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Codechange: Additional type safety for saveload version variables.

pull/7150/head
Peter Nelson 2019-01-29 00:56:28 +00:00 committed by PeterN
parent 9de12521ec
commit 0f37a683a2
4 changed files with 18 additions and 18 deletions
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4
src/gamelog.cpp
View File

@ -23,12 +23,12 @@
#include "safeguards.h"
extern const uint16 SAVEGAME_VERSION; ///< current savegame version
extern const SaveLoadVersion SAVEGAME_VERSION; ///< current savegame version
extern SavegameType _savegame_type; ///< type of savegame we are loading
extern uint32 _ttdp_version; ///< version of TTDP savegame (if applicable)
extern uint16 _sl_version; ///< the major savegame version identifier
extern SaveLoadVersion _sl_version; ///< the major savegame version identifier
extern byte _sl_minor_version; ///< the minor savegame version, DO NOT USE!

2
src/openttd.cpp
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@ -223,7 +223,7 @@ static void ShowHelp()
static void WriteSavegameInfo(const char *name)
{
extern uint16 _sl_version;
extern SaveLoadVersion _sl_version;
uint32 last_ottd_rev = 0;
byte ever_modified = 0;
bool removed_newgrfs = false;

12
src/saveload/saveload.cpp
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@ -53,13 +53,13 @@
#include "../safeguards.h"
extern const uint16 SAVEGAME_VERSION = SL_MAX_VERSION - 1; ///< Current savegame version of OpenTTD.
extern const SaveLoadVersion SAVEGAME_VERSION = (SaveLoadVersion)(SL_MAX_VERSION - 1); ///< Current savegame version of OpenTTD.
SavegameType _savegame_type; ///< type of savegame we are loading
FileToSaveLoad _file_to_saveload; ///< File to save or load in the openttd loop.
uint32 _ttdp_version; ///< version of TTDP savegame (if applicable)
uint16 _sl_version; ///< the major savegame version identifier
SaveLoadVersion _sl_version; ///< the major savegame version identifier
byte _sl_minor_version; ///< the minor savegame version, DO NOT USE!
char _savegame_format[8]; ///< how to compress savegames
bool _do_autosave; ///< are we doing an autosave at the moment?
@ -1915,7 +1915,7 @@ struct LZOLoadFilter : LoadFilter {
/* Check if size is bad */
((uint32*)out)[0] = size = tmp[1];
if (_sl_version != 0) {
if (_sl_version != SL_MIN_VERSION) {
tmp[0] = TO_BE32(tmp[0]);
size = TO_BE32(size);
}
@ -2562,7 +2562,7 @@ static SaveOrLoadResult DoLoad(LoadFilter *reader, bool load_check)
if (fmt == endof(_saveload_formats)) {
DEBUG(sl, 0, "Unknown savegame type, trying to load it as the buggy format");
_sl.lf->Reset();
_sl_version = 0;
_sl_version = SL_MIN_VERSION;
_sl_minor_version = 0;
/* Try to find the LZO savegame format; it uses 'OTTD' as tag. */
@ -2580,7 +2580,7 @@ static SaveOrLoadResult DoLoad(LoadFilter *reader, bool load_check)
if (fmt->tag == hdr[0]) {
/* check version number */
_sl_version = TO_BE32(hdr[1]) >> 16;
_sl_version = (SaveLoadVersion)(TO_BE32(hdr[1]) >> 16);
/* Minor is not used anymore from version 18.0, but it is still needed
* in versions before that (4 cases) which can't be removed easy.
* Therefore it is loaded, but never saved (or, it saves a 0 in any scenario). */
@ -2721,7 +2721,7 @@ SaveOrLoadResult SaveOrLoad(const char *filename, SaveLoadOperation fop, Detaile
ClearGRFConfigList(&_grfconfig);
GamelogReset();
if (!LoadOldSaveGame(filename)) return SL_REINIT;
_sl_version = 0;
_sl_version = SL_MIN_VERSION;
_sl_minor_version = 0;
GamelogStartAction(GLAT_LOAD);
if (!AfterLoadGame()) {

4
src/saveload/saveload.h
View File

@ -750,7 +750,7 @@ typedef SaveLoad SaveLoadGlobVarList;
*/
static inline bool IsSavegameVersionBefore(SaveLoadVersion major, byte minor = 0)
{
extern uint16 _sl_version;
extern SaveLoadVersion _sl_version;
extern byte _sl_minor_version;
return _sl_version < major || (minor > 0 && _sl_version == major && _sl_minor_version < minor);
}
@ -764,7 +764,7 @@ static inline bool IsSavegameVersionBefore(SaveLoadVersion major, byte minor = 0
*/
static inline bool SlIsObjectCurrentlyValid(SaveLoadVersion version_from, SaveLoadVersion version_to)
{
extern const uint16 SAVEGAME_VERSION;
extern const SaveLoadVersion SAVEGAME_VERSION;
if (SAVEGAME_VERSION < version_from || SAVEGAME_VERSION >= version_to) return false;
return true;