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/****************************************************************************
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2011 Zynga Inc.
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
Copyright (c) 2019-present Axmol Engine contributors (see AUTHORS.md).
https://axmol.dev/
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once
#include <string>
#include "2d/Node.h"
#include "2d/DrawNode.h"
#include "base/Protocols.h"
#include "renderer/TextureAtlas.h"
#include "renderer/TrianglesCommand.h"
#include "renderer/CustomCommand.h"
#include "2d/AutoPolygon.h"
namespace ax
{
class SpriteBatchNode;
class SpriteFrame;
class Animation;
class Rect;
class Vec2;
class Texture2D;
struct transformValues_;
#ifdef SPRITE_RENDER_IN_SUBPIXEL
# undef SPRITE_RENDER_IN_SUBPIXEL
#endif
#if AX_SPRITEBATCHNODE_RENDER_SUBPIXEL
# define SPRITE_RENDER_IN_SUBPIXEL
#else
# define SPRITE_RENDER_IN_SUBPIXEL(__ARGS__) (ceil(__ARGS__))
#endif
/**
* @addtogroup _2d
* @{
*/
/**
* Sprite is a 2d image ( http://en.wikipedia.org/wiki/Sprite_(computer_graphics) ).
*
* Sprite can be created with an image, or with a sub-rectangle of an image.
*
* To optimize the Sprite rendering, please follow the following best practices:
* - Put all your sprites in the same spritesheet (http://www.codeandweb.com/what-is-a-sprite-sheet).
* - Use the same blending function for all your sprites.
* - ...and the Renderer will automatically "batch" your sprites (will draw all of them in one OpenGL call).
*
* Sprite has 4 types or rendering modes:
*
* - `QUAD`: Renders the sprite using 2 triangles (1 rectangle): uses small memory, but renders empty pixels (slow)
* - `POLYGON`: Renders the sprite using many triangles (depending on the setting): Uses more memory, but doesn't
* render so much empty pixels (faster)
* - `SLICE9`: Renders the sprite using 18 triangles (9 rectangles). Useful to to scale buttons an other rectangular
* sprites
* - `QUAD_BATCHNODE`: Renders the sprite using 2 triangles (1 rectangle) with a static batch, which has some
* limitations (see below)
*
* By default, the sprite uses `QUAD` mode. But can be changed to `POLYGON` when calling `setPolygonInfo()`. To use
* `SLICE9` call `setCenterRect()` or `serCenterRectNormalized()`. To use `QUAD_BATCHNODE` parent the sprite to a
* `SpriteBatchNode` object.
*
*
* `QUAD_BATCHNODE` is deprecated and should be avoid. It has the following limitations:
*
* - The Alias/Antialias property belongs to `SpriteBatchNode`, so you can't individually set the aliased property.
* - The Blending function property belongs to `SpriteBatchNode`, so you can't individually set the blending function
* property.
* - `ParallaxNode` is not supported, but can be simulated with a "proxy" sprite.
* - Sprites can only have other Sprites (or subclasses of Sprite) as children.
*
* The default anchorPoint in Sprite is (0.5, 0.5).
*/
class AX_DLL Sprite : public Node, public TextureProtocol
{
public:
enum class RenderMode
{
QUAD,
POLYGON,
SLICE9,
QUAD_BATCHNODE
};
/** Sprite invalid index on the SpriteBatchNode. */
static const int INDEX_NOT_INITIALIZED = -1;
/// @name Creators
/// @{
/**
* Creates an empty sprite without texture. You can call setTexture method subsequently.
*
* @memberof Sprite
* @return An autoreleased sprite object.
*/
static Sprite* create();
/**
* Creates a sprite with an image filename.
*
* After creation, the rect of sprite will be the size of the image,
* and the offset will be (0,0).
*
* @param filename A path to image file, e.g., "scene1/monster.png".
* @return An autoreleased sprite object.
*/
static Sprite* create(std::string_view filename);
static Sprite* create(std::string_view filename, PixelFormat format);
/**
* Creates a polygon sprite with a polygon info.
*
* After creation, the rect of sprite will be the size of the image,
* and the offset will be (0,0).
*
* @param polygonInfo A path to image file, e.g., "scene1/monster.png".
* @return An autoreleased sprite object.
*/
static Sprite* create(const PolygonInfo& info);
/**
* Creates a sprite with an image filename and a rect.
*
* @param filename A path to image file, e.g., "scene1/monster.png".
* @param rect A subrect of the image file.
* @return An autoreleased sprite object.
*/
static Sprite* create(std::string_view filename, const Rect& rect);
/**
* Creates a sprite with an image data and an image key.
*
* @param imageData A Data of the image fil.
* @param key The unique key for the image in the cache.
* @return An autoreleased sprite object.
*/
static Sprite* create(const ax::Data& imageData, std::string_view key);
/**
* Creates a sprite with a Texture2D object.
*
* After creation, the rect will be the size of the texture, and the offset will be (0,0).
*
* @param texture A pointer to a Texture2D object.
* @return An autoreleased sprite object.
*/
static Sprite* createWithTexture(Texture2D* texture);
/**
* Creates a sprite with a texture and a rect.
*
* After creation, the offset will be (0,0).
*
* @param texture A pointer to an existing Texture2D object.
* You can use a Texture2D object for many sprites.
* @param rect Only the contents inside the rect of this texture will be applied for this sprite.
* @param rotated Whether or not the rect is rotated.
* @return An autoreleased sprite object.
*/
static Sprite* createWithTexture(Texture2D* texture, const Rect& rect, bool rotated = false);
/**
* Creates a sprite with an sprite frame.
*
* @param spriteFrame A sprite frame which involves a texture and a rect.
* @return An autoreleased sprite object.
*/
static Sprite* createWithSpriteFrame(SpriteFrame* spriteFrame);
/**
* Creates a sprite with an sprite frame name.
*
* A SpriteFrame will be fetched from the SpriteFrameCache by spriteFrameName param.
* If the SpriteFrame doesn't exist it will raise an exception.
*
* @param spriteFrameName The name of sprite frame.
* @return An autoreleased sprite object.
*/
static Sprite* createWithSpriteFrameName(std::string_view spriteFrameName);
// end of creators group
/// @}
/// @{
/// @name BatchNode methods
/**
* Updates the quad according the rotation, position, scale values.
*/
virtual void updateTransform() override;
/**
* Returns the batch node object if this sprite is rendered by SpriteBatchNode.
*
* @return The SpriteBatchNode object if this sprite is rendered by SpriteBatchNode,
* nullptr if the sprite isn't used batch node.
*/
virtual SpriteBatchNode* getBatchNode() const;
/**
* Sets the batch node to sprite.
* @warning This method is not recommended for game developers. Sample code for using batch node
* @code
* SpriteBatchNode *batch = SpriteBatchNode::create("Images/grossini_dance_atlas.png", 15);
* Sprite *sprite = Sprite::createWithTexture(batch->getTexture(), Rect(0, 0, 57, 57));
* batch->addChild(sprite);
* layer->addChild(batch);
* @endcode
*/
virtual void setBatchNode(SpriteBatchNode* spriteBatchNode);
/// @} end of BatchNode methods
/// @{
/// @name Texture / Frame methods
/** Sets a new texture (from a filename) to the sprite.
*
* @memberof Sprite
* It will call `setTextureRect()` with the texture's content size.
*/
virtual void setTexture(std::string_view filename);
/** @overload
*
* The Texture's rect is not changed.
*/
virtual void setTexture(Texture2D* texture) override;
/** Returns the Texture2D object used by the sprite. */
virtual Texture2D* getTexture() const override;
/**
* Updates the texture rect of the Sprite in points.
*
* It will call setTextureRect(const Rect& rect, bool rotated, const Vec2& untrimmedSize) with \p rotated = false,
* and \p utrimmedSize = rect.size.
*/
virtual void setTextureRect(const Rect& rect);
/** @overload
*
* It will update the texture coordinates and the vertex rectangle.
*/
virtual void setTextureRect(const Rect& rect, bool rotated, const Vec2& untrimmedSize);
/**
* Sets the vertex rect.
*
* It will be called internally by setTextureRect.
* Useful if you want to create 2x images from SD images in Retina Display.
* Do not call it manually. Use setTextureRect instead.
*/
virtual void setVertexRect(const Rect& rect);
/**
* setCenterRectNormalized
*
* Useful to implement "9 sliced" sprites.
* The default value is (0,0) - (1,1), which means that only one "slice" will be used: From top-left (0,0) to
* bottom-right (1,1). If the value is different than (0,0), (1,1), then the sprite will be sliced into a 3 x 3
* grid. The four corners of this grid are applied without performing any scaling. The upper- and lower-middle parts
* are scaled horizontally, and the left- and right-middle parts are scaled vertically. The center is scaled in both
* directions. Important: The scaling is based the Sprite's trimmed size.
*
* Limitations: Does not work when the sprite is part of `SpriteBatchNode`.
*/
virtual void setCenterRectNormalized(const Rect& rect);
/**
* getCenterRectNormalized
*
* Returns the CenterRect in normalized coordinates
*/
virtual Rect getCenterRectNormalized() const;
/* setCenterRect
*
* Like `setCenterRectNormalized`, but instead of being in normalized coordinates, it is in points coordinates
*/
virtual void setCenterRect(const Rect& rect);
/**
* @brief Returns the Cap Insets rect
*
* @return Scale9Sprite's cap inset.
*/
virtual Rect getCenterRect() const;
/** @{
* Sets a new SpriteFrame to the Sprite.
*/
virtual void setSpriteFrame(std::string_view spriteFrameName);
virtual void setSpriteFrame(SpriteFrame* newFrame);
/** @} */
/**
* Returns whether or not a SpriteFrame is being displayed.
*/
virtual bool isFrameDisplayed(SpriteFrame* frame) const;
/**
* Returns the current displayed frame.
*/
virtual SpriteFrame* getSpriteFrame() const;
/// @} End of frames methods
/// @{
/// @name Animation methods
/**
* Changes the display frame with animation name and index.
* The animation name will be get from the AnimationCache.
*/
virtual void setDisplayFrameWithAnimationName(std::string_view animationName, unsigned int frameIndex);
/// @}
/// @{
/// @name Sprite Properties' setter/getters.
/**
* Whether or not the Sprite needs to be updated in the Atlas.
*
* @return True if the sprite needs to be updated in the Atlas, false otherwise.
*/
virtual bool isDirty() const { return _dirty; }
/**
* Makes the Sprite to be updated in the Atlas.
*/
virtual void setDirty(bool dirty) { _dirty = dirty; }
/**
* @js NA
*/
virtual std::string getDescription() const override;
/// @{
/// @name Functions inherited from Node.
virtual void setScaleX(float scaleX) override;
virtual void setScaleY(float scaleY) override;
virtual void setScale(float scaleX, float scaleY) override;
/**
* @js NA
* @lua NA
*/
virtual void setPosition(const Vec2& pos) override;
virtual void setPosition(float x, float y) override;
virtual void setRotation(float rotation) override;
virtual void setRotationSkewX(float rotationX) override;
virtual void setRotationSkewY(float rotationY) override;
virtual void setSkewX(float sx) override;
virtual void setSkewY(float sy) override;
virtual void removeChild(Node* child, bool cleanup = true) override;
virtual void removeAllChildrenWithCleanup(bool cleanup) override;
virtual void reorderChild(Node* child, int zOrder) override;
using Node::addChild;
virtual void addChild(Node* child, int zOrder, int tag) override;
virtual void addChild(Node* child, int zOrder, std::string_view name) override;
virtual void sortAllChildren() override;
virtual void setScale(float scale) override;
virtual void setPositionZ(float positionZ) override;
virtual void setAnchorPoint(const Vec2& anchor) override;
virtual void setContentSize(const Vec2& size) override;
virtual void setIgnoreAnchorPointForPosition(bool value) override;
virtual void setVisible(bool bVisible) override;
virtual void draw(Renderer* renderer, const Mat4& transform, uint32_t flags) override;
virtual void setOpacityModifyRGB(bool modify) override;
virtual bool isOpacityModifyRGB() const override;
/// @}
/**
* Returns the quad (tex coords, vertex coords and color) information.
* @js NA
* @lua NA
*/
const V3F_C4B_T2F_Quad& getQuad() const { return _quad; }
/**
* Returns whether or not the texture rectangle is rotated.
*/
bool isTextureRectRotated() const { return _rectRotated; }
/**
* Returns the index used on the TextureAtlas.
*/
unsigned int getAtlasIndex() const { return _atlasIndex; }
/**
* Sets the index used on the TextureAtlas.
*
* @warning Don't modify this value unless you know what you are doing.
*/
void setAtlasIndex(unsigned int atlasIndex) { _atlasIndex = atlasIndex; }
/**
* Returns the rect of the Sprite in points.
*/
const Rect& getTextureRect() const { return _rect; }
/**
* Gets the weak reference of the TextureAtlas when the sprite is rendered using via SpriteBatchNode.
*/
TextureAtlas* getTextureAtlas() const { return _textureAtlas; }
/**
* Set or Attach new ProgramState
*/
bool setProgramState(backend::ProgramState* programState, bool ownPS = false) override;
/**
* Sets the weak reference of the TextureAtlas when the sprite is rendered using via SpriteBatchNode.
*/
void setTextureAtlas(TextureAtlas* textureAtlas) { _textureAtlas = textureAtlas; }
/**
* Gets the offset position of the sprite. Calculated automatically by editors like Zwoptex.
*/
const Vec2& getOffsetPosition() const { return _offsetPosition; }
/**
* Returns the flag which indicates whether the sprite is flipped horizontally or not.
*
* It only flips the texture of the sprite, and not the texture of the sprite's children.
* Also, flipping the texture doesn't alter the anchorPoint.
* If you want to flip the anchorPoint too, and/or to flip the children too use:
* sprite->setScaleX(sprite->getScaleX() * -1);
*
* @return true if the sprite is flipped horizontally, false otherwise.
*/
bool isFlippedX() const;
/**
* Sets whether the sprite should be flipped horizontally or not.
*
* @param flippedX true if the sprite should be flipped horizontally, false otherwise.
*/
void setFlippedX(bool flippedX);
/**
* Return the flag which indicates whether the sprite is flipped vertically or not.
*
* It only flips the texture of the sprite, and not the texture of the sprite's children.
* Also, flipping the texture doesn't alter the anchorPoint.
* If you want to flip the anchorPoint too, and/or to flip the children too use:
* sprite->setScaleY(sprite->getScaleY() * -1);
*
* @return true if the sprite is flipped vertically, false otherwise.
*/
bool isFlippedY() const;
/**
* Sets whether the sprite should be flipped vertically or not.
*
* @param flippedY true if the sprite should be flipped vertically, false otherwise.
*/
void setFlippedY(bool flippedY);
/// @} End of Sprite properties getter/setters
/**
* returns a reference of the polygon information associated with this sprite
*
* @return a reference of PolygonInfo
*/
const PolygonInfo& getPolygonInfo() const;
/**
* set the sprite to use this new PolygonInfo
*
* @param PolygonInfo the polygon information object
*/
void setPolygonInfo(const PolygonInfo& info);
/** whether or not contentSize stretches the sprite's texture */
void setStretchEnabled(bool enabled);
/** returns whether or not contentSize stretches the sprite's texture */
bool isStretchEnabled() const;
//
// Overrides
//
/// @{
/// @name Functions inherited from TextureProtocol.
/**
*@code
*When this function bound into js or lua,the parameter will be changed.
*In js: var setBlendFunc(var src, var dst).
*In lua: local setBlendFunc(local src, local dst).
*@endcode
*/
void setBlendFunc(const BlendFunc& blendFunc) override { _blendFunc = blendFunc; }
/**
* @js NA
* @lua NA
*/
const BlendFunc& getBlendFunc() const override { return _blendFunc; }
/// @}
int getResourceType() const { return _fileType; }
std::string_view getResourceName() const { return _fileName; }
/**
* @js ctor
*/
Sprite();
virtual ~Sprite();
/* Initializes an empty sprite with no parameters. */
virtual bool init() override;
/**
* Initializes a sprite with a texture.
*
* After initialization, the rect used will be the size of the texture, and the offset will be (0,0).
*
* @param texture A pointer to an existing Texture2D object.
* You can use a Texture2D object for many sprites.
* @return True if the sprite is initialized properly, false otherwise.
*/
virtual bool initWithTexture(Texture2D* texture);
/**
* Initializes a sprite with a PolygonInfo.
*
* After initialization, the rect used will be the size of the texture, and the offset will be (0,0).
*
* @param PolygonInfo a Polygon info contains the structure of the polygon.
* @return True if the sprite is initialized properly, false otherwise.
*/
virtual bool initWithPolygon(const PolygonInfo& info);
/**
* Initializes a sprite with a texture and a rect.
*
* After initialization, the offset will be (0,0).
*
* @param texture A pointer to an existing Texture2D object.
* You can use a Texture2D object for many sprites.
* @param rect Only the contents inside rect of this texture will be applied for this sprite.
* @return True if the sprite is initialized properly, false otherwise.
*/
virtual bool initWithTexture(Texture2D* texture, const Rect& rect);
/**
* Initializes a sprite with a texture and a rect in points, optionally rotated.
*
* After initialization, the offset will be (0,0).
* @note This is the designated initializer.
*
* @param texture A Texture2D object whose texture will be applied to this sprite.
* @param rect A rectangle assigned the contents of texture.
* @param rotated Whether or not the texture rectangle is rotated.
* @return True if the sprite is initialized properly, false otherwise.
*/
virtual bool initWithTexture(Texture2D* texture, const Rect& rect, bool rotated);
/**
* Initializes a sprite with an SpriteFrame. The texture and rect in SpriteFrame will be applied on this sprite.
*
* @param spriteFrame A SpriteFrame object. It should includes a valid texture and a rect.
* @return True if the sprite is initialized properly, false otherwise.
*/
virtual bool initWithSpriteFrame(SpriteFrame* spriteFrame);
/**
* Initializes a sprite with an sprite frame name.
*
* A SpriteFrame will be fetched from the SpriteFrameCache by name.
* If the SpriteFrame doesn't exist it will raise an exception.
*
* @param spriteFrameName A key string that can fetched a valid SpriteFrame from SpriteFrameCache.
* @return True if the sprite is initialized properly, false otherwise.
*/
virtual bool initWithSpriteFrameName(std::string_view spriteFrameName);
/**
* Initializes a sprite with an image filename.
*
* This method will find filename from local file system, load its content to Texture2D,
* then use Texture2D to create a sprite.
* After initialization, the rect used will be the size of the image. The offset will be (0,0).
*
* @param filename The path to an image file in local file system.
* @return True if the sprite is initialized properly, false otherwise.
* @lua init
*/
virtual bool initWithFile(std::string_view filename);
virtual bool initWithFile(std::string_view filename, PixelFormat format);
/**
* Initializes a sprite with an image filename, and a rect.
*
* This method will find filename from local file system, load its content to Texture2D,
* then use Texture2D to create a sprite.
* After initialization, the offset will be (0,0).
*
* @param filename The path to an image file in local file system.
* @param rect The rectangle assigned the content area from texture.
* @return True if the sprite is initialized properly, false otherwise.
* @lua init
*/
virtual bool initWithFile(std::string_view filename, const Rect& rect);
/**
* Initializes a sprite with an image data, and a key for the cache.
*
* This method will load the image data to Texture2D,
* then use Texture2D to create a sprite.
* After initialization, the offset will be (0,0).
*
* @param imageData The image data
* @param key The key for cache.
* @return True if the sprite is initialized properly, false otherwise.
* @lua init
*/
virtual bool initWithImageData(const ax::Data& imageData, std::string_view key);
virtual void setVertexLayout();
void setProgramState(uint32_t type) override;
void setAutoUpdatePS(bool bVal) { _autoUpdatePS = bVal; }
/**
* Indicate if the sprite content size can change if new textures are applied to
* the sprite.
*
* @param enabled True if the sprite can change size on new frames/textures
*/
void setAutoSize(bool enabled) { _autoSizeEnabled = enabled; }
protected:
virtual void updateColor() override;
virtual void setTextureCoords(const Rect& rect);
virtual void setTextureCoords(const Rect& rect, V3F_C4B_T2F_Quad* outQuad);
virtual void setVertexCoords(const Rect& rect, V3F_C4B_T2F_Quad* outQuad);
virtual void updateBlendFunc();
virtual void setReorderChildDirtyRecursively();
virtual void setDirtyRecursively(bool value);
virtual void flipX();
virtual void flipY();
void updatePoly();
void updateStretchFactor();
void populateTriangle(int quadIndex, const V3F_C4B_T2F_Quad& quad);
void setMVPMatrixUniform();
//
// Data used when the sprite is rendered using a SpriteSheet
//
TextureAtlas* _textureAtlas = nullptr; /// SpriteBatchNode texture atlas (weak reference)
unsigned int _atlasIndex = 0; /// Absolute (real) Index on the SpriteSheet
SpriteBatchNode* _batchNode = nullptr; /// Used batch node (weak reference)
bool _dirty = false; /// Whether the sprite needs to be updated
bool _recursiveDirty = false; /// Whether all of the sprite's children needs to be updated
bool _shouldBeHidden = false; /// should not be drawn because one of the ancestors is not visible
Mat4 _transformToBatch;
//
// Data used when the sprite is self-rendered
//
BlendFunc _blendFunc; /// It's required for TextureProtocol inheritance
Texture2D* _texture = nullptr; /// Texture2D object that is used to render the sprite
SpriteFrame* _spriteFrame = nullptr;
TrianglesCommand _trianglesCommand;
backend::UniformLocation _mvpMatrixLocation;
#if AX_SPRITE_DEBUG_DRAW
DrawNode* _debugDrawNode = nullptr;
#endif // AX_SPRITE_DEBUG_DRAW
//
// Shared data
//
// texture
Rect _rect; /// Rectangle of Texture2D
bool _rectRotated = false; /// Whether the texture is rotated
Rect _centerRectNormalized = {0, 0, 1, 1}; /// Rectangle to implement "slice 9"
RenderMode _renderMode =
Sprite::RenderMode::QUAD; /// render mode used by the Sprite: Quad, Slice9, Polygon or Quad_Batchnode
Vec2 _stretchFactor = Vec2::ONE; /// stretch factor to match the contentSize. for 1- and 9- slice sprites
Vec2 _originalContentSize = Vec2::ZERO; /// original content size
// Offset Position (used by Zwoptex)
Vec2 _offsetPosition;
Vec2 _unflippedOffsetPositionFromCenter;
// vertex coords, texture coords and color info
V3F_C4B_T2F_Quad _quad;
V3F_C4B_T2F* _trianglesVertex = nullptr;
unsigned short* _trianglesIndex = nullptr;
PolygonInfo _polyInfo;
// opacity and RGB protocol
bool _opacityModifyRGB = false;
// image is flipped
bool _flippedX = false; /// Whether the sprite is flipped horizontally or not
bool _flippedY = false; /// Whether the sprite is flipped vertically or not
bool _insideBounds = true; /// whether or not the sprite was inside bounds the previous frame
std::string _fileName;
int _fileType = 0;
bool _stretchEnabled = true;
bool _autoUpdatePS = true;
bool _autoSizeEnabled = true;
private:
AX_DISALLOW_COPY_AND_ASSIGN(Sprite);
};
// end of sprite_nodes group
/// @}
}
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