mirror of https://github.com/axmolengine/axmol.git
83 lines
3.3 KiB
C
83 lines
3.3 KiB
C
|
/****************************************************************************
|
||
|
|
Copyright (c) 2010-2011 cocos2d-x.org
|
||
|
|
Copyright (c) 2008, 2009 Jason Booth
|
||
|
|
|
||
|
|
http://www.cocos2d-x.org
|
||
|
|
|
||
|
|
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.
|
||
|
|
****************************************************************************/
|
||
|
|
#ifndef __CCMOTION_STREAK_H__
|
||
|
|
#define __CCMOTION_STREAK_H__
|
||
|
|
|
||
|
|
#include "CCNode.h"
|
||
|
|
#include "CCProtocols.h"
|
||
|
|
|
||
|
|
namespace cocos2d {
|
||
|
|
|
||
|
|
class CCRibbon;
|
||
|
|
/**
|
||
|
|
* @brief CCMotionStreak manages a Ribbon based on it's motion in absolute space.
|
||
|
|
* You construct it with a fadeTime, minimum segment size, texture path, texture
|
||
|
|
* length and color. The fadeTime controls how long it takes each vertex in
|
||
|
|
* the streak to fade out, the minimum segment size it how many pixels the
|
||
|
|
* streak will move before adding a new ribbon segement, and the texture
|
||
|
|
* length is the how many pixels the texture is stretched across. The texture
|
||
|
|
* is vertically aligned along the streak segemnts.
|
||
|
|
*
|
||
|
|
* Limitations:
|
||
|
|
* CCMotionStreak, by default, will use the GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA blending function.
|
||
|
|
* This blending function might not be the correct one for certain textures.
|
||
|
|
* But you can change it by using:
|
||
|
|
* [obj setBlendFunc: (ccBlendfunc) {new_src_blend_func, new_dst_blend_func}];
|
||
|
|
*
|
||
|
|
* @since v0.8.1
|
||
|
|
*/
|
||
|
|
class CC_DLL CCMotionStreak : public CCNode, public CCTextureProtocol
|
||
|
|
{
|
||
|
|
/** Ribbon used by MotionStreak (weak reference) */
|
||
|
|
CC_PROPERTY_READONLY(CCRibbon*, m_pRibbon, Ribbon)
|
||
|
|
//CCTextureProtocol methods
|
||
|
|
CC_PROPERTY(CCTexture2D*, m_pTexture, Texture)
|
||
|
|
CC_PROPERTY(ccBlendFunc, m_tBlendFunc, BlendFunc)
|
||
|
|
public:
|
||
|
|
CCMotionStreak()
|
||
|
|
: m_pRibbon(NULL)
|
||
|
|
, m_pTexture(NULL)
|
||
|
|
, m_fSegThreshold(0.0)
|
||
|
|
, m_fWidth(0.0)
|
||
|
|
{}
|
||
|
|
virtual ~CCMotionStreak(){}
|
||
|
|
/** creates the a MotionStreak. The image will be loaded using the TextureMgr. */
|
||
|
|
static CCMotionStreak * streakWithFade(float fade, float seg, const char *imagePath, float width, float length, const ccColor4B& color);
|
||
|
|
|
||
|
|
/** initializes a MotionStreak. The file will be loaded using the TextureMgr. */
|
||
|
|
bool initWithFade(float fade, float seg, const char *imagePath, float width, float length, const ccColor4B& color);
|
||
|
|
|
||
|
|
/** polling function */
|
||
|
|
void update(ccTime delta);
|
||
|
|
protected:
|
||
|
|
float m_fSegThreshold;
|
||
|
|
float m_fWidth;
|
||
|
|
CCPoint m_tLastLocation;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace cocos2d
|
||
|
|
|
||
|
|
#endif //__CCMOTION_STREAK_H__
|