Files @ r28616:1df48a6fd940
Branch filter:

Location: cpp/openttd-patchpack/source/src/bridge_gui.cpp

glx22
Fix 48b6b18: Increase MAX_VALUATE_OPS to match the previous limit
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */

/** @file bridge_gui.cpp Graphical user interface for bridge construction */

#include "stdafx.h"
#include "error.h"
#include "command_func.h"
#include "rail.h"
#include "road.h"
#include "strings_func.h"
#include "window_func.h"
#include "sound_func.h"
#include "gfx_func.h"
#include "tunnelbridge.h"
#include "sortlist_type.h"
#include "widgets/dropdown_func.h"
#include "core/geometry_func.hpp"
#include "tunnelbridge_map.h"
#include "road_gui.h"
#include "tunnelbridge_cmd.h"

#include "widgets/bridge_widget.h"

#include "table/strings.h"

#include "safeguards.h"

/** The type of the last built rail bridge */
static BridgeType _last_railbridge_type = 0;
/** The type of the last built road bridge */
static BridgeType _last_roadbridge_type = 0;

/**
 * Carriage for the data we need if we want to build a bridge
 */
struct BuildBridgeData {
	BridgeType index;
	const BridgeSpec *spec;
	Money cost;
};

typedef GUIList<BuildBridgeData> GUIBridgeList; ///< List of bridges, used in #BuildBridgeWindow.

/**
 * Callback executed after a build Bridge CMD has been called
 *
 * @param result Whether the build succeeded
 * @param end_tile End tile of the bridge.
 * @param tile_start start tile
 * @param transport_type transport type.
 */
void CcBuildBridge(Commands, const CommandCost &result, TileIndex end_tile, TileIndex tile_start, TransportType transport_type, BridgeType, byte)
{
	if (result.Failed()) return;
	if (_settings_client.sound.confirm) SndPlayTileFx(SND_27_CONSTRUCTION_BRIDGE, end_tile);

	if (transport_type == TRANSPORT_ROAD) {
		DiagDirection end_direction = ReverseDiagDir(GetTunnelBridgeDirection(end_tile));
		ConnectRoadToStructure(end_tile, end_direction);

		DiagDirection start_direction = ReverseDiagDir(GetTunnelBridgeDirection(tile_start));
		ConnectRoadToStructure(tile_start, start_direction);
	}
}

/** Window class for handling the bridge-build GUI. */
class BuildBridgeWindow : public Window {
private:
	/* Runtime saved values */
	static Listing last_sorting; ///< Last setting of the sort.

	/* Constants for sorting the bridges */
	static const StringID sorter_names[];
	static GUIBridgeList::SortFunction * const sorter_funcs[];

	/* Internal variables */
	TileIndex start_tile;
	TileIndex end_tile;
	TransportType transport_type;
	byte road_rail_type;
	GUIBridgeList bridges;
	int icon_width; ///< Scaled width of the the bridge icon sprite.
	Scrollbar *vscroll;

	/** Sort the bridges by their index */
	static bool BridgeIndexSorter(const BuildBridgeData &a, const BuildBridgeData &b)
	{
		return a.index < b.index;
	}

	/** Sort the bridges by their price */
	static bool BridgePriceSorter(const BuildBridgeData &a, const BuildBridgeData &b)
	{
		return a.cost < b.cost;
	}

	/** Sort the bridges by their maximum speed */
	static bool BridgeSpeedSorter(const BuildBridgeData &a, const BuildBridgeData &b)
	{
		return a.spec->speed < b.spec->speed;
	}

	void BuildBridge(BridgeType type)
	{
		switch (this->transport_type) {
			case TRANSPORT_RAIL: _last_railbridge_type = type; break;
			case TRANSPORT_ROAD: _last_roadbridge_type = type; break;
			default: break;
		}
		Command<CMD_BUILD_BRIDGE>::Post(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE, CcBuildBridge,
					this->end_tile, this->start_tile, this->transport_type, type, this->road_rail_type);
	}

	/** Sort the builable bridges */
	void SortBridgeList()
	{
		this->bridges.Sort();

		/* Display the current sort variant */
		this->GetWidget<NWidgetCore>(WID_BBS_DROPDOWN_CRITERIA)->widget_data = this->sorter_names[this->bridges.SortType()];

		/* Set the modified widgets dirty */
		this->SetWidgetDirty(WID_BBS_DROPDOWN_CRITERIA);
		this->SetWidgetDirty(WID_BBS_BRIDGE_LIST);
	}

	/**
	 * Get the StringID to draw in the selection list and set the appropriate DParams.
	 * @param bridge_data the bridge to get the StringID of.
	 * @return the StringID.
	 */
	StringID GetBridgeSelectString(const BuildBridgeData &bridge_data) const
	{
		SetDParam(0, bridge_data.spec->material);
		SetDParam(1, PackVelocity(bridge_data.spec->speed, static_cast<VehicleType>(this->transport_type)));
		SetDParam(2, bridge_data.cost);
		/* If the bridge has no meaningful speed limit, don't display it. */
		if (bridge_data.spec->speed == UINT16_MAX) {
			return _game_mode == GM_EDITOR ? STR_SELECT_BRIDGE_INFO_NAME : STR_SELECT_BRIDGE_INFO_NAME_COST;
		}
		return _game_mode == GM_EDITOR ? STR_SELECT_BRIDGE_INFO_NAME_MAX_SPEED : STR_SELECT_BRIDGE_INFO_NAME_MAX_SPEED_COST;
	}

public:
	BuildBridgeWindow(WindowDesc *desc, TileIndex start, TileIndex end, TransportType transport_type, byte road_rail_type, GUIBridgeList &&bl) : Window(desc),
		start_tile(start),
		end_tile(end),
		transport_type(transport_type),
		road_rail_type(road_rail_type),
		bridges(std::move(bl))
	{
		this->CreateNestedTree();
		this->vscroll = this->GetScrollbar(WID_BBS_SCROLLBAR);
		/* Change the data, or the caption of the gui. Set it to road or rail, accordingly. */
		this->GetWidget<NWidgetCore>(WID_BBS_CAPTION)->widget_data = (transport_type == TRANSPORT_ROAD) ? STR_SELECT_ROAD_BRIDGE_CAPTION : STR_SELECT_RAIL_BRIDGE_CAPTION;
		this->FinishInitNested(transport_type); // Initializes 'this->icon_width'.

		this->parent = FindWindowById(WC_BUILD_TOOLBAR, transport_type);
		this->bridges.SetListing(this->last_sorting);
		this->bridges.SetSortFuncs(this->sorter_funcs);
		this->bridges.NeedResort();
		this->SortBridgeList();

		this->vscroll->SetCount(this->bridges.size());
	}

	~BuildBridgeWindow()
	{
		this->last_sorting = this->bridges.GetListing();
	}

	void UpdateWidgetSize(WidgetID widget, Dimension *size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension *fill, [[maybe_unused]] Dimension *resize) override
	{
		switch (widget) {
			case WID_BBS_DROPDOWN_ORDER: {
				Dimension d = GetStringBoundingBox(this->GetWidget<NWidgetCore>(widget)->widget_data);
				d.width += padding.width + Window::SortButtonWidth() * 2; // Doubled since the string is centred and it also looks better.
				d.height += padding.height;
				*size = maxdim(*size, d);
				break;
			}
			case WID_BBS_DROPDOWN_CRITERIA: {
				Dimension d = {0, 0};
				for (const StringID *str = this->sorter_names; *str != INVALID_STRING_ID; str++) {
					d = maxdim(d, GetStringBoundingBox(*str));
				}
				d.width += padding.width;
				d.height += padding.height;
				*size = maxdim(*size, d);
				break;
			}
			case WID_BBS_BRIDGE_LIST: {
				Dimension sprite_dim = {0, 0}; // Biggest bridge sprite dimension
				Dimension text_dim   = {0, 0}; // Biggest text dimension
				for (const BuildBridgeData &bridge_data : this->bridges) {
					sprite_dim = maxdim(sprite_dim, GetScaledSpriteSize(bridge_data.spec->sprite));
					text_dim = maxdim(text_dim, GetStringBoundingBox(GetBridgeSelectString(bridge_data)));
				}
				resize->height = std::max(sprite_dim.height, text_dim.height) + padding.height; // Max of both sizes + account for matrix edges.

				this->icon_width = sprite_dim.width; // Width of bridge icon.
				size->width = this->icon_width + WidgetDimensions::scaled.hsep_normal + text_dim.width + padding.width;
				size->height = 4 * resize->height; // Smallest bridge gui is 4 entries high in the matrix.
				break;
			}
		}
	}

	Point OnInitialPosition([[maybe_unused]] int16_t sm_width, [[maybe_unused]] int16_t sm_height, [[maybe_unused]] int window_number) override
	{
		/* Position the window so hopefully the first bridge from the list is under the mouse pointer. */
		NWidgetBase *list = this->GetWidget<NWidgetBase>(WID_BBS_BRIDGE_LIST);
		Point corner; // point of the top left corner of the window.
		corner.y = Clamp(_cursor.pos.y - list->pos_y - 5, GetMainViewTop(), GetMainViewBottom() - sm_height);
		corner.x = Clamp(_cursor.pos.x - list->pos_x - 5, 0, _screen.width - sm_width);
		return corner;
	}

	void DrawWidget(const Rect &r, WidgetID widget) const override
	{
		switch (widget) {
			case WID_BBS_DROPDOWN_ORDER:
				this->DrawSortButtonState(widget, this->bridges.IsDescSortOrder() ? SBS_DOWN : SBS_UP);
				break;

			case WID_BBS_BRIDGE_LIST: {
				Rect tr = r.WithHeight(this->resize.step_height).Shrink(WidgetDimensions::scaled.matrix);
				bool rtl = _current_text_dir == TD_RTL;
				for (int i = this->vscroll->GetPosition(); this->vscroll->IsVisible(i) && i < (int)this->bridges.size(); i++) {
					const BuildBridgeData &bridge_data = this->bridges.at(i);
					const BridgeSpec *b = bridge_data.spec;
					DrawSpriteIgnorePadding(b->sprite, b->pal, tr.WithWidth(this->icon_width, rtl), SA_HOR_CENTER | SA_BOTTOM);
					DrawStringMultiLine(tr.Indent(this->icon_width + WidgetDimensions::scaled.hsep_normal, rtl), GetBridgeSelectString(bridge_data));
					tr = tr.Translate(0, this->resize.step_height);
				}
				break;
			}
		}
	}

	EventState OnKeyPress([[maybe_unused]] char32_t key, uint16_t keycode) override
	{
		const uint8_t i = keycode - '1';
		if (i < 9 && i < this->bridges.size()) {
			/* Build the requested bridge */
			this->BuildBridge(this->bridges[i].index);
			this->Close();
			return ES_HANDLED;
		}
		return ES_NOT_HANDLED;
	}

	void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
	{
		switch (widget) {
			default: break;
			case WID_BBS_BRIDGE_LIST: {
				auto it = this->vscroll->GetScrolledItemFromWidget(this->bridges, pt.y, this, WID_BBS_BRIDGE_LIST);
				if (it != this->bridges.end()) {
					this->BuildBridge(it->index);
					this->Close();
				}
				break;
			}

			case WID_BBS_DROPDOWN_ORDER:
				this->bridges.ToggleSortOrder();
				this->SetDirty();
				break;

			case WID_BBS_DROPDOWN_CRITERIA:
				ShowDropDownMenu(this, this->sorter_names, this->bridges.SortType(), WID_BBS_DROPDOWN_CRITERIA, 0, 0);
				break;
		}
	}

	void OnDropdownSelect(WidgetID widget, int index) override
	{
		if (widget == WID_BBS_DROPDOWN_CRITERIA && this->bridges.SortType() != index) {
			this->bridges.SetSortType(index);

			this->SortBridgeList();
		}
	}

	void OnResize() override
	{
		this->vscroll->SetCapacityFromWidget(this, WID_BBS_BRIDGE_LIST);
	}
};

/** Set the default sorting for the bridges */
Listing BuildBridgeWindow::last_sorting = {true, 2};

/** Available bridge sorting functions. */
GUIBridgeList::SortFunction * const BuildBridgeWindow::sorter_funcs[] = {
	&BridgeIndexSorter,
	&BridgePriceSorter,
	&BridgeSpeedSorter
};

/** Names of the sorting functions. */
const StringID BuildBridgeWindow::sorter_names[] = {
	STR_SORT_BY_NUMBER,
	STR_SORT_BY_COST,
	STR_SORT_BY_MAX_SPEED,
	INVALID_STRING_ID
};

/** Widgets of the bridge gui. */
static constexpr NWidgetPart _nested_build_bridge_widgets[] = {
	/* Header */
	NWidget(NWID_HORIZONTAL),
		NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
		NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_BBS_CAPTION), SetDataTip(STR_SELECT_RAIL_BRIDGE_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
		NWidget(WWT_DEFSIZEBOX, COLOUR_DARK_GREEN),
	EndContainer(),

	NWidget(NWID_HORIZONTAL),
		NWidget(NWID_VERTICAL),
			/* Sort order + criteria buttons */
			NWidget(NWID_HORIZONTAL),
				NWidget(WWT_TEXTBTN, COLOUR_DARK_GREEN, WID_BBS_DROPDOWN_ORDER), SetFill(1, 0), SetDataTip(STR_BUTTON_SORT_BY, STR_TOOLTIP_SORT_ORDER),
				NWidget(WWT_DROPDOWN, COLOUR_DARK_GREEN, WID_BBS_DROPDOWN_CRITERIA), SetFill(1, 0), SetDataTip(0x0, STR_TOOLTIP_SORT_CRITERIA),
			EndContainer(),
			/* Matrix. */
			NWidget(WWT_MATRIX, COLOUR_DARK_GREEN, WID_BBS_BRIDGE_LIST), SetFill(1, 0), SetResize(0, 22), SetMatrixDataTip(1, 0, STR_SELECT_BRIDGE_SELECTION_TOOLTIP), SetScrollbar(WID_BBS_SCROLLBAR),
		EndContainer(),

		/* scrollbar + resize button */
		NWidget(NWID_VERTICAL),
			NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, WID_BBS_SCROLLBAR),
			NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
		EndContainer(),
	EndContainer(),
};

/** Window definition for the rail bridge selection window. */
static WindowDesc _build_bridge_desc(__FILE__, __LINE__,
	WDP_AUTO, "build_bridge", 200, 114,
	WC_BUILD_BRIDGE, WC_BUILD_TOOLBAR,
	WDF_CONSTRUCTION,
	std::begin(_nested_build_bridge_widgets), std::end(_nested_build_bridge_widgets)
);

/**
 * Prepare the data for the build a bridge window.
 *  If we can't build a bridge under the given conditions
 *  show an error message.
 *
 * @param start The start tile of the bridge
 * @param end The end tile of the bridge
 * @param transport_type The transport type
 * @param road_rail_type The road/rail type
 */
void ShowBuildBridgeWindow(TileIndex start, TileIndex end, TransportType transport_type, byte road_rail_type)
{
	CloseWindowByClass(WC_BUILD_BRIDGE);

	/* The bridge length without ramps. */
	const uint bridge_len = GetTunnelBridgeLength(start, end);

	/* If Ctrl is being pressed, check whether the last bridge built is available
	 * If so, return this bridge type. Otherwise continue normally.
	 * We store bridge types for each transport type, so we have to check for
	 * the transport type beforehand.
	 */
	BridgeType last_bridge_type = 0;
	switch (transport_type) {
		case TRANSPORT_ROAD: last_bridge_type = _last_roadbridge_type; break;
		case TRANSPORT_RAIL: last_bridge_type = _last_railbridge_type; break;
		default: break; // water ways and air routes don't have bridge types
	}
	if (_ctrl_pressed && CheckBridgeAvailability(last_bridge_type, bridge_len).Succeeded()) {
		Command<CMD_BUILD_BRIDGE>::Post(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE, CcBuildBridge, end, start, transport_type, last_bridge_type, road_rail_type);
		return;
	}

	/* only query bridge building possibility once, result is the same for all bridges!
	 * returns CMD_ERROR on failure, and price on success */
	StringID errmsg = INVALID_STRING_ID;
	CommandCost ret = Command<CMD_BUILD_BRIDGE>::Do(CommandFlagsToDCFlags(GetCommandFlags<CMD_BUILD_BRIDGE>()) | DC_QUERY_COST, end, start, transport_type, 0, road_rail_type);

	GUIBridgeList bl;
	if (ret.Failed()) {
		errmsg = ret.GetErrorMessage();
	} else {
		/* check which bridges can be built */
		const uint tot_bridgedata_len = CalcBridgeLenCostFactor(bridge_len + 2);

		Money infra_cost = 0;
		switch (transport_type) {
			case TRANSPORT_ROAD: {
				/* In case we add a new road type as well, we must be aware of those costs. */
				RoadType road_rt = INVALID_ROADTYPE;
				RoadType tram_rt = INVALID_ROADTYPE;
				if (IsBridgeTile(start)) {
					road_rt = GetRoadTypeRoad(start);
					tram_rt = GetRoadTypeTram(start);
				}
				if (RoadTypeIsRoad((RoadType)road_rail_type)) {
					road_rt = (RoadType)road_rail_type;
				} else {
					tram_rt = (RoadType)road_rail_type;
				}

				if (road_rt != INVALID_ROADTYPE) infra_cost += (bridge_len + 2) * 2 * RoadBuildCost(road_rt);
				if (tram_rt != INVALID_ROADTYPE) infra_cost += (bridge_len + 2) * 2 * RoadBuildCost(tram_rt);

				break;
			}
			case TRANSPORT_RAIL: infra_cost = (bridge_len + 2) * RailBuildCost((RailType)road_rail_type); break;
			default: break;
		}

		bool any_available = false;
		CommandCost type_check;
		/* loop for all bridgetypes */
		for (BridgeType brd_type = 0; brd_type != MAX_BRIDGES; brd_type++) {
			type_check = CheckBridgeAvailability(brd_type, bridge_len);
			if (type_check.Succeeded()) {
				/* bridge is accepted, add to list */
				BuildBridgeData &item = bl.emplace_back();
				item.index = brd_type;
				item.spec = GetBridgeSpec(brd_type);
				/* Add to terraforming & bulldozing costs the cost of the
				 * bridge itself (not computed with DC_QUERY_COST) */
				item.cost = ret.GetCost() + (((int64_t)tot_bridgedata_len * _price[PR_BUILD_BRIDGE] * item.spec->price) >> 8) + infra_cost;
				any_available = true;
			}
		}
		/* give error cause if no bridges available here*/
		if (!any_available)
		{
			errmsg = type_check.GetErrorMessage();
		}
	}

	if (!bl.empty()) {
		new BuildBridgeWindow(&_build_bridge_desc, start, end, transport_type, road_rail_type, std::move(bl));
	} else {
		ShowErrorMessage(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE, errmsg, WL_INFO, TileX(end) * TILE_SIZE, TileY(end) * TILE_SIZE);
	}
}