180 lines
3.1 KiB
C++
180 lines
3.1 KiB
C++
#include "..\e2dmanager.h"
|
|
#include "..\e2dbase.h"
|
|
#include "..\e2dtransition.h"
|
|
|
|
static bool s_bSaveCurrScene = true;
|
|
static e2d::Scene * s_pCurrScene = nullptr;
|
|
static e2d::Scene * s_pNextScene = nullptr;
|
|
static e2d::Transition * s_pTransition = nullptr;
|
|
static std::stack<e2d::Scene*> s_SceneStack;
|
|
|
|
void e2d::SceneManager::enter(Scene * scene, Transition * transition /* = nullptr */, bool saveCurrentScene /* = true */)
|
|
{
|
|
ASSERT(scene, "Next scene NULL pointer exception!");
|
|
scene->retain();
|
|
|
|
// 保存下一场景的指针
|
|
s_pNextScene = scene;
|
|
|
|
// 设置切换场景动作
|
|
if (transition)
|
|
{
|
|
if (s_pTransition)
|
|
{
|
|
s_pTransition->_stop();
|
|
s_pTransition->release();
|
|
}
|
|
s_pTransition = transition;
|
|
transition->retain();
|
|
transition->_init(s_pCurrScene, s_pNextScene);
|
|
transition->_update();
|
|
}
|
|
|
|
if (s_pCurrScene)
|
|
{
|
|
s_bSaveCurrScene = saveCurrentScene;
|
|
}
|
|
}
|
|
|
|
void e2d::SceneManager::back(Transition * transition /* = nullptr */)
|
|
{
|
|
// 栈为空时，调用返回场景函数失败
|
|
WARN_IF(s_SceneStack.size() == 0, "Scene stack is empty!");
|
|
if (s_SceneStack.size() == 0) return;
|
|
|
|
// 从栈顶取出场景指针，作为下一场景
|
|
s_pNextScene = s_SceneStack.top();
|
|
s_SceneStack.pop();
|
|
|
|
// 返回上一场景时，不保存当前场景
|
|
if (s_pCurrScene)
|
|
{
|
|
s_bSaveCurrScene = false;
|
|
}
|
|
|
|
// 设置切换场景动作
|
|
if (transition)
|
|
{
|
|
s_pTransition = transition;
|
|
transition->retain();
|
|
transition->_init(s_pCurrScene, s_pNextScene);
|
|
transition->_update();
|
|
}
|
|
}
|
|
|
|
void e2d::SceneManager::clear()
|
|
{
|
|
// 清空场景栈
|
|
while (s_SceneStack.size())
|
|
{
|
|
auto temp = s_SceneStack.top();
|
|
SafeRelease(&temp);
|
|
s_SceneStack.pop();
|
|
}
|
|
}
|
|
|
|
e2d::Scene * e2d::SceneManager::getCurrentScene()
|
|
{
|
|
return s_pCurrScene;
|
|
}
|
|
|
|
std::stack<e2d::Scene*> e2d::SceneManager::getSceneStack()
|
|
{
|
|
return s_SceneStack;
|
|
}
|
|
|
|
bool e2d::SceneManager::isTransitioning()
|
|
{
|
|
return s_pTransition != nullptr;
|
|
}
|
|
|
|
void e2d::SceneManager::__update()
|
|
{
|
|
if (s_pTransition == nullptr)
|
|
{
|
|
// 更新场景内容
|
|
if (s_pCurrScene)
|
|
{
|
|
s_pCurrScene->_update();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// 更新场景动作
|
|
s_pTransition->_update();
|
|
|
|
if (s_pTransition->isDone())
|
|
{
|
|
s_pTransition->release();
|
|
s_pTransition = nullptr;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
// 下一场景指针不为空时，切换场景
|
|
if (s_pNextScene)
|
|
{
|
|
// 执行当前场景的 onExit 函数
|
|
s_pCurrScene->onExit();
|
|
|
|
// 若要保存当前场景，把它放入栈中
|
|
if (s_bSaveCurrScene)
|
|
{
|
|
s_SceneStack.push(s_pCurrScene);
|
|
}
|
|
else
|
|
{
|
|
SafeRelease(&s_pCurrScene);
|
|
}
|
|
|
|
// 执行下一场景的 onEnter 函数
|
|
s_pNextScene->onEnter();
|
|
|
|
s_pCurrScene = s_pNextScene; // 切换场景
|
|
s_pNextScene = nullptr; // 下一场景置空
|
|
}
|
|
}
|
|
|
|
void e2d::SceneManager::__render()
|
|
{
|
|
if (s_pTransition)
|
|
{
|
|
s_pTransition->_render();
|
|
}
|
|
else
|
|
{
|
|
// 绘制当前场景
|
|
if (s_pCurrScene)
|
|
{
|
|
s_pCurrScene->_render();
|
|
}
|
|
}
|
|
}
|
|
|
|
bool e2d::SceneManager::__init()
|
|
{
|
|
// 若游戏初始化时场景不为空，进入该场景
|
|
if (s_pNextScene)
|
|
{
|
|
s_pCurrScene = s_pNextScene;
|
|
s_pCurrScene->onEnter();
|
|
s_pNextScene = nullptr;
|
|
}
|
|
|
|
// 更新场景内容
|
|
SceneManager::__update();
|
|
|
|
return true;
|
|
}
|
|
|
|
void e2d::SceneManager::__uninit()
|
|
{
|
|
SafeRelease(&s_pCurrScene);
|
|
SafeRelease(&s_pNextScene);
|
|
SafeRelease(&s_pTransition);
|
|
SceneManager::clear();
|
|
}
|