764 lines
14 KiB
C++
764 lines
14 KiB
C++
#include "..\ebase.h"
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#include "..\Win\winbase.h"
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#include "..\emanagers.h"
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#include "..\enodes.h"
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#include "..\etransitions.h"
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#include <stack>
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#include <thread>
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#include <imm.h>
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#pragma comment (lib ,"imm32.lib")
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using namespace std::this_thread;
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using namespace std::chrono;
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// 唯一实例指针
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static e2d::EApp * s_pInstance = nullptr;
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// 场景栈
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static std::stack<e2d::EScene*> s_SceneStack;
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// 游戏开始时间
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static steady_clock::time_point s_tStart;
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e2d::EApp::EApp()
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: m_bEnd(false)
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, m_bPaused(false)
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, m_bManualPaused(false)
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, m_bTransitional(false)
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, m_bTopMost(false)
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, m_bShowConsole(false)
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, m_nAnimationInterval(17LL)
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, m_ClearColor(EColor::BLACK)
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, m_pCurrentScene(nullptr)
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, m_pNextScene(nullptr)
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{
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ASSERT(s_pInstance == nullptr, "EApp instance already exists!");
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s_pInstance = this; // 保存实例对象
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CoInitialize(NULL);
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}
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e2d::EApp::~EApp()
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{
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// 释放资源
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SafeReleaseInterface(&GetSolidColorBrush());
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SafeReleaseInterface(&GetRenderTarget());
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SafeReleaseInterface(&GetFactory());
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SafeReleaseInterface(&GetImagingFactory());
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SafeReleaseInterface(&GetDirectWriteFactory());
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CoUninitialize();
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}
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e2d::EApp * e2d::EApp::get()
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{
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ASSERT(s_pInstance != nullptr, "Nonexistent EApp instance.");
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return s_pInstance; // 获取 EApp 的唯一实例
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}
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bool e2d::EApp::init(const EString &title, UINT32 width, UINT32 height)
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{
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return init(title, width, height, EWindowStyle());
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}
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bool e2d::EApp::init(const EString &title, UINT32 width, UINT32 height, EWindowStyle wStyle)
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{
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HRESULT hr;
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// 注册窗口类
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WNDCLASSEX wcex = { sizeof(WNDCLASSEX) };
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wcex.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
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wcex.lpfnWndProc = EApp::WndProc;
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wcex.cbClsExtra = 0;
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wcex.cbWndExtra = sizeof(LONG_PTR);
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wcex.hInstance = HINST_THISCOMPONENT;
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wcex.hbrBackground = (HBRUSH)(GetStockObject(BLACK_BRUSH));
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wcex.lpszMenuName = NULL;
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wcex.hCursor = LoadCursor(NULL, IDI_APPLICATION);
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wcex.lpszClassName = L"Easy2DApp";
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// 设置窗口是否有关闭按钮
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if (wStyle.m_bNoClose)
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{
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wcex.style |= CS_NOCLOSE;
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}
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// 设置程序图标
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if (wStyle.m_pIconID)
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{
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wcex.hIcon = (HICON)::LoadImage(
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GetModuleHandle(NULL),
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wStyle.m_pIconID,
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IMAGE_ICON,
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0,
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0,
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LR_DEFAULTCOLOR | LR_CREATEDIBSECTION | LR_DEFAULTSIZE);
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}
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RegisterClassEx(&wcex);
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// 因为 CreateWindow 函数使用的是像素大小，获取系统的 DPI 以使它
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// 适应窗口缩放
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FLOAT dpiX, dpiY;
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// 工厂将返回当前的系统 DPI，这个值也将用来创建窗口
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GetFactory()->GetDesktopDpi(&dpiX, &dpiY);
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width = static_cast<UINT>(ceil(width * dpiX / 96.f));
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height = static_cast<UINT>(ceil(height * dpiY / 96.f));
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// 获取屏幕分辨率
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UINT screenWidth = static_cast<UINT>(GetSystemMetrics(SM_CXSCREEN));
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UINT screenHeight = static_cast<UINT>(GetSystemMetrics(SM_CYSCREEN));
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// 当输入的窗口大小比分辨率大时，给出警告
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WARN_IF(screenWidth < width || screenHeight < height, "The window is larger than screen!");
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// 取最小值
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width = min(width, screenWidth);
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height = min(height, screenHeight);
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// 创建窗口样式
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DWORD dwStyle = WS_OVERLAPPED | WS_SYSMENU;
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if (!wStyle.m_bNoMiniSize)
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{
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dwStyle |= WS_MINIMIZEBOX;
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}
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// 保存窗口是否置顶显示
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m_bTopMost = wStyle.m_bTopMost;
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// 保存窗口名称
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m_sTitle = title;
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// 创建窗口
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GetHWnd() = CreateWindow(
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L"Easy2DApp",
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m_sTitle.c_str(),
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dwStyle,
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0,
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0,
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width,
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height,
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NULL,
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NULL,
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HINST_THISCOMPONENT,
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this
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);
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hr = GetHWnd() ? S_OK : E_FAIL;
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if (SUCCEEDED(hr))
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{
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// 禁用输入法
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this->setKeyboardLayoutEnable(false);
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// 重设客户区大小
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this->setWindowSize(width, height);
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}
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else
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{
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UnregisterClass(L"E2DApp", HINST_THISCOMPONENT);
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}
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if (FAILED(hr))
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{
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MessageBox(nullptr, L"Initialize Failed!", L"Error", MB_OK);
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}
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return SUCCEEDED(hr);
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}
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void e2d::EApp::pause()
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{
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EApp::get()->m_bManualPaused = true;
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}
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void e2d::EApp::resume()
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{
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if (isPaused())
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{
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EApp::get()->m_bPaused = false;
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EApp::get()->m_bManualPaused = false;
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// 刷新当前时间
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GetNow() = steady_clock::now();
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// 重置动画和定时器
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EActionManager::_resetAllActions();
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ETimerManager::_resetAllTimers();
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}
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}
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bool e2d::EApp::isPaused()
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{
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return s_pInstance->m_bPaused || s_pInstance->m_bManualPaused;
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}
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void e2d::EApp::showConsole(bool show /* = true */)
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{
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static FILE * stdoutstream = nullptr;
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static FILE * stdinstream = nullptr;
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static FILE * stderrstream = nullptr;
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EApp::get()->m_bShowConsole = show;
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// 查找已存在的控制台句柄
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HWND hwnd = GetConsoleWindow();
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// 关闭控制台
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if (show)
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{
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if (hwnd)
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{
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ShowWindow(hwnd, SW_SHOWNORMAL);
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}
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else
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{
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// 显示一个新控制台
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if (AllocConsole())
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{
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freopen_s(&stdoutstream, "CONOUT$", "w+t", stdout);
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freopen_s(&stderrstream, "CONOUT$", "w+t", stderr);
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freopen_s(&stdinstream, "CONIN$", "r+t", stdin);
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}
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else
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{
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MessageBox(nullptr, L"Alloc Console Failed!", L"Error", MB_OK);
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}
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}
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}
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else
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{
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if (hwnd)
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{
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if (stdoutstream)
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{
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fclose(stdoutstream);
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fclose(stdinstream);
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fclose(stderrstream);
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stdoutstream = stdinstream = stderrstream = nullptr;
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}
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FreeConsole();
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}
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}
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}
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// 运行游戏
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void e2d::EApp::run()
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{
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ASSERT(GetHWnd() != nullptr, "Cannot find Game Window.");
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// 进入第一个场景
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_enterNextScene();
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// 关闭控制台
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if (!m_bShowConsole)
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{
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showConsole(false);
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}
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// 显示窗口
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ShowWindow(GetHWnd(), SW_SHOWNORMAL);
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UpdateWindow(GetHWnd());
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// 设置窗口置顶
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if (m_bTopMost)
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{
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SetWindowPos(GetHWnd(), HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
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}
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// 记录开始时间
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s_tStart = steady_clock::now();
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// 窗口消息
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MSG msg;
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while (!m_bEnd)
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{
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// 处理窗口消息
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while (PeekMessage(&msg, GetHWnd(), 0, 0, PM_REMOVE))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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// 执行主循环
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_mainLoop();
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}
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// 关闭控制台
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EApp::showConsole(false);
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}
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void e2d::EApp::setFPS(UINT32 fps)
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{
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fps = min(max(fps, 30), 120);
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s_pInstance->m_nAnimationInterval = 1000 / fps;
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}
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bool e2d::EApp::onActivate()
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{
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return true;
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}
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bool e2d::EApp::onInactive()
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{
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return true;
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}
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bool e2d::EApp::onCloseWindow()
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{
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return true;
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}
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void e2d::EApp::_mainLoop()
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{
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// 挂起时长
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static LONGLONG nWaitMS = 0L;
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// 时间间隔
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static LONGLONG nInterval;
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// 上一帧画面绘制时间
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static steady_clock::time_point tLast = steady_clock::now();
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// 刷新当前时间
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GetNow() = steady_clock::now();
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// 计算时间间隔
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nInterval = GetInterval(tLast);
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// 判断间隔时间是否足够
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if (nInterval >= m_nAnimationInterval)
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{
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// 记录当前时间
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tLast += microseconds(m_nAnimationInterval);
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// 游戏控制流程
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_onControl();
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// 刷新游戏画面
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_onRender();
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}
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else
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{
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// 计算挂起时长
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nWaitMS = m_nAnimationInterval - nInterval - 1;
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// 挂起线程，释放 CPU 占用
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if (nWaitMS > 1LL)
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{
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sleep_for(milliseconds(nWaitMS));
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}
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}
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}
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void e2d::EApp::_onControl()
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{
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// 正在切换场景时，执行场景切换动画
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if (m_bTransitional)
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{
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EActionManager::ActionProc();
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// 若场景切换未结束，不执行后面的部分
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if (m_bTransitional)
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{
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return;
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}
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}
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// 下一场景指针不为空时，切换场景
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if (m_pNextScene)
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{
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// 进入下一场景
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_enterNextScene();
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}
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// 断言当前场景非空
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ASSERT(m_pCurrentScene != nullptr, "Current scene NULL pointer exception.");
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EObjectManager::__flush(); // 刷新内存池
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ETimerManager::TimerProc(); // 定时器管理器执行程序
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EActionManager::ActionProc(); // 动作管理器执行程序
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}
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void e2d::EApp::_onRender()
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{
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HRESULT hr = S_OK;
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// 开始绘图
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GetRenderTarget()->BeginDraw();
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// 使用背景色清空屏幕
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GetRenderTarget()->Clear(D2D1::ColorF(m_ClearColor));
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// 绘制当前场景
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if (m_pCurrentScene)
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{
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m_pCurrentScene->_onRender();
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}
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// 切换场景时，同时绘制两场景
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if (m_bTransitional && m_pNextScene)
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{
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m_pNextScene->_onRender();
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}
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// 终止绘图
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hr = GetRenderTarget()->EndDraw();
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// 刷新界面
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UpdateWindow(GetHWnd());
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if (hr == D2DERR_RECREATE_TARGET)
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{
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// 如果 Direct3D 设备在执行过程中消失，将丢弃当前的设备相关资源
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// 并在下一次调用时重建资源
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hr = S_OK;
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SafeReleaseInterface(&GetRenderTarget());
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}
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if (FAILED(hr))
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{
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// 渲染时产生了未知的错误，退出游戏
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MessageBox(GetHWnd(), L"Game rendering failed!", L"Error", MB_OK);
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this->quit();
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}
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}
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void e2d::EApp::setWindowSize(UINT32 width, UINT32 height)
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{
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// 获取屏幕分辨率
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int screenWidth = GetSystemMetrics(SM_CXSCREEN);
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int screenHeight = GetSystemMetrics(SM_CYSCREEN);
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// 获取窗口大小（包含菜单栏）
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tagRECT rcWindow;
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GetWindowRect(GetHWnd(), &rcWindow);
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// 获取客户区大小
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tagRECT rcClient;
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GetClientRect(GetHWnd(), &rcClient);
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// 计算边框大小
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width += (rcWindow.right - rcWindow.left) - (rcClient.right - rcClient.left);
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height += (rcWindow.bottom - rcWindow.top) - (rcClient.bottom - rcClient.top);
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// 修改窗口大小，并设置窗口在屏幕居中
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MoveWindow(GetHWnd(), (screenWidth - width) / 2, (screenHeight - height) / 2, width, height, TRUE);
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}
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void e2d::EApp::setWindowTitle(const EString &title)
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{
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// 设置窗口标题
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SetWindowText(GetHWnd(), title.c_str());
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// 保存当前标题，用于修改窗口大小时恢复标题
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get()->m_sTitle = title;
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}
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e2d::EString e2d::EApp::getTitle()
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{
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return get()->m_sTitle;
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}
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float e2d::EApp::getWidth()
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{
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return GetRenderTarget()->GetSize().width;
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}
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float e2d::EApp::getHeight()
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{
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return GetRenderTarget()->GetSize().height;
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}
|
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|
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e2d::ESize e2d::EApp::getSize()
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{
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return ESize(GetRenderTarget()->GetSize().width, GetRenderTarget()->GetSize().height);
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}
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||
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void e2d::EApp::enterScene(EScene * scene, bool saveCurrentScene /* = true */)
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{
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enterScene(scene, nullptr, saveCurrentScene);
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}
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||
|
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void e2d::EApp::enterScene(EScene * scene, ETransition * transition, bool saveCurrentScene /* = true */)
|
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{
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scene->retain();
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// 保存下一场景的指针
|
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get()->m_pNextScene = scene;
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||
// 切换场景时，是否保存当前场景
|
||
if (get()->m_pCurrentScene)
|
||
{
|
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get()->m_pCurrentScene->m_bWillSave = saveCurrentScene;
|
||
}
|
||
// 设置切换场景动画
|
||
if (transition)
|
||
{
|
||
get()->m_bTransitional = true;
|
||
transition->_setTarget(
|
||
get()->m_pCurrentScene,
|
||
get()->m_pNextScene,
|
||
get()->m_bTransitional
|
||
);
|
||
}
|
||
else
|
||
{
|
||
get()->m_bTransitional = false;
|
||
}
|
||
}
|
||
|
||
void e2d::EApp::backScene(ETransition * transition /* = nullptr */)
|
||
{
|
||
// 栈为空时，调用返回场景函数失败
|
||
WARN_IF(s_SceneStack.size() == 0, "Scene stack now is empty!");
|
||
if (s_SceneStack.size() == 0) return;
|
||
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||
// 从栈顶取出场景指针，作为下一场景
|
||
get()->m_pNextScene = s_SceneStack.top();
|
||
s_SceneStack.pop();
|
||
|
||
// 返回上一场景时，不保存当前场景
|
||
if (get()->m_pCurrentScene)
|
||
{
|
||
get()->m_pCurrentScene->m_bWillSave = false;
|
||
}
|
||
|
||
// 设置切换场景动画
|
||
if (transition)
|
||
{
|
||
get()->m_bTransitional = true;
|
||
transition->_setTarget(
|
||
get()->m_pCurrentScene,
|
||
get()->m_pNextScene,
|
||
get()->m_bTransitional
|
||
);
|
||
}
|
||
else
|
||
{
|
||
// 把这个变量赋为 false，场景将在下一帧画面
|
||
// 进行切换
|
||
get()->m_bTransitional = false;
|
||
}
|
||
}
|
||
|
||
void e2d::EApp::clearScene()
|
||
{
|
||
// 清空场景栈
|
||
while (s_SceneStack.size())
|
||
{
|
||
auto temp = s_SceneStack.top();
|
||
SafeRelease(&temp);
|
||
s_SceneStack.pop();
|
||
}
|
||
}
|
||
|
||
e2d::EScene * e2d::EApp::getCurrentScene()
|
||
{
|
||
return get()->m_pCurrentScene;
|
||
}
|
||
|
||
void e2d::EApp::setAppName(const EString &appname)
|
||
{
|
||
get()->m_sAppName = appname;
|
||
}
|
||
|
||
e2d::EString e2d::EApp::getAppName()
|
||
{
|
||
if (get()->m_sAppName.empty())
|
||
get()->m_sAppName = get()->m_sTitle;
|
||
return get()->m_sAppName;
|
||
}
|
||
|
||
void e2d::EApp::setBkColor(UINT32 color)
|
||
{
|
||
get()->m_ClearColor = color;
|
||
}
|
||
|
||
void e2d::EApp::setKeyboardLayoutEnable(bool value)
|
||
{
|
||
static HIMC hImc = NULL;
|
||
|
||
if (value)
|
||
{
|
||
if (hImc != NULL)
|
||
{
|
||
ImmAssociateContext(GetHWnd(), hImc);
|
||
hImc = NULL;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (hImc == NULL)
|
||
{
|
||
hImc = ImmAssociateContext(GetHWnd(), NULL);
|
||
}
|
||
}
|
||
}
|
||
|
||
HWND e2d::EApp::getHWnd()
|
||
{
|
||
return GetHWnd();
|
||
}
|
||
|
||
LONGLONG e2d::EApp::getTotalDurationFromStart()
|
||
{
|
||
return GetInterval(s_tStart);
|
||
}
|
||
|
||
void e2d::EApp::hideWindow()
|
||
{
|
||
ShowWindow(GetHWnd(), SW_HIDE);
|
||
}
|
||
|
||
void e2d::EApp::showWindow()
|
||
{
|
||
ShowWindow(GetHWnd(), SW_SHOWNORMAL);
|
||
}
|
||
|
||
void e2d::EApp::quit()
|
||
{
|
||
// 这个变量将控制游戏是否结束
|
||
get()->m_bEnd = true;
|
||
}
|
||
|
||
void e2d::EApp::end()
|
||
{
|
||
EApp::quit();
|
||
}
|
||
|
||
void e2d::EApp::_enterNextScene()
|
||
{
|
||
if (m_pNextScene == nullptr)
|
||
return;
|
||
|
||
// 执行当前场景的 onCloseWindow 函数
|
||
if (m_pCurrentScene)
|
||
{
|
||
m_pCurrentScene->onExit();
|
||
|
||
if (m_pCurrentScene->m_bWillSave)
|
||
{
|
||
// 若要保存当前场景，把它放入栈中
|
||
s_SceneStack.push(m_pCurrentScene);
|
||
}
|
||
else
|
||
{
|
||
SafeRelease(&m_pCurrentScene);
|
||
}
|
||
}
|
||
|
||
// 执行下一场景的 onEnter 函数
|
||
m_pNextScene->onEnter();
|
||
|
||
m_pCurrentScene = m_pNextScene; // 切换场景
|
||
m_pNextScene = nullptr; // 下一场景置空
|
||
}
|
||
|
||
LRESULT e2d::EApp::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
|
||
{
|
||
// 处理窗口消息
|
||
LRESULT result = 0;
|
||
e2d::EApp *pEApp = EApp::get();
|
||
|
||
if (pEApp)
|
||
{
|
||
switch (message)
|
||
{
|
||
// 处理鼠标消息
|
||
case WM_LBUTTONUP:
|
||
case WM_LBUTTONDOWN:
|
||
case WM_LBUTTONDBLCLK:
|
||
case WM_MBUTTONUP:
|
||
case WM_MBUTTONDOWN:
|
||
case WM_MBUTTONDBLCLK:
|
||
case WM_RBUTTONUP:
|
||
case WM_RBUTTONDOWN:
|
||
case WM_RBUTTONDBLCLK:
|
||
case WM_MOUSEMOVE:
|
||
case WM_MOUSEWHEEL:
|
||
{
|
||
// 执行场景切换时屏蔽按键和鼠标消息
|
||
if (!pEApp->m_bTransitional && !pEApp->m_pNextScene)
|
||
{
|
||
EMsgManager::MouseProc(message, wParam, lParam);
|
||
}
|
||
}
|
||
result = 0;
|
||
break;
|
||
|
||
// 处理按键消息
|
||
case WM_KEYDOWN:
|
||
case WM_KEYUP:
|
||
{
|
||
// 执行场景切换时屏蔽按键和鼠标消息
|
||
if (!pEApp->m_bTransitional && !pEApp->m_pNextScene)
|
||
{
|
||
EMsgManager::KeyboardProc(message, wParam, lParam);
|
||
}
|
||
}
|
||
result = 0;
|
||
break;
|
||
|
||
// 处理窗口大小变化消息
|
||
case WM_SIZE:
|
||
{
|
||
UINT width = LOWORD(lParam);
|
||
UINT height = HIWORD(lParam);
|
||
// 如果程序接收到一个 WM_SIZE 消息，这个方法将调整渲染
|
||
// 目标适当。它可能会调用失败，但是这里可以忽略有可能的
|
||
// 错误，因为这个错误将在下一次调用 EndDraw 时产生
|
||
GetRenderTarget()->Resize(D2D1::SizeU(width, height));
|
||
}
|
||
break;
|
||
|
||
// 处理分辨率变化消息
|
||
case WM_DISPLAYCHANGE:
|
||
{
|
||
// 重绘客户区
|
||
InvalidateRect(hWnd, NULL, FALSE);
|
||
}
|
||
result = 0;
|
||
break;
|
||
|
||
// 重绘窗口
|
||
case WM_PAINT:
|
||
{
|
||
pEApp->_onRender();
|
||
ValidateRect(hWnd, NULL);
|
||
}
|
||
result = 0;
|
||
break;
|
||
|
||
// 窗口激活消息
|
||
case WM_ACTIVATE:
|
||
{
|
||
if (LOWORD(wParam) == WA_INACTIVE)
|
||
{
|
||
if (pEApp->getCurrentScene() &&
|
||
pEApp->getCurrentScene()->onInactive() &&
|
||
pEApp->onInactive())
|
||
{
|
||
pEApp->m_bPaused = true;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (pEApp->getCurrentScene() &&
|
||
pEApp->getCurrentScene()->onActivate() &&
|
||
pEApp->onActivate())
|
||
{
|
||
pEApp->m_bPaused = false;
|
||
}
|
||
}
|
||
}
|
||
result = 1;
|
||
break;
|
||
|
||
// 窗口关闭消息
|
||
case WM_CLOSE:
|
||
{
|
||
if (!pEApp->getCurrentScene())
|
||
{
|
||
if (pEApp->onCloseWindow())
|
||
{
|
||
DestroyWindow(hWnd);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (pEApp->getCurrentScene()->onCloseWindow() &&
|
||
pEApp->onCloseWindow())
|
||
{
|
||
DestroyWindow(hWnd);
|
||
}
|
||
}
|
||
}
|
||
result = 1;
|
||
break;
|
||
|
||
// 窗口被销毁
|
||
case WM_DESTROY:
|
||
{
|
||
// 退出程序
|
||
pEApp->quit();
|
||
// 发送退出消息
|
||
PostQuitMessage(0);
|
||
}
|
||
result = 1;
|
||
break;
|
||
|
||
default:
|
||
result = DefWindowProc(hWnd, message, wParam, lParam);
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|