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LCEMP/Minecraft.Client/KeyboardMouseInput.cpp
coah 7da64d57a8 add keyboard/mouse controls for menus and gameplay 
wired up keyboard and mouse input for menu navigation, inventory cursor, crafting, and general UI interaction. added WASD movement, mouse look, left ctrl sprint, left shift sneak, and all the keybinds for gameplay. also fixed the sound engine crashing when it cant find a sound asset, and set up the x64 build with proper post-build steps for dlls and redist
2026-03-01 20:02:02 -06:00

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7.4 KiB
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#include "stdafx.h"
#include "KeyboardMouseInput.h"
#include <cmath>
KeyboardMouseInput g_KBMInput;
extern HWND g_hWnd;
// Forward declaration
static void ClipCursorToWindow(HWND hWnd);
// coded by notpies fr
void KeyboardMouseInput::Init()
{
memset(m_keyDown, 0, sizeof(m_keyDown));
memset(m_keyDownPrev, 0, sizeof(m_keyDownPrev));
memset(m_keyPressedAccum, 0, sizeof(m_keyPressedAccum));
memset(m_keyReleasedAccum, 0, sizeof(m_keyReleasedAccum));
memset(m_keyPressed, 0, sizeof(m_keyPressed));
memset(m_keyReleased, 0, sizeof(m_keyReleased));
memset(m_mouseButtonDown, 0, sizeof(m_mouseButtonDown));
memset(m_mouseButtonDownPrev, 0, sizeof(m_mouseButtonDownPrev));
memset(m_mouseBtnPressedAccum, 0, sizeof(m_mouseBtnPressedAccum));
memset(m_mouseBtnReleasedAccum, 0, sizeof(m_mouseBtnReleasedAccum));
memset(m_mouseBtnPressed, 0, sizeof(m_mouseBtnPressed));
memset(m_mouseBtnReleased, 0, sizeof(m_mouseBtnReleased));
m_mouseX = 0;
m_mouseY = 0;
m_mouseDeltaX = 0;
m_mouseDeltaY = 0;
m_mouseDeltaAccumX = 0;
m_mouseDeltaAccumY = 0;
m_mouseWheel = 0;
m_mouseWheelAccum = 0;
m_mouseGrabbed = false;
m_windowFocused = true;
m_hasInput = false;
RAWINPUTDEVICE rid;
rid.usUsagePage = 0x01; // HID_USAGE_PAGE_GENERIC
rid.usUsage = 0x02; // HID_USAGE_GENERIC_MOUSE
rid.dwFlags = 0;
rid.hwndTarget = g_hWnd;
RegisterRawInputDevices(&rid, 1, sizeof(rid));
}
void KeyboardMouseInput::ClearAllState()
{
memset(m_keyDown, 0, sizeof(m_keyDown));
memset(m_keyDownPrev, 0, sizeof(m_keyDownPrev));
memset(m_keyPressedAccum, 0, sizeof(m_keyPressedAccum));
memset(m_keyReleasedAccum, 0, sizeof(m_keyReleasedAccum));
memset(m_keyPressed, 0, sizeof(m_keyPressed));
memset(m_keyReleased, 0, sizeof(m_keyReleased));
memset(m_mouseButtonDown, 0, sizeof(m_mouseButtonDown));
memset(m_mouseButtonDownPrev, 0, sizeof(m_mouseButtonDownPrev));
memset(m_mouseBtnPressedAccum, 0, sizeof(m_mouseBtnPressedAccum));
memset(m_mouseBtnReleasedAccum, 0, sizeof(m_mouseBtnReleasedAccum));
memset(m_mouseBtnPressed, 0, sizeof(m_mouseBtnPressed));
memset(m_mouseBtnReleased, 0, sizeof(m_mouseBtnReleased));
m_mouseDeltaX = 0;
m_mouseDeltaY = 0;
m_mouseDeltaAccumX = 0;
m_mouseDeltaAccumY = 0;
m_mouseWheel = 0;
m_mouseWheelAccum = 0;
}
void KeyboardMouseInput::Tick()
{
memcpy(m_keyDownPrev, m_keyDown, sizeof(m_keyDown));
memcpy(m_mouseButtonDownPrev, m_mouseButtonDown, sizeof(m_mouseButtonDown));
memcpy(m_keyPressed, m_keyPressedAccum, sizeof(m_keyPressedAccum));
memcpy(m_keyReleased, m_keyReleasedAccum, sizeof(m_keyReleasedAccum));
memset(m_keyPressedAccum, 0, sizeof(m_keyPressedAccum));
memset(m_keyReleasedAccum, 0, sizeof(m_keyReleasedAccum));
memcpy(m_mouseBtnPressed, m_mouseBtnPressedAccum, sizeof(m_mouseBtnPressedAccum));
memcpy(m_mouseBtnReleased, m_mouseBtnReleasedAccum, sizeof(m_mouseBtnReleasedAccum));
memset(m_mouseBtnPressedAccum, 0, sizeof(m_mouseBtnPressedAccum));
memset(m_mouseBtnReleasedAccum, 0, sizeof(m_mouseBtnReleasedAccum));
m_mouseDeltaX = m_mouseDeltaAccumX;
m_mouseDeltaY = m_mouseDeltaAccumY;
m_mouseDeltaAccumX = 0;
m_mouseDeltaAccumY = 0;
m_mouseWheel = m_mouseWheelAccum;
m_mouseWheelAccum = 0;
m_hasInput = (m_mouseDeltaX != 0 || m_mouseDeltaY != 0 || m_mouseWheel != 0);
if (!m_hasInput)
{
for (int i = 0; i < MAX_KEYS; i++)
{
if (m_keyDown[i]) { m_hasInput = true; break; }
}
}
if (!m_hasInput)
{
for (int i = 0; i < MAX_MOUSE_BUTTONS; i++)
{
if (m_mouseButtonDown[i]) { m_hasInput = true; break; }
}
}
if (m_mouseGrabbed && g_hWnd)
{
RECT rc;
GetClientRect(g_hWnd, &rc);
POINT center;
center.x = (rc.right - rc.left) / 2;
center.y = (rc.bottom - rc.top) / 2;
ClientToScreen(g_hWnd, &center);
SetCursorPos(center.x, center.y);
}
}
void KeyboardMouseInput::OnKeyDown(int vkCode)
{
if (vkCode >= 0 && vkCode < MAX_KEYS)
{
if (!m_keyDown[vkCode])
m_keyPressedAccum[vkCode] = true;
m_keyDown[vkCode] = true;
}
}
void KeyboardMouseInput::OnKeyUp(int vkCode)
{
if (vkCode >= 0 && vkCode < MAX_KEYS)
{
if (m_keyDown[vkCode])
m_keyReleasedAccum[vkCode] = true;
m_keyDown[vkCode] = false;
}
}
void KeyboardMouseInput::OnMouseButtonDown(int button)
{
if (button >= 0 && button < MAX_MOUSE_BUTTONS)
{
if (!m_mouseButtonDown[button])
m_mouseBtnPressedAccum[button] = true;
m_mouseButtonDown[button] = true;
}
}
void KeyboardMouseInput::OnMouseButtonUp(int button)
{
if (button >= 0 && button < MAX_MOUSE_BUTTONS)
{
if (m_mouseButtonDown[button])
m_mouseBtnReleasedAccum[button] = true;
m_mouseButtonDown[button] = false;
}
}
void KeyboardMouseInput::OnMouseMove(int x, int y)
{
m_mouseX = x;
m_mouseY = y;
}
void KeyboardMouseInput::OnMouseWheel(int delta)
{
m_mouseWheelAccum += delta;
}
void KeyboardMouseInput::OnRawMouseDelta(int dx, int dy)
{
m_mouseDeltaAccumX += dx;
m_mouseDeltaAccumY += dy;
}
bool KeyboardMouseInput::IsKeyDown(int vkCode) const
{
if (vkCode >= 0 && vkCode < MAX_KEYS)
return m_keyDown[vkCode];
return false;
}
bool KeyboardMouseInput::IsKeyPressed(int vkCode) const
{
if (vkCode >= 0 && vkCode < MAX_KEYS)
return m_keyPressed[vkCode];
return false;
}
bool KeyboardMouseInput::IsKeyReleased(int vkCode) const
{
if (vkCode >= 0 && vkCode < MAX_KEYS)
return m_keyReleased[vkCode];
return false;
}
bool KeyboardMouseInput::IsMouseButtonDown(int button) const
{
if (button >= 0 && button < MAX_MOUSE_BUTTONS)
return m_mouseButtonDown[button];
return false;
}
bool KeyboardMouseInput::IsMouseButtonPressed(int button) const
{
if (button >= 0 && button < MAX_MOUSE_BUTTONS)
return m_mouseBtnPressed[button];
return false;
}
bool KeyboardMouseInput::IsMouseButtonReleased(int button) const
{
if (button >= 0 && button < MAX_MOUSE_BUTTONS)
return m_mouseBtnReleased[button];
return false;
}
void KeyboardMouseInput::SetMouseGrabbed(bool grabbed)
{
if (m_mouseGrabbed == grabbed)
return;
m_mouseGrabbed = grabbed;
if (grabbed && g_hWnd)
{
while (ShowCursor(FALSE) >= 0) {}
ClipCursorToWindow(g_hWnd);
RECT rc;
GetClientRect(g_hWnd, &rc);
POINT center;
center.x = (rc.right - rc.left) / 2;
center.y = (rc.bottom - rc.top) / 2;
ClientToScreen(g_hWnd, &center);
SetCursorPos(center.x, center.y);
m_mouseDeltaAccumX = 0;
m_mouseDeltaAccumY = 0;
}
else if (!grabbed && g_hWnd)
{
while (ShowCursor(TRUE) < 0) {}
ClipCursor(NULL);
}
}
static void ClipCursorToWindow(HWND hWnd)
{
if (!hWnd) return;
RECT rc;
GetClientRect(hWnd, &rc);
POINT topLeft = { rc.left, rc.top };
POINT bottomRight = { rc.right, rc.bottom };
ClientToScreen(hWnd, &topLeft);
ClientToScreen(hWnd, &bottomRight);
RECT clipRect = { topLeft.x, topLeft.y, bottomRight.x, bottomRight.y };
ClipCursor(&clipRect);
}
void KeyboardMouseInput::SetWindowFocused(bool focused)
{
m_windowFocused = focused;
if (focused)
{
if (m_mouseGrabbed)
{
while (ShowCursor(FALSE) >= 0) {}
ClipCursorToWindow(g_hWnd);
}
else
{
while (ShowCursor(TRUE) < 0) {}
ClipCursor(NULL);
}
}
else
{
while (ShowCursor(TRUE) < 0) {}
ClipCursor(NULL);
}
}
float KeyboardMouseInput::GetMoveX() const
{
float x = 0.0f;
if (m_keyDown[KEY_LEFT]) x += 1.0f;
if (m_keyDown[KEY_RIGHT]) x -= 1.0f;
return x;
}
float KeyboardMouseInput::GetMoveY() const
{
float y = 0.0f;
if (m_keyDown[KEY_FORWARD]) y += 1.0f;
if (m_keyDown[KEY_BACKWARD]) y -= 1.0f;
return y;
}
float KeyboardMouseInput::GetLookX(float sensitivity) const
{
return (float)m_mouseDeltaX * sensitivity;
}
float KeyboardMouseInput::GetLookY(float sensitivity) const
{
return (float)(-m_mouseDeltaY) * sensitivity;
}
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