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shell.cpp
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/*
Copyright (C) 1991-2001 and beyond by Bungie Studios, Inc.
and the "Aleph One" developers.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
This license is contained in the file "COPYING",
which is included with this source code; it is available online at
http://www.gnu.org/licenses/gpl.html
*/
/*
* shell.cpp - Main game loop and input handling
*/
#include "cseries.h"
#include "map.h"
#include "monsters.h"
#include "player.h"
#include "render.h"
#include "shell.h"
#include "interface.h"
#include "SoundManager.h"
#include "fades.h"
#include "screen.h"
#include "Music.h"
#include "images.h"
#include "vbl.h"
#include "preferences.h"
#include "tags.h" /* for scenario file type.. */
#include "network_sound.h"
#include "mouse.h"
#include "joystick.h"
#include "screen_drawing.h"
#include "computer_interface.h"
#include "game_wad.h" /* yuck... */
#include "game_window.h" /* for draw_interface() */
#include "extensions.h"
#include "items.h"
#include "interface_menus.h"
#include "weapons.h"
#include "lua_script.h"
#include "Crosshairs.h"
#include "OGL_Render.h"
#include "OGL_Blitter.h"
#include "XML_ParseTreeRoot.h"
#include "FileHandler.h"
#include "Plugins.h"
#include "FilmProfile.h"
#include "mytm.h" // mytm_initialize(), for platform-specific shell_*.h
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <vector>
#include <sstream>
#include <boost/lexical_cast.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include "resource_manager.h"
#include "sdl_dialogs.h"
#include "sdl_fonts.h"
#include "sdl_widgets.h"
#include "DefaultStringSets.h"
#include "TextStrings.h"
#ifdef HAVE_CONFIG_H
#include "confpaths.h"
#endif
#include <ctime>
#include <exception>
#include <algorithm>
#include <vector>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_OPENGL
#include "OGL_Headers.h"
#endif
#if !defined(DISABLE_NETWORKING)
#include <SDL_net.h>
#endif
#ifdef HAVE_PNG
#include "IMG_savepng.h"
#endif
#ifdef HAVE_SDL_IMAGE
#include <SDL_image.h>
#if defined(__WIN32__)
#include "alephone32.xpm"
#elif !(defined(__APPLE__) && defined(__MACH__))
#include "alephone.xpm"
#endif
#endif
#ifdef __WIN32__
#include <windows.h>
#include <shlobj.h>
#endif
#include "alephversion.h"
#include "Logging.h"
#include "network.h"
#include "Console.h"
#include "Movie.h"
#include "HTTP.h"
#include "WadImageCache.h"
// LP addition: whether or not the cheats are active
// Defined in shell_misc.cpp
extern bool CheatsActive;
// Application names
#if defined(__MACH__) && defined(__APPLE__)
// These are defined and initialized in SDLMain.m
extern char *application_name;
extern char *application_identifier;
extern char *bundle_resource_path;
extern char *app_log_directory;
extern char *app_preferences_directory;
extern char *app_support_directory;
extern char *app_screenshots_directory;
#else
char application_name[] = A1_DISPLAY_NAME;
char application_identifier[] = "org.bungie.source.AlephOne";
#endif
#if defined(HAVE_BUNDLE_NAME)
// legacy bundle path
static const char sBundlePlaceholder[] = "AlephOneSDL.app/Contents/Resources/DataFiles";
#endif
// Data directories
vector <DirectorySpecifier> data_search_path; // List of directories in which data files are searched for
DirectorySpecifier local_data_dir; // Local (per-user) data file directory
DirectorySpecifier default_data_dir; // Default scenario directory
#if defined(HAVE_BUNDLE_NAME)
DirectorySpecifier bundle_data_dir; // Data inside Mac OS X app bundle
#endif
DirectorySpecifier preferences_dir; // Directory for preferences
DirectorySpecifier saved_games_dir; // Directory for saved games
DirectorySpecifier quick_saves_dir; // Directory for auto-named saved games
DirectorySpecifier image_cache_dir; // Directory for image cache
DirectorySpecifier recordings_dir; // Directory for recordings (except film buffer, which is stored in local_data_dir)
DirectorySpecifier screenshots_dir; // Directory for screenshots
DirectorySpecifier log_dir; // Directory for Aleph One Log.txt
std::string arg_directory;
std::vector<std::string> arg_files;
// Command-line options
bool option_nogl = false; // Disable OpenGL
bool option_nosound = false; // Disable sound output
bool option_nogamma = false; // Disable gamma table effects (menu fades)
bool option_debug = false;
bool option_nojoystick = false;
bool insecure_lua = false;
static bool force_fullscreen = false; // Force fullscreen mode
static bool force_windowed = false; // Force windowed mode
// Prototypes
static void main_event_loop(void);
extern int process_keyword_key(char key);
extern void handle_keyword(int type_of_cheat);
void PlayInterfaceButtonSound(short SoundID);
// From preprocess_map_sdl.cpp
extern bool get_default_music_spec(FileSpecifier &file);
extern bool get_default_theme_spec(FileSpecifier& file);
// From vbl_sdl.cpp
void execute_timer_tasks(uint32 time);
// Prototypes
static void initialize_application(void);
void shutdown_application(void);
static void initialize_marathon_music_handler(void);
static void process_event(const SDL_Event &event);
// cross-platform static variables
short vidmasterStringSetID = -1; // can be set with MML
static void usage(const char *prg_name)
{
char msg[] =
#ifdef __WIN32__
"Command line switches:\n\n"
#else
"\nUsage: %s [options] [directory] [file]\n"
#endif
"\t[-h | --help] Display this help message\n"
"\t[-v | --version] Display the game version\n"
"\t[-d | --debug] Allow saving of core files\n"
"\t (by disabling SDL parachute)\n"
"\t[-f | --fullscreen] Run the game fullscreen\n"
"\t[-w | --windowed] Run the game in a window\n"
#ifdef HAVE_OPENGL
"\t[-g | --nogl] Do not use OpenGL\n"
#endif
"\t[-s | --nosound] Do not access the sound card\n"
"\t[-m | --nogamma] Disable gamma table effects (menu fades)\n"
"\t[-j | --nojoystick] Do not initialize joysticks\n"
// Documenting this might be a bad idea?
// "\t[-i | --insecure_lua] Allow Lua netscripts to take over your computer\n"
"\tdirectory Directory containing scenario data files\n"
"\tfile Saved game to load or film to play\n"
"\nYou can also use the ALEPHONE_DATA environment variable to specify\n"
"the data directory.\n";
#ifdef __WIN32__
MessageBox(NULL, msg, "Usage", MB_OK | MB_ICONINFORMATION);
#else
printf(msg, prg_name);
#endif
exit(0);
}
extern bool handle_open_replay(FileSpecifier& File);
extern bool load_and_start_game(FileSpecifier& file);
bool handle_open_document(const std::string& filename)
{
bool done = false;
FileSpecifier file(filename);
switch (file.GetType())
{
case _typecode_scenario:
set_map_file(file);
break;
case _typecode_savegame:
if (load_and_start_game(file))
{
done = true;
}
break;
case _typecode_film:
if (handle_open_replay(file))
{
done = true;
}
break;
case _typecode_physics:
set_physics_file(file);
break;
case _typecode_shapes:
open_shapes_file(file);
break;
case _typecode_sounds:
SoundManager::instance()->OpenSoundFile(file);
break;
default:
break;
}
return done;
}
int main(int argc, char **argv)
{
// Print banner (don't bother if this doesn't appear when started from a GUI)
char app_name_version[256];
expand_app_variables(app_name_version, "Aleph One $appLongVersion$");
printf ("%s\n%s\n\n"
"Original code by Bungie Software <http://www.bungie.com/>\n"
"Additional work by Loren Petrich, Chris Pruett, Rhys Hill et al.\n"
"TCP/IP networking by Woody Zenfell\n"
"Expat XML library by James Clark\n"
"SDL port by Christian Bauer <[email protected]>\n"
#if defined(__MACH__) && defined(__APPLE__)
"Mac OS X/SDL version by Chris Lovell, Alexander Strange, and Woody Zenfell\n"
#endif
"\nThis is free software with ABSOLUTELY NO WARRANTY.\n"
"You are welcome to redistribute it under certain conditions.\n"
"For details, see the file COPYING.\n"
#if defined(__WIN32__)
// Windows is statically linked against SDL, so we have to include this:
"\nSimple DirectMedia Layer (SDL) Library included under the terms of the\n"
"GNU Library General Public License.\n"
"For details, see the file COPYING.SDL.\n"
#endif
#if !defined(DISABLE_NETWORKING)
"\nBuilt with network play enabled.\n"
#endif
#ifdef HAVE_LUA
"\nBuilt with Lua scripting enabled.\n"
#endif
, app_name_version, A1_HOMEPAGE_URL
);
// Parse arguments
char *prg_name = argv[0];
argc--;
argv++;
while (argc > 0) {
if (strcmp(*argv, "-h") == 0 || strcmp(*argv, "--help") == 0) {
usage(prg_name);
} else if (strcmp(*argv, "-v") == 0 || strcmp(*argv, "--version") == 0) {
printf("%s\n", app_name_version);
exit(0);
} else if (strcmp(*argv, "-f") == 0 || strcmp(*argv, "--fullscreen") == 0) {
force_fullscreen = true;
} else if (strcmp(*argv, "-w") == 0 || strcmp(*argv, "--windowed") == 0) {
force_windowed = true;
} else if (strcmp(*argv, "-g") == 0 || strcmp(*argv, "--nogl") == 0) {
option_nogl = true;
} else if (strcmp(*argv, "-s") == 0 || strcmp(*argv, "--nosound") == 0) {
option_nosound = true;
} else if (strcmp(*argv, "-j") == 0 || strcmp(*argv, "--nojoystick") == 0) {
option_nojoystick = true;
} else if (strcmp(*argv, "-m") == 0 || strcmp(*argv, "--nogamma") == 0) {
option_nogamma = true;
} else if (strcmp(*argv, "-i") == 0 || strcmp(*argv, "--insecure_lua") == 0) {
insecure_lua = true;
} else if (strcmp(*argv, "-d") == 0 || strcmp(*argv, "--debug") == 0) {
option_debug = true;
} else if (*argv[0] != '-') {
// if it's a directory, make it the default data dir
// otherwise push it and handle it later
FileSpecifier f(*argv);
if (f.IsDir())
{
arg_directory = *argv;
}
else
{
arg_files.push_back(*argv);
}
} else {
printf("Unrecognized argument '%s'.\n", *argv);
usage(prg_name);
}
argc--;
argv++;
}
try {
// Initialize everything
initialize_application();
for (std::vector<std::string>::iterator it = arg_files.begin(); it != arg_files.end(); ++it)
{
if (handle_open_document(*it))
{
break;
}
}
// Run the main loop
main_event_loop();
} catch (exception &e) {
try
{
logFatal("Unhandled exception: %s", e.what());
}
catch (...)
{
}
exit(1);
} catch (...) {
try
{
logFatal("Unknown exception");
}
catch (...)
{
}
exit(1);
}
return 0;
}
static int char_is_not_filesafe(int c)
{
return (c != ' ' && !std::isalnum(c));
}
static void initialize_application(void)
{
#if defined(__WIN32__) && defined(__MINGW32__)
if (LoadLibrary("exchndl.dll")) option_debug = true;
#endif
// Find data directories, construct search path
InitDefaultStringSets();
#if defined(unix) || defined(__NetBSD__) || defined(__OpenBSD__) || (defined(__APPLE__) && defined(__MACH__) && !defined(HAVE_BUNDLE_NAME))
default_data_dir = PKGDATADIR;
const char *home = getenv("HOME");
if (home)
local_data_dir = home;
local_data_dir += ".alephone";
log_dir = local_data_dir;
#elif defined(__APPLE__) && defined(__MACH__)
bundle_data_dir = bundle_resource_path;
bundle_data_dir += "DataFiles";
data_search_path.push_back(bundle_data_dir);
#ifndef SCENARIO_IS_BUNDLED
{
char* buf = getcwd(0, 0);
default_data_dir = buf;
free(buf);
}
#endif
log_dir = app_log_directory;
preferences_dir = app_preferences_directory;
local_data_dir = app_support_directory;
#elif defined(__WIN32__)
char file_name[MAX_PATH];
GetModuleFileName(NULL, file_name, sizeof(file_name));
char *sep = strrchr(file_name, '\\');
*sep = '\0';
default_data_dir = file_name;
char login[17];
DWORD len = 17;
bool hasName = (GetUserName((LPSTR) login, &len) == TRUE);
if (!hasName || strpbrk(login, "\\/:*?\"<>|") != NULL)
strcpy(login, "Bob User");
DirectorySpecifier legacy_data_dir = file_name;
legacy_data_dir += "Prefs";
legacy_data_dir += login;
SHGetFolderPath(NULL,
CSIDL_PERSONAL | CSIDL_FLAG_CREATE,
NULL,
0,
file_name);
local_data_dir = file_name;
local_data_dir += "AlephOne";
log_dir = local_data_dir;
#else
default_data_dir = "";
local_data_dir = "";
//#error Data file paths must be set for this platform.
#endif
#if defined(__WIN32__)
#define LIST_SEP ';'
#else
#define LIST_SEP ':'
#endif
// in case we need to redo search path later:
size_t dsp_insert_pos = data_search_path.size();
size_t dsp_delete_pos = (size_t)-1;
if (arg_directory != "")
{
default_data_dir = arg_directory;
dsp_delete_pos = data_search_path.size();
data_search_path.push_back(arg_directory);
}
const char *data_env = getenv("ALEPHONE_DATA");
if (data_env) {
// Read colon-separated list of directories
string path = data_env;
string::size_type pos;
while ((pos = path.find(LIST_SEP)) != string::npos) {
if (pos) {
string element = path.substr(0, pos);
data_search_path.push_back(element);
}
path.erase(0, pos + 1);
}
if (!path.empty())
data_search_path.push_back(path);
} else {
if (arg_directory == "")
{
dsp_delete_pos = data_search_path.size();
data_search_path.push_back(default_data_dir);
}
#if defined(__WIN32__)
data_search_path.push_back(legacy_data_dir);
#endif
data_search_path.push_back(local_data_dir);
}
// Subdirectories
#if defined(__MACH__) && defined(__APPLE__)
DirectorySpecifier legacy_preferences_dir = local_data_dir;
#elif defined(__WIN32__)
DirectorySpecifier legacy_preferences_dir = legacy_data_dir;
SHGetFolderPath(NULL,
CSIDL_LOCAL_APPDATA | CSIDL_FLAG_CREATE,
NULL,
0,
file_name);
preferences_dir = file_name;
preferences_dir += "AlephOne";
#else
preferences_dir = local_data_dir;
#endif
saved_games_dir = local_data_dir + "Saved Games";
quick_saves_dir = local_data_dir + "Quick Saves";
image_cache_dir = local_data_dir + "Image Cache";
recordings_dir = local_data_dir + "Recordings";
screenshots_dir = local_data_dir + "Screenshots";
#if defined(__APPLE__) && defined(__MACH__)
if (app_screenshots_directory)
screenshots_dir = app_screenshots_directory;
#endif
DirectorySpecifier local_mml_dir = local_data_dir + "MML";
DirectorySpecifier local_themes_dir = local_data_dir + "Themes";
// Setup resource manager
initialize_resources();
init_physics_wad_data();
initialize_fonts(false);
load_film_profile(FILM_PROFILE_DEFAULT, false);
// Parse MML files
LoadBaseMMLScripts();
// Check for presence of strings
if (!TS_IsPresent(strERRORS) || !TS_IsPresent(strFILENAMES)) {
fprintf(stderr, "Can't find required text strings (missing MML?).\n");
exit(1);
}
// Check for presence of files (one last chance to change data_search_path)
if (!have_default_files()) {
char chosen_dir[256];
if (alert_choose_scenario(chosen_dir)) {
// remove original argument (or fallback) from search path
if (dsp_delete_pos < data_search_path.size())
data_search_path.erase(data_search_path.begin() + dsp_delete_pos);
// add selected directory where command-line argument would go
data_search_path.insert(data_search_path.begin() + dsp_insert_pos, chosen_dir);
default_data_dir = chosen_dir;
// Parse MML files again, now that we have a new dir to search
initialize_fonts(false);
LoadBaseMMLScripts();
}
}
initialize_fonts(true);
Plugins::instance()->enumerate();
#if defined(__WIN32__) || (defined(__MACH__) && defined(__APPLE__))
preferences_dir.CreateDirectory();
transition_preferences(legacy_preferences_dir);
#endif
// Load preferences
initialize_preferences();
local_data_dir.CreateDirectory();
saved_games_dir.CreateDirectory();
quick_saves_dir.CreateDirectory();
{
std::string scen = Scenario::instance()->GetName();
if (scen.length())
scen.erase(std::remove_if(scen.begin(), scen.end(), char_is_not_filesafe), scen.end());
if (!scen.length())
scen = "Unknown";
quick_saves_dir += scen;
quick_saves_dir.CreateDirectory();
}
image_cache_dir.CreateDirectory();
recordings_dir.CreateDirectory();
screenshots_dir.CreateDirectory();
local_mml_dir.CreateDirectory();
local_themes_dir.CreateDirectory();
WadImageCache::instance()->initialize_cache();
#ifndef HAVE_OPENGL
graphics_preferences->screen_mode.acceleration = _no_acceleration;
#endif
if (force_fullscreen)
graphics_preferences->screen_mode.fullscreen = true;
if (force_windowed) // takes precedence over fullscreen because windowed is safer
graphics_preferences->screen_mode.fullscreen = false;
write_preferences();
Plugins::instance()->load_mml();
SDL_putenv(const_cast<char*>("SDL_VIDEO_ALLOW_SCREENSAVER=1"));
// Initialize SDL
int retval = SDL_Init(SDL_INIT_VIDEO |
(option_nosound ? 0 : SDL_INIT_AUDIO) |
(option_nojoystick ? 0 : SDL_INIT_JOYSTICK) |
(option_debug ? SDL_INIT_NOPARACHUTE : 0));
if (retval < 0)
{
fprintf(stderr, "Couldn't initialize SDL (%s)\n", SDL_GetError());
exit(1);
}
SDL_WM_SetCaption(application_name, application_name);
#if defined(HAVE_SDL_IMAGE) && (SDL_IMAGE_PATCHLEVEL >= 8)
IMG_Init(IMG_INIT_JPG | IMG_INIT_PNG);
#endif
#if defined(HAVE_SDL_IMAGE) && !(defined(__APPLE__) && defined(__MACH__))
SDL_WM_SetIcon(IMG_ReadXPMFromArray(const_cast<char**>(alephone_xpm)), 0);
#endif
atexit(shutdown_application);
#if !defined(DISABLE_NETWORKING)
// Initialize SDL_net
if (SDLNet_Init () < 0) {
fprintf (stderr, "Couldn't initialize SDL_net (%s)\n", SDLNet_GetError());
exit(1);
}
#endif
if (TTF_Init() < 0) {
fprintf (stderr, "Couldn't initialize SDL_ttf (%s)\n", TTF_GetError());
exit(1);
}
HTTPClient::Init();
// Initialize everything
mytm_initialize();
// initialize_fonts();
SoundManager::instance()->Initialize(*sound_preferences);
initialize_marathon_music_handler();
initialize_keyboard_controller();
initialize_gamma();
alephone::Screen::instance()->Initialize(&graphics_preferences->screen_mode);
initialize_marathon();
initialize_screen_drawing();
initialize_dialogs();
initialize_terminal_manager();
initialize_shape_handler();
initialize_fades();
initialize_images_manager();
load_environment_from_preferences();
initialize_game_state();
}
void shutdown_application(void)
{
// ZZZ: seem to be having weird recursive shutdown problems esp. with fullscreen modes...
static bool already_shutting_down = false;
if(already_shutting_down)
return;
already_shutting_down = true;
WadImageCache::instance()->save_cache();
close_external_resources();
restore_gamma();
#if defined(HAVE_SDL_IMAGE) && (SDL_IMAGE_PATCHLEVEL >= 8)
IMG_Quit();
#endif
#if !defined(DISABLE_NETWORKING)
SDLNet_Quit();
#endif
TTF_Quit();
SDL_Quit();
}
bool networking_available(void)
{
#if !defined(DISABLE_NETWORKING)
return true;
#else
return false;
#endif
}
static void initialize_marathon_music_handler(void)
{
FileSpecifier file;
if (get_default_music_spec(file))
Music::instance()->SetupIntroMusic(file);
}
bool quit_without_saving(void)
{
dialog d;
vertical_placer *placer = new vertical_placer;
placer->dual_add (new w_static_text("Are you sure you wish to"), d);
placer->dual_add (new w_static_text("cancel the game in progress?"), d);
placer->add (new w_spacer(), true);
horizontal_placer *button_placer = new horizontal_placer;
w_button *default_button = new w_button("YES", dialog_ok, &d);
button_placer->dual_add (default_button, d);
button_placer->dual_add (new w_button("NO", dialog_cancel, &d), d);
d.activate_widget(default_button);
placer->add(button_placer, true);
d.set_widget_placer(placer);
return d.run() == 0;
}
// ZZZ: moved level-numbers widget into sdl_widgets for a wider audience.
const int32 AllPlayableLevels = _single_player_entry_point | _multiplayer_carnage_entry_point | _multiplayer_cooperative_entry_point | _kill_the_man_with_the_ball_entry_point | _king_of_hill_entry_point | _rugby_entry_point | _capture_the_flag_entry_point;
short get_level_number_from_user(void)
{
// Get levels
vector<entry_point> levels;
if (!get_entry_points(levels, AllPlayableLevels)) {
entry_point dummy;
dummy.level_number = 0;
strcpy(dummy.level_name, "Untitled Level");
levels.push_back(dummy);
}
// Create dialog
dialog d;
vertical_placer *placer = new vertical_placer;
if (vidmasterStringSetID != -1 && TS_IsPresent(vidmasterStringSetID) && TS_CountStrings(vidmasterStringSetID) > 0) {
// if we there's a stringset present for it, load the message from there
int num_lines = TS_CountStrings(vidmasterStringSetID);
for (size_t i = 0; i < num_lines; i++) {
bool message_font_title_color = true;
const char *string = TS_GetCString(vidmasterStringSetID, i);
if (!strncmp(string, "[QUOTE]", 7)) {
string = string + 7;
message_font_title_color = false;
}
if (!strlen(string))
placer->add(new w_spacer(), true);
else if (message_font_title_color)
placer->dual_add(new w_static_text(string), d);
else
placer->dual_add(new w_static_text(string), d);
}
} else {
// no stringset or no strings in stringset - use default message
placer->dual_add(new w_static_text("Before proceeding any further, you"), d);
placer->dual_add(new w_static_text ("must take the oath of the vidmaster:"), d);
placer->add(new w_spacer(), true);
placer->dual_add(new w_static_text("\xd2I pledge to punch all switches,"), d);
placer->dual_add(new w_static_text("to never shoot where I could use grenades,"), d);
placer->dual_add(new w_static_text("to admit the existence of no level"), d);
placer->dual_add(new w_static_text("except Total Carnage,"), d);
placer->dual_add(new w_static_text("to never use Caps Lock as my \xd4run\xd5 key,"), d);
placer->dual_add(new w_static_text("and to never, ever, leave a single Bob alive.\xd3"), d);
}
placer->add(new w_spacer(), true);
placer->dual_add(new w_static_text("Start at level:"), d);
w_levels *level_w = new w_levels(levels, &d);
placer->dual_add(level_w, d);
placer->add(new w_spacer(), true);
placer->dual_add(new w_button("CANCEL", dialog_cancel, &d), d);
d.activate_widget(level_w);
d.set_widget_placer(placer);
// Run dialog
short level;
if (d.run() == 0) // OK
// Should do noncontiguous map files OK
level = levels[level_w->get_selection()].level_number;
else
level = NONE;
// Redraw main menu
update_game_window();
return level;
}
const uint32 TICKS_BETWEEN_EVENT_POLL = 167; // 6 Hz
static void main_event_loop(void)
{
uint32 last_event_poll = 0;
short game_state;
while ((game_state = get_game_state()) != _quit_game) {
uint32 cur_time = SDL_GetTicks();
bool yield_time = false;
bool poll_event = false;
switch (game_state) {
case _game_in_progress:
case _change_level:
if (Console::instance()->input_active() || cur_time - last_event_poll >= TICKS_BETWEEN_EVENT_POLL) {
poll_event = true;
last_event_poll = cur_time;
} else {
SDL_PumpEvents (); // This ensures a responsive keyboard control
}
break;
case _display_intro_screens:
case _display_main_menu:
case _display_chapter_heading:
case _display_prologue:
case _display_epilogue:
case _begin_display_of_epilogue:
case _display_credits:
case _display_intro_screens_for_demo:
case _display_quit_screens:
case _displaying_network_game_dialogs:
yield_time = interface_fade_finished();
poll_event = true;
break;
case _close_game:
case _switch_demo:
case _revert_game:
yield_time = poll_event = true;
break;
}
if (poll_event) {
global_idle_proc();
while (true) {
SDL_Event event;
event.type = SDL_NOEVENT;
SDL_PollEvent(&event);
if (yield_time) {
// The game is not in a "hot" state, yield time to other
// processes by calling SDL_Delay() but only try for a maximum
// of 30ms
int num_tries = 0;
while (event.type == SDL_NOEVENT && num_tries < 3) {
SDL_Delay(10);
SDL_PollEvent(&event);
num_tries++;
}
yield_time = false;
} else if (event.type == SDL_NOEVENT)
break;
process_event(event);
}
}
execute_timer_tasks(SDL_GetTicks());
idle_game_state(SDL_GetTicks());
if (game_state == _game_in_progress && !graphics_preferences->hog_the_cpu && (TICKS_PER_SECOND - (SDL_GetTicks() - cur_time)) > 10)
{
SDL_Delay(1);
}
}
}
static bool has_cheat_modifiers(void)
{
SDLMod m = SDL_GetModState();
#if (defined(__APPLE__) && defined(__MACH__))
return ((m & KMOD_SHIFT) && (m & KMOD_CTRL)) || ((m & KMOD_ALT) && (m & KMOD_META));
#else
return (m & KMOD_SHIFT) && (m & KMOD_CTRL) && !(m & KMOD_ALT) && !(m & KMOD_META);
#endif
}
static void process_screen_click(const SDL_Event &event)
{
int x = event.button.x, y = event.button.y;
#ifdef HAVE_OPENGL
if (OGL_IsActive())
OGL_Blitter::WindowToScreen(x, y);
#endif
portable_process_screen_click(x, y, has_cheat_modifiers());
}
static void handle_game_key(const SDL_Event &event)
{
SDLKey key = event.key.keysym.sym;
bool changed_screen_mode = false;
bool changed_prefs = false;
if (!game_is_networked && (event.key.keysym.mod & KMOD_CTRL) && CheatsActive) {
int type_of_cheat = process_keyword_key(key);
if (type_of_cheat != NONE)
handle_keyword(type_of_cheat);
}
if (Console::instance()->input_active()) {
switch(key) {
case SDLK_RETURN:
Console::instance()->enter();
break;
case SDLK_ESCAPE:
Console::instance()->abort();
break;
case SDLK_BACKSPACE:
Console::instance()->backspace();
break;
case SDLK_DELETE:
Console::instance()->del();
break;
case SDLK_UP:
Console::instance()->up_arrow();
break;
case SDLK_DOWN:
Console::instance()->down_arrow();
break;
case SDLK_LEFT:
Console::instance()->left_arrow();
break;
case SDLK_RIGHT:
Console::instance()->right_arrow();
break;
default:
if (event.key.keysym.unicode == 4) // Ctrl-D
{
Console::instance()->del();
}
else if (event.key.keysym.unicode == 8) // Crtl-H
{
Console::instance()->backspace();
}
else if (event.key.keysym.unicode == 21) // Crtl-U
{
Console::instance()->clear();
}
else if (event.key.keysym.unicode >= ' ') {
Console::instance()->key(unicode_to_mac_roman(event.key.keysym.unicode));
}
}
}
else
{
if (key == SDLK_ESCAPE) // (ZZZ) Quit gesture (now safer)
{
if(!player_controlling_game())
do_menu_item_command(mGame, iQuitGame, false);
else {
if(get_ticks_since_local_player_in_terminal() > 1 * TICKS_PER_SECOND) {
if(!game_is_networked) {
do_menu_item_command(mGame, iQuitGame, false);
}
else {
#if defined(__APPLE__) && defined(__MACH__)
screen_printf("If you wish to quit, press Command-Q");
#else
screen_printf("If you wish to quit, press Alt+Q.");
#endif
}
}
}
}
else if (key == input_preferences->shell_keycodes[_key_volume_up])
{
changed_prefs = SoundManager::instance()->AdjustVolumeUp(Sound_AdjustVolume());
}
else if (key == input_preferences->shell_keycodes[_key_volume_down])
{
changed_prefs = SoundManager::instance()->AdjustVolumeDown(Sound_AdjustVolume());
}
else if (key == input_preferences->shell_keycodes[_key_switch_view])
{
walk_player_list();
render_screen(NONE);
}
else if (key == input_preferences->shell_keycodes[_key_zoom_in])
{
if (zoom_overhead_map_in())
PlayInterfaceButtonSound(Sound_ButtonSuccess());