misc_sl.cpp

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00001 /* $Id: misc_sl.cpp 21284 2010-11-21 12:47:04Z alberth $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD 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, version 2.
00006  * OpenTTD 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.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "../stdafx.h"
00013 #include "../date_func.h"
00014 #include "../openttd.h"
00015 #include "../zoom_func.h"
00016 #include "../vehicle_func.h"
00017 #include "../window_gui.h"
00018 #include "../window_func.h"
00019 #include "../viewport_func.h"
00020 #include "../gfx_func.h"
00021 #include "../core/random_func.hpp"
00022 #include "../fios.h"
00023 
00024 #include "saveload.h"
00025 
00026 extern TileIndex _cur_tileloop_tile;
00027 extern uint16 _disaster_delay;
00028 extern byte _trees_tick_ctr;
00029 
00030 /* Keep track of current game position */
00031 int _saved_scrollpos_x;
00032 int _saved_scrollpos_y;
00033 ZoomLevelByte _saved_scrollpos_zoom;
00034 
00035 void SaveViewportBeforeSaveGame()
00036 {
00037   const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
00038 
00039   if (w != NULL) {
00040     _saved_scrollpos_x = w->viewport->scrollpos_x;
00041     _saved_scrollpos_y = w->viewport->scrollpos_y;
00042     _saved_scrollpos_zoom = w->viewport->zoom;
00043   }
00044 }
00045 
00046 void ResetViewportAfterLoadGame()
00047 {
00048   Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
00049 
00050   w->viewport->scrollpos_x = _saved_scrollpos_x;
00051   w->viewport->scrollpos_y = _saved_scrollpos_y;
00052   w->viewport->dest_scrollpos_x = _saved_scrollpos_x;
00053   w->viewport->dest_scrollpos_y = _saved_scrollpos_y;
00054 
00055   ViewPort *vp = w->viewport;
00056   vp->zoom = (ZoomLevel)min(_saved_scrollpos_zoom, ZOOM_LVL_MAX);
00057   vp->virtual_width = ScaleByZoom(vp->width, vp->zoom);
00058   vp->virtual_height = ScaleByZoom(vp->height, vp->zoom);
00059 
00060   DoZoomInOutWindow(ZOOM_NONE, w); // update button status
00061   MarkWholeScreenDirty();
00062 }
00063 
00064 
00065 static const SaveLoadGlobVarList _date_desc[] = {
00066   SLEG_CONDVAR(_date,                   SLE_FILE_U16 | SLE_VAR_I32,  0,  30),
00067   SLEG_CONDVAR(_date,                   SLE_INT32,                  31, SL_MAX_VERSION),
00068       SLEG_VAR(_date_fract,             SLE_UINT16),
00069       SLEG_VAR(_tick_counter,           SLE_UINT16),
00070       SLEG_VAR(_vehicle_id_ctr_day,     SLE_UINT16),
00071       SLEG_VAR(_age_cargo_skip_counter, SLE_UINT8),
00072   SLE_CONDNULL(1, 0, 45),
00073   SLEG_CONDVAR(_cur_tileloop_tile,      SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
00074   SLEG_CONDVAR(_cur_tileloop_tile,      SLE_UINT32,                  6, SL_MAX_VERSION),
00075       SLEG_VAR(_disaster_delay,         SLE_UINT16),
00076   SLE_CONDNULL(2, 0, 119),
00077       SLEG_VAR(_random.state[0],        SLE_UINT32),
00078       SLEG_VAR(_random.state[1],        SLE_UINT32),
00079   SLE_CONDNULL(1,  0,   9),
00080   SLE_CONDNULL(4, 10, 119),
00081       SLEG_VAR(_cur_company_tick_index, SLE_FILE_U8  | SLE_VAR_U32),
00082   SLEG_CONDVAR(_next_competitor_start,  SLE_FILE_U16 | SLE_VAR_U32,  0, 108),
00083   SLEG_CONDVAR(_next_competitor_start,  SLE_UINT32,                109, SL_MAX_VERSION),
00084       SLEG_VAR(_trees_tick_ctr,         SLE_UINT8),
00085   SLEG_CONDVAR(_pause_mode,             SLE_UINT8,                   4, SL_MAX_VERSION),
00086   SLE_CONDNULL(4, 11, 119),
00087       SLEG_END()
00088 };
00089 
00090 static const SaveLoadGlobVarList _date_check_desc[] = {
00091   SLEG_CONDVAR(_load_check_data.current_date,  SLE_FILE_U16 | SLE_VAR_I32,  0,  30),
00092   SLEG_CONDVAR(_load_check_data.current_date,  SLE_INT32,                  31, SL_MAX_VERSION),
00093       SLE_NULL(2),                       // _date_fract
00094       SLE_NULL(2),                       // _tick_counter
00095       SLE_NULL(2),                       // _vehicle_id_ctr_day
00096       SLE_NULL(1),                       // _age_cargo_skip_counter
00097   SLE_CONDNULL(1, 0, 45),
00098   SLE_CONDNULL(2, 0, 5),                 // _cur_tileloop_tile
00099   SLE_CONDNULL(4, 6, SL_MAX_VERSION),    // _cur_tileloop_tile
00100       SLE_NULL(2),                       // _disaster_delay
00101   SLE_CONDNULL(2, 0, 119),
00102       SLE_NULL(4),                       // _random.state[0]
00103       SLE_NULL(4),                       // _random.state[1]
00104   SLE_CONDNULL(1,  0,   9),
00105   SLE_CONDNULL(4, 10, 119),
00106       SLE_NULL(1),                       // _cur_company_tick_index
00107   SLE_CONDNULL(2, 0, 108),               // _next_competitor_start
00108   SLE_CONDNULL(4, 109, SL_MAX_VERSION),  // _next_competitor_start
00109       SLE_NULL(1),                       // _trees_tick_ctr
00110   SLE_CONDNULL(1, 4, SL_MAX_VERSION),    // _pause_mode
00111   SLE_CONDNULL(4, 11, 119),
00112       SLEG_END()
00113 };
00114 
00115 /* Save load date related variables as well as persistent tick counters
00116  * XXX: currently some unrelated stuff is just put here */
00117 static void SaveLoad_DATE()
00118 {
00119   SlGlobList(_date_desc);
00120 }
00121 
00122 static void Check_DATE()
00123 {
00124   SlGlobList(_date_check_desc);
00125   if (IsSavegameVersionBefore(31)) {
00126     _load_check_data.current_date += DAYS_TILL_ORIGINAL_BASE_YEAR;
00127   }
00128 }
00129 
00130 
00131 static const SaveLoadGlobVarList _view_desc[] = {
00132   SLEG_CONDVAR(_saved_scrollpos_x,    SLE_FILE_I16 | SLE_VAR_I32, 0, 5),
00133   SLEG_CONDVAR(_saved_scrollpos_x,    SLE_INT32,                  6, SL_MAX_VERSION),
00134   SLEG_CONDVAR(_saved_scrollpos_y,    SLE_FILE_I16 | SLE_VAR_I32, 0, 5),
00135   SLEG_CONDVAR(_saved_scrollpos_y,    SLE_INT32,                  6, SL_MAX_VERSION),
00136       SLEG_VAR(_saved_scrollpos_zoom, SLE_UINT8),
00137       SLEG_END()
00138 };
00139 
00140 static void SaveLoad_VIEW()
00141 {
00142   SlGlobList(_view_desc);
00143 }
00144 
00145 extern const ChunkHandler _misc_chunk_handlers[] = {
00146   { 'DATE', SaveLoad_DATE, SaveLoad_DATE, NULL, Check_DATE, CH_RIFF},
00147   { 'VIEW', SaveLoad_VIEW, SaveLoad_VIEW, NULL, NULL,       CH_RIFF | CH_LAST},
00148 };

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