OpenTTD
misc_sl.cpp
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1 /* $Id: misc_sl.cpp 26482 2014-04-23 20:13:33Z rubidium $ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * 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.
6  * 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.
7  * 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/>.
8  */
9 
12 #include "../stdafx.h"
13 #include "../date_func.h"
14 #include "../zoom_func.h"
15 #include "../window_gui.h"
16 #include "../window_func.h"
17 #include "../viewport_func.h"
18 #include "../gfx_func.h"
19 #include "../core/random_func.hpp"
20 #include "../fios.h"
21 
22 #include "saveload.h"
23 
24 #include "../safeguards.h"
25 
26 extern TileIndex _cur_tileloop_tile;
27 extern uint16 _disaster_delay;
28 extern byte _trees_tick_ctr;
29 
30 /* Keep track of current game position */
31 int _saved_scrollpos_x;
32 int _saved_scrollpos_y;
33 ZoomLevelByte _saved_scrollpos_zoom;
34 
35 void SaveViewportBeforeSaveGame()
36 {
37  const Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
38 
39  if (w != NULL) {
40  _saved_scrollpos_x = w->viewport->scrollpos_x;
41  _saved_scrollpos_y = w->viewport->scrollpos_y;
42  _saved_scrollpos_zoom = w->viewport->zoom;
43  }
44 }
45 
46 void ResetViewportAfterLoadGame()
47 {
49 
50  w->viewport->scrollpos_x = _saved_scrollpos_x;
51  w->viewport->scrollpos_y = _saved_scrollpos_y;
52  w->viewport->dest_scrollpos_x = _saved_scrollpos_x;
53  w->viewport->dest_scrollpos_y = _saved_scrollpos_y;
54 
55  ViewPort *vp = w->viewport;
56  vp->zoom = (ZoomLevel)min(_saved_scrollpos_zoom, ZOOM_LVL_MAX);
57  vp->virtual_width = ScaleByZoom(vp->width, vp->zoom);
58  vp->virtual_height = ScaleByZoom(vp->height, vp->zoom);
59 
60  /* If zoom_max is ZOOM_LVL_MIN then the setting has not been loaded yet, therefore all levels are allowed. */
62  /* Ensure zoom level is allowed */
65  }
66 
67  DoZoomInOutWindow(ZOOM_NONE, w); // update button status
69 }
70 
72 
73 static const SaveLoadGlobVarList _date_desc[] = {
74  SLEG_CONDVAR(_date, SLE_FILE_U16 | SLE_VAR_I32, 0, 30),
75  SLEG_CONDVAR(_date, SLE_INT32, 31, SL_MAX_VERSION),
76  SLEG_VAR(_date_fract, SLE_UINT16),
77  SLEG_VAR(_tick_counter, SLE_UINT16),
78  SLE_CONDNULL(2, 0, 156), // _vehicle_id_ctr_day
79  SLEG_CONDVAR(_age_cargo_skip_counter, SLE_UINT8, 0, 161),
80  SLE_CONDNULL(1, 0, 45),
81  SLEG_CONDVAR(_cur_tileloop_tile, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
82  SLEG_CONDVAR(_cur_tileloop_tile, SLE_UINT32, 6, SL_MAX_VERSION),
83  SLEG_VAR(_disaster_delay, SLE_UINT16),
84  SLE_CONDNULL(2, 0, 119),
85  SLEG_VAR(_random.state[0], SLE_UINT32),
86  SLEG_VAR(_random.state[1], SLE_UINT32),
87  SLE_CONDNULL(1, 0, 9),
88  SLE_CONDNULL(4, 10, 119),
89  SLEG_VAR(_cur_company_tick_index, SLE_FILE_U8 | SLE_VAR_U32),
90  SLEG_CONDVAR(_next_competitor_start, SLE_FILE_U16 | SLE_VAR_U32, 0, 108),
92  SLEG_VAR(_trees_tick_ctr, SLE_UINT8),
93  SLEG_CONDVAR(_pause_mode, SLE_UINT8, 4, SL_MAX_VERSION),
94  SLE_CONDNULL(4, 11, 119),
95  SLEG_END()
96 };
97 
98 static const SaveLoadGlobVarList _date_check_desc[] = {
99  SLEG_CONDVAR(_load_check_data.current_date, SLE_FILE_U16 | SLE_VAR_I32, 0, 30),
100  SLEG_CONDVAR(_load_check_data.current_date, SLE_INT32, 31, SL_MAX_VERSION),
101  SLE_NULL(2), // _date_fract
102  SLE_NULL(2), // _tick_counter
103  SLE_CONDNULL(2, 0, 156), // _vehicle_id_ctr_day
104  SLE_CONDNULL(1, 0, 161), // _age_cargo_skip_counter
105  SLE_CONDNULL(1, 0, 45),
106  SLE_CONDNULL(2, 0, 5), // _cur_tileloop_tile
107  SLE_CONDNULL(4, 6, SL_MAX_VERSION), // _cur_tileloop_tile
108  SLE_NULL(2), // _disaster_delay
109  SLE_CONDNULL(2, 0, 119),
110  SLE_NULL(4), // _random.state[0]
111  SLE_NULL(4), // _random.state[1]
112  SLE_CONDNULL(1, 0, 9),
113  SLE_CONDNULL(4, 10, 119),
114  SLE_NULL(1), // _cur_company_tick_index
115  SLE_CONDNULL(2, 0, 108), // _next_competitor_start
116  SLE_CONDNULL(4, 109, SL_MAX_VERSION), // _next_competitor_start
117  SLE_NULL(1), // _trees_tick_ctr
118  SLE_CONDNULL(1, 4, SL_MAX_VERSION), // _pause_mode
119  SLE_CONDNULL(4, 11, 119),
120  SLEG_END()
121 };
122 
123 /* Save load date related variables as well as persistent tick counters
124  * XXX: currently some unrelated stuff is just put here */
125 static void SaveLoad_DATE()
126 {
127  SlGlobList(_date_desc);
128 }
129 
130 static void Check_DATE()
131 {
132  SlGlobList(_date_check_desc);
133  if (IsSavegameVersionBefore(31)) {
135  }
136 }
137 
138 
139 static const SaveLoadGlobVarList _view_desc[] = {
140  SLEG_CONDVAR(_saved_scrollpos_x, SLE_FILE_I16 | SLE_VAR_I32, 0, 5),
141  SLEG_CONDVAR(_saved_scrollpos_x, SLE_INT32, 6, SL_MAX_VERSION),
142  SLEG_CONDVAR(_saved_scrollpos_y, SLE_FILE_I16 | SLE_VAR_I32, 0, 5),
143  SLEG_CONDVAR(_saved_scrollpos_y, SLE_INT32, 6, SL_MAX_VERSION),
144  SLEG_VAR(_saved_scrollpos_zoom, SLE_UINT8),
145  SLEG_END()
146 };
147 
148 static void SaveLoad_VIEW()
149 {
150  SlGlobList(_view_desc);
151 }
152 
153 extern const ChunkHandler _misc_chunk_handlers[] = {
154  { 'DATE', SaveLoad_DATE, SaveLoad_DATE, NULL, Check_DATE, CH_RIFF},
155  { 'VIEW', SaveLoad_VIEW, SaveLoad_VIEW, NULL, NULL, CH_RIFF | CH_LAST},
156 };