Sprite* HelloWorld::spriteWithColor(Color4F bgColor, float textureWidth, float textureHeight)
{
// 1: Create new RenderTexture
RenderTexture *rt = RenderTexture::create(textureWidth, textureHeight);
// 2: Call RenderTexture:begin
rt->beginWithClear(bgColor.r, bgColor.g, bgColor.b, bgColor.a);
// 3: Draw into the texture
//// gradient
_gradient_command.init(rt->getGlobalZOrder());
_gradient_command.func = std::bind(&HelloWorld::onDrawGradient, this, textureWidth, textureHeight);
auto renderer = Director::getInstance()->getRenderer();
renderer->addCommand(&_gradient_command);
//// noise cloud
BlendFunc blendFunc;
blendFunc.src = GL_DST_COLOR;
blendFunc.dst = GL_ZERO;
Sprite *noise = Sprite::create("Noise.png");
noise->setBlendFunc(blendFunc);
noise->setPosition(Vec2(textureWidth / 2, textureHeight / 2));
noise->visit();
// 4: Call CCRenderTexture:end
rt->end();
// 5: Create a new Sprite from the texture
return Sprite::createWithTexture(rt->getSprite()->getTexture());
}
Sprite* HelloWorld::stripedSpriteWithColor(Color4F c1, Color4F c2, float textureWidth, float textureHeight, int nStripes)
{
// 1: Create new RenderTexture
RenderTexture *rt = RenderTexture::create(textureWidth, textureHeight);
// 2: Call RenderTexture:begin
rt->beginWithClear(c1.r, c1.g, c1.b, c1.a);
// 3: Draw into the texture
// we have to run custom command on renderer
_stripes_command.init(rt->getGlobalZOrder());
_stripes_command.func = std::bind(&HelloWorld::onDrawStripes, this, c2, textureWidth, textureHeight, nStripes);
auto renderer = Director::getInstance()->getRenderer();
renderer->addCommand(&_stripes_command);
// gradient
_gradient_command.init(rt->getGlobalZOrder());
_gradient_command.func = std::bind(&HelloWorld::onDrawGradient, this, textureWidth, textureHeight);
renderer->addCommand(&_gradient_command);
// gradient
_tophighlight_command.init(rt->getGlobalZOrder());
_tophighlight_command.func = std::bind(&HelloWorld::onDrawTopHighlight, this, textureWidth, textureHeight);
renderer->addCommand(&_tophighlight_command);
// noise cloud
BlendFunc blendFunc;
blendFunc.src = GL_DST_COLOR;
blendFunc.dst = GL_ZERO;
Sprite *noise = Sprite::create("Noise.png");
noise->setBlendFunc(blendFunc);
noise->setPosition(Vec2(textureWidth / 2, textureHeight / 2));
noise->visit();
// 4: Call CCRenderTexture:end
rt->end();
// 5: Create a new Sprite from the texture
return Sprite::createWithTexture(rt->getSprite()->getTexture());
}
