--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gamelog.cpp Tue Jun 03 18:35:58 2008 +0000
@@ -0,0 +1,801 @@
+/* $Id$ */
+
+/** @file gamelog.cpp Definition of functions used for logging of important changes in the game */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "saveload.h"
+#include "core/alloc_func.hpp"
+#include "core/bitmath_func.hpp"
+#include "core/math_func.hpp"
+#include "network/core/config.h"
+#include "variables.h"
+#include "string_func.h"
+#include "settings_type.h"
+#include "newgrf_config.h"
+#include <string.h>
+#include <stdarg.h>
+#include "gamelog.h"
+#include "console_func.h"
+#include "debug.h"
+#include "rev.h"
+
+extern const uint16 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 byte _sl_minor_version; ///< the minor savegame version, DO NOT USE!
+
+/** Type of logged change */
+enum GamelogChangeType {
+ GLCT_MODE, ///< Scenario editor x Game, different landscape
+ GLCT_REVISION, ///< Changed game revision string
+ GLCT_OLDVER, ///< Loaded from savegame without logged data
+ GLCT_PATCH, ///< Non-networksafe patch value changed
+ GLCT_GRFADD, ///< Removed GRF
+ GLCT_GRFREM, ///< Added GRF
+ GLCT_GRFCOMPAT, ///< Loading compatible GRF
+ GLCT_GRFPARAM, ///< GRF parameter changed
+ GLCT_GRFMOVE, ///< GRF order changed
+ GLCT_END, ///< So we know how many GLCTs are there
+ GLCT_NONE = 0xFF, ///< In savegames, end of list
+};
+
+
+/** Contains information about one logged change */
+struct LoggedChange {
+ GamelogChangeType ct; ///< Type of change logged in this struct
+ union {
+ struct {
+ byte mode; ///< new game mode - Editor x Game
+ byte landscape; ///< landscape (temperate, arctic, ...)
+ } mode;
+ struct {
+ char text[NETWORK_REVISION_LENGTH]; ///< revision string, _openttd_revision
+ uint32 newgrf; ///< _openttd_newgrf_version
+ uint16 slver; ///< _sl_version
+ byte modified; ///< _openttd_revision_modified
+ } revision;
+ struct {
+ uint32 type; ///< type of savegame, @see SavegameType
+ uint32 version; ///< major and minor version OR ttdp version
+ } oldver;
+ GRFIdentifier grfadd; ///< ID and md5sum of added GRF
+ struct {
+ uint32 grfid; ///< ID of removed GRF
+ } grfrem;
+ GRFIdentifier grfcompat; ///< ID and new md5sum of changed GRF
+ struct {
+ uint32 grfid; ///< ID of GRF with changed parameters
+ } grfparam;
+ struct {
+ uint32 grfid; ///< ID of moved GRF
+ int32 offset; ///< offset, positive = move down
+ } grfmove;
+ struct {
+ char *name; ///< name of the patch
+ int32 oldval; ///< old value
+ int32 newval; ///< new value
+ } patch;
+ };
+};
+
+
+/** Contains information about one logged action that caused at least one logged change */
+struct LoggedAction {
+ LoggedChange *change; ///< First logged change in this action
+ uint32 changes; ///< Number of changes in this action
+ GamelogActionType at; ///< Type of action
+ uint16 tick; ///< Tick when it happened
+};
+
+static GamelogActionType _gamelog_action_type = GLAT_NONE; ///< action to record if anything changes
+
+static LoggedAction *_gamelog_action = NULL; ///< first logged action
+static uint _gamelog_actions = 0; ///< number of actions
+static LoggedAction *_current_action = NULL; ///< current action we are logging, NULL when there is no action active
+
+
+/** Stores information about new action, but doesn't allocate it
+ * Action is allocated only when there is at least one change
+ * @param at type of action
+ */
+void GamelogStartAction(GamelogActionType at)
+{
+ assert(_gamelog_action_type == GLAT_NONE); // do not allow starting new action without stopping the previous first
+ _gamelog_action_type = at;
+}
+
+/** Stops logging of any changes
+ */
+void GamelogStopAction()
+{
+ assert(_gamelog_action_type != GLAT_NONE); // nobody should try to stop if there is no action in progress
+
+ _current_action = NULL;
+ _gamelog_action_type = GLAT_NONE;
+
+ if (_debug_gamelog_level > 4) GamelogPrintDebug();
+}
+
+/** Resets and frees all memory allocated - used before loading or starting a new game
+ */
+void GamelogReset()
+{
+ assert(_gamelog_action_type == GLAT_NONE);
+
+ for (uint i = 0; i < _gamelog_actions; i++) {
+ const LoggedAction *la = &_gamelog_action[i];
+ for (uint j = 0; j < la->changes; j++) {
+ const LoggedChange *lc = &la->change[j];
+ if (lc->ct == GLCT_PATCH) free(lc->patch.name);
+ }
+ free(la->change);
+ }
+
+ free(_gamelog_action);
+
+ _gamelog_action = NULL;
+ _gamelog_actions = 0;
+ _current_action = NULL;
+}
+
+enum {
+ GAMELOG_BUF_LEN = 1024 ///< length of buffer for one line of text
+};
+
+static int _dbgofs = 0; ///< offset in current output buffer
+
+static void AddDebugText(char *buf, const char *s, ...)
+{
+ if (GAMELOG_BUF_LEN <= _dbgofs) return;
+
+ va_list va;
+
+ va_start(va, s);
+ _dbgofs += vsnprintf(buf + _dbgofs, GAMELOG_BUF_LEN - _dbgofs, s, va);
+ va_end(va);
+}
+
+
+/** Prints GRF filename if found
+ * @param grfid GRF which filename to print
+ */
+static void PrintGrfFilename(char *buf, uint grfid)
+{
+ const GRFConfig *gc = FindGRFConfig(grfid);
+
+ if (gc == NULL) return;
+
+ AddDebugText(buf, ", filename: %s", gc->filename);
+}
+
+/** Prints GRF ID, checksum and filename if found
+ * @param grfid GRF ID
+ * @param md5sum array of md5sum to print
+ */
+static void PrintGrfInfo(char *buf, uint grfid, const uint8 *md5sum)
+{
+ char txt[40];
+
+ md5sumToString(txt, lastof(txt), md5sum);
+
+ AddDebugText(buf, "GRF ID %08X, checksum %s", BSWAP32(grfid), txt);
+
+ PrintGrfFilename(buf, grfid);
+
+ return;
+}
+
+
+/** Text messages for various logged actions */
+static const char *la_text[] = {
+ "new game started",
+ "game loaded",
+ "GRF config changed",
+ "cheat was used",
+ "patch settings changed"
+};
+
+assert_compile(lengthof(la_text) == GLAT_END);
+
+
+/** Prints active gamelog */
+void GamelogPrint(GamelogPrintProc *proc)
+{
+ char buf[GAMELOG_BUF_LEN];
+
+ proc("---- gamelog start ----");
+
+ const LoggedAction *laend = &_gamelog_action[_gamelog_actions];
+
+ for (const LoggedAction *la = _gamelog_action; la != laend; la++) {
+ assert((uint)la->at < GLAT_END);
+
+ snprintf(buf, GAMELOG_BUF_LEN, "Tick %u: %s", (uint)la->tick, la_text[(uint)la->at]);
+ proc(buf);
+
+ const LoggedChange *lcend = &la->change[la->changes];
+
+ for (const LoggedChange *lc = la->change; lc != lcend; lc++) {
+ _dbgofs = 0;
+ AddDebugText(buf, " ");
+
+ switch (lc->ct) {
+ default: NOT_REACHED();
+ case GLCT_MODE:
+ AddDebugText(buf, "New game mode: %u landscape: %u",
+ (uint)lc->mode.mode, (uint)lc->mode.landscape);
+ break;
+
+ case GLCT_REVISION:
+ AddDebugText(buf, "Revision text changed to %s, savegame version %u, ",
+ lc->revision.text, lc->revision.slver);
+
+ switch (lc->revision.modified) {
+ case 0: AddDebugText(buf, "not "); break;
+ case 1: AddDebugText(buf, "maybe "); break;
+ default: break;
+ }
+
+ AddDebugText(buf, "modified, _openttd_newgrf_version = 0x%08x", lc->revision.newgrf);
+ break;
+
+ case GLCT_OLDVER:
+ AddDebugText(buf, "Conversion from ");
+ switch (lc->oldver.type) {
+ default: NOT_REACHED();
+ case SGT_OTTD:
+ AddDebugText(buf, "OTTD savegame without gamelog: version %u, %u",
+ GB(lc->oldver.version, 8, 16), GB(lc->oldver.version, 0, 8));
+ break;
+
+ case SGT_TTD:
+ AddDebugText(buf, "TTD savegame");
+ break;
+
+ case SGT_TTDP1:
+ case SGT_TTDP2:
+ AddDebugText(buf, "TTDP savegame, %s format",
+ lc->oldver.type == SGT_TTDP1 ? "old" : "new");
+ if (lc->oldver.version != 0) {
+ AddDebugText(buf, ", TTDP version %u.%u.%u.%u",
+ GB(lc->oldver.version, 24, 8), GB(lc->oldver.version, 20, 4),
+ GB(lc->oldver.version, 16, 4), GB(lc->oldver.version, 0, 16));
+ }
+ break;
+ }
+ break;
+
+ case GLCT_PATCH:
+ AddDebugText(buf, "Patch setting changed: %s : %d -> %d", lc->patch.name, lc->patch.oldval, lc->patch.newval);
+ break;
+
+ case GLCT_GRFADD:
+ AddDebugText(buf, "Added NewGRF: ");
+ PrintGrfInfo(buf, lc->grfadd.grfid, lc->grfadd.md5sum);
+ break;
+
+ case GLCT_GRFREM:
+ AddDebugText(buf, "Removed NewGRF: %08X", BSWAP32(lc->grfrem.grfid));
+ PrintGrfFilename(buf, lc->grfrem.grfid);
+ break;
+
+ case GLCT_GRFCOMPAT:
+ AddDebugText(buf, "Compatible NewGRF loaded: ");
+ PrintGrfInfo(buf, lc->grfcompat.grfid, lc->grfcompat.md5sum);
+ break;
+
+ case GLCT_GRFPARAM:
+ AddDebugText(buf, "GRF parameter changed: %08X", BSWAP32(lc->grfparam.grfid));
+ PrintGrfFilename(buf, lc->grfparam.grfid);
+ break;
+
+ case GLCT_GRFMOVE:
+ AddDebugText(buf, "GRF order changed: %08X moved %d places %s",
+ BSWAP32(lc->grfmove.grfid), abs(lc->grfmove.offset), lc->grfmove.offset >= 0 ? "down" : "up" );
+ PrintGrfFilename(buf, lc->grfmove.grfid);
+ break;
+ }
+
+ proc(buf);
+ }
+ }
+
+ proc("---- gamelog end ----");
+}
+
+
+static void GamelogPrintConsoleProc(const char *s)
+{
+ IConsolePrint(CC_WARNING, s);
+}
+
+void GamelogPrintConsole()
+{
+ GamelogPrint(&GamelogPrintConsoleProc);
+}
+
+
+static void GamelogPrintDebugProc(const char *s)
+{
+ debug_print("gamelog", s);
+}
+
+void GamelogPrintDebug()
+{
+ GamelogPrint(&GamelogPrintDebugProc);
+}
+
+
+/** Allocates new LoggedChange and new LoggedAction if needed.
+ * If there is no action active, NULL is returned.
+ * @param ct type of change
+ * @return new LoggedChange, or NULL if there is no action active
+ */
+static LoggedChange *GamelogChange(GamelogChangeType ct)
+{
+ if (_current_action == NULL) {
+ if (_gamelog_action_type == GLAT_NONE) return NULL;
+
+ _gamelog_action = ReallocT(_gamelog_action, _gamelog_actions + 1);
+ _current_action = &_gamelog_action[_gamelog_actions++];
+
+ _current_action->at = _gamelog_action_type;
+ _current_action->tick = _tick_counter;
+ _current_action->change = NULL;
+ _current_action->changes = 0;
+ }
+
+ _current_action->change = ReallocT(_current_action->change, _current_action->changes + 1);
+
+ LoggedChange *lc = &_current_action->change[_current_action->changes++];
+ lc->ct = ct;
+
+ return lc;
+}
+
+
+/** Logs a change in game revision
+ * @param revision new revision string
+ */
+void GamelogRevision()
+{
+ assert(_gamelog_action_type == GLAT_START || _gamelog_action_type == GLAT_LOAD);
+
+ LoggedChange *lc = GamelogChange(GLCT_REVISION);
+ if (lc == NULL) return;
+
+ strncpy(lc->revision.text, _openttd_revision, lengthof(lc->revision.text));
+ lc->revision.slver = SAVEGAME_VERSION;
+ lc->revision.modified = _openttd_revision_modified;
+ lc->revision.newgrf = _openttd_newgrf_version;
+}
+
+/** Logs a change in game mode (scenario editor or game)
+ */
+void GamelogMode()
+{
+ assert(_gamelog_action_type == GLAT_START || _gamelog_action_type == GLAT_LOAD || _gamelog_action_type == GLAT_CHEAT);
+
+ LoggedChange *lc = GamelogChange(GLCT_MODE);
+ if (lc == NULL) return;
+
+ lc->mode.mode = _game_mode;
+ lc->mode.landscape = _settings_game.game_creation.landscape;
+}
+
+/** Logs loading from savegame without gamelog
+ */
+void GamelogOldver()
+{
+ assert(_gamelog_action_type == GLAT_LOAD);
+
+ LoggedChange *lc = GamelogChange(GLCT_OLDVER);
+ if (lc == NULL) return;
+
+ lc->oldver.type = _savegame_type;
+ lc->oldver.version = (_savegame_type == SGT_OTTD ? ((uint32)_sl_version << 8 | _sl_minor_version) : _ttdp_version);
+}
+
+/** Logs change in game patches. Only non-networksafe patches are logged
+ * @param name patch name
+ * @param oldval old patch value
+ * @param newval new patch value
+ */
+void GamelogPatch(const char *name, int32 oldval, int32 newval)
+{
+ assert(_gamelog_action_type == GLAT_PATCH);
+
+ LoggedChange *lc = GamelogChange(GLCT_PATCH);
+ if (lc == NULL) return;
+
+ lc->patch.name = strdup(name);
+ lc->patch.oldval = oldval;
+ lc->patch.newval = newval;
+}
+
+
+/** Finds out if current revision is different than last revision stored in the savegame.
+ * Appends GLCT_REVISION when the revision string changed
+ */
+void GamelogTestRevision()
+{
+ const LoggedChange *rev = NULL;
+
+ const LoggedAction *laend = &_gamelog_action[_gamelog_actions];
+ for (const LoggedAction *la = _gamelog_action; la != laend; la++) {
+ const LoggedChange *lcend = &la->change[la->changes];
+ for (const LoggedChange *lc = la->change; lc != lcend; lc++) {
+ if (lc->ct == GLCT_REVISION) rev = lc;
+ }
+ }
+
+ if (rev == NULL || strcmp(rev->revision.text, _openttd_revision) != 0 ||
+ rev->revision.modified != _openttd_revision_modified ||
+ rev->revision.newgrf != _openttd_newgrf_version) {
+ GamelogRevision();
+ }
+}
+
+/** Finds last stored game mode or landscape.
+ * Any change is logged
+ */
+void GamelogTestMode()
+{
+ const LoggedChange *mode = NULL;
+
+ const LoggedAction *laend = &_gamelog_action[_gamelog_actions];
+ for (const LoggedAction *la = _gamelog_action; la != laend; la++) {
+ const LoggedChange *lcend = &la->change[la->changes];
+ for (const LoggedChange *lc = la->change; lc != lcend; lc++) {
+ if (lc->ct == GLCT_MODE) mode = lc;
+ }
+ }
+
+ if (mode == NULL || mode->mode.mode != _game_mode || mode->mode.landscape != _settings_game.game_creation.landscape) GamelogMode();
+}
+
+
+/** Decides if GRF should be logged
+ * @param g grf to determine
+ * @return true iff GRF is not static and is loaded
+ */
+static inline bool IsLoggableGrfConfig(const GRFConfig *g)
+{
+ return !HasBit(g->flags, GCF_STATIC) && g->status != GCS_NOT_FOUND;
+}
+
+/** Logs removal of a GRF
+ * @param grfid ID of removed GRF
+ */
+void GamelogGRFRemove(uint32 grfid)
+{
+ assert(_gamelog_action_type == GLAT_LOAD || _gamelog_action_type == GLAT_GRF);
+
+ LoggedChange *lc = GamelogChange(GLCT_GRFREM);
+ if (lc == NULL) return;
+
+ lc->grfrem.grfid = grfid;
+}
+
+/** Logs adding of a GRF
+ * @param newg added GRF
+ */
+void GamelogGRFAdd(const GRFConfig *newg)
+{
+ assert(_gamelog_action_type == GLAT_LOAD || _gamelog_action_type == GLAT_START || _gamelog_action_type == GLAT_GRF);
+
+ if (!IsLoggableGrfConfig(newg)) return;
+
+ LoggedChange *lc = GamelogChange(GLCT_GRFADD);
+ if (lc == NULL) return;
+
+ memcpy(&lc->grfadd, newg, sizeof(GRFIdentifier));
+}
+
+/** Logs loading compatible GRF
+ * (the same ID, but different MD5 hash)
+ * @param newg new (updated) GRF
+ */
+void GamelogGRFCompatible(const GRFIdentifier *newg)
+{
+ assert(_gamelog_action_type == GLAT_LOAD);
+
+ LoggedChange *lc = GamelogChange(GLCT_GRFCOMPAT);
+ if (lc == NULL) return;
+
+ memcpy(&lc->grfcompat, newg, sizeof(GRFIdentifier));
+}
+
+/** Logs changing GRF order
+ * @param grfid GRF that is moved
+ * @param offset how far it is moved, positive = moved down
+ */
+static void GamelogGRFMove(uint32 grfid, int32 offset)
+{
+ assert(_gamelog_action_type == GLAT_GRF);
+
+ LoggedChange *lc = GamelogChange(GLCT_GRFMOVE);
+ if (lc == NULL) return;
+
+ lc->grfmove.grfid = grfid;
+ lc->grfmove.offset = offset;
+}
+
+/** Logs change in GRF parameters.
+ * Details about parameters changed are not stored
+ * @param grfid ID of GRF to store
+ */
+static void GamelogGRFParameters(uint32 grfid)
+{
+ assert(_gamelog_action_type == GLAT_GRF);
+
+ LoggedChange *lc = GamelogChange(GLCT_GRFPARAM);
+ if (lc == NULL) return;
+
+ lc->grfparam.grfid = grfid;
+}
+
+/** Logs adding of list of GRFs.
+ * Useful when old savegame is loaded or when new game is started
+ * @param newg head of GRF linked list
+ */
+void GamelogGRFAddList(const GRFConfig *newg)
+{
+ assert(_gamelog_action_type == GLAT_START || _gamelog_action_type == GLAT_LOAD);
+
+ for (; newg != NULL; newg = newg->next) {
+ GamelogGRFAdd(newg);
+ }
+}
+
+/** List of GRFs using array of pointers instead of linked list */
+struct GRFList {
+ uint n;
+ const GRFConfig *grf[VARARRAY_SIZE];
+};
+
+/** Generates GRFList
+ * @param grfc head of GRF linked list
+ */
+static GRFList *GenerateGRFList(const GRFConfig *grfc)
+{
+ uint n = 0;
+ for (const GRFConfig *g = grfc; g != NULL; g = g->next) {
+ if (IsLoggableGrfConfig(g)) n++;
+ }
+
+ GRFList *list = (GRFList*)MallocT<byte>(sizeof(GRFList) + n * sizeof(GRFConfig*));
+
+ list->n = 0;
+ for (const GRFConfig *g = grfc; g != NULL; g = g->next) {
+ if (IsLoggableGrfConfig(g)) list->grf[list->n++] = g;
+ }
+
+ return list;
+}
+
+/** Compares two NewGRF lists and logs any change
+ * @param oldc original GRF list
+ * @param newc new GRF list
+ */
+void GamelogGRFUpdate(const GRFConfig *oldc, const GRFConfig *newc)
+{
+ GRFList *ol = GenerateGRFList(oldc);
+ GRFList *nl = GenerateGRFList(newc);
+
+ uint o = 0, n = 0;
+
+ while (o < ol->n && n < nl->n) {
+ const GRFConfig *og = ol->grf[o];
+ const GRFConfig *ng = nl->grf[n];
+
+ if (og->grfid != ng->grfid) {
+ uint oi, ni;
+ for (oi = 0; oi < ol->n; oi++) {
+ if (ol->grf[oi]->grfid == nl->grf[n]->grfid) break;
+ }
+ if (oi < o) {
+ /* GRF was moved, this change has been logged already */
+ n++;
+ continue;
+ }
+ if (oi == ol->n) {
+ /* GRF couldn't be found in the OLD list, GRF was ADDED */
+ GamelogGRFAdd(nl->grf[n++]);
+ continue;
+ }
+ for (ni = 0; ni < nl->n; ni++) {
+ if (nl->grf[ni]->grfid == ol->grf[o]->grfid) break;
+ }
+ if (ni < n) {
+ /* GRF was moved, this change has been logged already */
+ o++;
+ continue;
+ }
+ if (ni == nl->n) {
+ /* GRF couldn't be found in the NEW list, GRF was REMOVED */
+ GamelogGRFRemove(ol->grf[o++]->grfid);
+ continue;
+ }
+
+ /* o < oi < ol->n
+ * n < ni < nl->n */
+ assert(ni > n && ni < nl->n);
+ assert(oi > o && oi < ol->n);
+
+ ni -= n; // number of GRFs it was moved downwards
+ oi -= o; // number of GRFs it was moved upwards
+
+ if (ni >= oi) { // prefer the one that is moved further
+ /* GRF was moved down */
+ GamelogGRFMove(ol->grf[o++]->grfid, ni);
+ } else {
+ GamelogGRFMove(nl->grf[n++]->grfid, -(int)oi);
+ }
+ } else {
+ if (memcmp(og->md5sum, ng->md5sum, sizeof(og->md5sum)) != 0) {
+ /* md5sum changed, probably loading 'compatible' GRF */
+ GamelogGRFCompatible(nl->grf[n]);
+ }
+
+ if (og->num_params != ng->num_params || memcmp(og->param, ng->param, og->num_params * sizeof(og->param[0])) != 0) {
+ GamelogGRFParameters(ol->grf[o]->grfid);
+ }
+
+ o++;
+ n++;
+ }
+ }
+
+ while (o < ol->n) GamelogGRFRemove(ol->grf[o++]->grfid); // remaining GRFs were removed ...
+ while (n < nl->n) GamelogGRFAdd (nl->grf[n++]); // ... or added
+
+ free(ol);
+ free(nl);
+}
+
+
+static const SaveLoad _glog_action_desc[] = {
+ SLE_VAR(LoggedAction, tick, SLE_UINT16),
+ SLE_END()
+};
+
+static const SaveLoad _glog_mode_desc[] = {
+ SLE_VAR(LoggedChange, mode.mode, SLE_UINT8),
+ SLE_VAR(LoggedChange, mode.landscape, SLE_UINT8),
+ SLE_END()
+};
+
+static const SaveLoad _glog_revision_desc[] = {
+ SLE_ARR(LoggedChange, revision.text, SLE_UINT8, NETWORK_REVISION_LENGTH),
+ SLE_VAR(LoggedChange, revision.newgrf, SLE_UINT32),
+ SLE_VAR(LoggedChange, revision.slver, SLE_UINT16),
+ SLE_VAR(LoggedChange, revision.modified, SLE_UINT8),
+ SLE_END()
+};
+
+static const SaveLoad _glog_oldver_desc[] = {
+ SLE_VAR(LoggedChange, oldver.type, SLE_UINT32),
+ SLE_VAR(LoggedChange, oldver.version, SLE_UINT32),
+ SLE_END()
+};
+
+static const SaveLoad _glog_patch_desc[] = {
+ SLE_STR(LoggedChange, patch.name, SLE_STR, 128),
+ SLE_VAR(LoggedChange, patch.oldval, SLE_INT32),
+ SLE_VAR(LoggedChange, patch.newval, SLE_INT32),
+ SLE_END()
+};
+
+static const SaveLoad _glog_grfadd_desc[] = {
+ SLE_VAR(LoggedChange, grfadd.grfid, SLE_UINT32 ),
+ SLE_ARR(LoggedChange, grfadd.md5sum, SLE_UINT8, 16),
+ SLE_END()
+};
+
+static const SaveLoad _glog_grfrem_desc[] = {
+ SLE_VAR(LoggedChange, grfrem.grfid, SLE_UINT32),
+ SLE_END()
+};
+
+static const SaveLoad _glog_grfcompat_desc[] = {
+ SLE_VAR(LoggedChange, grfcompat.grfid, SLE_UINT32 ),
+ SLE_ARR(LoggedChange, grfcompat.md5sum, SLE_UINT8, 16),
+ SLE_END()
+};
+
+static const SaveLoad _glog_grfparam_desc[] = {
+ SLE_VAR(LoggedChange, grfparam.grfid, SLE_UINT32),
+ SLE_END()
+};
+
+static const SaveLoad _glog_grfmove_desc[] = {
+ SLE_VAR(LoggedChange, grfmove.grfid, SLE_UINT32),
+ SLE_VAR(LoggedChange, grfmove.offset, SLE_INT32),
+ SLE_END()
+};
+
+static const SaveLoad *_glog_desc[] = {
+ _glog_mode_desc,
+ _glog_revision_desc,
+ _glog_oldver_desc,
+ _glog_patch_desc,
+ _glog_grfadd_desc,
+ _glog_grfrem_desc,
+ _glog_grfcompat_desc,
+ _glog_grfparam_desc,
+ _glog_grfmove_desc
+};
+
+assert_compile(lengthof(_glog_desc) == GLCT_END);
+
+static void Load_GLOG()
+{
+ assert(_gamelog_action == NULL);
+ assert(_gamelog_actions == 0);
+
+ GamelogActionType at;
+ while ((at = (GamelogActionType)SlReadByte()) != GLAT_NONE) {
+ _gamelog_action = ReallocT(_gamelog_action, _gamelog_actions + 1);
+ LoggedAction *la = &_gamelog_action[_gamelog_actions++];
+
+ la->at = at;
+
+ SlObject(la, _glog_action_desc); // has to be saved after 'DATE'!
+ la->change = NULL;
+ la->changes = 0;
+
+ GamelogChangeType ct;
+ while ((ct = (GamelogChangeType)SlReadByte()) != GLCT_NONE) {
+ la->change = ReallocT(la->change, la->changes + 1);
+
+ LoggedChange *lc = &la->change[la->changes++];
+ lc->ct = ct;
+
+ assert((uint)ct < GLCT_END);
+
+ SlObject(lc, _glog_desc[ct]);
+ }
+ }
+}
+
+static void Save_GLOG()
+{
+ const LoggedAction *laend = &_gamelog_action[_gamelog_actions];
+ size_t length = 0;
+
+ for (const LoggedAction *la = _gamelog_action; la != laend; la++) {
+ const LoggedChange *lcend = &la->change[la->changes];
+ for (LoggedChange *lc = la->change; lc != lcend; lc++) {
+ assert((uint)lc->ct < lengthof(_glog_desc));
+ length += SlCalcObjLength(lc, _glog_desc[lc->ct]) + 1;
+ }
+ length += 4;
+ }
+ length++;
+
+ SlSetLength(length);
+
+ for (LoggedAction *la = _gamelog_action; la != laend; la++) {
+ SlWriteByte(la->at);
+ SlObject(la, _glog_action_desc);
+
+ const LoggedChange *lcend = &la->change[la->changes];
+ for (LoggedChange *lc = la->change; lc != lcend; lc++) {
+ SlWriteByte(lc->ct);
+ assert((uint)lc->ct < GLCT_END);
+ SlObject(lc, _glog_desc[lc->ct]);
+ }
+ SlWriteByte(GLCT_NONE);
+ }
+ SlWriteByte(GLAT_NONE);
+}
+
+
+extern const ChunkHandler _gamelog_chunk_handlers[] = {
+ { 'GLOG', Save_GLOG, Load_GLOG, CH_RIFF | CH_LAST }
+};