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https://github.com/LCEMP/LCEMP.git
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Initial commit - LCEMP source code (assets excluded)
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NOTPIES
294
Minecraft.Client/KeyboardMouseInput.cpp
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294
Minecraft.Client/KeyboardMouseInput.cpp
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#include "stdafx.h"
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#include "KeyboardMouseInput.h"
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#include <cmath>
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KeyboardMouseInput g_KBMInput;
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extern HWND g_hWnd;
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// coded by notpies fr
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void KeyboardMouseInput::Init()
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{
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memset(m_keyDown, 0, sizeof(m_keyDown));
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memset(m_keyDownPrev, 0, sizeof(m_keyDownPrev));
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memset(m_keyPressedAccum, 0, sizeof(m_keyPressedAccum));
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memset(m_keyReleasedAccum, 0, sizeof(m_keyReleasedAccum));
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memset(m_keyPressed, 0, sizeof(m_keyPressed));
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memset(m_keyReleased, 0, sizeof(m_keyReleased));
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memset(m_mouseButtonDown, 0, sizeof(m_mouseButtonDown));
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memset(m_mouseButtonDownPrev, 0, sizeof(m_mouseButtonDownPrev));
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memset(m_mouseBtnPressedAccum, 0, sizeof(m_mouseBtnPressedAccum));
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memset(m_mouseBtnReleasedAccum, 0, sizeof(m_mouseBtnReleasedAccum));
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memset(m_mouseBtnPressed, 0, sizeof(m_mouseBtnPressed));
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memset(m_mouseBtnReleased, 0, sizeof(m_mouseBtnReleased));
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m_mouseX = 0;
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m_mouseY = 0;
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m_mouseDeltaX = 0;
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m_mouseDeltaY = 0;
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m_mouseDeltaAccumX = 0;
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m_mouseDeltaAccumY = 0;
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m_mouseWheel = 0;
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m_mouseWheelAccum = 0;
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m_mouseGrabbed = false;
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m_windowFocused = true;
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m_hasInput = false;
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RAWINPUTDEVICE rid;
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rid.usUsagePage = 0x01; // HID_USAGE_PAGE_GENERIC
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rid.usUsage = 0x02; // HID_USAGE_GENERIC_MOUSE
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rid.dwFlags = 0;
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rid.hwndTarget = g_hWnd;
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RegisterRawInputDevices(&rid, 1, sizeof(rid));
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if (g_hWnd)
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{
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while (ShowCursor(FALSE) >= 0) {}
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}
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}
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void KeyboardMouseInput::ClearAllState()
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{
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memset(m_keyDown, 0, sizeof(m_keyDown));
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memset(m_keyDownPrev, 0, sizeof(m_keyDownPrev));
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memset(m_keyPressedAccum, 0, sizeof(m_keyPressedAccum));
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memset(m_keyReleasedAccum, 0, sizeof(m_keyReleasedAccum));
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memset(m_keyPressed, 0, sizeof(m_keyPressed));
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memset(m_keyReleased, 0, sizeof(m_keyReleased));
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memset(m_mouseButtonDown, 0, sizeof(m_mouseButtonDown));
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memset(m_mouseButtonDownPrev, 0, sizeof(m_mouseButtonDownPrev));
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memset(m_mouseBtnPressedAccum, 0, sizeof(m_mouseBtnPressedAccum));
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memset(m_mouseBtnReleasedAccum, 0, sizeof(m_mouseBtnReleasedAccum));
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memset(m_mouseBtnPressed, 0, sizeof(m_mouseBtnPressed));
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memset(m_mouseBtnReleased, 0, sizeof(m_mouseBtnReleased));
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m_mouseDeltaX = 0;
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m_mouseDeltaY = 0;
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m_mouseDeltaAccumX = 0;
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m_mouseDeltaAccumY = 0;
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m_mouseWheel = 0;
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m_mouseWheelAccum = 0;
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}
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void KeyboardMouseInput::Tick()
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{
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memcpy(m_keyDownPrev, m_keyDown, sizeof(m_keyDown));
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memcpy(m_mouseButtonDownPrev, m_mouseButtonDown, sizeof(m_mouseButtonDown));
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memcpy(m_keyPressed, m_keyPressedAccum, sizeof(m_keyPressedAccum));
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memcpy(m_keyReleased, m_keyReleasedAccum, sizeof(m_keyReleasedAccum));
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memset(m_keyPressedAccum, 0, sizeof(m_keyPressedAccum));
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memset(m_keyReleasedAccum, 0, sizeof(m_keyReleasedAccum));
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memcpy(m_mouseBtnPressed, m_mouseBtnPressedAccum, sizeof(m_mouseBtnPressedAccum));
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memcpy(m_mouseBtnReleased, m_mouseBtnReleasedAccum, sizeof(m_mouseBtnReleasedAccum));
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memset(m_mouseBtnPressedAccum, 0, sizeof(m_mouseBtnPressedAccum));
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memset(m_mouseBtnReleasedAccum, 0, sizeof(m_mouseBtnReleasedAccum));
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m_mouseDeltaX = m_mouseDeltaAccumX;
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m_mouseDeltaY = m_mouseDeltaAccumY;
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m_mouseDeltaAccumX = 0;
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m_mouseDeltaAccumY = 0;
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m_mouseWheel = m_mouseWheelAccum;
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m_mouseWheelAccum = 0;
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m_hasInput = (m_mouseDeltaX != 0 || m_mouseDeltaY != 0 || m_mouseWheel != 0);
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if (!m_hasInput)
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{
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for (int i = 0; i < MAX_KEYS; i++)
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{
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if (m_keyDown[i]) { m_hasInput = true; break; }
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}
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}
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if (!m_hasInput)
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{
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for (int i = 0; i < MAX_MOUSE_BUTTONS; i++)
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{
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if (m_mouseButtonDown[i]) { m_hasInput = true; break; }
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}
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}
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if (m_mouseGrabbed && g_hWnd)
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{
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RECT rc;
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GetClientRect(g_hWnd, &rc);
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POINT center;
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center.x = (rc.right - rc.left) / 2;
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center.y = (rc.bottom - rc.top) / 2;
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ClientToScreen(g_hWnd, ¢er);
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SetCursorPos(center.x, center.y);
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}
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}
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void KeyboardMouseInput::OnKeyDown(int vkCode)
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{
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if (vkCode >= 0 && vkCode < MAX_KEYS)
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{
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if (!m_keyDown[vkCode])
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m_keyPressedAccum[vkCode] = true;
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m_keyDown[vkCode] = true;
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}
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}
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void KeyboardMouseInput::OnKeyUp(int vkCode)
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{
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if (vkCode >= 0 && vkCode < MAX_KEYS)
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{
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if (m_keyDown[vkCode])
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m_keyReleasedAccum[vkCode] = true;
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m_keyDown[vkCode] = false;
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}
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}
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void KeyboardMouseInput::OnMouseButtonDown(int button)
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{
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if (button >= 0 && button < MAX_MOUSE_BUTTONS)
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{
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if (!m_mouseButtonDown[button])
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m_mouseBtnPressedAccum[button] = true;
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m_mouseButtonDown[button] = true;
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}
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}
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void KeyboardMouseInput::OnMouseButtonUp(int button)
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{
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if (button >= 0 && button < MAX_MOUSE_BUTTONS)
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{
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if (m_mouseButtonDown[button])
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m_mouseBtnReleasedAccum[button] = true;
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m_mouseButtonDown[button] = false;
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}
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}
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void KeyboardMouseInput::OnMouseMove(int x, int y)
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{
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m_mouseX = x;
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m_mouseY = y;
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}
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void KeyboardMouseInput::OnMouseWheel(int delta)
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{
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m_mouseWheelAccum += delta;
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}
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void KeyboardMouseInput::OnRawMouseDelta(int dx, int dy)
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{
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m_mouseDeltaAccumX += dx;
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m_mouseDeltaAccumY += dy;
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}
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bool KeyboardMouseInput::IsKeyDown(int vkCode) const
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{
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if (vkCode >= 0 && vkCode < MAX_KEYS)
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return m_keyDown[vkCode];
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return false;
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}
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bool KeyboardMouseInput::IsKeyPressed(int vkCode) const
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{
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if (vkCode >= 0 && vkCode < MAX_KEYS)
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return m_keyPressed[vkCode];
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return false;
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}
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bool KeyboardMouseInput::IsKeyReleased(int vkCode) const
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{
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if (vkCode >= 0 && vkCode < MAX_KEYS)
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return m_keyReleased[vkCode];
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return false;
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}
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bool KeyboardMouseInput::IsMouseButtonDown(int button) const
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{
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if (button >= 0 && button < MAX_MOUSE_BUTTONS)
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return m_mouseButtonDown[button];
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return false;
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}
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bool KeyboardMouseInput::IsMouseButtonPressed(int button) const
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{
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if (button >= 0 && button < MAX_MOUSE_BUTTONS)
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return m_mouseBtnPressed[button];
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return false;
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}
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bool KeyboardMouseInput::IsMouseButtonReleased(int button) const
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{
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if (button >= 0 && button < MAX_MOUSE_BUTTONS)
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return m_mouseBtnReleased[button];
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return false;
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}
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void KeyboardMouseInput::SetMouseGrabbed(bool grabbed)
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{
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if (m_mouseGrabbed == grabbed)
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return;
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m_mouseGrabbed = grabbed;
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if (grabbed && g_hWnd)
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{
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RECT rc;
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GetClientRect(g_hWnd, &rc);
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POINT center;
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center.x = (rc.right - rc.left) / 2;
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center.y = (rc.bottom - rc.top) / 2;
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ClientToScreen(g_hWnd, ¢er);
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SetCursorPos(center.x, center.y);
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m_mouseDeltaAccumX = 0;
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m_mouseDeltaAccumY = 0;
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}
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}
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static void ClipCursorToWindow(HWND hWnd)
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{
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if (!hWnd) return;
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RECT rc;
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GetClientRect(hWnd, &rc);
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POINT topLeft = { rc.left, rc.top };
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POINT bottomRight = { rc.right, rc.bottom };
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ClientToScreen(hWnd, &topLeft);
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ClientToScreen(hWnd, &bottomRight);
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RECT clipRect = { topLeft.x, topLeft.y, bottomRight.x, bottomRight.y };
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ClipCursor(&clipRect);
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}
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void KeyboardMouseInput::SetWindowFocused(bool focused)
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{
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m_windowFocused = focused;
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if (focused)
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{
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while (ShowCursor(FALSE) >= 0) {}
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ClipCursorToWindow(g_hWnd);
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}
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else
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{
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while (ShowCursor(TRUE) < 0) {}
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ClipCursor(NULL);
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}
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}
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float KeyboardMouseInput::GetMoveX() const
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{
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float x = 0.0f;
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if (m_keyDown[KEY_LEFT]) x += 1.0f;
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if (m_keyDown[KEY_RIGHT]) x -= 1.0f;
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return x;
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}
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float KeyboardMouseInput::GetMoveY() const
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{
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float y = 0.0f;
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if (m_keyDown[KEY_FORWARD]) y += 1.0f;
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if (m_keyDown[KEY_BACKWARD]) y -= 1.0f;
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return y;
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}
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float KeyboardMouseInput::GetLookX(float sensitivity) const
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{
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return (float)m_mouseDeltaX * sensitivity;
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}
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float KeyboardMouseInput::GetLookY(float sensitivity) const
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{
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return (float)(-m_mouseDeltaY) * sensitivity;
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}
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