Initialize with OpenTTD 1.9.3

2019-10-31 21:58:04 +03:00
commit b84a475e14
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+/* $Id$ */
+
+/*
+ * 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 labelmaps_sl.cpp Code handling saving and loading of rail type label mappings */
+
+#include "../stdafx.h"
+#include "../station_map.h"
+#include "../tunnelbridge_map.h"
+
+#include "saveload.h"
+
+#include "../safeguards.h"
+
+static SmallVector<RailTypeLabel, RAILTYPE_END> _railtype_list;
+
+/**
+ * Test if any saved rail type labels are different to the currently loaded
+ * rail types, which therefore requires conversion.
+ * @return true if (and only if) conversion due to rail type changes is needed.
+ */
+static bool NeedRailTypeConversion()
+{
+	for (uint i = 0; i < _railtype_list.Length(); i++) {
+		if ((RailType)i < RAILTYPE_END) {
+			const RailtypeInfo *rti = GetRailTypeInfo((RailType)i);
+			if (rti->label != _railtype_list[i]) return true;
+		} else {
+			if (_railtype_list[i] != 0) return true;
+		}
+	}
+
+	/* No rail type conversion is necessary */
+	return false;
+}
+
+void AfterLoadLabelMaps()
+{
+	if (NeedRailTypeConversion()) {
+		SmallVector<RailType, RAILTYPE_END> railtype_conversion_map;
+
+		for (uint i = 0; i < _railtype_list.Length(); i++) {
+			RailType r = GetRailTypeByLabel(_railtype_list[i]);
+			if (r == INVALID_RAILTYPE) r = RAILTYPE_BEGIN;
+
+			*railtype_conversion_map.Append() = r;
+		}
+
+		for (TileIndex t = 0; t < MapSize(); t++) {
+			switch (GetTileType(t)) {
+				case MP_RAILWAY:
+					SetRailType(t, railtype_conversion_map[GetRailType(t)]);
+					break;
+
+				case MP_ROAD:
+					if (IsLevelCrossing(t)) {
+						SetRailType(t, railtype_conversion_map[GetRailType(t)]);
+					}
+					break;
+
+				case MP_STATION:
+					if (HasStationRail(t)) {
+						SetRailType(t, railtype_conversion_map[GetRailType(t)]);
+					}
+					break;
+
+				case MP_TUNNELBRIDGE:
+					if (GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL) {
+						SetRailType(t, railtype_conversion_map[GetRailType(t)]);
+					}
+					break;
+
+				default:
+					break;
+			}
+		}
+	}
+
+	_railtype_list.Clear();
+}
+
+/** Container for a label for SaveLoad system */
+struct LabelObject {
+	uint32 label;
+};
+
+static const SaveLoad _label_object_desc[] = {
+	SLE_VAR(LabelObject, label, SLE_UINT32),
+	SLE_END(),
+};
+
+static void Save_RAIL()
+{
+	LabelObject lo;
+
+	for (RailType r = RAILTYPE_BEGIN; r != RAILTYPE_END; r++) {
+		lo.label = GetRailTypeInfo(r)->label;
+
+		SlSetArrayIndex(r);
+		SlObject(&lo, _label_object_desc);
+	}
+}
+
+static void Load_RAIL()
+{
+	_railtype_list.Clear();
+
+	LabelObject lo;
+
+	while (SlIterateArray() != -1) {
+		SlObject(&lo, _label_object_desc);
+		*_railtype_list.Append() = (RailTypeLabel)lo.label;
+	}
+}
+
+extern const ChunkHandler _labelmaps_chunk_handlers[] = {
+	{ 'RAIL', Save_RAIL, Load_RAIL, NULL, NULL, CH_ARRAY | CH_LAST},
+};
+