mirror of
https://github.com/libretro/scummvm.git
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197 lines
7.6 KiB
C++
197 lines
7.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "ags/events.h"
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#include "common/system.h"
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#include "ags/globals.h"
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namespace AGS {
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EventsManager *g_events;
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EventsManager::EventsManager() : _keyFlags(0) {
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g_events = this;
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_keys.resize(AGS3::__allegro_KEY_MAX);
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}
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EventsManager::~EventsManager() {
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g_events = nullptr;
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}
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void EventsManager::pollEvents() {
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Common::Event e;
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while (g_system->getEventManager()->pollEvent(e)) {
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if (e.type == Common::EVENT_QUIT) {
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_G(want_exit) = true;
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_G(abort_engine) = true;
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_G(check_dynamic_sprites_at_exit) = false;
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} else if (e.type == Common::EVENT_KEYDOWN) {
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updateKeys(e.kbd.keycode, true);
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if (!isModifierKey(e.kbd.keycode)) {
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// Add keypresses to the pending key list
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_pendingKeys.push(e.kbd);
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}
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} else if (e.type == Common::EVENT_KEYUP) {
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updateKeys(e.kbd.keycode, false);
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} else {
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// Add other event types to the pending events queue. If the event is a
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// mouse move and the prior one was also, then discard the prior one.
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// This'll help prevent too many mouse move events accumulating
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if (e.type == Common::EVENT_MOUSEMOVE && !_pendingEvents.empty() &&
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_pendingEvents.back().type == Common::EVENT_MOUSEMOVE)
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_pendingEvents.back() = e;
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else
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_pendingEvents.push(e);
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}
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}
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}
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bool EventsManager::keypressed() {
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pollEvents();
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return !_pendingKeys.empty();
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}
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int EventsManager::readKey() {
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pollEvents();
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if (_pendingKeys.empty())
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return 0;
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Common::KeyState keyState = _pendingKeys.pop();
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int code = getScancode(keyState.keycode) << 8;
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if (keyState.ascii <= 127)
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code = keyState.ascii;
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return code;
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}
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Common::Event EventsManager::readEvent() {
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pollEvents();
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return _pendingEvents.empty() ? Common::Event() : _pendingEvents.pop();
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}
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void EventsManager::warpMouse(const Common::Point &newPos) {
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g_system->warpMouse(newPos.x, newPos.y);
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}
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bool EventsManager::isModifierKey(const Common::KeyCode &keycode) const {
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return keycode == Common::KEYCODE_LCTRL || keycode == Common::KEYCODE_LALT
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|| keycode == Common::KEYCODE_RCTRL || keycode == Common::KEYCODE_RALT
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|| keycode == Common::KEYCODE_LSHIFT || keycode == Common::KEYCODE_RSHIFT
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|| keycode == Common::KEYCODE_LSUPER || keycode == Common::KEYCODE_RSUPER
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|| keycode == Common::KEYCODE_CAPSLOCK || keycode == Common::KEYCODE_NUMLOCK
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|| keycode == Common::KEYCODE_SCROLLOCK;
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}
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int EventsManager::getScancode(Common::KeyCode keycode) const {
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if (keycode >= Common::KEYCODE_a && keycode <= Common::KEYCODE_z)
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return (int)keycode - Common::KEYCODE_a + AGS3::__allegro_KEY_A;
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if (keycode >= Common::KEYCODE_0 && keycode <= Common::KEYCODE_9)
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return (int)keycode - Common::KEYCODE_0 + AGS3::__allegro_KEY_0;
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if (keycode >= Common::KEYCODE_KP0 && keycode <= Common::KEYCODE_KP9)
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return (int)keycode - Common::KEYCODE_KP0 + AGS3::__allegro_KEY_0_PAD;
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if (keycode >= Common::KEYCODE_F1 && keycode <= Common::KEYCODE_F12)
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return (int)keycode - Common::KEYCODE_F1 + AGS3::__allegro_KEY_F1;
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switch (keycode) {
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case Common::KEYCODE_ESCAPE: return AGS3::__allegro_KEY_ESC;
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case Common::KEYCODE_TILDE: return AGS3::__allegro_KEY_TILDE;
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case Common::KEYCODE_MINUS: return AGS3::__allegro_KEY_MINUS;
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case Common::KEYCODE_EQUALS: return AGS3::__allegro_KEY_EQUALS;
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case Common::KEYCODE_BACKSPACE: return AGS3::__allegro_KEY_BACKSPACE;
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case Common::KEYCODE_TAB: return AGS3::__allegro_KEY_TAB;
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case Common::KEYCODE_LEFTBRACKET: return AGS3::__allegro_KEY_OPENBRACE;
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case Common::KEYCODE_RIGHTBRACKET: return AGS3::__allegro_KEY_CLOSEBRACE;
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case Common::KEYCODE_RETURN: return AGS3::__allegro_KEY_ENTER;
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case Common::KEYCODE_COLON: return AGS3::__allegro_KEY_COLON;
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case Common::KEYCODE_QUOTE: return AGS3::__allegro_KEY_QUOTE;
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case Common::KEYCODE_BACKSLASH: return AGS3::__allegro_KEY_BACKSLASH;
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case Common::KEYCODE_COMMA: return AGS3::__allegro_KEY_COMMA;
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case Common::KEYCODE_SLASH: return AGS3::__allegro_KEY_SLASH;
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case Common::KEYCODE_SPACE: return AGS3::__allegro_KEY_SPACE;
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case Common::KEYCODE_INSERT: return AGS3::__allegro_KEY_INSERT;
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case Common::KEYCODE_DELETE: return AGS3::__allegro_KEY_DEL;
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case Common::KEYCODE_HOME: return AGS3::__allegro_KEY_HOME;
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case Common::KEYCODE_END: return AGS3::__allegro_KEY_END;
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case Common::KEYCODE_PAGEUP: return AGS3::__allegro_KEY_PGUP;
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case Common::KEYCODE_PAGEDOWN: return AGS3::__allegro_KEY_PGDN;
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case Common::KEYCODE_LEFT: return AGS3::__allegro_KEY_LEFT;
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case Common::KEYCODE_RIGHT: return AGS3::__allegro_KEY_RIGHT;
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case Common::KEYCODE_UP: return AGS3::__allegro_KEY_UP;
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case Common::KEYCODE_DOWN: return AGS3::__allegro_KEY_DOWN;
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case Common::KEYCODE_KP_DIVIDE: return AGS3::__allegro_KEY_SLASH_PAD;
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case Common::KEYCODE_ASTERISK: return AGS3::__allegro_KEY_ASTERISK;
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case Common::KEYCODE_KP_MINUS: return AGS3::__allegro_KEY_MINUS_PAD;
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case Common::KEYCODE_KP_PLUS: return AGS3::__allegro_KEY_PLUS_PAD;
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case Common::KEYCODE_KP_PERIOD: return AGS3::__allegro_KEY_DEL_PAD;
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case Common::KEYCODE_KP_ENTER: return AGS3::__allegro_KEY_ENTER_PAD;
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case Common::KEYCODE_PRINT: return AGS3::__allegro_KEY_PRTSCR;
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case Common::KEYCODE_PAUSE: return AGS3::__allegro_KEY_PAUSE;
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case Common::KEYCODE_SEMICOLON: return AGS3::__allegro_KEY_SEMICOLON;
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case Common::KEYCODE_LSHIFT: return AGS3::__allegro_KEY_LSHIFT;
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case Common::KEYCODE_RSHIFT: return AGS3::__allegro_KEY_RSHIFT;
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case Common::KEYCODE_LCTRL: return AGS3::__allegro_KEY_LCONTROL;
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case Common::KEYCODE_RCTRL: return AGS3::__allegro_KEY_RCONTROL;
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case Common::KEYCODE_LALT: return AGS3::__allegro_KEY_ALT;
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case Common::KEYCODE_RALT: return AGS3::__allegro_KEY_ALT;
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case Common::KEYCODE_SCROLLOCK: return AGS3::__allegro_KEY_SCRLOCK;
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case Common::KEYCODE_NUMLOCK: return AGS3::__allegro_KEY_NUMLOCK;
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case Common::KEYCODE_CAPSLOCK: return AGS3::__allegro_KEY_CAPSLOCK;
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default: return 0;
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}
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}
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void EventsManager::updateKeys(const Common::KeyState &keyState, bool isDown) {
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// Update the keys array with whether the key is pressed
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int scancode = getScancode(keyState.keycode);
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if (scancode != 0)
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_keys[scancode] = isDown;
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// Update shift flags
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_keyFlags = 0;
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if (keyState.flags & Common::KBD_SHIFT)
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_keyFlags |= AGS3::__allegro_KB_SHIFT_FLAG;
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if (keyState.flags & Common::KBD_CTRL)
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_keyFlags |= AGS3::__allegro_KB_CTRL_FLAG;
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if (keyState.flags & Common::KBD_ALT)
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_keyFlags |= AGS3::__allegro_KB_ALT_FLAG;
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if (keyState.flags & Common::KBD_META)
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_keyFlags |= AGS3::__allegro_KB_COMMAND_FLAG;
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if (keyState.flags & Common::KBD_SCRL)
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_keyFlags |= AGS3::__allegro_KB_SCROLOCK_FLAG;
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if (keyState.flags & Common::KBD_NUM)
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_keyFlags |= AGS3::__allegro_KB_NUMLOCK_FLAG;
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if (keyState.flags & Common::KBD_CAPS)
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_keyFlags |= AGS3::__allegro_KB_CAPSLOCK_FLAG;
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}
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bool EventsManager::isKeyPressed(AGS3::AllegroKbdKeycode keycode) const {
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return _keys[keycode];
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}
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} // namespace AGS
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