void showStarParticleEffect(int color,Point position,Node* node){
CCLOG("Particle Particle Particle");
ParticleExplosion* effect = ParticleExplosion::create();
effect->setTexture(Director::getInstance()->getTextureCache()->addImage("star.png"));
effect->setTotalParticles(300);
effect->setStartColor(getColor4F(color));
effect->setStartColorVar(Color4F(0,0,0,1));
effect->setEndColor(getColor4F(color));
effect->setEndColorVar(Color4F(0,0,0,1));
effect->setStartSize(25.0f); // 初始化粒子元素的尺寸
effect->setGravity(Point(0,-400));
effect->setDuration(0.2f);
effect->setLife(2.0f);
effect->setSpeed(300.0f);
effect->setSpeedVar(10);
effect->setPosition(position);
node->addChild(effect);
}
void CC3UniformlyEvolvingPointParticle::updateBeforeTransform( CC3NodeUpdatingVisitor* visitor )
{
super::updateBeforeTransform( visitor );
if( !isAlive() )
return;
GLfloat dt = visitor->getDeltaTime();
if ( hasSize() )
setSize( getSize() + (m_sizeVelocity * dt) );
if ( hasColor() )
{
// We have to do the math on each component instead of using the color math functions
// because the functions clamp prematurely, and we need negative values for the velocity.
ccColor4F currColor = getColor4F();
setColor4F( ccc4f(CLAMP(currColor.r + (m_colorVelocity.r * dt), 0.0f, 1.0f),
CLAMP(currColor.g + (m_colorVelocity.g * dt), 0.0f, 1.0f),
CLAMP(currColor.b + (m_colorVelocity.b * dt), 0.0f, 1.0f),
CLAMP(currColor.a + (m_colorVelocity.a * dt), 0.0f, 1.0f))
);
}
}
