cocos2d-x 动画详解之三CCSpriteFrame

CCSpriteFrame

精灵帧

CCTexture2D 将被用于CCSprite

默认的构造方法

通过 图片纹理+纹理上的矩形来创建

或通过 图片纹理+纹理上的矩形+是否旋转+偏移坐标+真实size

这里简单讲下

是否旋转

为了节省图片空间 图片将会被旋转90度

偏移坐标+真实size

为了节省图片空间 原始图片周围透明区域将被trim

Public Member Functions
const CCRect &	getRectInPixels (void)
void	setRectInPixels (const CCRect &rectInPixels)
bool	isRotated (void)
void	setRotated (bool bRotated)
const CCRect &	getRect (void)
	get rect of the frame
void	setRect (const CCRect &rect)
	set rect of the frame
const CCPoint &	getOffsetInPixels (void)
	get offset of the frame
void	setOffsetInPixels (const CCPoint &offsetInPixels)
	set offset of the frame
const CCSize &	getOriginalSizeInPixels (void)
	get original size of the trimmed image
void	setOriginalSizeInPixels (const CCSize &sizeInPixels)
	set original size of the trimmed image
CCTexture2D *	getTexture (void)
	get texture of the frame
void	setTexture (CCTexture2D *pobTexture) 设置图片纹理
	set texture of the frame, the texture is retained
	~CCSpriteFrame (void)
virtual CCObject *	copyWithZone (CCZone *pZone)
bool	initWithTexture (CCTexture2D *pobTexture, const CCRect &rect)
	Initializes a CCSpriteFrame with a texture, rect in points.
bool	initWithTexture (CCTexture2D *pobTexture, const CCRect &rect, bool rotated, const CCPoint &offset, const CCSize &originalSize)
	Initializes a CCSpriteFrame with a texture, rect, rotated, offset and originalSize in pixels.
Static Public Member Functions
static CCSpriteFrame *	frameWithTexture (CCTexture2D *pobTexture, const CCRect &rect)
	Create a CCSpriteFrame with a texture, rect in points.
static CCSpriteFrame *	frameWithTexture (CCTexture2D *pobTexture, const CCRect &rect, bool rotated, const CCPoint &offset, const CCSize &originalSize)
	Create a CCSpriteFrame with a texture, rect, rotated, offset and originalSize in pixels.
Protected Attributes
CCRect	m_obRectInPixels
bool	m_bRotated
CCRect	m_obRect
CCPoint	m_obOffsetInPixels
CCSize	m_obOriginalSizeInPixels
CCTexture2D *	m_pobTexture

Detailed Description

A CCSpriteFrame has:

texture: A CCTexture2D that will be used by the CCSprite

rectangle: A rectangle of the texture

You can modify the frame of a CCSprite by doing:

CCSpriteFrame *frame = CCSpriteFrame::frameWithTexture(texture, rect, offset); sprite->setDisplayFrame(frame);