PremultipliedAlphaTest类 参考

#include <ParticleTest.h>

类 PremultipliedAlphaTest 继承关系图:

PremultipliedAlphaTest 的协作图:

Public 成员函数
	CREATE_FUNC (PremultipliedAlphaTest)
virtual void	onEnter () override
void	readdParticle (float delta)
virtual std::string	title () const override
virtual std::string	subtitle () const override
Public 成员函数 继承自 ParticleDemo
	~ParticleDemo ()
void	toggleCallback (cocos2d::Ref *sender)
void	onTouchesBegan (const std::vector< cocos2d::Touch * > &touches, cocos2d::Event *event)
void	onTouchesMoved (const std::vector< cocos2d::Touch * > &touches, cocos2d::Event *event)
void	onTouchesEnded (const std::vector< cocos2d::Touch * > &touches, cocos2d::Event *event)
virtual void	update (float dt) override
void	setEmitterPosition ()
Public 成员函数 继承自 TestCase
	TestCase ()
	~TestCase ()
virtual Type	getTestType () const
virtual float	getDuration () const
virtual std::string	getExpectedOutput () const
virtual std::string	getActualOutput () const
virtual void	restartTestCallback (cocos2d::Ref *sender)
virtual void	nextTestCallback (cocos2d::Ref *sender)
virtual void	priorTestCallback (cocos2d::Ref *sender)
virtual void	onBackCallback (cocos2d::Ref *sender)
void	setTestSuite (TestSuite *testSuite)
TestSuite *	getTestSuite () const
float	getRunTime () const
void	setTestCaseName (const std::string &name)
std::string	getTestCaseName () const
const cocos2d::Label *	getSubtitleLable () const
const cocos2d::MenuItemImage *	getRestartTestItem () const

Private 属性
bool	_hasEmitter

额外继承的成员函数
Public 类型 继承自 TestCase
enum class	Type { ROBUSTNESS , UNIT , GRAPHICAL_STATIC , MANUAL }
Public 属性 继承自 TestCase
CC_CONSTRUCTOR_ACCESS	__pad0__: virtual bool init() override
Protected 属性 继承自 ParticleDemo
cocos2d::ParticleSystemQuad *	_emitter
cocos2d::Sprite *	_background
cocos2d::LayerColor *	_color
Protected 属性 继承自 TestCase
cocos2d::MenuItemImage *	_priorTestItem
cocos2d::MenuItemImage *	_restartTestItem
cocos2d::MenuItemImage *	_nextTestItem
cocos2d::Label *	_titleLabel
cocos2d::Label *	_subtitleLabel

详细描述

在文件 ParticleTest.h 第 342 行定义.

成员函数说明

CREATE_FUNC()

PremultipliedAlphaTest::CREATE_FUNC

(

PremultipliedAlphaTest

)

onEnter()

void PremultipliedAlphaTest::onEnter ( )

overridevirtual

重载 ParticleDemo .

在文件 ParticleTest.cpp 第 1856 行定义.

{
    ParticleDemo::onEnter();
 
    _color->setColor(Color3B::BLUE);
    this->removeChild(_background, true);
    _background = nullptr;
 
    _emitter = ParticleSystemQuad::create("Particles/BoilingFoam.plist");
    _emitter->retain();
    // Particle Designer "normal" blend func causes black halo on premul textures (ignores multiplication)
    //this->emitter.blendFunc = (BlendFunc){ BlendFactor::SRC_ALPHA, BlendFactor::ONE_MINUS_SRC_ALPHA };
 
    // Cocos2d "normal" blend func for premul causes alpha to be ignored (oversaturates colors)
    _emitter->setBlendFunc( BlendFunc::ALPHA_PREMULTIPLIED );
 
    CCASSERT(_emitter->isOpacityModifyRGB(), "Particle texture does not have premultiplied alpha, test is useless");
 
    // Toggle next line to see old behavior
    //  this->emitter.opacityModifyRGB = NO;
 
    _emitter->setStartColor(Color4F(1.0f, 1.0f, 1.0f, 1.0f));
    _emitter->setEndColor(Color4F(1.0f, 1.0f, 1.0f, 0.0f));
    _emitter->setStartColorVar(Color4F(0.0f, 0.0f, 0.0f, 0.0f));
    _emitter->setEndColorVar(Color4F(0.0f, 0.0f, 0.0f, 0.0f));
 
    this->addChild(_emitter, 10);
    _hasEmitter = true;
    
    schedule(CC_SCHEDULE_SELECTOR(PremultipliedAlphaTest::readdParticle), 1.0f);
}

引用了 ParticleDemo::_background, ParticleDemo::_color, ParticleDemo::_emitter, _hasEmitter, ParticleDemo::onEnter() , 以及 readdParticle().

函数调用图:

readdParticle()

void PremultipliedAlphaTest::readdParticle

(

float

delta

)

在文件 ParticleTest.cpp 第 1842 行定义.

{
    if (_hasEmitter)
    {
        _emitter->removeFromParent();
    }
    else
    {
        this->addChild(_emitter);
    }
    
    _hasEmitter = !_hasEmitter;
}

引用了 ParticleDemo::_emitter , 以及 _hasEmitter.

被这些函数引用 onEnter().

这是这个函数的调用关系图:

subtitle()

std::string PremultipliedAlphaTest::subtitle ( ) const

overridevirtual

重载 ParticleDemo .

在文件 ParticleTest.cpp 第 1837 行定义.

{
    return "no black halo, particles should fade out\n animation should be normal";
}

title()

std::string PremultipliedAlphaTest::title ( ) const

overridevirtual

重载 ParticleDemo .

在文件 ParticleTest.cpp 第 1832 行定义.

{
    return "premultiplied alpha and readd child test";
}

类成员变量说明

_hasEmitter

bool PremultipliedAlphaTest::_hasEmitter

private

在文件 ParticleTest.h 第 344 行定义.

被这些函数引用 onEnter() , 以及 readdParticle().

---

该类的文档由以下文件生成:

• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/ParticleTest/ParticleTest.h
• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/ParticleTest/ParticleTest.cpp