implement PCMouseKeyboard::setCursorGrab, press TAB to activate

input/InputProducer.cpp

@@ -3,11 +3,11 @@
 namespace cdc {
 
 void InputProducer::method_0() { /*TODO*/ }
-void InputProducer::method_4() { /*TODO*/ }
+void InputProducer::setCursorGrab(bool active) { cursorGrab = active; }
 void InputProducer::method_8() { /*TODO*/ }
 void InputProducer::method_C() { /*TODO*/ }
 void InputProducer::method_10() { /*TODO*/ }
-void InputProducer::method_14() { /*TODO*/ }
+void InputProducer::update() { /*TODO*/ }
 void InputProducer::method_18() { /*TODO*/ }
 void InputProducer::method_1C() { /*TODO*/ }
 void InputProducer::method_20() { /*TODO*/ }

input/InputProducer.h

@@ -3,10 +3,10 @@
 
 namespace cdc {
 
-struct InputProducerSub4 {
-	uint8_t gap0[85];
-	float float58;
-	float float5C;
+struct InputState {
+	uint8_t keys[85];
+	float deltaX; // 58
+	float deltaY; // 5C
 	float float60;
 };
 
@@ -22,22 +22,23 @@ struct InputProducerSub6C {
 };
 
 class InputProducer {
-protected:
-	// InputProducerSub4 sub4;
+// protected:
+public:
+	InputState state;
 	// uint8_t gap68[4];
 	// InputProducerSub6C sub6C;
 	// float float7C[2];
 	// uint8_t byte84;
 	// uint8_t byte85;
-	// uint8_t byte86;
+	bool cursorGrab; // 86
 	// uint32_t dword88;
 public:
 	virtual void method_0();
-	virtual void method_4();
+	virtual void setCursorGrab(bool active);
 	virtual void method_8();
 	virtual void method_C();
 	virtual void method_10();
-	virtual void method_14();
+	virtual void update();
 	virtual void method_18();
 	virtual void method_1C();
 	virtual void method_20();

input/PCMouseKeyboard.cpp

@@ -1,10 +1,17 @@
+#define NOMINMAX
 #include "PCMouseKeyboard.h"
 #include <cstdio>
+#include <algorithm>
 
 #ifdef _WIN32
 #include <hidusage.h>
 #endif
 
+extern HWND hwnd2;
+
+float g_mouseXSensitivity2 = 0.00135f;
+float g_mouseYSensitivity2 = 0.00135f;
+
 namespace cdc {
 
 PCMouseKeyboard::PCMouseKeyboard() {
@@ -32,9 +39,54 @@ void PCMouseKeyboard::processWndProc(UINT uMsg, WPARAM wParam, LPARAM lParam) {
 	}
 
 	// printf("WM_INPUT with type %lu\n", input.header.dwType);
+
+	if (input.header.dwType == RIM_TYPEMOUSE) {
+		deltaX += input.data.mouse.lLastX;
+		deltaY += input.data.mouse.lLastY;
+	}
 }
 #endif
 
+void PCMouseKeyboard::setCursorPos(float x, float y) {
+#ifdef _WIN32
+	if (cursorGrab) {
+		RECT rect;
+		GetClientRect(hwnd2, &rect);
+		POINT point;
+		point.x = rect.right * std::clamp(x, 0.0f, 1.0f);
+		point.y = rect.bottom * std::clamp(y, 0.0f, 1.0f);
+		ClientToScreen(hwnd2, &point);
+		SetCursorPos(point.x, point.y);
+	}
+#endif
+}
+
+void PCMouseKeyboard::setupClip() {
+#ifdef _WIN32
+	if (!cursorGrab) {
+		ClipCursor(nullptr);
+		return;
+	}
+
+	if (true /* !fullscreen */) {
+		GetClientRect(hwnd2, &m_rect);
+		ClientToScreen(hwnd2, reinterpret_cast<POINT*>(&m_rect.left));
+		ClientToScreen(hwnd2, reinterpret_cast<POINT*>(&m_rect.right));
+		ClipCursor(&m_rect);
+	}
+#endif
+}
+
+void PCMouseKeyboard::centerCursor(bool unknown) {
+	// TODO
+	if (cursorGrab) {
+		if (unknown) {
+			setCursorPos(0.5f, 0.5f);
+		}
+	}
+	setupClip();
+}
+
 // signature is bool create() in original binary
 PCMouseKeyboard *PCMouseKeyboard::create(HWND hwnd) {
 #ifdef _WIN32
@@ -100,8 +152,25 @@ void PCMouseKeyboard::assignDefaultKeybinds(Keybind *keybinds) {
 #endif
 }
 
-void PCMouseKeyboard::method_4() { /*TODO*/ }
-void PCMouseKeyboard::method_14() { /*TODO*/ }
+void PCMouseKeyboard::setCursorGrab(bool active) {
+	cursorGrab = active;
+	centerCursor(false); // so, don't actually center
+}
+
+void PCMouseKeyboard::update() {
+	state = InputState();
+
+	// TODO
+
+	state.deltaX = deltaX *	g_mouseXSensitivity2;
+	state.deltaY = deltaY * g_mouseYSensitivity2;
+
+	// TODO
+
+	deltaX = 0;
+	deltaY = 0;
+}
+
 void PCMouseKeyboard::method_18() { /*TODO*/ }
 
 }

input/PCMouseKeyboard.h

@@ -14,12 +14,15 @@ public:
 #ifdef _WIN32
 	void processWndProc(UINT uMsg, WPARAM wParam, LPARAM lParam);
 #endif
+	void setCursorPos(float x, float y);
+	void setupClip();
+	void centerCursor(bool);
 
 	static PCMouseKeyboard *create(HWND hwnd);
 	static void assignDefaultKeybinds(Keybind *keybinds);
 
-	void method_4() override;
-	void method_14() override;
+	void setCursorGrab(bool active) override;
+	void update() override;
 	void method_18() override;
 
 	// uint8_t gap8C[4];
@@ -28,10 +31,10 @@ public:
 	// uint8_t gap92[2];
 	// uint32_t dword94;
 	// float float98;
-	// uint8_t gap9C[16];
+	RECT m_rect; // 9C
 	// uint32_t dwordAC;
-	// uint32_t dwordB0;
-	// uint32_t dwordB4;
+	int32_t deltaX = 0;
+	int32_t deltaY = 0;
 	// uint32_t dwordB8;
 	// uint32_t dwordBC;
 	// char vkeysC0[257];

spinnycube.cpp

@@ -658,6 +658,8 @@ int spinnyCube(HWND window,
 	uint32_t selectedCapture = 0;
 #endif
 
+	bool mouseLook = false;
+
 	while (true)
 	{
 #ifdef WIN32
@@ -691,12 +693,28 @@ int spinnyCube(HWND window,
 		}
 #endif
 
+		mouseKeyboard->update();
+
 #if ENABLE_IMGUI
 		ImGui_ImplDX11_NewFrame();
 		ImGui_ImplWin32_NewFrame(); // this will reset our pretty cursor
 		ImGui::NewFrame();
+
+		if (ImGui::IsKeyPressed(ImGuiKey_Tab)) {
+			mouseLook = !mouseLook;
+			mouseKeyboard->setCursorGrab(mouseLook);
+		}
+
 #ifdef _WIN32
-		SetCursor((HCURSOR)yellowCursor); // ahh, much better
+		if (mouseLook) {
+			// ImGui::SetMouseCursor(ImGuiMouseCursor_None);
+			SetCursor((HCURSOR)0);
+			io.ConfigFlags |= ImGuiConfigFlags_NoMouse;
+		} else {
+			// ImGui::SetMouseCursor(ImGuiMouseCursor_Arrow);
+			SetCursor((HCURSOR)yellowCursor); // ahh, much better
+			io.ConfigFlags &= ~ImGuiConfigFlags_NoMouse;
+		}
 #endif
 #endif
 
@@ -721,6 +739,11 @@ int spinnyCube(HWND window,
 		modelRotation.y += 0.009f;
 		modelRotation.z += 0.001f;
 
+		if (mouseLook) {
+			modelRotation.x += mouseKeyboard->state.deltaY;
+			modelRotation.y += mouseKeyboard->state.deltaX;
+		}
+
 		///////////////////////////////////////////////////////////////////////////////////////////
 
 		float4x4 world = rotateZ * rotateY * rotateX;
@@ -795,6 +818,8 @@ int spinnyCube(HWND window,
 				if (ImGui::MenuItem("Show strings")) { showStringsWindow = true; }
 				ImGui::EndMenu();
 			}
+			if (mouseLook)
+				ImGui::Text("Press TAB to release cursor");
 			ImGui::EndMainMenuBar();
 		}