setRealTextureIndex(1);AttachmentVertices * attachV = (AttachmentVertices *)attachment->getRendererObject();if (attachV->_texture == texture) return;CC_SAFE_RELEASE(attachV->_texture);attachV->_texture = texture;CC_SAFE_RETAIN(texture);V2F_T2F_C4B*  vertices = attachV->_triangles->verts;for (int i = 0, ii = 0; i < 4; ++i, ii += 2) {vertices[i].texCoord.u = attachment->getUVs()[ii];vertices[i].texCoord.v = attachment->getUVs()[ii+1];}attachment->updateOffset();}

public changeSpineTexture(slotname: string, texture2d: cc.Texture2D, size: cc.Size = null): void {if (this._spine == null || texture2d == null) {return;}let slot = this._spine.findSlot(slotname);if (slot) {let att = slot.getAttachment();if (cc.sys.isNative) {let jsbTexture = new middleware.Texture2D();let texture = texture2d.getImpl();if (size == null) {jsbTexture.setPixelsWide(texture2d.width);jsbTexture.setPixelsHigh(texture2d.height);} else {jsbTexture.setPixelsWide(size.width);jsbTexture.setPixelsHigh(size.height);}jsbTexture.setNativeTexture(texture);this._spine._nativeSkeleton.createRegion(slotname, jsbTexture);} else {texture2d.setPremultiplyAlpha(true);let skeletonTexture = new sp.SkeletonTexture();skeletonTexture.setRealTexture(texture2d);let page = new sp.spine.TextureAtlasPage();page.name = texture2d.namepage.uWrap = sp.spine.TextureWrap.ClampToEdge;page.vWrap = sp.spine.TextureWrap.ClampToEdge;page.texture = skeletonTexture;page.texture.setWraps(page.uWrap, page.vWrap);page.width = texture2d.width;page.height = texture2d.height;let region = new sp.spine.TextureAtlasRegion();region.page = page;region.width = texture2d.width;region.height = texture2d.height;region.originalWidth = texture2d.width;region.originalHeight = texture2d.height;region.rotate = false;region.u = 0;region.v = 0;region.u2 = 1;region.v2 = 1;region.texture = skeletonTexture;att.region = region;if (size != null) {att.width = size.width;att.height = size.height;}att.setRegion(region);att.updateOffset();}} else {cc.error('!!!no slot name!!=', slotname);}}

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