(svn r16664) -Codechange: move house-related stuff from town.h and town_type.h to separate files

14 files changed, 166 insertions, 138 deletions

diff --git a/src/house.h b/src/house.h
new file mode 100644
index 000000000..bbe98845e
--- /dev/null
+++ b/src/house.h
@@ -0,0 +1,135 @@
+/* $Id$ */
+
+/** @file house.h definition of HouseSpec and accessors */
+
+#ifndef HOUSE_H
+#define HOUSE_H
+
+#include "strings_type.h"
+#include "cargo_type.h"
+#include "economy_type.h"
+#include "date_type.h"
+#include "house_type.h"
+
+/** Simple value that indicates the house has reached the final stage of
+ * construction. */
+static const byte TOWN_HOUSE_COMPLETED = 3;
+
+enum {
+	HOUSE_NO_CLASS   = 0,
+	NEW_HOUSE_OFFSET = 110,
+	HOUSE_MAX        = 512,
+	INVALID_HOUSE_ID = 0xFFFF,
+
+	/* There can only be as many classes as there are new houses, plus one for
+	 * NO_CLASS, as the original houses don't have classes. */
+	HOUSE_CLASS_MAX  = HOUSE_MAX - NEW_HOUSE_OFFSET + 1,
+};
+
+enum BuildingFlags {
+	TILE_NO_FLAG         =       0,
+	TILE_SIZE_1x1        = 1U << 0,
+	TILE_NOT_SLOPED      = 1U << 1,
+	TILE_SIZE_2x1        = 1U << 2,
+	TILE_SIZE_1x2        = 1U << 3,
+	TILE_SIZE_2x2        = 1U << 4,
+	BUILDING_IS_ANIMATED = 1U << 5,
+	BUILDING_IS_CHURCH   = 1U << 6,
+	BUILDING_IS_STADIUM  = 1U << 7,
+	BUILDING_HAS_1_TILE  = TILE_SIZE_1x1 | TILE_SIZE_2x1 | TILE_SIZE_1x2 | TILE_SIZE_2x2,
+	BUILDING_HAS_2_TILES = TILE_SIZE_2x1 | TILE_SIZE_1x2 | TILE_SIZE_2x2,
+	BUILDING_2_TILES_X   = TILE_SIZE_2x1 | TILE_SIZE_2x2,
+	BUILDING_2_TILES_Y   = TILE_SIZE_1x2 | TILE_SIZE_2x2,
+	BUILDING_HAS_4_TILES = TILE_SIZE_2x2,
+};
+DECLARE_ENUM_AS_BIT_SET(BuildingFlags)
+
+enum HouseZonesBits {
+	HZB_BEGIN     = 0,
+	HZB_TOWN_EDGE = 0,
+	HZB_TOWN_OUTSKIRT,
+	HZB_TOWN_OUTER_SUBURB,
+	HZB_TOWN_INNER_SUBURB,
+	HZB_TOWN_CENTRE,
+	HZB_END,
+};
+assert_compile(HZB_END == 5);
+
+DECLARE_POSTFIX_INCREMENT(HouseZonesBits)
+
+enum HouseZones {                  ///< Bit  Value       Meaning
+	HZ_NOZNS             = 0x0000,  ///<       0          This is just to get rid of zeros, meaning none
+	HZ_ZON1              = 1U << HZB_TOWN_EDGE,    ///< 0..4 1,2,4,8,10  which town zones the building can be built in, Zone1 been the further suburb
+	HZ_ZON2              = 1U << HZB_TOWN_OUTSKIRT,
+	HZ_ZON3              = 1U << HZB_TOWN_OUTER_SUBURB,
+	HZ_ZON4              = 1U << HZB_TOWN_INNER_SUBURB,
+	HZ_ZON5              = 1U << HZB_TOWN_CENTRE,  ///<  center of town
+	HZ_ZONALL            = 0x001F,  ///<       1F         This is just to englobe all above types at once
+	HZ_SUBARTC_ABOVE     = 0x0800,  ///< 11    800        can appear in sub-arctic climate above the snow line
+	HZ_TEMP              = 0x1000,  ///< 12   1000        can appear in temperate climate
+	HZ_SUBARTC_BELOW     = 0x2000,  ///< 13   2000        can appear in sub-arctic climate below the snow line
+	HZ_SUBTROPIC         = 0x4000,  ///< 14   4000        can appear in subtropical climate
+	HZ_TOYLND            = 0x8000   ///< 15   8000        can appear in toyland climate
+};
+DECLARE_ENUM_AS_BIT_SET(HouseZones)
+
+enum HouseExtraFlags {
+	NO_EXTRA_FLAG            =       0,
+	BUILDING_IS_HISTORICAL   = 1U << 0,  ///< this house will only appear during town generation in random games, thus the historical
+	BUILDING_IS_PROTECTED    = 1U << 1,  ///< towns and AI will not remove this house, while human players will be able to
+	SYNCHRONISED_CALLBACK_1B = 1U << 2,  ///< synchronized callback 1B will be performed, on multi tile houses
+	CALLBACK_1A_RANDOM_BITS  = 1U << 3,  ///< callback 1A needs random bits
+};
+
+DECLARE_ENUM_AS_BIT_SET(HouseExtraFlags)
+
+struct HouseSpec {
+	/* Standard properties */
+	Year min_year;                     ///< introduction year of the house
+	Year max_year;                     ///< last year it can be built
+	byte population;                   ///< population (Zero on other tiles in multi tile house.)
+	byte removal_cost;                 ///< cost multiplier for removing it
+	StringID building_name;            ///< building name
+	uint16 remove_rating_decrease;     ///< rating decrease if removed
+	byte mail_generation;              ///< mail generation multiplier (tile based, as the acceptances below)
+	byte cargo_acceptance[3];          ///< acceptance level for the cargo slots
+	CargoID accepts_cargo[3];          ///< 3 input cargo slots
+	BuildingFlags building_flags;      ///< some flags that describe the house (size, stadium etc...)
+	HouseZones building_availability;  ///< where can it be built (climates, zones)
+	bool enabled;                      ///< the house is available to build (true by default, but can be disabled by newgrf)
+
+	/* NewHouses properties */
+	HouseID substitute_id;             ///< which original house this one is based on
+	struct SpriteGroup *spritegroup;   ///< pointer to the different sprites of the house
+	HouseID override;                  ///< which house this one replaces
+	uint16 callback_mask;              ///< House callback flags
+	byte random_colour[4];             ///< 4 "random" colours
+	byte probability;                  ///< Relative probability of appearing (16 is the standard value)
+	HouseExtraFlags extra_flags;       ///< some more flags
+	HouseClassID class_id;             ///< defines the class this house has (grf file based) @See HouseGetVariable, prop 0x44
+	byte animation_frames;             ///< number of animation frames
+	byte animation_speed;              ///< amount of time between each of those frames
+	byte processing_time;              ///< Periodic refresh multiplier
+	byte minimum_life;                 ///< The minimum number of years this house will survive before the town rebuilds it
+
+	/* grf file related properties*/
+	uint8 local_id;                    ///< id defined by the grf file for this house
+	const struct GRFFile *grffile;     ///< grf file that introduced this house
+
+	/**
+	 * Get the cost for removing this house
+	 * @return the cost (inflation corrected etc)
+	 */
+	Money GetRemovalCost() const;
+
+};
+
+extern HouseSpec _house_specs[];
+
+static inline HouseSpec *GetHouseSpecs(HouseID house_id)
+{
+	assert(house_id < HOUSE_MAX);
+	return &_house_specs[house_id];
+}
+
+#endif /* HOUSE_H */
diff --git a/src/house_type.h b/src/house_type.h
new file mode 100644
index 000000000..da9ebe7c7
--- /dev/null
+++ b/src/house_type.h
@@ -0,0 +1,13 @@
+/* $Id$ */
+
+/** @file house_type.h declaration of basic house types and enums */
+
+#ifndef HOUSE_TYPE_H
+#define HOUSE_TYPE_H
+
+typedef uint16 HouseID;
+typedef uint16 HouseClassID;
+
+struct HouseSpec;
+
+#endif /* HOUSE_TYPE_H */
diff --git a/src/newgrf.h b/src/newgrf.h
index e05ef89fe..23122e780 100644
--- a/src/newgrf.h
+++ b/src/newgrf.h
@@ -11,6 +11,7 @@
 #include "industry_type.h"
 #include "station_type.h"
 #include "rail_type.h"
+#include "house_type.h"
 
 enum GrfLoadingStage {
 	GLS_FILESCAN,
diff --git a/src/newgrf_house.cpp b/src/newgrf_house.cpp
index b1e5c64fc..214734af1 100644
--- a/src/newgrf_house.cpp
+++ b/src/newgrf_house.cpp
@@ -21,6 +21,7 @@
 #include "company_func.h"
 #include "animated_tile_func.h"
 #include "company_base.h"
+#include "town.h"
 
 static BuildingCounts<uint32> _building_counts;
 static HouseClassMapping _class_mapping[HOUSE_CLASS_MAX];
diff --git a/src/newgrf_house.h b/src/newgrf_house.h
index ce08e1213..a67718486 100644
--- a/src/newgrf_house.h
+++ b/src/newgrf_house.h
@@ -8,6 +8,7 @@
 #include "town_type.h"
 #include "newgrf_callbacks.h"
 #include "tile_cmd.h"
+#include "house_type.h"
 
 /**
  * Makes class IDs unique to each GRF file.
diff --git a/src/newgrf_spritegroup.h b/src/newgrf_spritegroup.h
index bb5683518..20ad65ead 100644
--- a/src/newgrf_spritegroup.h
+++ b/src/newgrf_spritegroup.h
@@ -12,6 +12,7 @@
 #include "engine_type.h"
 #include "tile_type.h"
 #include "core/pool_type.hpp"
+#include "house_type.h"
 
 #include "newgrf_cargo.h"
 #include "newgrf_callbacks.h"
diff --git a/src/rail_cmd.cpp b/src/rail_cmd.cpp
index b279b164b..16e29a3d2 100644
--- a/src/rail_cmd.cpp
+++ b/src/rail_cmd.cpp
@@ -28,6 +28,7 @@
 #include "station_map.h"
 #include "functions.h"
 #include "elrail_func.h"
+#include "town.h"
 
 #include "table/strings.h"
 #include "table/railtypes.h"
diff --git a/src/road_cmd.cpp b/src/road_cmd.cpp
index caa365766..81d8b36b5 100644
--- a/src/road_cmd.cpp
+++ b/src/road_cmd.cpp
@@ -27,6 +27,7 @@
 #include "effectvehicle_func.h"
 #include "elrail_func.h"
 #include "roadveh.h"
+#include "town.h"
 
 #include "table/sprites.h"
 #include "table/strings.h"
diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp
index 2b1bd15e6..78c86bb43 100644
--- a/src/saveload/afterload.cpp
+++ b/src/saveload/afterload.cpp
@@ -28,6 +28,7 @@
 #include "../company_func.h"
 #include "../road_cmd.h"
 #include "../ai/ai.hpp"
+#include "../town.h"
 
 #include "table/strings.h"
 
diff --git a/src/saveload/town_sl.cpp b/src/saveload/town_sl.cpp
index 1c621aab6..2667997f0 100644
--- a/src/saveload/town_sl.cpp
+++ b/src/saveload/town_sl.cpp
@@ -6,7 +6,7 @@
 #include "../newgrf_house.h"
 #include "../newgrf_commons.h"
 #include "../variables.h"
-#include "../town_map.h"
+#include "../town.h"
 
 #include "saveload.h"
 
diff --git a/src/town.h b/src/town.h
index 0f34d1fd3..a55d45e3d 100644
--- a/src/town.h
+++ b/src/town.h
@@ -19,77 +19,7 @@
 #include "economy_type.h"
 #include "map_type.h"
 #include "command_type.h"
-
-enum {
-	HOUSE_NO_CLASS   = 0,
-	NEW_HOUSE_OFFSET = 110,
-	HOUSE_MAX        = 512,
-	INVALID_TOWN     = 0xFFFF,
-	INVALID_HOUSE_ID = 0xFFFF,
-
-	/* There can only be as many classes as there are new houses, plus one for
-	 * NO_CLASS, as the original houses don't have classes. */
-	HOUSE_CLASS_MAX  = HOUSE_MAX - NEW_HOUSE_OFFSET + 1,
-};
-
-enum BuildingFlags {
-	TILE_NO_FLAG         =       0,
-	TILE_SIZE_1x1        = 1U << 0,
-	TILE_NOT_SLOPED      = 1U << 1,
-	TILE_SIZE_2x1        = 1U << 2,
-	TILE_SIZE_1x2        = 1U << 3,
-	TILE_SIZE_2x2        = 1U << 4,
-	BUILDING_IS_ANIMATED = 1U << 5,
-	BUILDING_IS_CHURCH   = 1U << 6,
-	BUILDING_IS_STADIUM  = 1U << 7,
-	BUILDING_HAS_1_TILE  = TILE_SIZE_1x1 | TILE_SIZE_2x1 | TILE_SIZE_1x2 | TILE_SIZE_2x2,
-	BUILDING_HAS_2_TILES = TILE_SIZE_2x1 | TILE_SIZE_1x2 | TILE_SIZE_2x2,
-	BUILDING_2_TILES_X   = TILE_SIZE_2x1 | TILE_SIZE_2x2,
-	BUILDING_2_TILES_Y   = TILE_SIZE_1x2 | TILE_SIZE_2x2,
-	BUILDING_HAS_4_TILES = TILE_SIZE_2x2,
-};
-
-DECLARE_ENUM_AS_BIT_SET(BuildingFlags)
-
-enum HouseZonesBits {
-	HZB_BEGIN     = 0,
-	HZB_TOWN_EDGE = 0,
-	HZB_TOWN_OUTSKIRT,
-	HZB_TOWN_OUTER_SUBURB,
-	HZB_TOWN_INNER_SUBURB,
-	HZB_TOWN_CENTRE,
-	HZB_END,
-};
-assert_compile(HZB_END == 5);
-
-DECLARE_POSTFIX_INCREMENT(HouseZonesBits)
-
-enum HouseZones {                  ///< Bit  Value       Meaning
-	HZ_NOZNS             = 0x0000,  ///<       0          This is just to get rid of zeros, meaning none
-	HZ_ZON1              = 1U << HZB_TOWN_EDGE,    ///< 0..4 1,2,4,8,10  which town zones the building can be built in, Zone1 been the further suburb
-	HZ_ZON2              = 1U << HZB_TOWN_OUTSKIRT,
-	HZ_ZON3              = 1U << HZB_TOWN_OUTER_SUBURB,
-	HZ_ZON4              = 1U << HZB_TOWN_INNER_SUBURB,
-	HZ_ZON5              = 1U << HZB_TOWN_CENTRE,  ///<  center of town
-	HZ_ZONALL            = 0x001F,  ///<       1F         This is just to englobe all above types at once
-	HZ_SUBARTC_ABOVE     = 0x0800,  ///< 11    800        can appear in sub-arctic climate above the snow line
-	HZ_TEMP              = 0x1000,  ///< 12   1000        can appear in temperate climate
-	HZ_SUBARTC_BELOW     = 0x2000,  ///< 13   2000        can appear in sub-arctic climate below the snow line
-	HZ_SUBTROPIC         = 0x4000,  ///< 14   4000        can appear in subtropical climate
-	HZ_TOYLND            = 0x8000   ///< 15   8000        can appear in toyland climate
-};
-
-DECLARE_ENUM_AS_BIT_SET(HouseZones)
-
-enum HouseExtraFlags {
-	NO_EXTRA_FLAG            =       0,
-	BUILDING_IS_HISTORICAL   = 1U << 0,  ///< this house will only appear during town generation in random games, thus the historical
-	BUILDING_IS_PROTECTED    = 1U << 1,  ///< towns and AI will not remove this house, while human players will be able to
-	SYNCHRONISED_CALLBACK_1B = 1U << 2,  ///< synchronized callback 1B will be performed, on multi tile houses
-	CALLBACK_1A_RANDOM_BITS  = 1U << 3,  ///< callback 1A needs random bits
-};
-
-DECLARE_ENUM_AS_BIT_SET(HouseExtraFlags)
+#include "town_map.h"
 
 template <typename T>
 struct BuildingCounts {
@@ -100,6 +30,8 @@ struct BuildingCounts {
 static const uint CUSTOM_TOWN_NUMBER_DIFFICULTY  = 4; ///< value for custom town number in difficulty settings
 static const uint CUSTOM_TOWN_MAX_NUMBER = 5000;  ///< this is the maximum number of towns a user can specify in customisation
 
+static const uint INVALID_TOWN = 0xFFFF;
+
 typedef Pool<Town, TownID, 64, 64000> TownPool;
 extern TownPool _town_pool;
 
@@ -205,48 +137,10 @@ struct Town : TownPool::PoolItem<&_town_pool> {
 	}
 };
 
-struct HouseSpec {
-	/* Standard properties */
-	Year min_year;                     ///< introduction year of the house
-	Year max_year;                     ///< last year it can be built
-	byte population;                   ///< population (Zero on other tiles in multi tile house.)
-	byte removal_cost;                 ///< cost multiplier for removing it
-	StringID building_name;            ///< building name
-	uint16 remove_rating_decrease;     ///< rating decrease if removed
-	byte mail_generation;              ///< mail generation multiplier (tile based, as the acceptances below)
-	byte cargo_acceptance[3];          ///< acceptance level for the cargo slots
-	CargoID accepts_cargo[3];          ///< 3 input cargo slots
-	BuildingFlags building_flags;      ///< some flags that describe the house (size, stadium etc...)
-	HouseZones building_availability;  ///< where can it be built (climates, zones)
-	bool enabled;                      ///< the house is available to build (true by default, but can be disabled by newgrf)
-
-	/* NewHouses properties */
-	HouseID substitute_id;             ///< which original house this one is based on
-	struct SpriteGroup *spritegroup;   ///< pointer to the different sprites of the house
-	HouseID override;                  ///< which house this one replaces
-	uint16 callback_mask;              ///< House callback flags
-	byte random_colour[4];             ///< 4 "random" colours
-	byte probability;                  ///< Relative probability of appearing (16 is the standard value)
-	HouseExtraFlags extra_flags;       ///< some more flags
-	HouseClassID class_id;             ///< defines the class this house has (grf file based) @See HouseGetVariable, prop 0x44
-	byte animation_frames;             ///< number of animation frames
-	byte animation_speed;              ///< amount of time between each of those frames
-	byte processing_time;              ///< Periodic refresh multiplier
-	byte minimum_life;                 ///< The minimum number of years this house will survive before the town rebuilds it
-
-	/* grf file related properties*/
-	uint8 local_id;                    ///< id defined by the grf file for this house
-	const struct GRFFile *grffile;     ///< grf file that introduced this house
-
-	/**
-	 * Get the cost for removing this house
-	 * @return the cost (inflation corrected etc)
-	 */
-	Money GetRemovalCost() const;
-
-};
-
-extern HouseSpec _house_specs[HOUSE_MAX];
+static inline Town *GetTownByTile(TileIndex tile)
+{
+	return Town::Get(GetTownIndex(tile));
+}
 
 uint32 GetWorldPopulation();
 
@@ -268,10 +162,6 @@ enum TownRatingCheckType {
  * in TTD. */
 static const byte TOWN_GROWTH_FREQUENCY = 70;
 
-/** Simple value that indicates the house has reached the final stage of
- * construction. */
-static const byte TOWN_HOUSE_COMPLETED = 3;
-
 /** This enum is used in conjonction with town->flags.
  * IT simply states what bit is used for.
  * It is pretty unrealistic (IMHO) to only have one church/stadium
@@ -286,11 +176,6 @@ enum {
 
 bool CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type);
 
-static inline HouseSpec *GetHouseSpecs(HouseID house_id)
-{
-	assert(house_id < HOUSE_MAX);
-	return &_house_specs[house_id];
-}
 
 TileIndexDiff GetHouseNorthPart(HouseID &house);
 
diff --git a/src/town_cmd.cpp b/src/town_cmd.cpp
index 085d6f250..a14c1330d 100644
--- a/src/town_cmd.cpp
+++ b/src/town_cmd.cpp
@@ -43,6 +43,7 @@
 #include "subsidy_func.h"
 #include "core/smallmap_type.hpp"
 #include "core/pool_func.hpp"
+#include "town.h"
 
 #include "table/strings.h"
 #include "table/town_land.h"
diff --git a/src/town_map.h b/src/town_map.h
index e1007a030..66ff29cd0 100644
--- a/src/town_map.h
+++ b/src/town_map.h
@@ -5,8 +5,9 @@
 #ifndef TOWN_MAP_H
 #define TOWN_MAP_H
 
-#include "town.h"
 #include "tile_map.h"
+#include "town_type.h"
+#include "house.h"
 
 /**
  * Get the index of which town this house/street is attached to.
@@ -34,16 +35,6 @@ static inline void SetTownIndex(TileIndex t, TownID index)
 }
 
 /**
- * Gets the town associated with the house or road tile
- * @param t the tile to get the town of
- * @return the town
- */
-static inline Town *GetTownByTile(TileIndex t)
-{
-	return Town::Get(GetTownIndex(t));
-}
-
-/**
  * Get the type of this house, which is an index into the house spec array
  * Since m4 is only a byte and we want to support 512 houses, we use the bit 6
  * of m3 as an additional bit to house type.
diff --git a/src/town_type.h b/src/town_type.h
index d56b934df..9c4a4b6e6 100644
--- a/src/town_type.h
+++ b/src/town_type.h
@@ -8,11 +8,7 @@
 #include "core/enum_type.hpp"
 
 typedef uint16 TownID;
-typedef uint16 HouseID;
-typedef uint16 HouseClassID;
-
 struct Town;
-struct HouseSpec;
 
 /** Supported initial town sizes */
 enum TownSize {