src/cheat_gui.cpp

   1 /* $Id$ */
   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
  10 /** @file cheat_gui.cpp GUI related to cheating. */
  11
  12 #include "stdafx.h"
  13 #include "command_func.h"
  14 #include "cheat_type.h"
  15 #include "company_base.h"
  16 #include "company_func.h"
  17 #include "date_func.h"
  18 #include "saveload/saveload.h"
  19 #include "textbuf_gui.h"
  20 #include "window_gui.h"
  21 #include "string.h"
  22 #include "strings_func.h"
  23 #include "window_func.h"
  24 #include "rail_gui.h"
  25 #include "settings_gui.h"
  26 #include "company_gui.h"
  27 #include "linkgraph/linkgraphschedule.h"
  28 #include "map/zoneheight.h"
  29 #include "newgrf.h"
  30 #include "error.h"
  31
  32 #include "widgets/cheat_widget.h"
  33
  34 #include "table/sprites.h"
  35
  36
  37 /**
  38  * The 'amount' to cheat with.
  39  * This variable is semantically a constant value, but because the cheat
  40  * code requires to be able to write to the variable it is not constified.
  41  */
  42 static int32 _money_cheat_amount = 10000000;
  43
  44 /**
  45  * Handle cheating of money.
  46  * Note that the amount of money of a company must be changed through a command
  47  * rather than by setting a variable. Since the cheat data structure expects a
  48  * variable, the amount of given/taken money is used for this purpose.
  49  * @param p1 not used.
  50  * @param p2 is -1 or +1 (down/up)
  51  * @return Amount of money cheat.
  52  */
  53 static int32 ClickMoneyCheat(int32 p1, int32 p2)
  54 {
  55         DoCommandP(0, (uint32)(p2 * _money_cheat_amount), 0, CMD_MONEY_CHEAT);
  56         return _money_cheat_amount;
  57 }
  58
  59 /**
  60  * Handle changing of company.
  61  * @param p1 company to set to
  62  * @param p2 is -1 or +1 (down/up)
  63  * @return The new company.
  64  */
  65 static int32 ClickChangeCompanyCheat(int32 p1, int32 p2)
  66 {
  67         while ((uint)p1 < Company::GetPoolSize()) {
  68                 if (Company::IsValidID((CompanyID)p1)) {
  69                         SetLocalCompany((CompanyID)p1);
  70                         return _local_company;
  71                 }
  72                 p1 += p2;
  73         }
  74
  75         return _local_company;
  76 }
  77
  78 /**
  79  * Allow (or disallow) changing production of all industries.
  80  * @param p1 new value
  81  * @param p2 unused
  82  * @return New value allowing change of industry production.
  83  */
  84 static int32 ClickSetProdCheat(int32 p1, int32 p2)
  85 {
  86         _cheats.setup_prod.value = (p1 != 0);
  87         InvalidateWindowClassesData(WC_INDUSTRY_VIEW);
  88         return _cheats.setup_prod.value;
  89 }
  90
  91 extern void EnginesMonthlyLoop();
  92
  93 /**
  94  * Handle changing of the current year.
  95  * @param p1 Unused.
  96  * @param p2 +1 (increase) or -1 (decrease).
  97  * @return New year.
  98  */
  99 static int32 ClickChangeDateCheat(int32 p1, int32 p2)
 100 {
 101         YearMonthDay ymd;
 102         ConvertDateToYMD(_date, &ymd);
 103
 104         p1 = Clamp(p1, MIN_YEAR, MAX_YEAR);
 105         if (p1 == _cur_year) return _cur_year;
 106
 107         Date new_date = ConvertYMDToDate(p1, ymd.month, ymd.day);
 108         LinkGraphSchedule::instance.ShiftDates(new_date - _date);
 109         SetDate(new_date, _date_fract);
 110         EnginesMonthlyLoop();
 111         SetWindowDirty(WC_STATUS_BAR, 0);
 112         InvalidateWindowClassesData(WC_BUILD_STATION, 0);
 113         InvalidateWindowClassesData(WC_BUILD_OBJECT, 0);
 114         ResetSignalVariant();
 115         return _cur_year;
 116 }
 117
 118 /**
 119  * Allow (or disallow) a change of the maximum allowed heightlevel.
 120  * @param p1 new value
 121  * @param p2 unused
 122  * @return New value (or unchanged old value) of the maximum
 123  *         allowed heightlevel value.
 124  */
 125 static int32 ClickChangeMaxHlCheat(int32 p1, int32 p2)
 126 {
 127         p1 = Clamp(p1, MIN_MAX_HEIGHTLEVEL, MAX_MAX_HEIGHTLEVEL);
 128
 129         /* Check if at least one mountain on the map is higher than the new value.
 130          * If yes, disallow the change. */
 131         for (TileIndex t = 0; t < MapSize(); t++) {
 132                 if ((int32)TileHeight(t) > p1) {
 133                         ShowErrorMessage(STR_CONFIG_SETTING_TOO_HIGH_MOUNTAIN, INVALID_STRING_ID, WL_ERROR);
 134                         /* Return old, unchanged value */
 135                         return _settings_game.construction.max_heightlevel;
 136                 }
 137         }
 138
 139         /* Execute the change and reload GRF Data */
 140         _settings_game.construction.max_heightlevel = p1;
 141         ReloadNewGRFData();
 142
 143         /* The smallmap uses an index from heightlevels to colours. Trigger rebuilding it. */
 144         InvalidateWindowClassesData(WC_SMALLMAP, 2);
 145
 146         return _settings_game.construction.max_heightlevel;
 147 }
 148
 149 /** Available cheats. */
 150 enum CheatNumbers {
 151         CHT_MONEY,           ///< Change amount of money.
 152         CHT_CHANGE_COMPANY,  ///< Switch company.
 153         CHT_EXTRA_DYNAMITE,  ///< Dynamite anything.
 154         CHT_CROSSINGTUNNELS, ///< Allow tunnels to cross each other.
 155         CHT_NO_JETCRASH,     ///< Disable jet-airplane crashes.
 156         CHT_SETUP_PROD,      ///< Allow manually editing of industry production.
 157         CHT_EDIT_MAX_HL,     ///< Edit maximum allowed heightlevel
 158         CHT_CHANGE_DATE,     ///< Do time traveling.
 159
 160         CHT_NUM_CHEATS,      ///< Number of cheats.
 161 };
 162
 163 /**
 164  * Signature of handler function when user clicks at a cheat.
 165  * @param p1 The new value.
 166  * @param p2 Change direction (+1, +1), \c 0 for boolean settings.
 167  */
 168 typedef int32 CheckButtonClick(int32 p1, int32 p2);
 169
 170 /** Information of a cheat. */
 171 struct CheatEntry {
 172         VarType type;          ///< type of selector
 173         StringID str;          ///< string with descriptive text
 174         void *variable;        ///< pointer to the variable
 175         bool *been_used;       ///< has this cheat been used before?
 176         CheckButtonClick *proc;///< procedure
 177 };
 178
 179 /**
 180  * The available cheats.
 181  * Order matches with the values of #CheatNumbers
 182  */
 183 static const CheatEntry _cheats_ui[] = {
 184         {SLE_INT32, STR_CHEAT_MONEY,           &_money_cheat_amount,                    &_cheats.money.been_used,            &ClickMoneyCheat         },
 185         {SLE_UINT8, STR_CHEAT_CHANGE_COMPANY,  &_local_company,                         &_cheats.switch_company.been_used,   &ClickChangeCompanyCheat },
 186         {SLE_BOOL,  STR_CHEAT_EXTRA_DYNAMITE,  &_cheats.magic_bulldozer.value,          &_cheats.magic_bulldozer.been_used,  NULL                     },
 187         {SLE_BOOL,  STR_CHEAT_CROSSINGTUNNELS, &_cheats.crossing_tunnels.value,         &_cheats.crossing_tunnels.been_used, NULL                     },
 188         {SLE_BOOL,  STR_CHEAT_NO_JETCRASH,     &_cheats.no_jetcrash.value,              &_cheats.no_jetcrash.been_used,      NULL                     },
 189         {SLE_BOOL,  STR_CHEAT_SETUP_PROD,      &_cheats.setup_prod.value,               &_cheats.setup_prod.been_used,       &ClickSetProdCheat       },
 190         {SLE_UINT8, STR_CHEAT_EDIT_MAX_HL,     &_settings_game.construction.max_heightlevel, &_cheats.edit_max_hl.been_used, &ClickChangeMaxHlCheat   },
 191         {SLE_INT32, STR_CHEAT_CHANGE_DATE,     &_cur_year,                              &_cheats.change_date.been_used,      &ClickChangeDateCheat    },
 192 };
 193
 194 assert_compile(CHT_NUM_CHEATS == lengthof(_cheats_ui));
 195
 196 /** Widget definitions of the cheat GUI. */
 197 static const NWidgetPart _nested_cheat_widgets[] = {
 198         NWidget(NWID_HORIZONTAL),
 199                 NWidget(WWT_CLOSEBOX, COLOUR_GREY),
 200                 NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CHEATS, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
 201                 NWidget(WWT_SHADEBOX, COLOUR_GREY),
 202                 NWidget(WWT_STICKYBOX, COLOUR_GREY),
 203         EndContainer(),
 204         NWidget(WWT_PANEL, COLOUR_GREY, WID_C_PANEL), SetDataTip(0x0, STR_CHEATS_TOOLTIP), EndContainer(),
 205 };
 206
 207 /** GUI for the cheats. */
 208 struct CheatWindow : Window {
 209         int clicked;
 210         int header_height;
 211         int clicked_widget;
 212         uint line_height;
 213         int box_width;
 214
 215         CheatWindow (const WindowDesc *desc)
 216                 : Window (desc), clicked (0), header_height (0),
 217                   clicked_widget (0), line_height (0),
 218                   box_width (GetSpriteSize(SPR_BOX_EMPTY).width)
 219         {
 220                 this->InitNested();
 221         }
 222
 223         void DrawWidget (BlitArea *dpi, const Rect &r, int widget) const OVERRIDE
 224         {
 225                 if (widget != WID_C_PANEL) return;
 226
 227                 int y = r.top + WD_FRAMERECT_TOP + this->header_height;
 228                 DrawStringMultiLine (dpi, r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_LEFT, r.top + WD_FRAMERECT_TOP, y, STR_CHEATS_WARNING, TC_FROMSTRING, SA_CENTER);
 229
 230                 bool rtl = _current_text_dir == TD_RTL;
 231                 uint box_left    = rtl ? r.right - this->box_width - 5 : r.left + 5;
 232                 uint button_left = rtl ? r.right - this->box_width - 10 - SETTING_BUTTON_WIDTH : r.left + this->box_width + 10;
 233                 uint text_left   = r.left + (rtl ? WD_FRAMERECT_LEFT : 20 + this->box_width + SETTING_BUTTON_WIDTH);
 234                 uint text_right  = r.right - (rtl ? 20 + this->box_width + SETTING_BUTTON_WIDTH : WD_FRAMERECT_RIGHT);
 235
 236                 int text_y_offset = (this->line_height - FONT_HEIGHT_NORMAL) / 2;
 237                 int icon_y_offset = (this->line_height - SETTING_BUTTON_HEIGHT) / 2;
 238
 239                 for (int i = 0; i != lengthof(_cheats_ui); i++) {
 240                         const CheatEntry *ce = &_cheats_ui[i];
 241
 242                         DrawSprite (dpi, (*ce->been_used) ? SPR_BOX_CHECKED : SPR_BOX_EMPTY, PAL_NONE, box_left, y + icon_y_offset + 2);
 243
 244                         switch (ce->type) {
 245                                 case SLE_BOOL: {
 246                                         bool on = (*(bool*)ce->variable);
 247
 248                                         DrawBoolButton (dpi, button_left, y + icon_y_offset, on, true);
 249                                         SetDParam(0, on ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
 250                                         break;
 251                                 }
 252
 253                                 default: {
 254                                         int32 val = (int32)ReadValue(ce->variable, ce->type);
 255
 256                                         /* Draw [<][>] boxes for settings of an integer-type */
 257                                         DrawArrowButtons (dpi, button_left, y + icon_y_offset, COLOUR_YELLOW, clicked - (i * 2), true, true);
 258
 259                                         switch (ce->str) {
 260                                                 /* Display date for change date cheat */
 261                                                 case STR_CHEAT_CHANGE_DATE: SetDParam(0, _date); break;
 262
 263                                                 /* Draw coloured flag for change company cheat */
 264                                                 case STR_CHEAT_CHANGE_COMPANY: {
 265                                                         char buf[512];
 266                                                         SetDParam(0, val + 1);
 267                                                         GetString (buf, STR_CHEAT_CHANGE_COMPANY);
 268                                                         uint offset = 10 + GetStringBoundingBox(buf).width;
 269                                                         DrawCompanyIcon (dpi, _local_company, rtl ? text_right - offset - 10 : text_left + offset, y + icon_y_offset + 2);
 270                                                         break;
 271                                                 }
 272
 273                                                 default: SetDParam(0, val);
 274                                         }
 275                                         break;
 276                                 }
 277                         }
 278
 279                         DrawString (dpi, text_left, text_right, y + text_y_offset, ce->str);
 280
 281                         y += this->line_height;
 282                 }
 283         }
 284
 285         virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
 286         {
 287                 if (widget != WID_C_PANEL) return;
 288
 289                 uint width = 0;
 290                 for (int i = 0; i != lengthof(_cheats_ui); i++) {
 291                         const CheatEntry *ce = &_cheats_ui[i];
 292                         switch (ce->type) {
 293                                 case SLE_BOOL:
 294                                         SetDParam(0, STR_CONFIG_SETTING_ON);
 295                                         width = max(width, GetStringBoundingBox(ce->str).width);
 296                                         SetDParam(0, STR_CONFIG_SETTING_OFF);
 297                                         width = max(width, GetStringBoundingBox(ce->str).width);
 298                                         break;
 299
 300                                 default:
 301                                         switch (ce->str) {
 302                                                 /* Display date for change date cheat */
 303                                                 case STR_CHEAT_CHANGE_DATE:
 304                                                         SetDParam(0, ConvertYMDToDate(MAX_YEAR, 11, 31));
 305                                                         width = max(width, GetStringBoundingBox(ce->str).width);
 306                                                         break;
 307
 308                                                 /* Draw coloured flag for change company cheat */
 309                                                 case STR_CHEAT_CHANGE_COMPANY:
 310                                                         SetDParamMaxValue(0, MAX_COMPANIES);
 311                                                         width = max(width, GetStringBoundingBox(ce->str).width + 10 + 10);
 312                                                         break;
 313
 314                                                 default:
 315                                                         SetDParam(0, INT64_MAX);
 316                                                         width = max(width, GetStringBoundingBox(ce->str).width);
 317                                                         break;
 318                                         }
 319                                         break;
 320                         }
 321                 }
 322
 323                 this->line_height = max(GetSpriteSize(SPR_BOX_CHECKED).height, GetSpriteSize(SPR_BOX_EMPTY).height);
 324                 this->line_height = max<uint>(this->line_height, SETTING_BUTTON_HEIGHT);
 325                 this->line_height = max<uint>(this->line_height, FONT_HEIGHT_NORMAL) + WD_PAR_VSEP_NORMAL;
 326
 327                 size->width = width + 20 + this->box_width + SETTING_BUTTON_WIDTH /* stuff on the left */ + 10 /* extra spacing on right */;
 328                 this->header_height = GetStringHeight(STR_CHEATS_WARNING, size->width - WD_FRAMERECT_LEFT - WD_FRAMERECT_RIGHT) + WD_PAR_VSEP_WIDE;
 329                 size->height = this->header_height + WD_FRAMERECT_TOP + WD_PAR_VSEP_NORMAL + WD_FRAMERECT_BOTTOM + this->line_height * lengthof(_cheats_ui);
 330         }
 331
 332         virtual void OnClick(Point pt, int widget, int click_count)
 333         {
 334                 const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_C_PANEL);
 335                 uint btn = (pt.y - wid->pos_y - WD_FRAMERECT_TOP - this->header_height) / this->line_height;
 336                 int x = pt.x - wid->pos_x;
 337                 bool rtl = _current_text_dir == TD_RTL;
 338                 if (rtl) x = wid->current_x - x;
 339
 340                 if (btn >= lengthof(_cheats_ui)) return;
 341
 342                 const CheatEntry *ce = &_cheats_ui[btn];
 343                 int value = (int32)ReadValue(ce->variable, ce->type);
 344                 int oldvalue = value;
 345
 346                 if (btn == CHT_CHANGE_DATE && x >= 20 + this->box_width + SETTING_BUTTON_WIDTH) {
 347                         /* Click at the date text directly. */
 348                         clicked_widget = CHT_CHANGE_DATE;
 349                         SetDParam(0, value);
 350                         ShowQueryString(STR_JUST_INT, STR_CHEAT_CHANGE_DATE_QUERY_CAPT, 8, this, CS_NUMERAL, QSF_ACCEPT_UNCHANGED);
 351                         return;
 352                 } else if (btn == CHT_EDIT_MAX_HL && x >= 20 + this->box_width + SETTING_BUTTON_WIDTH) {
 353                         clicked_widget = CHT_EDIT_MAX_HL;
 354                         SetDParam(0, value);
 355                         ShowQueryString(STR_JUST_INT, STR_CHEAT_EDIT_MAX_HL_QUERY_CAPT, 8, this, CS_NUMERAL, QSF_ACCEPT_UNCHANGED);
 356                         return;
 357                 }
 358
 359                 /* Not clicking a button? */
 360                 if (!IsInsideMM(x, 10 + this->box_width, 10 + this->box_width + SETTING_BUTTON_WIDTH)) return;
 361
 362                 *ce->been_used = true;
 363
 364                 switch (ce->type) {
 365                         case SLE_BOOL:
 366                                 value ^= 1;
 367                                 if (ce->proc != NULL) ce->proc(value, 0);
 368                                 break;
 369
 370                         default:
 371                                 /* Take whatever the function returns */
 372                                 value = ce->proc(value + ((x >= 20 + SETTING_BUTTON_WIDTH / 2) ? 1 : -1), (x >= 10 + this->box_width + SETTING_BUTTON_WIDTH / 2) ? 1 : -1);
 373
 374                                 /* The first cheat (money), doesn't return a different value. */
 375                                 if (value != oldvalue || btn == CHT_MONEY) this->clicked = btn * 2 + 1 + ((x >= 10 + this->box_width + SETTING_BUTTON_WIDTH / 2) != rtl ? 1 : 0);
 376                                 break;
 377                 }
 378
 379                 if (value != oldvalue) WriteValue(ce->variable, ce->type, (int64)value);
 380
 381                 this->SetTimeout();
 382
 383                 this->SetDirty();
 384         }
 385
 386         virtual void OnTimeout()
 387         {
 388                 this->clicked = 0;
 389                 this->SetDirty();
 390         }
 391
 392         virtual void OnQueryTextFinished(char *str)
 393         {
 394                 /* Was 'cancel' pressed or nothing entered? */
 395                 if (str == NULL || StrEmpty(str)) return;
 396
 397                 const CheatEntry *ce = &_cheats_ui[clicked_widget];
 398                 int oldvalue = (int32)ReadValue(ce->variable, ce->type);
 399                 int value = atoi(str);
 400                 *ce->been_used = true;
 401                 value = ce->proc(value, value - oldvalue);
 402
 403                 if (value != oldvalue) WriteValue(ce->variable, ce->type, (int64)value);
 404                 this->SetDirty();
 405         }
 406 };
 407
 408 /** Window preferences of the cheats GUI. */
 409 static WindowDesc::Prefs _cheats_prefs ("cheats");
 410
 411 /** Window description of the cheats GUI. */
 412 static const WindowDesc _cheats_desc(
 413         WDP_AUTO, 0, 0,
 414         WC_CHEATS, WC_NONE,
 415         0,
 416         _nested_cheat_widgets, lengthof(_nested_cheat_widgets),
 417         &_cheats_prefs
 418 );
 419
 420 /** Open cheat window. */
 421 void ShowCheatWindow()
 422 {
 423         DeleteWindowById(WC_CHEATS, 0);
 424         new CheatWindow(&_cheats_desc);
 425 }