Magic_Game/core/Transition/Transition.cpp

140 lines
2.9 KiB
C++

#include "..\e2dbase.h"
#include "..\e2dtransition.h"
#include "..\e2dnode.h"
e2d::Transition::Transition(double duration)
: _end(false)
, _last()
, _delta(0)
, _outScene(nullptr)
, _inScene(nullptr)
, _outLayer(nullptr)
, _inLayer(nullptr)
, _outLayerParam()
, _inLayerParam()
{
_duration = std::max(duration, 0.0);
}
e2d::Transition::~Transition()
{
SafeRelease(_outLayer);
SafeRelease(_inLayer);
GC::getInstance()->safeRelease(_outScene);
GC::getInstance()->safeRelease(_inScene);
}
bool e2d::Transition::isDone()
{
return _end;
}
void e2d::Transition::_init(Scene * prev, Scene * next)
{
auto renderer = Renderer::getInstance();
// 创建图层
HRESULT hr = renderer->getRenderTarget()->CreateLayer(&_inLayer);
if (SUCCEEDED(hr))
{
hr = renderer->getRenderTarget()->CreateLayer(&_outLayer);
}
if (FAILED(hr))
{
throw SystemException(L"场景过渡动画图层创建失败");
}
_last = Game::getInstance()->getTotalDuration();
_outScene = prev;
_inScene = next;
if (_outScene) _outScene->retain();
if (_inScene) _inScene->retain();
_windowSize = Window::getInstance()->getSize();
_outLayerParam = _inLayerParam = D2D1::LayerParameters(
D2D1::InfiniteRect(),
nullptr,
D2D1_ANTIALIAS_MODE_PER_PRIMITIVE,
D2D1::Matrix3x2F::Identity(),
1.0,
renderer->getSolidColorBrush(),
D2D1_LAYER_OPTIONS_NONE
);
}
void e2d::Transition::_update()
{
// 计算动作进度
if (_duration == 0)
{
_delta = 1;
}
else
{
_delta = (Game::getInstance()->getTotalDuration() - _last).seconds() / _duration;
_delta = std::min(_delta, 1.0);
}
this->_updateCustom();
// 更新场景内容
if (_outScene)
{
_outScene->update();
}
if (_inScene)
{
_inScene->update();
}
}
void e2d::Transition::_render()
{
auto pRT = Renderer::getInstance()->getRenderTarget();
if (_outScene)
{
Point rootPos = _outScene->getRoot()->getPos();
auto clipRect = D2D1::RectF(
float(std::max(rootPos.x, 0.0)),
float(std::max(rootPos.y, 0.0)),
float(std::min(rootPos.x + _windowSize.width, _windowSize.width)),
float(std::min(rootPos.y + _windowSize.height, _windowSize.height))
);
pRT->SetTransform(D2D1::Matrix3x2F::Identity());
pRT->PushAxisAlignedClip(clipRect, D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
pRT->PushLayer(_outLayerParam, _outLayer);
_outScene->render();
pRT->PopLayer();
pRT->PopAxisAlignedClip();
}
if (_inScene)
{
Point rootPos = _inScene->getRoot()->getPos();
auto clipRect = D2D1::RectF(
float(std::max(rootPos.x, 0.0)),
float(std::max(rootPos.y, 0.0)),
float(std::min(rootPos.x + _windowSize.width, _windowSize.width)),
float(std::min(rootPos.y + _windowSize.height, _windowSize.height))
);
pRT->SetTransform(D2D1::Matrix3x2F::Identity());
pRT->PushAxisAlignedClip(clipRect, D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
pRT->PushLayer(_inLayerParam, _inLayer);
_inScene->render();
pRT->PopLayer();
pRT->PopAxisAlignedClip();
}
}
void e2d::Transition::_stop()
{
_end = true;
_reset();
}