390 lines
7.7 KiB
C++
390 lines
7.7 KiB
C++
#include <std_include.hpp>
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#include "loader/component_loader.hpp"
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#include <utilities/string.hpp>
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#include "definitions/game.hpp"
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#include "console.hpp"
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#include <utilities/thread.hpp>
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#include <utilities/hook.hpp>
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#define OUTPUT_HANDLE GetStdHandle(STD_OUTPUT_HANDLE)
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namespace console
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{
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namespace
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{
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const char* branding_str = "shield> ";
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size_t branding_length = std::strlen(branding_str);
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utilities::hook::detour printf_hook;
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std::recursive_mutex print_mutex;
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struct
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{
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bool kill;
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std::thread thread;
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HANDLE kill_event;
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char buffer[512]{};
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int cursor;
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std::int32_t history_index = -1;
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std::deque<std::string> history{};
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} con{};
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void set_cursor_pos(int x)
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{
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CONSOLE_SCREEN_BUFFER_INFO info{};
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GetConsoleScreenBufferInfo(OUTPUT_HANDLE, &info);
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info.dwCursorPosition.X = static_cast<short>(x);
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SetConsoleCursorPosition(OUTPUT_HANDLE, info.dwCursorPosition);
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}
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void show_cursor(const bool show)
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{
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CONSOLE_CURSOR_INFO info{};
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GetConsoleCursorInfo(OUTPUT_HANDLE, &info);
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info.bVisible = show;
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SetConsoleCursorInfo(OUTPUT_HANDLE, &info);
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}
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template <typename... Args>
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int invoke_printf(const char* fmt, Args&&... args)
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{
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return printf_hook.invoke<int>(fmt, std::forward<Args>(args)...);
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}
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std::string format(va_list* ap, const char* message)
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{
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static thread_local char buffer[0x1000];
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const auto count = vsnprintf_s(buffer, _TRUNCATE, message, *ap);
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if (count < 0)
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{
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return {};
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}
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return { buffer, static_cast<size_t>(count) };
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}
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void update()
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{
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std::lock_guard _0(print_mutex);
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show_cursor(false);
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set_cursor_pos(0);
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invoke_printf("%s%s", branding_str, con.buffer);
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set_cursor_pos(branding_length + con.cursor);
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show_cursor(true);
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}
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void clear_output()
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{
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std::lock_guard _0(print_mutex);
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show_cursor(false);
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set_cursor_pos(0);
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for (auto i = 0; i < branding_length + std::strlen(con.buffer); i++)
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{
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invoke_printf(" ");
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}
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set_cursor_pos(0);
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show_cursor(true);
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}
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int dispatch_message(const int type, const std::string& message)
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{
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std::lock_guard _0(print_mutex);
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clear_output();
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set_cursor_pos(0);
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const auto res = invoke_printf("%s", message.data());
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if (message.size() <= 0 || message[message.size() - 1] != '\n')
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{
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invoke_printf("\n");
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}
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update();
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return res;
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}
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void clear()
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{
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std::lock_guard _0(print_mutex);
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clear_output();
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strncpy_s(con.buffer, "", sizeof(con.buffer));
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con.cursor = 0;
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set_cursor_pos(0);
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}
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size_t get_max_input_length()
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{
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CONSOLE_SCREEN_BUFFER_INFO info{};
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GetConsoleScreenBufferInfo(OUTPUT_HANDLE, &info);
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const auto columns = static_cast<size_t>(info.srWindow.Right - info.srWindow.Left - 1);
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return std::max(size_t(0), std::min(columns, sizeof(con.buffer) - branding_length));
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}
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void handle_resize()
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{
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clear();
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update();
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}
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void handle_input(const INPUT_RECORD record)
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{
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if (record.EventType == WINDOW_BUFFER_SIZE_EVENT)
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{
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handle_resize();
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return;
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}
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if (record.EventType != KEY_EVENT || !record.Event.KeyEvent.bKeyDown)
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{
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return;
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}
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std::lock_guard _0(print_mutex);
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const auto key = record.Event.KeyEvent.wVirtualKeyCode;
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switch (key)
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{
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case VK_UP:
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{
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if (++con.history_index >= con.history.size())
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{
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con.history_index = static_cast<int>(con.history.size()) - 1;
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}
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clear();
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if (con.history_index != -1)
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{
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strncpy_s(con.buffer, con.history.at(con.history_index).data(), sizeof(con.buffer));
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con.cursor = static_cast<int>(strlen(con.buffer));
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}
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update();
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break;
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}
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case VK_DOWN:
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{
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if (--con.history_index < -1)
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{
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con.history_index = -1;
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}
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clear();
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if (con.history_index != -1)
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{
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strncpy_s(con.buffer, con.history.at(con.history_index).data(), sizeof(con.buffer));
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con.cursor = static_cast<int>(strlen(con.buffer));
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}
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update();
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break;
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}
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case VK_LEFT:
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{
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if (con.cursor > 0)
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{
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con.cursor--;
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set_cursor_pos(branding_length + con.cursor);
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}
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break;
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}
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case VK_RIGHT:
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{
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if (con.cursor < std::strlen(con.buffer))
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{
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con.cursor++;
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set_cursor_pos(branding_length + con.cursor);
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}
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break;
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}
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case VK_RETURN:
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{
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if (con.history_index != -1)
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{
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const auto itr = con.history.begin() + con.history_index;
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if (*itr == con.buffer)
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{
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con.history.erase(con.history.begin() + con.history_index);
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}
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}
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if (con.buffer[0])
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{
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con.history.push_front(con.buffer);
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}
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if (con.history.size() > 10)
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{
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con.history.erase(con.history.begin() + 10);
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}
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con.history_index = -1;
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game::Cbuf_AddText(0, utilities::string::va("%s \n", con.buffer));
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con.cursor = 0;
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clear_output();
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invoke_printf("%s%s\r\n", branding_str, con.buffer);
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strncpy_s(con.buffer, "", sizeof(con.buffer));
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break;
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}
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case VK_BACK:
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{
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if (con.cursor <= 0)
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{
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break;
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}
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clear_output();
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std::memmove(con.buffer + con.cursor - 1, con.buffer + con.cursor, strlen(con.buffer) + 1 - con.cursor);
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con.cursor--;
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update();
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break;
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}
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case VK_ESCAPE:
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{
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con.cursor = 0;
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clear_output();
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strncpy_s(con.buffer, "", sizeof(con.buffer));
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break;
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}
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default:
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{
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const auto c = record.Event.KeyEvent.uChar.AsciiChar;
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if (!c)
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{
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break;
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}
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if (std::strlen(con.buffer) + 1 >= get_max_input_length())
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{
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break;
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}
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std::memmove(con.buffer + con.cursor + 1, con.buffer + con.cursor, std::strlen(con.buffer) + 1 - con.cursor);
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con.buffer[con.cursor] = c;
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con.cursor++;
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update();
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break;
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}
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}
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}
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int __cdecl printf_stub(const char* fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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const auto result = format(&ap, fmt);
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va_end(ap);
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return dispatch_message(con_type_info, result);
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}
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}
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void print(const int type, const char* fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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const auto result = format(&ap, fmt);
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va_end(ap);
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dispatch_message(type, result);
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}
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class component final : public component_interface
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{
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public:
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component()
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{
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ShowWindow(GetConsoleWindow(), SW_HIDE);
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}
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void pre_start() override
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{
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FILE* empty;
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AllocConsole();
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AttachConsole(GetCurrentProcessId());
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freopen_s(&empty, "CONOUT$", "r", stdin);
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freopen_s(&empty, "CONOUT$", "w", stdout);
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freopen_s(&empty, "CONOUT$", "w", stderr);
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SetConsoleTitle("Project-Bo4:");
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printf_hook.create(printf, printf_stub);
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ShowWindow(GetConsoleWindow(), SW_SHOW);
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con.kill_event = CreateEvent(NULL, TRUE, FALSE, NULL);
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con.thread = utilities::thread::create_named_thread("Console", []()
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{
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const auto handle = GetStdHandle(STD_INPUT_HANDLE);
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HANDLE handles[2] = { handle, con.kill_event };
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MSG msg{};
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INPUT_RECORD record{};
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DWORD num_events{};
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while (!con.kill)
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{
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const auto result = MsgWaitForMultipleObjects(2, handles, FALSE, INFINITE, QS_ALLINPUT);
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if (con.kill)
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{
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return;
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}
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switch (result)
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{
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case WAIT_OBJECT_0:
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{
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if (!ReadConsoleInput(handle, &record, 1, &num_events) || num_events == 0)
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{
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break;
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}
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handle_input(record);
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break;
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}
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case WAIT_OBJECT_0 + 1:
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{
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if (!PeekMessageA(&msg, GetConsoleWindow(), NULL, NULL, PM_REMOVE))
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{
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break;
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}
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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break;
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}
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}
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} });
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}
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void pre_destroy() override
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{
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con.kill = true;
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SetEvent(con.kill_event);
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if (con.thread.joinable())
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{
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con.thread.join();
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}
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}
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};
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}
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REGISTER_COMPONENT(console::component)
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