cpp/openttd-patchpack/source Changeset - r11396:4adf79ba94c4

Changeset - r11396:4adf79ba94c4

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frosch - 15 years ago 2009-03-17 19:40:10
frosch@openttd.org

(svn r15755) -Fix: Number of houses in house variables 0x44, 0x60 and 0x61 were incorrect after 0xFF had been reached and could desync clients joining afterwards.

2 files changed with 13 insertions and 19 deletions:

src/newgrf_house.cpp

src/town.h

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src/newgrf_house.cpp

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@@ @@ -22,7 +22,7 @@ @@
 #include "animated_tile_func.h"
 #include "company_base.h"
-static BuildingCounts    _building_counts;
+static BuildingCounts<uint32> _building_counts;
 static HouseClassMapping _class_mapping[HOUSE_CLASS_MAX];
 HouseOverrideManager _house_mngr(NEW_HOUSE_OFFSET, HOUSE_MAX, INVALID_HOUSE_ID);
@@ @@ -61,20 +61,13 @@ void IncreaseBuildingCount(Town *t, Hous @@
 	if (!_loaded_newgrf_features.has_newhouses) return;
 	/* If there are 255 buildings of this type in this town, there are also
 	 * at least that many houses of the same class in the town, and
 	 * therefore on the map as well. */
 	if (t->building_counts.id_count[house_id] == 255) return;
 	t->building_counts.id_count[house_id]++;
 	_building_counts.id_count[house_id]++;
 	t->building_counts.id_count[house_id]++;
 	if (_building_counts.id_count[house_id] < 255) _building_counts.id_count[house_id]++;
 	/* Similarly, if there are 255 houses of this class in this town, there
 	 * must be at least that number on the map too. */
 	if (class_id == HOUSE_NO_CLASS || t->building_counts.class_count[class_id] == 255) return;
 	if (class_id == HOUSE_NO_CLASS) return;
 	t->building_counts.class_count[class_id]++;
-	if (_building_counts.class_count[class_id] < 255) _building_counts.class_count[class_id]++;
 	_building_counts.class_count[class_id]++;
+}
 /**
@@ @@ -121,10 +114,10 @@ static uint32 GetNumHouses(HouseID house @@
 	uint8 map_id_count, town_id_count, map_class_count, town_class_count;
 	HouseClassID class_id = GetHouseSpecs(house_id)->class_id;
 	map_id_count     = _building_counts.id_count[house_id];
 	map_class_count  = _building_counts.class_count[class_id];
 	town_id_count    = town->building_counts.id_count[house_id];
 	town_class_count = town->building_counts.class_count[class_id];
 	map_id_count     = ClampU(_building_counts.id_count[house_id], 0, 255);
 	map_class_count  = ClampU(_building_counts.class_count[class_id], 0, 255);
 	town_id_count    = ClampU(town->building_counts.id_count[house_id], 0, 255);
 	town_class_count = ClampU(town->building_counts.class_count[class_id], 0, 255);
 	return map_class_count << 24 | town_class_count << 16 | map_id_count << 8 | town_id_count;
+}

src/town.h

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@@ @@ -90,9 +90,10 @@ enum HouseExtraFlags { @@
 DECLARE_ENUM_AS_BIT_SET(HouseExtraFlags)
 template <typename T>
 struct BuildingCounts {
 	uint8 id_count[HOUSE_MAX];
 	uint8 class_count[HOUSE_CLASS_MAX];
 	T id_count[HOUSE_MAX];
 	T class_count[HOUSE_CLASS_MAX];
 };
 static const uint CUSTOM_TOWN_NUMBER_DIFFICULTY  = 4; ///< value for custom town number in difficulty settings
@@ @@ -176,7 +177,7 @@ struct Town : PoolItem<Town, TownID, &_T @@
 	uint32 squared_town_zone_radius[HZB_END];
 	/* NOSAVE: The number of each type of building in the town. */
 	BuildingCounts building_counts;
+	BuildingCounts<uint16> building_counts;
 	/**
 	 * Creates a new town

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