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/* $Id$ */

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/** @file cheat_gui.cpp GUI related to cheating. */

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#include "stdafx.h"

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#include "openttd.h"

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#include "command_func.h"

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#include "cheat_func.h"

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#include "player_base.h"

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#include "player_func.h"

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#include "gfx_func.h"

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#include "date_func.h"

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#include "saveload.h"

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#include "window_gui.h"

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#include "newgrf.h"

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#include "settings_type.h"

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#include "strings_func.h"

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#include "window_func.h"

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#include "rail_gui.h"

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#include "gui.h"

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#include "player_gui.h"

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#include "table/strings.h"

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#include "table/sprites.h"

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/**

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 * The 'amount' to cheat with.

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 * This variable is semantically a constant value, but because the cheat

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 * code requires to be able to write to the variable it is not constified.

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 */

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static int32 _money_cheat_amount = 10000000;

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static int32 ClickMoneyCheat(int32 p1, int32 p2)

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{

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	DoCommandP(0, (uint32)(p2 * _money_cheat_amount), 0, NULL, CMD_MONEY_CHEAT);

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	return _money_cheat_amount;

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}

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/**

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 * @param p1 player to set to

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 * @param p2 is -1 or +1 (down/up)

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 */

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static int32 ClickChangePlayerCheat(int32 p1, int32 p2)

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{

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	while (IsValidPlayer((PlayerID)p1)) {

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		if (_players[p1].is_active) {

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			SetLocalPlayer((PlayerID)p1);

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			MarkWholeScreenDirty();

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			return _local_player;

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		}

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		p1 += p2;

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	}

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	return _local_player;

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}

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/**

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 * @param p1 -1 or +1 (down/up)

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 * @param p2 unused

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 */

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static int32 ClickChangeClimateCheat(int32 p1, int32 p2)

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{

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	if (p1 == -1) p1 = 3;

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	if (p1 ==  4) p1 = 0;

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	_opt.landscape = p1;

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	ReloadNewGRFData();

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	return _opt.landscape;

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}

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extern void EnginesMonthlyLoop();

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/**

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 * @param p1 unused

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 * @param p2 1 (increase) or -1 (decrease)

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 */

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static int32 ClickChangeDateCheat(int32 p1, int32 p2)

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{

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	YearMonthDay ymd;

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	ConvertDateToYMD(_date, &ymd);

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	if ((ymd.year == MIN_YEAR && p2 == -1) || (ymd.year == MAX_YEAR && p2 == 1)) return _cur_year;

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	SetDate(ConvertYMDToDate(_cur_year + p2, ymd.month, ymd.day));

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	EnginesMonthlyLoop();

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	SetWindowDirty(FindWindowById(WC_STATUS_BAR, 0));

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	ResetSignalVariant();

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	return _cur_year;

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}

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typedef int32 CheckButtonClick(int32, int32);

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struct CheatEntry {

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	VarType type;          ///< type of selector

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	StringID str;          ///< string with descriptive text

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	void *variable;        ///< pointer to the variable

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	bool *been_used;       ///< has this cheat been used before?

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	CheckButtonClick *proc;///< procedure

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};

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static const CheatEntry _cheats_ui[] = {

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	{SLE_INT32, STR_CHEAT_MONEY,           &_money_cheat_amount,            &_cheats.money.been_used,            &ClickMoneyCheat        },

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	{SLE_UINT8, STR_CHEAT_CHANGE_PLAYER,   &_local_player,                  &_cheats.switch_player.been_used,    &ClickChangePlayerCheat },

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	{SLE_BOOL,  STR_CHEAT_EXTRA_DYNAMITE,  &_cheats.magic_bulldozer.value,  &_cheats.magic_bulldozer.been_used,  NULL                    },

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	{SLE_BOOL,  STR_CHEAT_CROSSINGTUNNELS, &_cheats.crossing_tunnels.value, &_cheats.crossing_tunnels.been_used, NULL                    },

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	{SLE_BOOL,  STR_CHEAT_BUILD_IN_PAUSE,  &_cheats.build_in_pause.value,   &_cheats.build_in_pause.been_used,   NULL                    },

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	{SLE_BOOL,  STR_CHEAT_NO_JETCRASH,     &_cheats.no_jetcrash.value,      &_cheats.no_jetcrash.been_used,      NULL                    },

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	{SLE_BOOL,  STR_CHEAT_SETUP_PROD,      &_cheats.setup_prod.value,       &_cheats.setup_prod.been_used,       NULL                    },

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	{SLE_UINT8, STR_CHEAT_SWITCH_CLIMATE,  &_opt.landscape,                 &_cheats.switch_climate.been_used,   &ClickChangeClimateCheat},

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	{SLE_INT32, STR_CHEAT_CHANGE_DATE,     &_cur_year,                      &_cheats.change_date.been_used,      &ClickChangeDateCheat   },

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};

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static const Widget _cheat_widgets[] = {

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{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,   STR_018B_CLOSE_WINDOW},

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{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   399,     0,    13, STR_CHEATS, STR_018C_WINDOW_TITLE_DRAG_THIS},

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{      WWT_PANEL,   RESIZE_NONE,    14,     0,   399,    14,   169, 0x0,        STR_NULL},

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{      WWT_PANEL,   RESIZE_NONE,    14,     0,   399,    14,   169, 0x0,        STR_CHEATS_TIP},

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{   WIDGETS_END},

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};

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static void CheatsWndProc(Window *w, WindowEvent *e)

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{

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	switch (e->event) {

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		case WE_PAINT: {

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			int clk = WP(w, def_d).data_1;

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			DrawWindowWidgets(w);

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			DrawStringMultiCenter(200, 25, STR_CHEATS_WARNING, w->width - 50);

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			for (int i = 0, x = 0, y = 45; i != lengthof(_cheats_ui); i++) {

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				const CheatEntry *ce = &_cheats_ui[i];

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				DrawSprite((*ce->been_used) ? SPR_BOX_CHECKED : SPR_BOX_EMPTY, PAL_NONE, x + 5, y + 2);

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				switch (ce->type) {

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					case SLE_BOOL: {

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						bool on = (*(bool*)ce->variable);

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						DrawFrameRect(x + 20, y + 1, x + 30 + 9, y + 9, on ? 6 : 4, on ? FR_LOWERED : FR_NONE);

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						SetDParam(0, on ? STR_CONFIG_PATCHES_ON : STR_CONFIG_PATCHES_OFF);

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					} break;

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					default: {

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						int32 val = (int32)ReadValue(ce->variable, ce->type);

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						char buf[512];

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						/* Draw [<][>] boxes for settings of an integer-type */

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						DrawArrowButtons(x + 20, y, 3, clk - (i * 2), true, true);

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						switch (ce->str) {

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							/* Display date for change date cheat */

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							case STR_CHEAT_CHANGE_DATE: SetDParam(0, _date); break;

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							/* Draw colored flag for change player cheat */

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							case STR_CHEAT_CHANGE_PLAYER:

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								SetDParam(0, val);

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								GetString(buf, STR_CHEAT_CHANGE_PLAYER, lastof(buf));

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								DrawPlayerIcon(_current_player, 60 + GetStringBoundingBox(buf).width, y + 2);

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								break;

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							/* Set correct string for switch climate cheat */

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							case STR_CHEAT_SWITCH_CLIMATE: val += STR_TEMPERATE_LANDSCAPE;

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							/* Fallthrough */

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							default: SetDParam(0, val);

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						}

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					} break;

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				}

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				DrawString(50, y + 1, ce->str, TC_FROMSTRING);

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				y += 12;

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			}

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			break;

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		}

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		case WE_CLICK: {

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			uint btn = (e->we.click.pt.y - 46) / 12;

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			uint x = e->we.click.pt.x;

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			/* Not clicking a button? */

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			if (!IsInsideMM(x, 20, 40) || btn >= lengthof(_cheats_ui)) break;

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			const CheatEntry *ce = &_cheats_ui[btn];

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			int value = (int32)ReadValue(ce->variable, ce->type);

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			int oldvalue = value;

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			*ce->been_used = true;

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			switch (ce->type) {

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				case SLE_BOOL:

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					value ^= 1;

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					if (ce->proc != NULL) ce->proc(value, 0);

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					break;

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				default:

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					/* Take whatever the function returns */

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					value = ce->proc(value + ((x >= 30) ? 1 : -1), (x >= 30) ? 1 : -1);

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					if (value != oldvalue) WP(w, def_d).data_1 = btn * 2 + 1 + ((x >= 30) ? 1 : 0);

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					break;

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			}

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			if (value != oldvalue) WriteValue(ce->variable, ce->type, (int64)value);

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			w->flags4 |= 5 << WF_TIMEOUT_SHL;

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		} break;

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		case WE_TIMEOUT:

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			WP(w, def_d).data_1 = 0;

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			break;

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	}

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}

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static const WindowDesc _cheats_desc = {

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	240, 22, 400, 170, 400, 170,

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	WC_CHEATS, WC_NONE,

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	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

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	_cheat_widgets,

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	CheatsWndProc

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};

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void ShowCheatWindow()

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{

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	DeleteWindowById(WC_CHEATS, 0);

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	AllocateWindowDesc(&_cheats_desc);

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}