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rattatwinko
2026-05-04 21:23:59 +02:00
parent 72ed88f973
commit c865a23380
10 changed files with 493 additions and 0 deletions
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bounce_cpp.slnx
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<Solution>
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<Project Path="bounce_cpp/bounce_cpp.vcxproj" Id="61c6f079-9b1c-4d66-b9c7-4646f87181a6" />
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bounce_cpp/Resource.aps
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bounce_cpp/Resource.rc
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bounce_cpp/bounce_cpp.vcxproj
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<Image Include="..\..\..\..\Downloads\hyrax.ico" />
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bounce_cpp/bounce_cpp.vcxproj.filters
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bounce_cpp/bounce_cpp.vcxproj.user
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bounce_cpp/main.cpp
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#include <windows.h>
#include <gdiplus.h>
#include <cstring>
#include <math.h>
#include <objidl.h>
#pragma comment(lib, "gdiplus.lib")
using namespace Gdiplus;
Image* LoadImageFromResource(int resId) {
HRSRC hRes = FindResource(NULL, MAKEINTRESOURCE(resId), RT_RCDATA);
if (!hRes) return NULL;
DWORD size = SizeofResource(NULL, hRes);
if (size == 0) return NULL;
HGLOBAL hData = LoadResource(NULL, hRes);
if (!hData) return NULL;
void* pData = LockResource(hData);
if (!pData) return NULL;
HGLOBAL hBuffer = GlobalAlloc(GMEM_MOVEABLE, size);
if (!hBuffer) return NULL;
void* pBuffer = GlobalLock(hBuffer);
if (!pBuffer) {
GlobalFree(hBuffer);
return NULL;
}
memcpy(pBuffer, pData, size);
GlobalUnlock(hBuffer);
IStream* stream = NULL;
HRESULT hr = CreateStreamOnHGlobal(hBuffer, TRUE, &stream);
if (FAILED(hr) || !stream) {
GlobalFree(hBuffer);
return NULL;
}
Image* img = Image::FromStream(stream);
stream->Release();
if (!img || img->GetLastStatus() != Ok) {
if (img) delete img;
return NULL;
}
return img;
}
double x = 200.0, y = 50.0;
double vx = 0.0, vy = 0.0;
double gravity = 1200.0;
double restitution = 0.6;
double air_drag = 0.999;
double ground_friction = 0.8;
int win_w = 640;
int win_h = 480;
int dragging = 0;
int offset_x = 0, offset_y = 0;
POINT last_mouse;
double last_mouse_time = 0.0;
double last_time = 0.0;
LARGE_INTEGER freq;
ULONG_PTR gdiplusToken;
Image* img = NULL;
double now_time() {
LARGE_INTEGER t;
QueryPerformanceCounter(&t);
return (double)t.QuadPart / (double)freq.QuadPart;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
switch (msg) {
case WM_CREATE: {
QueryPerformanceFrequency(&freq);
GdiplusStartupInput gdiplusStartupInput;
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
img = LoadImageFromResource(111);
if (!img || img->GetLastStatus() != Ok) {
// MessageBoxA(NULL, "Image failed to load", "Error", MB_OK);
}
else {
win_w = 640;
win_h = 480;
SetWindowPos(hwnd, NULL, 0, 0, win_w, win_h, SWP_NOMOVE);
}
SetTimer(hwnd, 1, 10, NULL);
last_time = now_time();
last_mouse_time = last_time;
break;
}
case WM_LBUTTONDOWN: {
dragging = 1;
offset_x = LOWORD(lParam);
offset_y = HIWORD(lParam);
vx = vy = 0;
GetCursorPos(&last_mouse);
last_mouse_time = now_time();
SetCapture(hwnd);
break;
}
case WM_SETCURSOR:
if (dragging)
SetCursor(LoadCursor(NULL, IDC_SIZEALL));
else
SetCursor(LoadCursor(NULL, IDC_HAND));
return TRUE;
case WM_MOUSEMOVE:
if (dragging) {
POINT p;
GetCursorPos(&p);
double now = now_time();
double dt = now - last_mouse_time;
if (dt > 0) {
vx = (p.x - last_mouse.x) / dt;
vy = (p.y - last_mouse.y) / dt;
}
last_mouse = p;
last_mouse_time = now;
x = p.x - offset_x;
y = p.y - offset_y;
SetWindowPos(hwnd, NULL, (int)x, (int)y, 0, 0,
SWP_NOSIZE | SWP_NOZORDER);
}
break;
case WM_LBUTTONUP:
dragging = 0;
ReleaseCapture();
break;
case WM_TIMER: {
double now = now_time();
double dt = now - last_time;
last_time = now;
int screen_w = GetSystemMetrics(SM_CXSCREEN);
int screen_h = GetSystemMetrics(SM_CYSCREEN);
if (!dragging) {
vy += gravity * dt;
vx *= air_drag;
vy *= air_drag;
x += vx * dt;
y += vy * dt;
if (x <= 0) {
x = 0;
vx = -vx * restitution;
}
else if (x >= screen_w - win_w) {
x = screen_w - win_w;
vx = -vx * restitution;
}
if (y >= screen_h - win_h) {
y = screen_h - win_h;
vy = -vy * restitution;
vx *= ground_friction;
if (fabs(vy) < 5)
vy = 0;
}
if (y <= 0) {
y = 0;
vy = -vy * restitution;
}
SetWindowPos(hwnd, NULL, (int)x, (int)y, 0, 0,
SWP_NOSIZE | SWP_NOZORDER);
}
break;
}
case WM_PAINT: {
PAINTSTRUCT ps;
HDC hdc = BeginPaint(hwnd, &ps);
Graphics g(hdc);
if (img)
g.DrawImage(img, 0, 0, win_w, win_h);
EndPaint(hwnd, &ps);
break;
}
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
DestroyWindow(hwnd);
break;
case WM_DESTROY:
if (img) delete img;
GdiplusShutdown(gdiplusToken);
PostQuitMessage(0);
break;
}
return DefWindowProcW(hwnd, msg, wParam, lParam);
}
static int WINAPI wWinMain(
HINSTANCE hInstance,
HINSTANCE,
PWSTR,
int nCmdShow
) {
if (IsDebuggerPresent())
return 0;
WNDCLASSW wc = { 0 };
wc.lpfnWndProc = WndProc;
wc.hInstance = hInstance;
wc.lpszClassName = L"Hyrax";
wc.hCursor = LoadCursor(NULL, IDC_HAND);
RegisterClassW(&wc);
HWND hwnd = CreateWindowExW(
WS_EX_TOPMOST,
L"Hyrax",
L"",
WS_POPUP,
(int)x, (int)y,
win_w, win_h,
NULL, NULL, hInstance, NULL
);
ShowWindow(hwnd, nCmdShow);
MSG msg;
while (GetMessageW(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
return 0;
}
bounce_cpp/resource.h
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//{{NO_DEPENDENCIES}}
// Microsoft Visual C++ generated include file.
// Used by Resource.rc
//
#define IDR_RCDATA1 111
#define IDI_ICON1 114
// Next default values for new objects
//
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE 115
#define _APS_NEXT_COMMAND_VALUE 40001
#define _APS_NEXT_CONTROL_VALUE 1001
#define _APS_NEXT_SYMED_VALUE 101
#endif
#endif