mirror of
https://github.com/vcmi/vcmi.git
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695 lines
21 KiB
C++
695 lines
21 KiB
C++
#pragma once
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/*
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* Global.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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/* ---------------------------------------------------------------------------- */
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/* Compiler detection */
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/* ---------------------------------------------------------------------------- */
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// Fixed width bool data type is important for serialization
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static_assert(sizeof(bool) == 1, "Bool needs to be 1 byte in size.");
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#ifdef __GNUC__
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# define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__ * 10 + __GNUC_PATCHLEVEL__)
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#endif
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#if !defined(__clang__) && defined(__GNUC__) && (GCC_VERSION < 470)
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# error VCMI requires at least gcc-4.7.2 for successful compilation or clang-3.1. Please update your compiler
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#endif
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#if defined(__GNUC__) && (GCC_VERSION == 470 || GCC_VERSION == 471)
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# error This GCC version has buggy std::array::at version and should not be used. Please update to 4.7.2 or later
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#endif
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/* ---------------------------------------------------------------------------- */
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/* Suppress some compiler warnings */
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/* ---------------------------------------------------------------------------- */
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#ifdef _MSC_VER
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# pragma warning (disable : 4800 ) /* disable conversion to bool warning -- I think it's intended in all places */
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#endif
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/* ---------------------------------------------------------------------------- */
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/* System detection. */
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/* ---------------------------------------------------------------------------- */
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// Based on: http://sourceforge.net/p/predef/wiki/OperatingSystems/
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// and on: http://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor
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// TODO?: Should be moved to vstd\os_detect.h (and then included by Global.h)
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#ifdef _WIN16 // Defined for 16-bit environments
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# error "16-bit Windows isn't supported"
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#elif defined(_WIN64) // Defined for 64-bit environments
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# define VCMI_WINDOWS
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# define VCMI_WINDOWS_64
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#elif defined(_WIN32) // Defined for both 32-bit and 64-bit environments
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# define VCMI_WINDOWS
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# define VCMI_WINDOWS_32
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#elif defined(_WIN32_WCE)
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# error "Windows CE isn't supported"
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#elif defined(__linux__) || defined(__gnu_linux__) || defined(linux) || defined(__linux)
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# define VCMI_UNIX
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# define VCMI_XDG
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# ifdef __ANDROID__
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# define VCMI_ANDROID
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# endif
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#elif defined(__FreeBSD_kernel__) || defined(__FreeBSD__)
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# define VCMI_UNIX
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# define VCMI_XDG
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# define VCMI_FREEBSD
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#elif defined(__GNU__) || defined(__gnu_hurd__) || (defined(__MACH__) && !defined(__APPLE__))
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# define VCMI_UNIX
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# define VCMI_XDG
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# define VCMI_HURD
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#elif defined(__APPLE__) && defined(__MACH__)
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# define VCMI_UNIX
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# define VCMI_APPLE
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# include "TargetConditionals.h"
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# if TARGET_IPHONE_SIMULATOR
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# define VCMI_IOS
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# define VCMI_IOS_SIM
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# elif TARGET_OS_IPHONE
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# define VCMI_IOS
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# elif TARGET_OS_MAC
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# define VCMI_MAC
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# else
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//# warning "Unknown Apple target."?
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# endif
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#else
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# error "VCMI supports only Windows, OSX, Linux and Android targets"
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#endif
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#ifdef VCMI_IOS
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# error "iOS system isn't yet supported."
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#endif
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/* ---------------------------------------------------------------------------- */
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/* Commonly used C++, Boost headers */
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/* ---------------------------------------------------------------------------- */
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#ifdef VCMI_WINDOWS
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# define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers - delete this line if something is missing.
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# define NOMINMAX // Exclude min/max macros from <Windows.h>. Use std::[min/max] from <algorithm> instead.
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#endif
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/* ---------------------------------------------------------------------------- */
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/* A macro to force inlining some of our functions */
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/* ---------------------------------------------------------------------------- */
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// Compiler (at least MSVC) is not so smart here-> without that displaying is MUCH slower
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#ifdef _MSC_VER
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# define STRONG_INLINE __forceinline
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#elif __GNUC__
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# define STRONG_INLINE inline __attribute__((always_inline))
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#else
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# define STRONG_INLINE inline
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#endif
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#define _USE_MATH_DEFINES
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#include <cstdio>
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#include <stdio.h>
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#include <algorithm>
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#include <array>
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#include <cassert>
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#include <climits>
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#include <cmath>
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#include <cstdlib>
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#include <functional>
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#include <fstream>
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#include <iomanip>
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#include <iostream>
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#include <map>
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#include <memory>
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#include <numeric>
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#include <queue>
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#include <random>
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#include <set>
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#include <sstream>
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#include <string>
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#include <unordered_set>
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#include <unordered_map>
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#include <utility>
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#include <vector>
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//The only available version is 3, as of Boost 1.50
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#include <boost/version.hpp>
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#define BOOST_FILESYSTEM_VERSION 3
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#if BOOST_VERSION > 105000
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# define BOOST_THREAD_VERSION 3
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#endif
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#define BOOST_THREAD_DONT_PROVIDE_THREAD_DESTRUCTOR_CALLS_TERMINATE_IF_JOINABLE 1
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#define BOOST_BIND_NO_PLACEHOLDERS
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#include <boost/algorithm/string.hpp>
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#include <boost/cstdint.hpp>
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#include <boost/current_function.hpp>
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#include <boost/crc.hpp>
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#include <boost/date_time/posix_time/posix_time.hpp>
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#include <boost/date_time/posix_time/posix_time_io.hpp>
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#include <boost/filesystem.hpp>
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#include <boost/filesystem/path.hpp>
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#include <boost/filesystem/fstream.hpp>
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#include <boost/format.hpp>
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#include <boost/functional/hash.hpp>
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#include <boost/lexical_cast.hpp>
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#ifndef VCMI_ANDROID
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#include <boost/locale/generator.hpp>
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#endif
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#include <boost/logic/tribool.hpp>
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#include <boost/optional.hpp>
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#include <boost/optional/optional_io.hpp>
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#include <boost/program_options.hpp>
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#include <boost/range/adaptor/filtered.hpp>
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#include <boost/range/adaptor/reversed.hpp>
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#include <boost/range/algorithm.hpp>
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#include <boost/thread.hpp>
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#include <boost/variant.hpp>
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#include <boost/math/special_functions/round.hpp>
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#include <boost/multi_array.hpp>
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#ifndef M_PI
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# define M_PI 3.14159265358979323846
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#endif
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/* ---------------------------------------------------------------------------- */
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/* Usings */
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/* ---------------------------------------------------------------------------- */
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using std::shared_ptr;
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using std::unique_ptr;
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using std::make_shared;
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using namespace std::placeholders;
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namespace range = boost::range;
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/* ---------------------------------------------------------------------------- */
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/* Typedefs */
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/* ---------------------------------------------------------------------------- */
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// Integral data types
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typedef boost::uint64_t ui64; //unsigned int 64 bits (8 bytes)
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typedef boost::uint32_t ui32; //unsigned int 32 bits (4 bytes)
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typedef boost::uint16_t ui16; //unsigned int 16 bits (2 bytes)
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typedef boost::uint8_t ui8; //unsigned int 8 bits (1 byte)
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typedef boost::int64_t si64; //signed int 64 bits (8 bytes)
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typedef boost::int32_t si32; //signed int 32 bits (4 bytes)
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typedef boost::int16_t si16; //signed int 16 bits (2 bytes)
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typedef boost::int8_t si8; //signed int 8 bits (1 byte)
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// Lock typedefs
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typedef boost::lock_guard<boost::mutex> TLockGuard;
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typedef boost::lock_guard<boost::recursive_mutex> TLockGuardRec;
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/* ---------------------------------------------------------------------------- */
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/* Macros */
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/* ---------------------------------------------------------------------------- */
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// Import + Export macro declarations
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#ifdef VCMI_WINDOWS
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# ifdef __GNUC__
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# define DLL_IMPORT __attribute__((dllimport))
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# define DLL_EXPORT __attribute__((dllexport))
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# else
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# define DLL_IMPORT __declspec(dllimport)
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# define DLL_EXPORT __declspec(dllexport)
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# endif
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# define ELF_VISIBILITY
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#else
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# ifdef __GNUC__
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# define DLL_IMPORT __attribute__ ((visibility("default")))
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# define DLL_EXPORT __attribute__ ((visibility("default")))
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# define ELF_VISIBILITY __attribute__ ((visibility("default")))
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# define ELF_VISIBILITY __attribute__ ((visibility("default")))
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# endif
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#endif
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#ifdef VCMI_DLL
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# define DLL_LINKAGE DLL_EXPORT
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#else
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# define DLL_LINKAGE DLL_IMPORT
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#endif
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#define THROW_FORMAT(message, formatting_elems) throw std::runtime_error(boost::str(boost::format(message) % formatting_elems))
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#define ASSERT_IF_CALLED_WITH_PLAYER if(!player) {logGlobal->errorStream() << BOOST_CURRENT_FUNCTION; assert(0);}
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// can be used for counting arrays
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template<typename T, size_t N> char (&_ArrayCountObj(const T (&)[N]))[N];
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#define ARRAY_COUNT(arr) (sizeof(_ArrayCountObj(arr)))
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// should be used for variables that becomes unused in release builds (e.g. only used for assert checks)
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#define UNUSED(VAR) ((void)VAR)
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/* ---------------------------------------------------------------------------- */
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/* VCMI standard library */
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/* ---------------------------------------------------------------------------- */
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#include "lib/logging/CLogger.h"
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void inline handleException()
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{
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try
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{
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throw;
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}
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catch(const std::exception & ex)
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{
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logGlobal->errorStream() << ex.what();
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}
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catch(const std::string & ex)
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{
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logGlobal->errorStream() << ex;
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}
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catch(...)
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{
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logGlobal->errorStream() << "Sorry, caught unknown exception type. No more info available.";
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}
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}
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template<typename T>
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std::ostream & operator<<(std::ostream & out, const boost::optional<T> & opt)
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{
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if(opt) return out << *opt;
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else return out << "empty";
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}
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template<typename T>
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std::ostream & operator<<(std::ostream & out, const std::vector<T> & container)
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{
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out << "[";
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for(auto it = container.begin(); it != container.end(); ++it)
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{
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out << *it;
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if(std::prev(container.end()) != it) out << ", ";
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}
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return out << "]";
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}
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namespace vstd
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{
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// combine hashes. Present in boost but not in std
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template <class T>
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inline void hash_combine(std::size_t& seed, const T& v)
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{
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std::hash<T> hasher;
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seed ^= hasher(v) + 0x9e3779b9 + (seed<<6) + (seed>>2);
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}
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//returns true if container c contains item i
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template <typename Container, typename Item>
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bool contains(const Container & c, const Item &i)
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{
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return std::find(std::begin(c), std::end(c),i) != std::end(c);
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}
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//returns true if container c contains item i
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template <typename Container, typename Pred>
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bool contains_if(const Container & c, Pred p)
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{
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return std::find_if(std::begin(c), std::end(c), p) != std::end(c);
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}
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//returns true if map c contains item i
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template <typename V, typename Item, typename Item2>
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bool contains(const std::map<Item,V> & c, const Item2 &i)
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{
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return c.find(i)!=c.end();
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}
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//returns true if unordered set c contains item i
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template <typename Item>
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bool contains(const std::unordered_set<Item> & c, const Item &i)
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{
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return c.find(i)!=c.end();
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}
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template <typename V, typename Item, typename Item2>
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bool contains(const std::unordered_map<Item,V> & c, const Item2 &i)
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{
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return c.find(i)!=c.end();
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}
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//returns position of first element in vector c equal to s, if there is no such element, -1 is returned
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template <typename Container, typename T2>
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int find_pos(const Container & c, const T2 &s)
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{
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size_t i=0;
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for (auto iter = std::begin(c); iter != std::end(c); iter++, i++)
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if(*iter == s)
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return i;
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return -1;
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}
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//Func f tells if element matches
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template <typename Container, typename Func>
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int find_pos_if(const Container & c, const Func &f)
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{
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auto ret = boost::range::find_if(c, f);
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if(ret != std::end(c))
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return std::distance(std::begin(c), ret);
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return -1;
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}
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//returns iterator to the given element if present in container, end() if not
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template <typename Container, typename Item>
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typename Container::iterator find(Container & c, const Item &i)
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{
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return std::find(c.begin(),c.end(),i);
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}
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//returns const iterator to the given element if present in container, end() if not
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template <typename Container, typename Item>
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typename Container::const_iterator find(const Container & c, const Item &i)
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{
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return std::find(c.begin(),c.end(),i);
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}
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//removes element i from container c, returns false if c does not contain i
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template <typename Container, typename Item>
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typename Container::size_type operator-=(Container &c, const Item &i)
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{
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typename Container::iterator itr = find(c,i);
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if(itr == c.end())
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return false;
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c.erase(itr);
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return true;
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}
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//assigns greater of (a, b) to a and returns maximum of (a, b)
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template <typename t1, typename t2>
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t1 &amax(t1 &a, const t2 &b)
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{
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if(a >= b)
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return a;
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else
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{
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a = b;
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return a;
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}
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}
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//assigns smaller of (a, b) to a and returns minimum of (a, b)
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template <typename t1, typename t2>
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t1 &amin(t1 &a, const t2 &b)
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{
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if(a <= b)
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return a;
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else
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{
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a = b;
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return a;
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}
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}
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//makes a to fit the range <b, c>
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template <typename t1, typename t2, typename t3>
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t1 &abetween(t1 &a, const t2 &b, const t3 &c)
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{
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amax(a,b);
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amin(a,c);
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return a;
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}
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//checks if a is between b and c
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template <typename t1, typename t2, typename t3>
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bool isbetween(const t1 &value, const t2 &min, const t3 &max)
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{
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return value > min && value < max;
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}
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//checks if a is within b and c
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template <typename t1, typename t2, typename t3>
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bool iswithin(const t1 &value, const t2 &min, const t3 &max)
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{
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return value >= min && value <= max;
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}
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template <typename t1, typename t2>
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struct assigner
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{
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public:
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t1 &op1;
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t2 op2;
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assigner(t1 &a1, const t2 & a2)
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:op1(a1), op2(a2)
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{}
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void operator()()
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{
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op1 = op2;
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}
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};
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// Assigns value a2 to a1. The point of time of the real operation can be controlled
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// with the () operator.
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template <typename t1, typename t2>
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assigner<t1,t2> assigno(t1 &a1, const t2 &a2)
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{
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return assigner<t1,t2>(a1,a2);
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}
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//deleted pointer and sets it to nullptr
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template <typename T>
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void clear_pointer(T* &ptr)
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{
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delete ptr;
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ptr = nullptr;
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}
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#if _MSC_VER >= 1800
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using std::make_unique;
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#else
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template<typename T>
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std::unique_ptr<T> make_unique()
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{
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return std::unique_ptr<T>(new T());
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}
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template<typename T, typename Arg1>
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std::unique_ptr<T> make_unique(Arg1 &&arg1)
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{
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return std::unique_ptr<T>(new T(std::forward<Arg1>(arg1)));
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}
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template<typename T, typename Arg1, typename Arg2>
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std::unique_ptr<T> make_unique(Arg1 &&arg1, Arg2 &&arg2)
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{
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return std::unique_ptr<T>(new T(std::forward<Arg1>(arg1), std::forward<Arg2>(arg2)));
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}
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template<typename T, typename Arg1, typename Arg2, typename Arg3>
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std::unique_ptr<T> make_unique(Arg1 &&arg1, Arg2 &&arg2, Arg3 &&arg3)
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{
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return std::unique_ptr<T>(new T(std::forward<Arg1>(arg1), std::forward<Arg2>(arg2), std::forward<Arg3>(arg3)));
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}
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template<typename T, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
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std::unique_ptr<T> make_unique(Arg1 &&arg1, Arg2 &&arg2, Arg3 &&arg3, Arg4 &&arg4)
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{
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return std::unique_ptr<T>(new T(std::forward<Arg1>(arg1), std::forward<Arg2>(arg2), std::forward<Arg3>(arg3), std::forward<Arg4>(arg4)));
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}
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#endif
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template <typename Container>
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typename Container::const_reference circularAt(const Container &r, size_t index)
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{
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assert(r.size());
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index %= r.size();
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auto itr = std::begin(r);
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std::advance(itr, index);
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return *itr;
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}
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template<typename Range, typename Predicate>
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void erase_if(Range &vec, Predicate pred)
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{
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vec.erase(boost::remove_if(vec, pred),vec.end());
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}
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template<typename Elem, typename Predicate>
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void erase_if(std::set<Elem> &setContainer, Predicate pred)
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{
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auto itr = setContainer.begin();
|
|
auto endItr = setContainer.end();
|
|
while(itr != endItr)
|
|
{
|
|
auto tmpItr = itr++;
|
|
if(pred(*tmpItr))
|
|
setContainer.erase(tmpItr);
|
|
}
|
|
}
|
|
|
|
//works for map and std::map, maybe something else
|
|
template<typename Key, typename Val, typename Predicate>
|
|
void erase_if(std::map<Key, Val> &container, Predicate pred)
|
|
{
|
|
auto itr = container.begin();
|
|
auto endItr = container.end();
|
|
while(itr != endItr)
|
|
{
|
|
auto tmpItr = itr++;
|
|
if(pred(*tmpItr))
|
|
container.erase(tmpItr);
|
|
}
|
|
}
|
|
|
|
template<typename InputRange, typename OutputIterator, typename Predicate>
|
|
OutputIterator copy_if(const InputRange &input, OutputIterator result, Predicate pred)
|
|
{
|
|
return std::copy_if(boost::const_begin(input), std::end(input), result, pred);
|
|
}
|
|
|
|
template <typename Container>
|
|
std::insert_iterator<Container> set_inserter(Container &c)
|
|
{
|
|
return std::inserter(c, c.end());
|
|
}
|
|
|
|
//Returns iterator to the element for which the value of ValueFunction is minimal
|
|
template<class ForwardRange, class ValueFunction>
|
|
auto minElementByFun(const ForwardRange& rng, ValueFunction vf) -> decltype(std::begin(rng))
|
|
{
|
|
/* Clang crashes when instantiating this function template and having PCH compilation enabled.
|
|
* There is a bug report here: http://llvm.org/bugs/show_bug.cgi?id=18744
|
|
* Current bugfix is to don't use a typedef for decltype(*std::begin(rng)) and to use decltype
|
|
* directly for both function parameters.
|
|
*/
|
|
return boost::min_element(rng, [&] (decltype(*std::begin(rng)) lhs, decltype(*std::begin(rng)) rhs) -> bool
|
|
{
|
|
return vf(lhs) < vf(rhs);
|
|
});
|
|
}
|
|
|
|
//Returns iterator to the element for which the value of ValueFunction is maximal
|
|
template<class ForwardRange, class ValueFunction>
|
|
auto maxElementByFun(const ForwardRange& rng, ValueFunction vf) -> decltype(std::begin(rng))
|
|
{
|
|
/* Clang crashes when instantiating this function template and having PCH compilation enabled.
|
|
* There is a bug report here: http://llvm.org/bugs/show_bug.cgi?id=18744
|
|
* Current bugfix is to don't use a typedef for decltype(*std::begin(rng)) and to use decltype
|
|
* directly for both function parameters.
|
|
*/
|
|
return boost::max_element(rng, [&] (decltype(*std::begin(rng)) lhs, decltype(*std::begin(rng)) rhs) -> bool
|
|
{
|
|
return vf(lhs) < vf(rhs);
|
|
});
|
|
}
|
|
|
|
template<typename T>
|
|
void advance(T &obj, int change)
|
|
{
|
|
obj = (T)(((int)obj) + change);
|
|
}
|
|
|
|
template <typename Container>
|
|
typename Container::value_type backOrNull(const Container &c) //returns last element of container or nullptr if it is empty (to be used with containers of pointers)
|
|
{
|
|
if(c.size())
|
|
return c.back();
|
|
else
|
|
return typename Container::value_type();
|
|
}
|
|
|
|
template <typename Container>
|
|
typename Container::value_type frontOrNull(const Container &c) //returns first element of container or nullptr if it is empty (to be used with containers of pointers)
|
|
{
|
|
if(c.size())
|
|
return c.front();
|
|
else
|
|
return nullptr;
|
|
}
|
|
|
|
template <typename Container, typename Index>
|
|
bool isValidIndex(const Container &c, Index i)
|
|
{
|
|
return i >= 0 && i < c.size();
|
|
}
|
|
|
|
template <typename Container, typename Index>
|
|
boost::optional<typename Container::const_reference> tryAt(const Container &c, Index i)
|
|
{
|
|
if(isValidIndex(c, i))
|
|
{
|
|
auto itr = c.begin();
|
|
std::advance(itr, i);
|
|
return *itr;
|
|
}
|
|
return boost::none;
|
|
}
|
|
|
|
template <typename Container, typename Pred>
|
|
static boost::optional<typename Container::const_reference> tryFindIf(const Container &r, const Pred &t)
|
|
{
|
|
auto pos = range::find_if(r, t);
|
|
if(pos == boost::end(r))
|
|
return boost::none;
|
|
else
|
|
return *pos;
|
|
}
|
|
|
|
template <typename Container>
|
|
typename Container::const_reference atOrDefault(const Container &r, size_t index, const typename Container::const_reference &defaultValue)
|
|
{
|
|
if(index < r.size())
|
|
return r[index];
|
|
|
|
return defaultValue;
|
|
}
|
|
|
|
template <typename Container, typename Item>
|
|
bool erase_if_present(Container &c, const Item &item)
|
|
{
|
|
auto i = std::find(c.begin(), c.end(), item);
|
|
if (i != c.end())
|
|
{
|
|
c.erase(i);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
template <typename V, typename Item, typename Item2>
|
|
bool erase_if_present(std::map<Item,V> & c, const Item2 &item)
|
|
{
|
|
auto i = c.find(item);
|
|
if (i != c.end())
|
|
{
|
|
c.erase(i);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
template <typename Container, typename Pred>
|
|
void erase(Container &c, Pred pred)
|
|
{
|
|
c.erase(boost::remove_if(c, pred), c.end());
|
|
}
|
|
|
|
template<typename T>
|
|
void removeDuplicates(std::vector<T> &vec)
|
|
{
|
|
boost::sort(vec);
|
|
vec.erase(std::unique(vec.begin(), vec.end()), vec.end());
|
|
}
|
|
|
|
template <typename T>
|
|
void concatenate(std::vector<T> &dest, const std::vector<T> &src)
|
|
{
|
|
dest.reserve(dest.size() + src.size());
|
|
dest.insert(dest.end(), src.begin(), src.end());
|
|
}
|
|
|
|
template <typename T>
|
|
std::vector<T> intersection(std::vector<T> &v1, std::vector<T> &v2)
|
|
{
|
|
std::vector<T> v3;
|
|
std::sort(v1.begin(), v1.end());
|
|
std::sort(v2.begin(), v2.end());
|
|
std::set_intersection(v1.begin(), v1.end(), v2.begin(), v2.end(), std::back_inserter(v3));
|
|
return v3;
|
|
}
|
|
|
|
using boost::math::round;
|
|
}
|
|
using vstd::operator-=;
|
|
using vstd::make_unique;
|