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82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
// Luanti
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// SPDX-License-Identifier: LGPL-2.1-or-later
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// Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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#pragma once
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#include "irrlichttypes.h"
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#include <Keycodes.h>
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#include <IEventReceiver.h>
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#include <string>
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#include <variant>
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/* A key press, consisting of a scancode or a keycode.
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* This fits into 64 bits, so prefer passing this by value.
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*/
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class KeyPress
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{
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public:
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KeyPress() = default;
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KeyPress(const std::string &name);
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KeyPress(const irr::SEvent::SKeyInput &in);
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// Get a string representation that is suitable for use in minetest.conf
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std::string sym() const;
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// Get a human-readable string representation
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std::string name() const;
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// Get the corresponding keycode or KEY_UNKNOWN if one is not available
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irr::EKEY_CODE getKeycode() const;
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// Get the corresponding keychar or '\0' if one is not available
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wchar_t getKeychar() const;
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// Get the scancode or 0 is one is not available
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u32 getScancode() const
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{
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if (auto pv = std::get_if<u32>(&scancode))
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return *pv;
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return 0;
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}
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bool operator==(KeyPress o) const {
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return scancode == o.scancode;
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}
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bool operator!=(KeyPress o) const {
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return !(*this == o);
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}
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// Check whether the keypress is valid
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operator bool() const
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{
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return std::holds_alternative<irr::EKEY_CODE>(scancode) ?
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Keycode::isValid(std::get<irr::EKEY_CODE>(scancode)) :
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std::get<u32>(scancode) != 0;
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}
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static KeyPress getSpecialKey(const std::string &name);
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private:
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bool loadFromScancode(const std::string &name);
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void loadFromKey(irr::EKEY_CODE keycode, wchar_t keychar);
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std::string formatScancode() const;
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std::variant<u32, irr::EKEY_CODE> scancode = irr::KEY_UNKNOWN;
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};
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// Global defines for convenience
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// This implementation defers creation of the objects to make sure that the
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// IrrlichtDevice is initialized.
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#define EscapeKey KeyPress::getSpecialKey("KEY_ESCAPE")
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#define LMBKey KeyPress::getSpecialKey("KEY_LBUTTON")
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#define MMBKey KeyPress::getSpecialKey("KEY_MBUTTON") // Middle Mouse Button
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#define RMBKey KeyPress::getSpecialKey("KEY_RBUTTON")
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// Key configuration getter
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KeyPress getKeySetting(const std::string &settingname);
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// Clear fast lookup cache
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void clearKeyCache();
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