bool BoidsSimulation::OnEvent( MSG* msg )
{
switch (msg->message)
{
case WM_MOUSEWHEEL:
{
auto delta = GET_WHEEL_DELTA_WPARAM( msg->wParam );
m_camera.ZoomRadius( -0.1f*delta );
}
case WM_POINTERDOWN:
case WM_POINTERUPDATE:
case WM_POINTERUP:
{
auto pointerId = GET_POINTERID_WPARAM( msg->wParam );
POINTER_INFO pointerInfo;
if (GetPointerInfo( pointerId, &pointerInfo )) {
if (msg->message == WM_POINTERDOWN) {
// Compute pointer position in render units
POINT p = pointerInfo.ptPixelLocation;
ScreenToClient( Core::g_hwnd, &p );
RECT clientRect;
GetClientRect( Core::g_hwnd, &clientRect );
p.x = p.x * Core::g_config.swapChainDesc.Width / (clientRect.right - clientRect.left);
p.y = p.y * Core::g_config.swapChainDesc.Height / (clientRect.bottom - clientRect.top);
// Camera manipulation
m_camera.AddPointer( pointerId );
}
}
// Otherwise send it to the camera controls
m_camera.ProcessPointerFrames( pointerId, &pointerInfo );
if (msg->message == WM_POINTERUP) m_camera.RemovePointer( pointerId );
}
}
return false;
}
// Event handler
LRESULT CALLBACK MyWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
gpRenderer->HandleEvent(message, wParam, lParam);
switch (message)
{
case WM_CLOSE:
gShouldClose = true;
return 0;
case WM_SIZE: {
UINT ww = LOWORD(lParam);
UINT wh = HIWORD(lParam);
// Ignore resizing to minimized
if (ww == 0 || wh == 0) return 0;
gWindowWidth = (int)ww;
gWindowHeight = (int)wh;
gRenderWidth = (UINT)(double(gWindowWidth) * gRenderScale);
gRenderHeight = (UINT)(double(gWindowHeight) * gRenderScale);
// Update camera projection
float aspect = (float)gRenderWidth / (float)gRenderHeight;
gCamera.Projection(DirectX::XM_PIDIV2 * 0.8f * 3 / 2, aspect);
ResizeApp(gWindowWidth, gWindowHeight);
return 0;
}
case WM_MOUSEWHEEL: {
auto delta = GET_WHEEL_DELTA_WPARAM(wParam);
gCamera.ZoomRadius(-0.07f * delta);
return 0;
}
case WM_POINTERDOWN:
case WM_POINTERUPDATE:
case WM_POINTERUP: {
auto pointerId = GET_POINTERID_WPARAM(wParam);
POINTER_INFO pointerInfo;
if (GetPointerInfo(pointerId, &pointerInfo)) {
if (message == WM_POINTERDOWN) {
// Compute pointer position in render units
POINT p = pointerInfo.ptPixelLocation;
ScreenToClient(hWnd, &p);
RECT clientRect;
GetClientRect(hWnd, &clientRect);
p.x = p.x * gRenderWidth / (clientRect.right - clientRect.left);
p.y = p.y * gRenderHeight / (clientRect.bottom - clientRect.top);
gCamera.AddPointer(pointerId);
}
// Otherwise send it to the camera controls
gCamera.ProcessPointerFrames(pointerId, &pointerInfo);
if (message == WM_POINTERUP) gCamera.RemovePointer(pointerId);
}
return 0;
}
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
}
LRESULT CALLBACK WindowProcSubclass(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
{
CommonAPI* api = CommonAPI::getInstance();
POINTER_INFO pointerInfo = {};
HRESULT hr;
switch (message)
{
case WM_POINTERDOWN:
// Get frame id from current message
if (GetPointerInfo(GET_POINTERID_WPARAM(wParam), &pointerInfo))
{
asIScriptFunction* sf = api->module->GetFunctionByDecl("int OnPointerDown(int x, int y)");
if(sf == 0)
FILE_LOG(logERROR) << "The script must have the function 'OnPointerDown'.";
asIScriptContext* ctx = api->engine->CreateContext();
ctx->Prepare(sf);
ctx->SetArgDWord(0, pointerInfo.ptPixelLocation.x);
ctx->SetArgDWord(1, pointerInfo.ptPixelLocation.y);
ctx->Execute();
int meow = ctx->GetReturnQWord();
if(meow >= 0 && sf != 0)
{
// Background was hit
hr = AddPointerInteractionContext(api->interactionContexts[meow], GET_POINTERID_WPARAM(wParam));
if (SUCCEEDED(hr))
{
api->pointers[meow].push_back(GET_POINTERID_WPARAM(wParam));
api->ProcessPointerFrames(wParam, pointerInfo, meow);
}
}
}
break;
case WM_POINTERUPDATE:
// Get frame id from current message
if (GetPointerInfo(GET_POINTERID_WPARAM(wParam), &pointerInfo))
{
// Background
if (api->IsPointerInteraction(GET_POINTERID_WPARAM(wParam)))
{
api->ProcessPointerFrames(wParam, pointerInfo, 0);
}
}
break;
case WM_POINTERUP:
// Get frame id from current message
if (GetPointerInfo(GET_POINTERID_WPARAM(wParam), &pointerInfo))
{
// Background
int t = api->IsPointerInteraction(GET_POINTERID_WPARAM(wParam));
if (t >= 0)
{
api->ProcessPointerFrames(wParam, pointerInfo, t);
hr = RemovePointerInteractionContext(api->interactionContexts[t],
GET_POINTERID_WPARAM(wParam));
asIScriptFunction* sf = api->module->GetFunctionByDecl("void OnPointerUp(int)");
if(sf == 0)
FILE_LOG(logERROR) << "The script must have the function 'OnPointerUp'.";
asIScriptContext* ctx = api->engine->CreateContext();
ctx->Prepare(sf);
ctx->SetArgDWord(0, t);
ctx->Execute();
if (SUCCEEDED(hr))
{
if (!api->pointers[t].empty())
api->pointers[t].remove(GET_POINTERID_WPARAM(wParam));
}
}
}
break;
default:
return DefSubclassProc(hWnd, message, wParam, lParam);
}
return DefSubclassProc(hWnd, message, wParam, lParam);
}