Dear Sirs,
I port the lightning source to cocos2d-x platform according to http://www.cocos2d-iphone.org/forum/topic/370/page/2
the lightning implementation is by using glVertexPointer, and so it looks like a little simple.
Maybe someone will need or improve them to more like the lightning effect.
CCLightning.h.zip (0.7 KB)
CCLightning.cpp.zip (1.9 KB)
HelloWorldScene.h.zip (0.6 KB)
HelloWorldScene.cpp.zip (1.0 KB)
Cool!
yep… nice work… but i couldn’t use it… coz it gives me a compiler error… on
CCLightning* CCLightning::lightningWithStrikePoint(CCPoint strikePoint)
{
CCLightning* lightning = new CCLightning(); >>>>>>>>>>>error: allocating an object of abstract class type 'CCLightning'
if (lightning && lightning->initWithStrikePoint(strikePoint))
{
lightning->autorelease();
return lightning;
}
CC_SAFE_DELETE(lightning);
return NULL;
}
CCLightning* CCLightning::lightningWithStrikePoint(CCPoint strikePoint,CCPoint strikePoint2)
{
CCLightning* lightning = new CCLightning(); >>>>>>>>>>>error: allocating an object of abstract class type 'CCLightning'
if (lightning && lightning->initWithStrikePoint(strikePoint,strikePoint2))
{
lightning->autorelease();
return lightning;
}
CC_SAFE_DELETE(lightning);
return NULL;
}
error: allocating an object of abstract class type ‘CCLightning’
sorry, I missed something and will fix it tomorrow
No worries mate… looking fwd it to… 
This is amazing! You just gave me so many ideas for amazing games I could do!
Hi,
I checked the source again and found they work fine. Because CCLightning inherited CCRGBAProtocol, it had to
implement the four functions in CCRGBAProtocol class.
virtual void setColor(const ccColor3B& color) = 0;
virtual const ccColor3B& getColor(void) = 0;
virtual GLubyte getOpacity(void) = 0;
virtual void setOpacity(GLubyte opacity) = 0;
CCLightning implemented them, too.
CCLightning.h
CC_PROPERTY(GLubyte, m_opacity, Opacity)
CC_PROPERTY_PASS_BY_REF(ccColor3B, m_tColor, Color);
CCLightning.cpp
GLubyte CCLightning::getOpacity(void)
{
return m_opacity;
}
void CCLightning::setOpacity(GLubyte opacity)
{
m_opacity = opacity;
}
const ccColor3B& CCLightning::getColor(void)
{
return m_tColor;
}
void CCLightning::setColor(const ccColor3B& color3)
{
m_tColor = color3;
}
There is a compiling error if those virtual functions are wrong. Could you check the files you downloaded again?
If anything wrong, please tell me.
best regards.
nuwan nara wrote:
yep… nice work… but i couldn’t use it… coz it gives me a compiler error… on
>
[…]
>
error: allocating an object of abstract class type ‘CCLightning’
I use Microsoft Visual Studio. The behavior of compiler may be somehow different so you may not reproduce the issue.
1>cclightning.h : warning C4819: The file contains a character that cannot be represented in the current code page (950). Save the file in Unicode format to prevent data loss
1>cclightning.cpp(19): error C2057: expected constant expression
1>cclightning.cpp(19): error C2466: cannot allocate an array of constant size 0
1>cclightning.cpp(19): error C2133: 'vertices' : unknown size
1>cclightning.cpp(22): warning C4018: '<' : signed/unsigned mismatch
1>cclightning.cpp(74): warning C4244: '+=' : conversion from 'double' to 'float', possible loss of data
1>cclightning.cpp(76): warning C4244: '+=' : conversion from 'double' to 'float', possible loss of data
1>cclightning.cpp(106): error C2259: 'cocos2d::CCLightning' : cannot instantiate abstract class
1> due to following members:
1> 'void cocos2d::CCRGBAProtocol::setIsOpacityModifyRGB(bool)' : is abstract
1> d:\projects\library\cocos2d-1.0.1-x-0.11.0\cocos2dx\include\ccprotocols.h(66) : see declaration of 'cocos2d::CCRGBAProtocol::setIsOpacityModifyRGB'
1> 'bool cocos2d::CCRGBAProtocol::getIsOpacityModifyRGB(void)' : is abstract
1> d:\projects\library\cocos2d-1.0.1-x-0.11.0\cocos2dx\include\ccprotocols.h(71) : see declaration of 'cocos2d::CCRGBAProtocol::getIsOpacityModifyRGB'
1>cclightning.cpp(118): error C2259: 'cocos2d::CCLightning' : cannot instantiate abstract class
1> due to following members:
1> 'void cocos2d::CCRGBAProtocol::setIsOpacityModifyRGB(bool)' : is abstract
1> d:\projects\library\cocos2d-1.0.1-x-0.11.0\cocos2dx\include\ccprotocols.h(66) : see declaration of 'cocos2d::CCRGBAProtocol::setIsOpacityModifyRGB'
1> 'bool cocos2d::CCRGBAProtocol::getIsOpacityModifyRGB(void)' : is abstract
1> d:\projects\library\cocos2d-1.0.1-x-0.11.0\cocos2dx\include\ccprotocols.h(71) : see declaration of 'cocos2d::CCRGBAProtocol::getIsOpacityModifyRGB'
There are actually 6 functions the CRGBA protocol requires. If your class has no children, you can simply use something like
//CCRGBAProtocol
CC_SYNTHESIZE(GLubyte, m_cOpacity, Opacity);
CC_SYNTHESIZE_PASS_BY_REF(ccColor3B, m_tColor, Color);
CC_SYNTHESIZE(bool, m_bIsOpacityModifyRGB, IsOpacityModifyRGB);
However, if your class has children (eg, a layer or a control or something like that), then you need to also pass through the colours to children.
Normally, it follows this sort of method:
//CRGBA protocol
void CCControl::setColor(const ccColor3B& color)
{
m_tColor=color;
CCObject* child;
CCArray* children=getChildren();
CCARRAY_FOREACH(children, child)
{
CCRGBAProtocol* pNode = dynamic_cast(child);
if (pNode)
{
pNode->setColor(m_tColor);
}
}
}
const ccColor3B& CCControl::getColor(void)
{
return m_tColor;
}
void CCControl::setOpacity(GLubyte opacity)
{
m_cOpacity = opacity;
CCObject* child;
CCArray* children=getChildren();
CCARRAY_FOREACH(children, child)
{
CCRGBAProtocol* pNode = dynamic_cast(child);
if (pNode)
{
pNode->setOpacity(opacity);
}
}
}
GLubyte CCControl::getOpacity()
{
return m_cOpacity;
}
void CCControl::setIsOpacityModifyRGB(bool opacityModifyRGB)
{
m_bIsOpacityModifyRGB=opacityModifyRGB;
CCObject* child;
CCArray* children=getChildren();
CCARRAY_FOREACH(children, child)
{
CCRGBAProtocol* pNode = dynamic_cast(child);
if (pNode)
{
pNode->setIsOpacityModifyRGB(opacityModifyRGB);
}
}
}
bool CCControl::getIsOpacityModifyRGB()
{
return m_bIsOpacityModifyRGB;
}
do not work
I fix few places for run this, but do not saw Lightning
it just was for opengl 1
hi,can you change the code for opengl 2.0. my opengl not well.and my english too.