本文详细介绍了Cocos2d-x中的动作类，包括基本的时间间隔动作、复合动作如序列和并行动作，重复动作，以及各种移动、旋转、缩放等具体动作效果的实现方式。
#ifndef __ACTION_CCINTERVAL_ACTION_H__
#define __ACTION_CCINTERVAL_ACTION_H__
#include "base_nodes/CCNode.h"
#include "CCAction.h"
#include "CCProtocols.h"
#include "sprite_nodes/CCSpriteFrame.h"
#include "sprite_nodes/CCAnimation.h"
#include <vector>
NS_CC_BEGIN
/**
* @addtogroup actions
* @{
*/
/**
@brief An interval action is an action that takes place within a certain period of time.
It has an start time, and a finish time. The finish time is the parameter
duration plus the start time.
These CCActionInterval actions have some interesting properties, like:
- They can run normally (default)
- They can run reversed with the reverse method
- They can run with the time altered with the Accelerate, AccelDeccel and Speed actions.
For example, you can simulate a Ping Pong effect running the action normally and
then running it again in Reverse mode.
Example:
CCAction *pingPongAction = CCSequence::actions(action, action->reverse(), NULL);
*/
class CC_DLL CCActionInterval : public CCFiniteTimeAction
{
public:
/** how many seconds had elapsed since the actions started to run. */
inline float getElapsed(void) { return m_elapsed; }
/** initializes the action */
bool initWithDuration(float d);
/** returns true if the action has finished */
virtual bool isDone(void);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void step(float dt);
virtual void startWithTarget(CCNode *pTarget);
/** returns a reversed action */
virtual CCActionInterval* reverse(void);
public:
/** creates the action */
static CCActionInterval* create(float d);
public:
//extension in CCGridAction
void setAmplitudeRate(float amp);
float getAmplitudeRate(void);
protected:
float m_elapsed;
bool m_bFirstTick;
};
/** @brief Runs actions sequentially, one after another
*/
class CC_DLL CCSequence : public CCActionInterval
{
public:
~CCSequence(void);
/** initializes the action */
bool initWithTwoActions(CCFiniteTimeAction *pActionOne, CCFiniteTimeAction *pActionTwo);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void stop(void);
virtual void update(float t);
virtual CCActionInterval* reverse(void);
public:
/** helper constructor to create an array of sequenceable actions */
static CCSequence* create(CCFiniteTimeAction *pAction1, ...);
/** helper constructor to create an array of sequenceable actions given an array */
static CCSequence* create(CCArray *arrayOfActions);
/** helper constructor to create an array of sequence-able actions */
static CCSequence* createWithVariableList(CCFiniteTimeAction *pAction1, va_list args);
/** creates the action */
static CCSequence* createWithTwoActions(CCFiniteTimeAction *pActionOne, CCFiniteTimeAction *pActionTwo);
protected:
CCFiniteTimeAction *m_pActions[2];
float m_split;
int m_last;
};
/** @brief Repeats an action a number of times.
* To repeat an action forever use the CCRepeatForever action.
*/
class CC_DLL CCRepeat : public CCActionInterval
{
public:
~CCRepeat(void);
/** initializes a CCRepeat action. Times is an unsigned integer between 1 and pow(2,30) */
bool initWithAction(CCFiniteTimeAction *pAction, unsigned int times);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void stop(void);
virtual void update(float dt);
virtual bool isDone(void);
virtual CCActionInterval* reverse(void);
inline void setInnerAction(CCFiniteTimeAction *pAction)
{
if (m_pInnerAction != pAction)
{
CC_SAFE_RETAIN(pAction);
CC_SAFE_RELEASE(m_pInnerAction);
m_pInnerAction = pAction;
}
}
inline CCFiniteTimeAction* getInnerAction()
{
return m_pInnerAction;
}
public:
/** creates a CCRepeat action. Times is an unsigned integer between 1 and pow(2,30) */
static CCRepeat* create(CCFiniteTimeAction *pAction, unsigned int times);
protected:
unsigned int m_uTimes;
unsigned int m_uTotal;
float m_fNextDt;
bool m_bActionInstant;
/** Inner action */
CCFiniteTimeAction *m_pInnerAction;
};
/** @brief Repeats an action for ever.
To repeat the an action for a limited number of times use the Repeat action.
@warning This action can't be Sequenceable because it is not an IntervalAction
*/
class CC_DLL CCRepeatForever : public CCActionInterval
{
public:
CCRepeatForever()
: m_pInnerAction(NULL)
{}
virtual ~CCRepeatForever();
/** initializes the action */
bool initWithAction(CCActionInterval *pAction);
virtual CCObject* copyWithZone(CCZone *pZone);
virtual void startWithTarget(CCNode* pTarget);
virtual void step(float dt);
virtual bool isDone(void);
virtual CCActionInterval* reverse(void);
inline void setInnerAction(CCActionInterval *pAction)
{
if (m_pInnerAction != pAction)
{
CC_SAFE_RELEASE(m_pInnerAction);
m_pInnerAction = pAction;
CC_SAFE_RETAIN(m_pInnerAction);
}
}
inline CCActionInterval* getInnerAction()
{
return m_pInnerAction;
}
public:
/** creates the action */
static CCRepeatForever* create(CCActionInterval *pAction);
protected:
/** Inner action */
CCActionInterval *m_pInnerAction;
};
/** @brief Spawn a new action immediately
*/
class CC_DLL CCSpawn : public CCActionInterval
{
public:
~CCSpawn(void);
/** initializes the Spawn action with the 2 actions to spawn */
bool initWithTwoActions(CCFiniteTimeAction *pAction1, CCFiniteTimeAction *pAction2);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void stop(void);
virtual void update(float time);
virtual CCActionInterval* reverse(void);
public:
/** helper constructor to create an array of spawned actions */
static CCSpawn* create(CCFiniteTimeAction *pAction1, ...);
/** helper constructor to create an array of spawned actions */
static CCSpawn* createWithVariableList(CCFiniteTimeAction *pAction1, va_list args);
/** helper constructor to create an array of spawned actions given an array */
static CCSpawn* create(CCArray *arrayOfActions);
/** creates the Spawn action */
static CCSpawn* createWithTwoActions(CCFiniteTimeAction *pAction1, CCFiniteTimeAction *pAction2);
protected:
CCFiniteTimeAction *m_pOne;
CCFiniteTimeAction *m_pTwo;
};
/** @brief Rotates a CCNode object to a certain angle by modifying it's
rotation attribute.
The direction will be decided by the shortest angle.
*/
class CC_DLL CCRotateTo : public CCActionInterval
{
public:
/** creates the action */
static CCRotateTo* create(float fDuration, float fDeltaAngle);
/** initializes the action */
bool initWithDuration(float fDuration, float fDeltaAngle);
/** creates the action with separate rotation angles */
static CCRotateTo* create(float fDuration, float fDeltaAngleX, float fDeltaAngleY);
virtual bool initWithDuration(float fDuration, float fDeltaAngleX, float fDeltaAngleY);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
protected:
float m_fDstAngleX;
float m_fStartAngleX;
float m_fDiffAngleX;
float m_fDstAngleY;
float m_fStartAngleY;
float m_fDiffAngleY;
};
/** @brief Rotates a CCNode object clockwise a number of degrees by modifying it's rotation attribute.
*/
class CC_DLL CCRotateBy : public CCActionInterval
{
public:
/** creates the action */
static CCRotateBy* create(float fDuration, float fDeltaAngle);
/** initializes the action */
bool initWithDuration(float fDuration, float fDeltaAngle);
static CCRotateBy* create(float fDuration, float fDeltaAngleX, float fDeltaAngleY);
bool initWithDuration(float fDuration, float fDeltaAngleX, float fDeltaAngleY);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
virtual CCActionInterval* reverse(void);
protected:
float m_fAngleX;
float m_fStartAngleX;
float m_fAngleY;
float m_fStartAngleY;
};
/** Moves a CCNode object x,y pixels by modifying it's position attribute.
x and y are relative to the position of the object.
Several CCMoveBy actions can be concurrently called, and the resulting
movement will be the sum of individual movements.
@since v2.1beta2-custom
*/
class CC_DLL CCMoveBy : public CCActionInterval
{
public:
/** initializes the action */
bool initWithDuration(float duration, const CCPoint& deltaPosition);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual CCActionInterval* reverse(void);
virtual void update(float time);
public:
/** creates the action */
static CCMoveBy* create(float duration, const CCPoint& deltaPosition);
protected:
CCPoint m_positionDelta;
CCPoint m_startPosition;
CCPoint m_previousPosition;
};
/** Moves a CCNode object to the position x,y. x and y are absolute coordinates by modifying it's position attribute.
Several CCMoveTo actions can be concurrently called, and the resulting
movement will be the sum of individual movements.
@since v2.1beta2-custom
*/
class CC_DLL CCMoveTo : public CCMoveBy
{
public:
/** initializes the action */
bool initWithDuration(float duration, const CCPoint& position);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
public:
/** creates the action */
static CCMoveTo* create(float duration, const CCPoint& position);
protected:
CCPoint m_endPosition;
};
/** Skews a CCNode object to given angles by modifying it's skewX and skewY attributes
@since v1.0
*/
class CC_DLL CCSkewTo : public CCActionInterval
{
public:
CCSkewTo();
virtual bool initWithDuration(float t, float sx, float sy);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
public:
/** creates the action */
static CCSkewTo* create(float t, float sx, float sy);
protected:
float m_fSkewX;
float m_fSkewY;
float m_fStartSkewX;
float m_fStartSkewY;
float m_fEndSkewX;
float m_fEndSkewY;
float m_fDeltaX;
float m_fDeltaY;
};
/** Skews a CCNode object by skewX and skewY degrees
@since v1.0
*/
class CC_DLL CCSkewBy : public CCSkewTo
{
public:
virtual bool initWithDuration(float t, float sx, float sy);
virtual void startWithTarget(CCNode *pTarget);
virtual CCActionInterval* reverse(void);
public:
/** creates the action */
static CCSkewBy* create(float t, float deltaSkewX, float deltaSkewY);
};
/** @brief Moves a CCNode object simulating a parabolic jump movement by modifying it's position attribute.
*/
class CC_DLL CCJumpBy : public CCActionInterval
{
public:
/** initializes the action */
bool initWithDuration(float duration, const CCPoint& position, float height, unsigned int jumps);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
virtual CCActionInterval* reverse(void);
public:
/** creates the action */
static CCJumpBy* create(float duration, const CCPoint& position, float height, unsigned int jumps);
protected:
CCPoint m_startPosition;
CCPoint m_delta;
float m_height;
unsigned int m_nJumps;
CCPoint m_previousPos;
};
/** @brief Moves a CCNode object to a parabolic position simulating a jump movement by modifying it's position attribute.
*/
class CC_DLL CCJumpTo : public CCJumpBy
{
public:
virtual void startWithTarget(CCNode *pTarget);
virtual CCObject* copyWithZone(CCZone* pZone);
public:
/** creates the action */
static CCJumpTo* create(float duration, const CCPoint& position, float height, int jumps);
};
/** @typedef bezier configuration structure
*/
typedef struct _ccBezierConfig {
//! end position of the bezier
CCPoint endPosition;
//! Bezier control point 1
CCPoint controlPoint_1;
//! Bezier control point 2
CCPoint controlPoint_2;
} ccBezierConfig;
/** @brief An action that moves the target with a cubic Bezier curve by a certain distance.
*/
class CC_DLL CCBezierBy : public CCActionInterval
{
public:
/** initializes the action with a duration and a bezier configuration */
bool initWithDuration(float t, const ccBezierConfig& c);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
virtual CCActionInterval* reverse(void);
public:
/** creates the action with a duration and a bezier configuration */
static CCBezierBy* create(float t, const ccBezierConfig& c);
protected:
ccBezierConfig m_sConfig;
CCPoint m_startPosition;
CCPoint m_previousPosition;
};
/** @brief An action that moves the target with a cubic Bezier curve to a destination point.
@since v0.8.2
*/
class CC_DLL CCBezierTo : public CCBezierBy
{
public:
virtual void startWithTarget(CCNode *pTarget);
virtual CCObject* copyWithZone(CCZone* pZone);
public:
/** creates the action with a duration and a bezier configuration */
static CCBezierTo* create(float t, const ccBezierConfig& c);
bool initWithDuration(float t, const ccBezierConfig &c);
protected:
ccBezierConfig m_sToConfig;
};
/** @brief Scales a CCNode object to a zoom factor by modifying it's scale attribute.
@warning This action doesn't support "reverse"
*/
class CC_DLL CCScaleTo : public CCActionInterval
{
public:
/** initializes the action with the same scale factor for X and Y */
bool initWithDuration(float duration, float s);
/** initializes the action with and X factor and a Y factor */
bool initWithDuration(float duration, float sx, float sy);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
public:
/** creates the action with the same scale factor for X and Y */
static CCScaleTo* create(float duration, float s);
/** creates the action with and X factor and a Y factor */
static CCScaleTo* create(float duration, float sx, float sy);
protected:
float m_fScaleX;
float m_fScaleY;
float m_fStartScaleX;
float m_fStartScaleY;
float m_fEndScaleX;
float m_fEndScaleY;
float m_fDeltaX;
float m_fDeltaY;
};
/** @brief Scales a CCNode object a zoom factor by modifying it's scale attribute.
*/
class CC_DLL CCScaleBy : public CCScaleTo
{
public:
virtual void startWithTarget(CCNode *pTarget);
virtual CCActionInterval* reverse(void);
virtual CCObject* copyWithZone(CCZone* pZone);
public:
/** creates the action with the same scale factor for X and Y */
static CCScaleBy* create(float duration, float s);
/** creates the action with and X factor and a Y factor */
static CCScaleBy* create(float duration, float sx, float sy);
};
/** @brief Blinks a CCNode object by modifying it's visible attribute
*/
class CC_DLL CCBlink : public CCActionInterval
{
public:
/** initializes the action */
bool initWithDuration(float duration, unsigned int uBlinks);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void update(float time);
virtual CCActionInterval* reverse(void);
public:
/** creates the action */
static CCBlink* create(float duration, unsigned int uBlinks);
virtual void startWithTarget(CCNode *pTarget);
virtual void stop();
protected:
unsigned int m_nTimes;
bool m_bOriginalState;
};
/** @brief Fades In an object that implements the CCRGBAProtocol protocol. It modifies the opacity from 0 to 255.
The "reverse" of this action is FadeOut
*/
class CC_DLL CCFadeIn : public CCActionInterval
{
public:
virtual void update(float time);
virtual CCActionInterval* reverse(void);
virtual CCObject* copyWithZone(CCZone* pZone);
public:
/** creates the action */
static CCFadeIn* create(float d);
};
/** @brief Fades Out an object that implements the CCRGBAProtocol protocol. It modifies the opacity from 255 to 0.
The "reverse" of this action is FadeIn
*/
class CC_DLL CCFadeOut : public CCActionInterval
{
public:
virtual void update(float time);
virtual CCActionInterval* reverse(void);
virtual CCObject* copyWithZone(CCZone* pZone);
public:
/** creates the action */
static CCFadeOut* create(float d);
};
/** @brief Fades an object that implements the CCRGBAProtocol protocol. It modifies the opacity from the current value to a custom one.
@warning This action doesn't support "reverse"
*/
class CC_DLL CCFadeTo : public CCActionInterval
{
public:
/** initializes the action with duration and opacity */
bool initWithDuration(float duration, GLubyte opacity);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
public:
/** creates an action with duration and opacity */
static CCFadeTo* create(float duration, GLubyte opacity);
protected:
GLubyte m_toOpacity;
GLubyte m_fromOpacity;
};
/** @brief Tints a CCNode that implements the CCNodeRGB protocol from current tint to a custom one.
@warning This action doesn't support "reverse"
@since v0.7.2
*/
class CC_DLL CCTintTo : public CCActionInterval
{
public:
/** initializes the action with duration and color */
bool initWithDuration(float duration, GLubyte red, GLubyte green, GLubyte blue);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
public:
/** creates an action with duration and color */
static CCTintTo* create(float duration, GLubyte red, GLubyte green, GLubyte blue);
protected:
ccColor3B m_to;
ccColor3B m_from;
};
/** @brief Tints a CCNode that implements the CCNodeRGB protocol from current tint to a custom one.
@since v0.7.2
*/
class CC_DLL CCTintBy : public CCActionInterval
{
public:
/** initializes the action with duration and color */
bool initWithDuration(float duration, GLshort deltaRed, GLshort deltaGreen, GLshort deltaBlue);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void update(float time);
virtual CCActionInterval* reverse(void);
public:
/** creates an action with duration and color */
static CCTintBy* create(float duration, GLshort deltaRed, GLshort deltaGreen, GLshort deltaBlue);
protected:
GLshort m_deltaR;
GLshort m_deltaG;
GLshort m_deltaB;
GLshort m_fromR;
GLshort m_fromG;
GLshort m_fromB;
};
/** @brief Delays the action a certain amount of seconds
*/
class CC_DLL CCDelayTime : public CCActionInterval
{
public:
virtual void update(float time);
virtual CCActionInterval* reverse(void);
virtual CCObject* copyWithZone(CCZone* pZone);
public:
/** creates the action */
static CCDelayTime* create(float d);
};
/** @brief Executes an action in reverse order, from time=duration to time=0
@warning Use this action carefully. This action is not
sequenceable. Use it as the default "reversed" method
of your own actions, but using it outside the "reversed"
scope is not recommended.
*/
class CC_DLL CCReverseTime : public CCActionInterval
{
public:
~CCReverseTime(void);
CCReverseTime();
/** initializes the action */
bool initWithAction(CCFiniteTimeAction *pAction);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void stop(void);
virtual void update(float time);
virtual CCActionInterval* reverse(void);
public:
/** creates the action */
static CCReverseTime* create(CCFiniteTimeAction *pAction);
protected:
CCFiniteTimeAction *m_pOther;
};
class CCTexture2D;
/** @brief Animates a sprite given the name of an Animation */
class CC_DLL CCAnimate : public CCActionInterval
{
public:
CCAnimate();
~CCAnimate();
/** initializes the action with an Animation and will restore the original frame when the animation is over */
bool initWithAnimation(CCAnimation *pAnimation);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void stop(void);
virtual void update(float t);
virtual CCActionInterval* reverse(void);
public:
/** creates the action with an Animation and will restore the original frame when the animation is over */
static CCAnimate* create(CCAnimation *pAnimation);
CC_SYNTHESIZE_RETAIN(CCAnimation*, m_pAnimation, Animation)
protected:
std::vector<float>* m_pSplitTimes;
int m_nNextFrame;
CCSpriteFrame* m_pOrigFrame;
unsigned int m_uExecutedLoops;
};
/** Overrides the target of an action so that it always runs on the target
* specified at action creation rather than the one specified by runAction.
*/
class CC_DLL CCTargetedAction : public CCActionInterval
{
public:
CCTargetedAction();
virtual ~CCTargetedAction();
/** Create an action with the specified action and forced target */
static CCTargetedAction* create(CCNode* pTarget, CCFiniteTimeAction* pAction);
/** Init an action with the specified action and forced target */
bool initWithTarget(CCNode* pTarget, CCFiniteTimeAction* pAction);
virtual CCObject* copyWithZone(CCZone* pZone);
virtual void startWithTarget(CCNode *pTarget);
virtual void stop(void);
virtual void update(float time);
/** This is the target that the action will be forced to run with */
CC_SYNTHESIZE_RETAIN(CCNode*, m_pForcedTarget, ForcedTarget);
private:
CCFiniteTimeAction* m_pAction;
};
// end of actions group
/// @}
NS_CC_END
#endif //__ACTION_CCINTERVAL_ACTION_H__
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