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NFRev1/NothinFancy/src/Application.cpp
Grayson Riffe (Laptop) 1f6bb4630c Minor changes
2021-08-24 11:09:07 -05:00

302 lines
8.2 KiB
C++

#include "Application.h"
#include <thread>
#include "GL\glew.h"
#include "GL\wglew.h"
#include "Utility.h"
namespace nf {
DEBUGINIT;
Application::Application(Config& config) :
m_currentConfig(config),
m_wndPlacement{ sizeof(m_wndPlacement) },
m_running(false)
{
Log("Creating NF application");
Log("Width: " + std::to_string(m_currentConfig.width) + ", Height: " + std::to_string(m_currentConfig.height) + ", Fullscreen: " + std::to_string(m_currentConfig.fullscreen) + ", Title: " + m_currentConfig.title);
m_hInst = GetModuleHandle(NULL);
registerWindowClass();
RECT windowSize = getWindowRect();
int x = 0;
int y = 0;
calculateNewWindowPos(x, y);
m_window = CreateWindowEx(NULL, m_wclassName, toWide(m_currentConfig.title), WS_OVERLAPPED | WS_SYSMENU | WS_MINIMIZEBOX, x, y, windowSize.right, windowSize.bottom, NULL, NULL, m_hInst, NULL);
m_defaultWindowStyle = GetWindowLong(m_window, GWL_STYLE);
SetProp(m_window, L"App", this);
if (m_currentConfig.fullscreen) toggleFullscreen();
}
void Application::setWindowIcon(HANDLE hIcon) {
SendMessage(m_window, WM_SETICON, ICON_SMALL, (LPARAM)hIcon);
SendMessage(m_window, WM_SETICON, ICON_SMALL, (LPARAM)hIcon);
}
//TODO: Test these top-level features
void Application::setWindowCursor(HCURSOR hCursor) {
SetClassLongPtr(m_window, GCLP_HCURSOR, (LONG_PTR)hCursor);
}
void Application::addState(IGamestate* state, const char* stateName) {
if (m_states.find(stateName) == m_states.end()) {
m_states[stateName] = state;
}
else {
Error("State \"" + (std::string)stateName + (std::string)"\" already exists!");
}
}
void Application::addDefaultState(const char* stateName) {
if (!m_defaultStateAdded) {
if (m_states.find(stateName) != m_states.end()) {
m_DefaultState = m_states[stateName];
m_defaultStateAdded = true;
}
else {
Error("State \"" + (std::string)stateName + (std::string)"\" doesn't exist!");
}
}
else {
Error("More than one default state defined!");
}
}
void Application::run() {
showWindow(true);
m_running = true;
MSG msg = { };
std::thread mainThread(&Application::runMainGameThread, this);
while (m_running) {
while (PeekMessage(&msg, NULL, NULL, NULL, PM_REMOVE)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
if (msg.message == WM_QUIT) {
m_running = false;
break;
}
}
std::this_thread::sleep_for(std::chrono::milliseconds(5));
}
mainThread.join();
}
void Application::showWindow(bool show) {
if (show)
ShowWindow(m_window, SW_SHOW);
else
ShowWindow(m_window, SW_HIDE);
}
void Application::changeState(const char* stateName) {
if (m_states.find(stateName) != m_states.end()) {
m_currentState->onExit();
m_currentState = m_states[stateName];
m_currentState->onEnter(this);
}
else {
Error("State \"" + (std::string)stateName + (std::string)"\" doesn't exist!");
}
}
void Application::changeConfig(const Config& in) {
SetWindowText(m_window, toWide(in.title));
if (in.fullscreen != m_currentConfig.fullscreen) {
m_currentConfig = in;
toggleFullscreen();
}
if (m_currentConfig.fullscreen)
return;
m_currentConfig = in;
int x = 0, y = 0;
calculateNewWindowPos(x, y);
SetWindowPos(m_window, HWND_TOP, x, y, in.width, in.height, SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
}
const HWND& Application::getWindow() {
return m_window;
}
const Config& Application::getConfig() const {
return m_currentConfig;
}
//TODO: Test this
int Application::getFPS() const {
return m_FPS;
}
bool Application::isInput(unsigned int code) {
if (code < 164) {
return m_input[code];
}
else {
return false;
}
}
void Application::startIntroState() {
m_sIntro = new IntroGamestate;
m_sIntro->onEnter(this);
m_currentState = m_sIntro;
}
void Application::runMainGameThread() {
m_renderer = new Renderer(this);
startIntroState();
std::chrono::steady_clock::time_point start_time = std::chrono::steady_clock::now();
const std::chrono::duration<double> wait_time = std::chrono::nanoseconds(1000000000 / 60);
auto next_time = start_time + wait_time;
while (m_running) {
start_time = std::chrono::steady_clock::now();
m_currentState->update();
m_currentState->render();
m_renderer->doFrame();
m_frames++;
m_fpsClock2 = std::chrono::steady_clock::now();
m_fpsDuration = m_fpsClock2 - m_fpsClock1;
if (m_fpsDuration.count() >= 1.0) {
m_FPS = m_frames;
m_frames = 0;
Log("FPS: " + std::to_string(m_FPS));
m_fpsClock1 = std::chrono::steady_clock::now();
//TODO: Rework calculating FPS
}
std::this_thread::sleep_until(next_time);
m_deltaTime = (double)(std::chrono::steady_clock::now() - start_time).count();
next_time += wait_time;
}
m_currentState->onExit();
delete m_renderer;
}
void Application::registerWindowClass() {
if (!FindWindow(L"NFClass", NULL)) {
m_wclassName = L"NFClass";
WNDCLASS wclass = { };
wclass.lpszClassName = m_wclassName;
wclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wclass.hIcon = NULL;
wclass.hInstance = m_hInst;
wclass.lpfnWndProc = Application::WindowProc;
RegisterClass(&wclass);
}
else {
Error("Cannot run two NF applications at once!");
}
}
//TODO: Test fullscreen graphcis
void Application::toggleFullscreen() {
DWORD wndStyle = GetWindowLong(m_window, GWL_STYLE);
if (wndStyle & WS_OVERLAPPEDWINDOW) {
GetWindowPlacement(m_window, &m_wndPlacement);
MONITORINFO mi = { sizeof(mi) };
GetMonitorInfo(MonitorFromWindow(m_window, MONITOR_DEFAULTTOPRIMARY), &mi);
SetWindowLong(m_window, GWL_STYLE, wndStyle & ~WS_OVERLAPPEDWINDOW);
SetWindowPos(m_window, HWND_TOP, mi.rcMonitor.left, mi.rcMonitor.top, mi.rcMonitor.right - mi.rcMonitor.left, mi.rcMonitor.bottom - mi.rcMonitor.top, SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
}
else {
SetWindowLong(m_window, GWL_STYLE, m_defaultWindowStyle);
SetWindowPlacement(m_window, &m_wndPlacement);
SetWindowPos(m_window, NULL, 0, 0, m_currentConfig.width, m_currentConfig.height, SWP_NOMOVE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
}
}
RECT Application::getWindowRect() const {
int w = m_currentConfig.width;
int h = m_currentConfig.height;
RECT temp = { };
temp.right = w;
temp.bottom = h;
AdjustWindowRect(&temp, WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX, false);
temp.right -= temp.left;
temp.bottom -= temp.top;
return temp;
}
void Application::calculateNewWindowPos(int& x, int& y) {
MONITORINFO mi = { sizeof(mi) };
GetMonitorInfo(MonitorFromWindow(m_window, MONITOR_DEFAULTTOPRIMARY), &mi);
int monX = (mi.rcWork.right - mi.rcWork.left) / 2;
int monY = (mi.rcWork.bottom - mi.rcWork.top) / 2;
x = monX - (m_currentConfig.width / 2);
y = monY - (m_currentConfig.height / 2);
}
LRESULT CALLBACK Application::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
Application* app = (Application*)GetProp(hWnd, L"App");
switch (uMsg) {
case WM_CREATE: {
return 0;
}
case WM_SYSKEYDOWN: {
if (GetKeyState(VK_RETURN) & 0x8000) {
if (!(lParam & (1 << 30))) {
app->m_currentConfig.fullscreen = !app->m_currentConfig.fullscreen;
app->toggleFullscreen();
}
return 0;
}
break;
}
case WM_MENUCHAR: {
return MNC_CLOSE << 16;
}
//TODO: mouse position input
case WM_LBUTTONDOWN: {
app->m_input[1] = true;
return 0;
}
case WM_LBUTTONUP: {
app->m_input[1] = false;
return 0;
}
case WM_RBUTTONDOWN: {
app->m_input[2] = true;
return 0;
}
case WM_RBUTTONUP: {
app->m_input[2] = false;
return 0;
}
case WM_MBUTTONDOWN: {
app->m_input[4] = true;
return 0;
}
case WM_MBUTTONUP: {
app->m_input[4] = false;
return 0;
}
case WM_KEYDOWN: {
if (wParam < 164 && !(lParam & (1 << 30))) {
app->m_input[wParam] = true;
}
break;
}
case WM_KEYUP: {
if (wParam < 164) {
app->m_input[wParam] = false;
}
break;
}
case WM_CLOSE: {
DestroyWindow(hWnd);
return 0;
}
case WM_DESTROY: {
PostQuitMessage(0);
return 0;
}
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
Application::~Application() {
Log("Exiting NF application");
for (std::pair<const char*, IGamestate*> state : m_states) {
IGamestate* curr = state.second;
delete curr;
}
}
}