(svn r12504) [NoAI] -Documentation: the last few files which now are consistent in their comments (anyway, so I hope :)) noai
authortruebrain
Mon, 31 Mar 2008 08:42:20 +0000
branchnoai
changeset 9838 0839682a601b
parent 9837 c9ec4f82e0d0
child 9839 ea94d60d13e7
(svn r12504) [NoAI] -Documentation: the last few files which now are consistent in their comments (anyway, so I hope :))
src/ai/api/ai_bridge.hpp
src/ai/api/ai_order.hpp
src/ai/api/ai_road.hpp
src/ai/api/ai_sign.hpp
src/ai/api/ai_station.hpp
src/ai/api/ai_tile.hpp
src/ai/api/ai_town.hpp
src/ai/api/ai_tunnel.hpp
src/ai/api/ai_vehicle.hpp
--- a/src/ai/api/ai_bridge.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_bridge.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -95,7 +95,7 @@
 	 * @pre 'start' and 'end' are in a straight line, i.e.
 	 *  AIMap::GetTileX(start) == AIMap::GetTileX(end) or
 	 *  AIMap::GetTileY(start) == AIMap::GetTileY(end).
-	 * @pre VehicleType is either AIVehicle::VEHICLE_RAIL or AIVEHICLE::VEHICLE_ROAD.
+	 * @pre 'vehicle_type' is either AIVehicle::VEHICLE_RAIL or AIVEHICLE::VEHICLE_ROAD.
 	 * @return Whether the bridge has been/can be build or not.
 	 */
 	static bool BuildBridge(AIVehicle::VehicleType vehicle_type, BridgeID bridge_id, TileIndex start, TileIndex end);
--- a/src/ai/api/ai_order.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_order.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -40,99 +40,99 @@
 
 	/**
 	 * Checks whether the given order id is valid for the given vehicle.
-	 * @param vehicle_id the vehicle to check the order index for.
-	 * @param order_id   the order index to check.
+	 * @param vehicle_id The vehicle to check the order index for.
+	 * @param order_id The order index to check.
 	 * @pre AIVehicle::IsValidVehicle(vehicle_id).
-	 * @return true if and only if the order_id is valid for the given vehicle.
+	 * @return True if and only if the order_id is valid for the given vehicle.
 	 */
 	static bool IsValidVehicleOrder(VehicleID vehicle_id, uint32 order_id);
 
 	/**
 	 * Checks whether the given order flags are valid for the given destination.
-	 * @param destination the destination of the order.
-	 * @param order_flags the flags given to the order.
-	 * @return true if and only if the order_flags are valid for the given location.
+	 * @param destination The destination of the order.
+	 * @param order_flags The flags given to the order.
+	 * @return True if and only if the order_flags are valid for the given location.
 	 */
 	static bool AreOrderFlagsValid(TileIndex destination, AIOrderFlags order_flags);
 
 	/**
 	 * Returns the number of orders for the given vehicle.
-	 * @param vehicle_id the vehicle to get the order count of.
+	 * @param vehicle_id The vehicle to get the order count of.
 	 * @pre AIVehicle::IsValidVehicle(vehicle_id).
-	 * @return the number of orders for the given vehicle or a negative
+	 * @return The number of orders for the given vehicle or a negative
 	 *   value when the vehicle does not exist.
 	 */
 	static int32 GetNumberOfOrders(VehicleID vehicle_id);
 
 	/**
 	 * Gets the destination of the given order for the given vehicle.
-	 * @param vehicle_id the vehicle to get the destination for.
-	 * @param order_id   the order to get the destination for.
+	 * @param vehicle_id The vehicle to get the destination for.
+	 * @param order_id The order to get the destination for.
 	 * @pre IsValidVehicleOrder(vehicle_id, order_id).
-	 * @return the destination tile of the order.
+	 * @return The destination tile of the order.
 	 */
 	static TileIndex GetOrderDestination(VehicleID vehicle_id, uint32 order_id);
 
 	/**
 	 * Gets the AIOrderFlags of the given order for the given vehicle.
-	 * @param vehicle_id the vehicle to get the destination for.
-	 * @param order_id   the order to get the destination for.
+	 * @param vehicle_id The vehicle to get the destination for.
+	 * @param order_id The order to get the destination for.
 	 * @pre IsValidVehicleOrder(vehicle_id, order_id).
-	 * @return the AIOrderFlags of the order.
+	 * @return The AIOrderFlags of the order.
 	 */
 	static AIOrderFlags GetOrderFlags(VehicleID vehicle_id, uint32 order_id);
 
 	/**
 	 * Appends an order to the end of the vehicle's order list.
-	 * @param vehicle_id  the vehicle to append the order to.
-	 * @param destination the destination of the order.
-	 * @param order_flags the flags given to the order.
+	 * @param vehicle_id The vehicle to append the order to.
+	 * @param destination The destination of the order.
+	 * @param order_flags The flags given to the order.
 	 * @pre AIVehicle::IsValidVehicle(vehicle_id).
 	 * @pre AreOrderFlagsValid(destination, order_flags).
-	 * @return true if and only if the order was appended.
+	 * @return True if and only if the order was appended.
 	 */
 	static bool AppendOrder(VehicleID vehicle_id, TileIndex destination, AIOrderFlags order_flags);
 
 	/**
 	 * Inserts an order before the given order_id into the vehicle's order list.
-	 * @param vehicle_id  the vehicle to add the order to.
-	 * @param order_id    the order to place the new order before.
-	 * @param destination the destination of the order.
-	 * @param order_flags the flags given to the order.
+	 * @param vehicle_id The vehicle to add the order to.
+	 * @param order_id The order to place the new order before.
+	 * @param destination The destination of the order.
+	 * @param order_flags The flags given to the order.
 	 * @pre IsValidVehicleOrder(vehicle_id, order_id).
 	 * @pre AreOrderFlagsValid(destination, order_flags).
-	 * @return true if and only if the order was inserted.
+	 * @return True if and only if the order was inserted.
 	 */
 	static bool InsertOrder(VehicleID vehicle_id, uint32 order_id, TileIndex destination, AIOrderFlags order_flags);
 
 	/**
 	 * Removes an order from the vehicle's order list.
-	 * @param vehicle_id  the vehicle to remove the order from.
-	 * @param order_id    the order to remove from the order list.
+	 * @param vehicle_id The vehicle to remove the order from.
+	 * @param order_id The order to remove from the order list.
 	 * @pre AIVehicle::IsValidVehicleOrder(vehicle_id, order_id).
-	 * @return true if and only if the order was removed.
+	 * @return True if and only if the order was removed.
 	 */
 	static bool RemoveOrder(VehicleID vehicle_id, uint32 order_id);
 
 	/**
 	 * Changes the order flags of the given order.
-	 * @param vehicle_id  the vehicle to change the order of.
-	 * @param order_id    the order to change.
-	 * @param order_flags the new flags given to the order.
+	 * @param vehicle_id The vehicle to change the order of.
+	 * @param order_id The order to change.
+	 * @param order_flags The new flags given to the order.
 	 * @pre IsValidVehicleOrder(vehicle_id, order_id).
 	 * @pre AreOrderFlagsValid(GetOrderDestination(vehicle_id, order_id), order_flags).
-	 * @return true if and only if the order was changed.
+	 * @return True if and only if the order was changed.
 	 */
 	static bool ChangeOrder(VehicleID vehicle_id, uint32 order_id, AIOrderFlags order_flags);
 
 	/**
 	 * Move an order inside the orderlist
-	 * @param vehicle_id  the vehicle to move the orders.
-	 * @param order_id_move    the order to move.
-	 * @param order_id_target  the target order
+	 * @param vehicle_id The vehicle to move the orders.
+	 * @param order_id_move The order to move.
+	 * @param order_id_target The target order
 	 * @pre IsValidVehicleOrder(vehicle_id, order_id_move).
 	 * @pre IsValidVehicleOrder(vehicle_id, order_id_target).
-	 * @return true if and only if the order was moved.
+	 * @return True if and only if the order was moved.
 	 * @note If the order is moved to a lower place (e.g. from 7 to 2)
 	 *  the target order is moved upwards (e.g. 3). If the order is moved
 	 *  to a higher place (e.g. from 7 to 9) the target will be moved
@@ -141,32 +141,32 @@
 	static bool MoveOrder(VehicleID vehicle_id, uint32 order_id_move, uint32 order_id_target);
 
 	/**
-	 * Copies the orders from another vehicle. The orders of the main
-	 * vehicle are going to be the orders of the changed vehicle.
-	 * @param vehicle_id      the vehicle to copy the orders to.
-	 * @param main_vehicle_id the vehicle to copy the orders from.
+	 * Copies the orders from another vehicle. The orders of the main vehicle
+	 *  are going to be the orders of the changed vehicle.
+	 * @param vehicle_id The vehicle to copy the orders to.
+	 * @param main_vehicle_id The vehicle to copy the orders from.
 	 * @pre AIVehicle::IsValidVehicle(vehicle_id).
 	 * @pre AIVehicle::IsValidVehicle(main_vehicle_id).
-	 * @return true if and only if the copying succeeded.
+	 * @return True if and only if the copying succeeded.
 	 */
 	static bool CopyOrders(VehicleID vehicle_id, VehicleID main_vehicle_id);
 
 	/**
 	 * Shares the orders between two vehicles. The orders of the main
 	 * vehicle are going to be the orders of the changed vehicle.
-	 * @param vehicle_id      the vehicle to add to the shared order list.
-	 * @param main_vehicle_id the vehicle to share the orders with.
+	 * @param vehicle_id The vehicle to add to the shared order list.
+	 * @param main_vehicle_id The vehicle to share the orders with.
 	 * @pre AIVehicle::IsValidVehicle(vehicle_id).
 	 * @pre AIVehicle::IsValidVehicle(main_vehicle_id).
-	 * @return true if and only if the sharing succeeded.
+	 * @return True if and only if the sharing succeeded.
 	 */
 	static bool ShareOrders(VehicleID vehicle_id, VehicleID main_vehicle_id);
 
 	/**
 	 * Removes the given vehicle from a shared orders list.
-	 * @param vehicle_id the vehicle to remove from the shared order list.
+	 * @param vehicle_id The vehicle to remove from the shared order list.
 	 * @pre AIVehicle::IsValidVehicle(vehicle_id).
-	 * @return true if and only if the unsharing succeeded.
+	 * @return True if and only if the unsharing succeeded.
 	 */
 	static bool UnshareOrders(VehicleID vehicle_id);
 };
--- a/src/ai/api/ai_road.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_road.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -15,56 +15,56 @@
 	static const char *GetClassName() { return "AIRoad"; }
 
 	/**
-	 * Checks whether the given tile is actually a tile with road that
-	 * can be used to traverse a tile. This excludes road depots and
-	 * 'normal' road stations, but includes drive through stations.
-	 * @param tile the tile to check.
+	 * Checks whether the given tile is actually a tile with road that can be
+	 *  used to traverse a tile. This excludes road depots and 'normal' road
+	 *  stations, but includes drive through stations.
+	 * @param tile The tile to check.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if and only if the tile has road.
+	 * @return True if and only if the tile has road.
 	 */
 	static bool IsRoadTile(TileIndex tile);
 
 	/**
 	 * Checks whether the given tile is actually a tile with a road depot.
-	 * @param tile the tile to check.
+	 * @param tile The tile to check.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if and only if the tile has a road depot.
+	 * @return True if and only if the tile has a road depot.
 	 */
 	static bool IsRoadDepotTile(TileIndex tile);
 
 	/**
 	 * Checks whether the given tile is actually a tile with a road station.
-	 * @param tile the tile to check.
+	 * @param tile The tile to check.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if and only if the tile has a road station.
+	 * @return True if and only if the tile has a road station.
 	 */
 	static bool IsRoadStationTile(TileIndex tile);
 
 	/**
 	 * Checks whether the given tile is actually a tile with a drive through
-	 * road station.
-	 * @param tile the tile to check.
+	 *  road station.
+	 * @param tile The tile to check.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if and only if the tile has a drive through road station.
+	 * @return True if and only if the tile has a drive through road station.
 	 */
 	static bool IsDriveThroughRoadStationTile(TileIndex tile);
 
 	/**
 	 * Checks whether the given tiles are directly connected, i.e. whether
-	 * a road vehicle can travel from the center of the first tile to the
-	 * center of the second tile.
-	 * @param t1 the source tile.
-	 * @param t2 the destination tile.
-	 * @pre AIMap::IsValidTile(t1).
-	 * @pre AIMap::IsValidTile(t2).
-	 * @pre t1 and t2 are directly neighbouring tiles.
-	 * @return true if and only if a road vehicle can go from t1 to t2.
+	 *  a road vehicle can travel from the center of the first tile to the
+	  * center of the second tile.
+	 * @param tile_from The source tile.
+	 * @param tile_to The destination tile.
+	 * @pre AIMap::IsValidTile(tile_from).
+	 * @pre AIMap::IsValidTile(tile_to).
+	 * @pre 'tile_from' and 'tile_to' are directly neighbouring tiles.
+	 * @return True if and only if a road vehicle can go from tile_from to tile_to.
 	 */
-	static bool AreRoadTilesConnected(TileIndex t1, TileIndex t2);
+	static bool AreRoadTilesConnected(TileIndex tile_from, TileIndex tile_to);
 
 	/**
 	 * Count how many neighbours are road.
-	 * @param tile the tile to check on.
+	 * @param tile The tile to check on.
 	 * @pre AIMap::IsValidTile(tile).
 	 * @return 0 means no neighbour road; max value is 4.
 	 */
@@ -72,128 +72,126 @@
 
 	/**
 	 * Gets the tile in front of a road depot.
-	 * @param depot the road depot tile.
+	 * @param depot The road depot tile.
 	 * @pre IsRoadDepotTile(depot).
-	 * @return the tile in front of the depot.
+	 * @return The tile in front of the depot.
 	 */
 	static TileIndex GetRoadDepotFrontTile(TileIndex depot);
 
 	/**
 	 * Gets the tile in front of a road station.
-	 * @param station the road station tile.
+	 * @param station The road station tile.
 	 * @pre IsRoadStationTile(station).
-	 * @return the tile in front of the road station.
+	 * @return The tile in front of the road station.
 	 */
 	static TileIndex GetRoadStationFrontTile(TileIndex station);
 
 	/**
 	 * Gets the tile at the back of a drive through road station.
-	 * So, one side of the drive through station is retrieved with
-	 * GetTileInFrontOfStation, the other with this function.
-	 * @param station the road station tile.
+	 *  So, one side of the drive through station is retrieved with
+	 *  GetTileInFrontOfStation, the other with this function.
+	 * @param station The road station tile.
 	 * @pre IsDriveThroughRoadStationTile(station).
-	 * @return the tile at the back of the drive through road station.
+	 * @return The tile at the back of the drive through road station.
 	 */
 	static TileIndex GetDriveThroughBackTile(TileIndex station);
 
 	/**
-	 * Builds a road from the center of tile start to the
-	 * center of tile end.
-	 * @param start the start tile of the road.
-	 * @param end   the end tile of the road.
-	 * @pre start is not equal to end
+	 * Builds a road from the center of tile start to the center of tile end.
+	 * @param start The start tile of the road.
+	 * @param end The end tile of the road.
+	 * @pre 'start' is not equal to 'end'.
 	 * @pre AIMap::IsValidTile(start).
 	 * @pre AIMap::IsValidTile(end).
-	 * @pre start and end are in a straight line, i.e.
+	 * @pre 'start' and 'end' are in a straight line, i.e.
 	 *  AIMap::GetTileX(start) == AIMap::GetTileX(end) or
 	 *  AIMap::GetTileY(start) == AIMap::GetTileY(end).
-	 * @return whether the road has been/can be build or not.
+	 * @return Whether the road has been/can be build or not.
 	 */
 	static bool BuildRoad(TileIndex start, TileIndex end);
 
 	/**
-	 * Builds a road from the edge of tile start to the
-	 * edge of tile end (both included).
-	 * @param start the start tile of the road.
-	 * @param end   the end tile of the road.
-	 * @pre start is not equal to end
+	 * Builds a road from the edge of tile start to the edge of tile end (both
+	 *  included).
+	 * @param start The start tile of the road.
+	 * @param end The end tile of the road.
+	 * @pre 'start' is not equal to 'end'.
 	 * @pre AIMap::IsValidTile(start).
 	 * @pre AIMap::IsValidTile(end).
-	 * @pre start and end are in a straight line, i.e.
+	 * @pre 'start' and 'end' are in a straight line, i.e.
 	 *  AIMap::GetTileX(start) == AIMap::GetTileX(end) or
 	 *  AIMap::GetTileY(start) == AIMap::GetTileY(end).
-	 * @return whether the road has been/can be build or not.
+	 * @return Whether the road has been/can be build or not.
 	 */
 	static bool BuildRoadFull(TileIndex start, TileIndex end);
 
 	/**
 	 * Builds a road depot.
-	 * @param tile  place to build the depot.
-	 * @param front the tile exactly in front of the depot
+	 * @param tile Place to build the depot.
+	 * @param front The tile exactly in front of the depot.
 	 * @pre AIMap::IsValidTile(tile).
 	 * @pre AIMap::IsValidTile(front).
-	 * @pre tile is not equal to front
-	 * @return whether the road depot has been/can be build or not.
+	 * @pre Tile is not equal to front.
+	 * @return Whether the road depot has been/can be build or not.
 	 */
 	static bool BuildRoadDepot(TileIndex tile, TileIndex front);
 
 	/**
 	 * Builds a road bus or truck station.
-	 * @param tile  place to build the depot.
-	 * @param front the tile exactly in front of the station.
+	 * @param tile Place to build the depot.
+	 * @param front The tile exactly in front of the station.
 	 *   For drive-through stations either entrance side can be used.
-	 * @param truck whether to build a truck (true) or bus (false) station.
-	 * @param drive_through whether to make the station drive through or not.
+	 * @param truck Whether to build a truck (true) or bus (false) station.
+	 * @param drive_through Whether to make the station drive through or not.
 	 * @pre AIMap::IsValidTile(tile).
 	 * @pre AIMap::IsValidTile(front).
-	 * @pre tile is not equal to front
-	 * @return whether the station has been/can be build or not.
+	 * @pre 'tile' is not equal to 'front'.
+	 * @return Whether the station has been/can be build or not.
 	 */
 	static bool BuildRoadStation(TileIndex tile, TileIndex front, bool truck, bool drive_through);
 
 	/**
-	 * Removes a road from the center of tile start to the
-	 * center of tile end.
-	 * @param start the start tile of the road.
-	 * @param end   the end tile of the road.
+	 * Removes a road from the center of tile start to the center of tile end.
+	 * @param start The start tile of the road.
+	 * @param end The end tile of the road.
 	 * @pre AIMap::IsValidTile(start).
 	 * @pre AIMap::IsValidTile(end).
-	 * @pre start and end are in a straight line, i.e.
+	 * @pre 'start' and 'end' are in a straight line, i.e.
 	 *  AIMap::GetTileX(start) == AIMap::GetTileX(end) or
 	 *  AIMap::GetTileY(start) == AIMap::GetTileY(end).
-	 * @return whether the road has been/can be removed or not.
+	 * @return Whether the road has been/can be removed or not.
 	 */
 	static bool RemoveRoad(TileIndex start, TileIndex end);
 
 	/**
-	 * Removes a road from the edge of tile start to the
-	 * edge of tile end (both included).
-	 * @param start the start tile of the road.
-	 * @param end   the end tile of the road.
+	 * Removes a road from the edge of tile start to the edge of tile end (both
+	 *  included).
+	 * @param start The start tile of the road.
+	 * @param end The end tile of the road.
 	 * @pre AIMap::IsValidTile(start).
 	 * @pre AIMap::IsValidTile(end).
-	 * @pre start and end are in a straight line, i.e.
+	 * @pre 'start' and 'end' are in a straight line, i.e.
 	 *  AIMap::GetTileX(start) == AIMap::GetTileX(end) or
 	 *  AIMap::GetTileY(start) == AIMap::GetTileY(end).
-	 * @return whether the road has been/can be removed or not.
+	 * @return Whether the road has been/can be removed or not.
 	 */
 	static bool RemoveRoadFull(TileIndex start, TileIndex end);
 
 	/**
 	 * Removes a road depot.
-	 * @param tile place to remove the depot from.
+	 * @param tile Place to remove the depot from.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @pre tile is a road depot.
-	 * @return whether the road depot has been/can be removed or not.
+	 * @pre Tile is a road depot.
+	 * @return Whether the road depot has been/can be removed or not.
 	 */
 	static bool RemoveRoadDepot(TileIndex tile);
 
 	/**
 	 * Removes a road bus or truck station.
-	 * @param tile place to remove the station from.
+	 * @param tile Place to remove the station from.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @pre tile is a road station.
-	 * @return whether the station has been/can be removed or not.
+	 * @pre Tile is a road station.
+	 * @return Whether the station has been/can be removed or not.
 	 */
 	static bool RemoveRoadStation(TileIndex tile);
 };
--- a/src/ai/api/ai_sign.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_sign.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -16,51 +16,48 @@
 
 	/**
 	 * Gets the maximum sign index; there are no valid signs with a higher index.
-	 * @return the maximum sign index.
-	 * @post return value is always non-negative.
+	 * @return The maximum sign index.
+	 * @post Return value is always non-negative.
 	 */
 	static SignID GetMaxSignID();
 
 	/**
 	 * Gets the number of signs. This is different than GetMaxSignID()
 	 *   because of the way OpenTTD works internally.
-	 * @return the number of signs.
-	 * @post return value is always non-negative.
+	 * @return The number of signs.
+	 * @post Return value is always non-negative.
 	 */
 	static int32 GetSignCount();
 
 	/**
 	 * Checks whether the given sign index is valid.
-	 * @param sign_id the index to check.
-	 * @return true if and only if the sign is valid.
+	 * @param sign_id The index to check.
+	 * @return True if and only if the sign is valid.
 	 */
 	static bool IsValidSign(SignID sign_id);
 
 	/**
 	 * Get the text on the sign.
-	 * @param sign_id the sign to get the text of.
-	 * @pre sign_id has to be valid (use IsValidSign()).
-	 * @return the text on the sign.
-	 * @note the returned name must be free'd (C++ only).
+	 * @param sign_id The sign to get the text of.
+	 * @pre IsValidSign(sign_id).
+	 * @return The text on the sign.
 	 */
 	static char *GetText(SignID sign_id);
 
 	/**
 	 * Gets the location of the sign.
-	 * @param sign_id the sign to get the location of.
-	 * @pre sign_id has to be valid (use IsValidSign()).
-	 * @return the location of the sign.
-	 * @post return value is always valid with AIMap::IsValidTile().
+	 * @param sign_id The sign to get the location of.
+	 * @pre IsValidSign(sign_id).
+	 * @return The location of the sign.
 	 */
 	static TileIndex GetLocation(SignID sign_id);
 
 	/**
 	 * Builds a sign on the map.
-	 * @param location the place to build the sign.
-	 * @param text     the text to place on the sign.
+	 * @param location The place to build the sign.
+	 * @param text The text to place on the sign.
 	 * @pre AIMap::IsValidTile(location).
-	 * @pre text is not NULL and non-empty, i.e. length is positive.
-	 * @return the SignID of the build sign (use IsValidSign() to check for validity).
+	 * @return The SignID of the build sign (use IsValidSign() to check for validity).
 	 *   In test-mode it returns 0 if successful, or any other value to indicate
 	 *   failure.
 	 */
@@ -68,9 +65,9 @@
 
 	/**
 	 * Removes a sign from the map.
-	 * @param sign_id the sign to remove.
-	 * @pre sign_id has to be valid (use IsValidSign()).
-	 * @return true if and only if the sign has been removed.
+	 * @param sign_id The sign to remove.
+	 * @pre IsValidSign(sign_id).
+	 * @return True if and only if the sign has been removed.
 	 */
 	static bool RemoveSign(SignID sign_id);
 };
--- a/src/ai/api/ai_station.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_station.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -19,69 +19,69 @@
 	 * Type of stations known in the game.
 	 */
 	enum StationType {
-		STATION_ANY        = 0x00,
-		STATION_TRAIN      = 0x01,
-		STATION_TRUCK_STOP = 0x02,
-		STATION_BUS_STOP   = 0x04,
-		STATION_AIRPORT    = 0x08,
-		STATION_DOCK       = 0x10,
+		STATION_ANY        = 0x00, //!< All station types
+		STATION_TRAIN      = 0x01, //!< Train station
+		STATION_TRUCK_STOP = 0x02, //!< Truck station
+		STATION_BUS_STOP   = 0x04, //!< Bus station
+		STATION_AIRPORT    = 0x08, //!< Airport
+		STATION_DOCK       = 0x10, //!< Dock
 	};
 
 	/**
 	 * Checks whether the given station is valid and owned by you.
-	 * @param station_id the station to check.
-	 * @return true if and only if the station is valid.
+	 * @param station_id The station to check.
+	 * @return True if and only if the station is valid.
 	 */
 	static bool IsValidStation(StationID station_id);
 
 	/**
-	 * Get the stationID of a tile, if there is a station.
-	 * @param tile the tile to find the stationID of
+	 * Get the StationID of a tile, if there is a station.
+	 * @param tile The tile to find the stationID of
 	 * @return StationID of the station.
-	 * @post use IsValidStation to see if the station is valid.
+	 * @post Use IsValidStation() to see if the station is valid.
 	 */
 	static StationID GetStationID(TileIndex tile);
 
 	/**
 	 * Get the name of a station.
-	 * @param station_id the station to get the name of.
+	 * @param station_id The station to get the name of.
 	 * @pre IsValidStation(station_id).
-	 * @return the name of the station.
+	 * @return The name of the station.
 	 */
 	static char *GetName(StationID station_id);
 
 	/**
 	 * Get the current location of a station.
-	 * @param station_id the station to get the location of.
+	 * @param station_id The station to get the location of.
 	 * @pre IsValidStation(station_id).
-	 * @return the tile the station is currently on.
+	 * @return The tile the station is currently on.
 	 */
 	static TileIndex GetLocation(StationID station_id);
 
 	/**
 	 * See how much cargo there is waiting on a station.
-	 * @param station_id the station to get the cargo-waiting of.
-	 * @param cargo_id the cargo to get the cargo-waiting of.
+	 * @param station_id The station to get the cargo-waiting of.
+	 * @param cargo_id The cargo to get the cargo-waiting of.
 	 * @pre IsValidStation(station_id).
 	 * @pre IsValidCargo(cargo_id).
-	 * @return the amount of units waiting at the station.
+	 * @return The amount of units waiting at the station.
 	 */
 	static int32 GetCargoWaiting(StationID station_id, CargoID cargo_id);
 
 	/**
 	 * See how high the rating is of a cargo on a station.
-	 * @param station_id the station to get the cargo-rating of.
-	 * @param cargo_id the cargo to get the cargo-rating of.
+	 * @param station_id The station to get the cargo-rating of.
+	 * @param cargo_id The cargo to get the cargo-rating of.
 	 * @pre IsValidStation(station_id).
 	 * @pre IsValidCargo(cargo_id).
-	 * @return the rating in percent of the cargo on the station.
+	 * @return The rating in percent of the cargo on the station.
 	 */
 	static int32 GetCargoRating(StationID station_id, CargoID cargo_id);
 
 	/**
 	 * Get the coverage radius of this type of station.
-	 * @param type the type of station.
-	 * @return the radius in tiles.
+	 * @param type The type of station.
+	 * @return The radius in tiles.
 	 */
 	static int32 GetCoverageRadius(AIStation::StationType type);
 
@@ -103,6 +103,7 @@
 	 */
 	static int32 GetDistanceSquareToTile(StationID station_id, TileIndex tile);
 };
+
 DECLARE_ENUM_AS_BIT_SET(AIStation::StationType);
 
 #endif /* AI_STATION_HPP */
--- a/src/ai/api/ai_tile.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_tile.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -17,66 +17,67 @@
 	/**
 	 * Enumeration for the slope-type (from slopes.h).
 	 *
-	 * This enumeration use the chars N,E,S,W corresponding the
-	 * direction north, east, south and west. The top corner of a tile
-	 * is the north-part of the tile. The whole slope is encoded with
-	 * 5 bits, 4 bits for each corner and 1 bit for a steep-flag.
+	 * This enumeration use the chars N, E, S, W corresponding the
+	 *  direction North, East, South and West. The top corner of a tile
+	 *  is the north-part of the tile.
 	 */
 	enum Slope {
-		SLOPE_FLAT     = 0x00,                                  ///< a flat tile
-		SLOPE_W        = 0x01,                                  ///< the west corner of the tile is raised
-		SLOPE_S        = 0x02,                                  ///< the south corner of the tile is raised
-		SLOPE_E        = 0x04,                                  ///< the east corner of the tile is raised
-		SLOPE_N        = 0x08,                                  ///< the north corner of the tile is raised
-		SLOPE_STEEP    = 0x10,                                  ///< indicates the slope is steep
-		SLOPE_NW       = SLOPE_N | SLOPE_W,                     ///< north and west corner are raised
-		SLOPE_SW       = SLOPE_S | SLOPE_W,                     ///< south and west corner are raised
-		SLOPE_SE       = SLOPE_S | SLOPE_E,                     ///< south and east corner are raised
-		SLOPE_NE       = SLOPE_N | SLOPE_E,                     ///< north and east corner are raised
-		SLOPE_EW       = SLOPE_E | SLOPE_W,                     ///< east and west corner are raised
-		SLOPE_NS       = SLOPE_N | SLOPE_S,                     ///< north and south corner are raised
-		SLOPE_ELEVATED = SLOPE_N | SLOPE_E | SLOPE_S | SLOPE_W, ///< all corner are raised, similar to SLOPE_FLAT
-		SLOPE_NWS      = SLOPE_N | SLOPE_W | SLOPE_S,           ///< north, west and south corner are raised
-		SLOPE_WSE      = SLOPE_W | SLOPE_S | SLOPE_E,           ///< west, south and east corner are raised
-		SLOPE_SEN      = SLOPE_S | SLOPE_E | SLOPE_N,           ///< south, east and north corner are raised
-		SLOPE_ENW      = SLOPE_E | SLOPE_N | SLOPE_W,           ///< east, north and west corner are raised
-		SLOPE_STEEP_W  = SLOPE_STEEP | SLOPE_NWS,               ///< a steep slope falling to east (from west)
-		SLOPE_STEEP_S  = SLOPE_STEEP | SLOPE_WSE,               ///< a steep slope falling to north (from south)
-		SLOPE_STEEP_E  = SLOPE_STEEP | SLOPE_SEN,               ///< a steep slope falling to west (from east)
-		SLOPE_STEEP_N  = SLOPE_STEEP | SLOPE_ENW                ///< a steep slope falling to south (from north)
+		SLOPE_FLAT     = 0x00,                                  //!< A flat tile
+		SLOPE_W        = 0x01,                                  //!< The west corner of the tile is raised
+		SLOPE_S        = 0x02,                                  //!< The south corner of the tile is raised
+		SLOPE_E        = 0x04,                                  //!< The east corner of the tile is raised
+		SLOPE_N        = 0x08,                                  //!< The north corner of the tile is raised
+		SLOPE_STEEP    = 0x10,                                  //!< Indicates the slope is steep
+		SLOPE_NW       = SLOPE_N | SLOPE_W,                     //!< North and west corner are raised
+		SLOPE_SW       = SLOPE_S | SLOPE_W,                     //!< South and west corner are raised
+		SLOPE_SE       = SLOPE_S | SLOPE_E,                     //!< South and east corner are raised
+		SLOPE_NE       = SLOPE_N | SLOPE_E,                     //!< North and east corner are raised
+		SLOPE_EW       = SLOPE_E | SLOPE_W,                     //!< East and west corner are raised
+		SLOPE_NS       = SLOPE_N | SLOPE_S,                     //!< North and south corner are raised
+		SLOPE_ELEVATED = SLOPE_N | SLOPE_E | SLOPE_S | SLOPE_W, //!< All corner are raised, similar to SLOPE_FLAT
+		SLOPE_NWS      = SLOPE_N | SLOPE_W | SLOPE_S,           //!< North, west and south corner are raised
+		SLOPE_WSE      = SLOPE_W | SLOPE_S | SLOPE_E,           //!< West, south and east corner are raised
+		SLOPE_SEN      = SLOPE_S | SLOPE_E | SLOPE_N,           //!< South, east and north corner are raised
+		SLOPE_ENW      = SLOPE_E | SLOPE_N | SLOPE_W,           //!< East, north and west corner are raised
+		SLOPE_STEEP_W  = SLOPE_STEEP | SLOPE_NWS,               //!< A steep slope falling to east (from west)
+		SLOPE_STEEP_S  = SLOPE_STEEP | SLOPE_WSE,               //!< A steep slope falling to north (from south)
+		SLOPE_STEEP_E  = SLOPE_STEEP | SLOPE_SEN,               //!< A steep slope falling to west (from east)
+		SLOPE_STEEP_N  = SLOPE_STEEP | SLOPE_ENW                //!< A steep slope falling to south (from north)
 	};
 
 	/**
-	 * Check if this tile is buildable (e.g.: no things on it that needs removing).
+	 * Check if this tile is buildable, i.e. no things on it that needs
+	 *  demolishing.
+	 * @param tile The tile to check on.
+	 * @pre AIMap::IsValidTile(tile).
+	 * @return True if it is buildable, false if not.
 	 * @note Road and rail are considered buildable.
-	 * @param tile the tile to check on.
-	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if it is buildable, false if not.
 	 */
 	static bool IsBuildable(TileIndex tile);
 
 	/**
-	 	 * Check if this tile is buildable in a rectangle around a tile, with the entry in the list as top-left.
+	 * Check if this tile is buildable in a rectangle around a tile, with the
+	 *  entry in the list as top-left.
 	 * @note Road and rail are considered buildable.
-	 * @param tile the tile to check on.
-	 * @param width the width of the rectangle.
-	 * @param height the height of the rectangle.
+	 * @param tile The tile to check on.
+	 * @param width The width of the rectangle.
+	 * @param height The height of the rectangle.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if it is buildable, false if not.
+	 * @return True if it is buildable, false if not.
 	 */
 	static bool IsBuildableRectangle(TileIndex tile, uint width, uint height);
 
 	/**
 	 * Check if a tile is water.
-	 * @param tile the tile to check on.
+	 * @param tile The tile to check on.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if it is water, false if not.
+	 * @return True if it is water, false if not.
 	 */
 	static bool IsWater(TileIndex tile);
 
 	/**
 	 * Get the slope of a tile.
-	 * @param tile the tile to check on.
+	 * @param tile The tile to check on.
 	 * @pre AIMap::IsValidTile(tile).
 	 * @return 0 means flat, others indicate internal state of slope.
 	 */
@@ -84,9 +85,9 @@
 
 	/**
 	 * Get the height of the tile.
-	 * @param tile the tile to check on.
+	 * @param tile The tile to check on.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return the height of the tile, ranging from 0 to 15.
+	 * @return The height of the tile, ranging from 0 to 15.
 	 */
 	static int32 GetHeight(TileIndex tile);
 
@@ -94,13 +95,13 @@
 	 * Check how much cargo this tile accepts.
 	 *  It creates a radius around the tile, and adds up all acceptance of this
 	 *   cargo.
-	 * @param tile the tile to check on.
-	 * @param cargo_type the cargo to check the acceptance of.
-	 * @param width the width of the station.
-	 * @param height the height of the station.
-	 * @param radius the radius of the station.
+	 * @param tile The tile to check on.
+	 * @param cargo_type The cargo to check the acceptance of.
+	 * @param width The width of the station.
+	 * @param height The height of the station.
+	 * @param radius The radius of the station.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return value below 8 means no acceptance; the more the better.
+	 * @return Value below 8 means no acceptance; the more the better.
 	 */
 	static int32 GetCargoAcceptance(TileIndex tile, CargoID cargo_type, uint width, uint height, uint radius);
 
@@ -108,14 +109,14 @@
 	 * Checks how many tiles in the radius produces this cargo.
 	 *  It creates a radius around the tile, and adds up all tiles that produce
 	 *  this cargo.
-	 * @param tile the tile to check on.
-	 * @param cargo_type the cargo to check the production of.
-	 * @param width the width of the station.
-	 * @param height the height of the station.
-	 * @param radius the radius of the station.
+	 * @param tile The tile to check on.
+	 * @param cargo_type The cargo to check the production of.
+	 * @param width The width of the station.
+	 * @param height The height of the station.
+	 * @param radius The radius of the station.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return the tiles that produce this cargo within radius of the tile.
-	 * @note town(houses) are not included in the value.
+	 * @return The tiles that produce this cargo within radius of the tile.
+	 * @note Town(houses) are not included in the value.
 	 */
 	static int32 GetCargoProduction(TileIndex tile, CargoID cargo_type, uint width, uint height, uint radius);
 
@@ -138,8 +139,8 @@
 	/**
 	 * Raise the given corners of the tile. The corners can be combined,
 	 *  for example: SLOPE_N | SLOPE_W (= SLOPE_NW)
-	 * @param tile the tile to raise.
-	 * @param slope corners to raise (SLOPE_xxx).
+	 * @param tile The tile to raise.
+	 * @param slope Corners to raise (SLOPE_xxx).
 	 * @pre AIMap::IsValidTile(tile).
 	 * @return 0 means failed, 1 means success.
 	 */
@@ -148,8 +149,8 @@
 	/**
 	 * Lower the given corners of the tile. The corners can be combined,
 	 *  for example: SLOPE_N | SLOPE_W (= SLOPE_NW)
-	 * @param tile the tile to lower.
-	 * @param slope corners to lower (SLOPE_xxx).
+	 * @param tile The tile to lower.
+	 * @param slope Corners to lower (SLOPE_xxx).
 	 * @pre AIMap::IsValidTile(tile).
 	 * @return 0 means failed, 1 means success.
 	 */
@@ -157,9 +158,9 @@
 
 	/**
 	 * Destroy everything on the given tile.
-	 * @param tile the tile to demolish.
+	 * @param tile The tile to demolish.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @return true if and only if the tile was demolished.
+	 * @return True if and only if the tile was demolished.
 	 */
 	static bool DemolishTile(TileIndex tile);
 };
--- a/src/ai/api/ai_town.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_town.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -17,50 +17,48 @@
 
 	/**
 	 * Gets the maximum town index; there are no valid towns with a higher index.
-	 * @return the maximum town index.
-	 * @post return value is always non-negative.
+	 * @return The maximum town index.
+	 * @post Return value is always non-negative.
 	 */
 	static TownID GetMaxTownID();
 
 	/**
 	 * Gets the number of towns. This is different than GetMaxTownID()
 	 *   because of the way OpenTTD works internally.
-	 * @return the number of towns.
-	 * @post return value is always non-negative.
+	 * @return The number of towns.
+	 * @post Return value is always non-negative.
 	 */
 	static int32 GetTownCount();
 
 	/**
 	 * Checks whether the given town index is valid.
-	 * @param town_id the index to check.
-	 * @return true if and only if the town is valid.
+	 * @param town_id The index to check.
+	 * @return True if and only if the town is valid.
 	 */
 	static bool IsValidTown(TownID town_id);
 
 	/**
 	 * Get the name of the town.
-	 * @param town_id the town to get the name of.
-	 * @pre town_id has to be valid (use IsValidTown()).
-	 * @return the name of the town.
-	 * @note the returned name must be free'd (C++ only).
+	 * @param town_id The town to get the name of.
+	 * @pre IsValidTown(town_id).
+	 * @return The name of the town.
 	 */
 	static char *GetName(TownID town_id);
 
 	/**
 	 * Gets the number of inhabitants in the town.
-	 * @param town_id the town to get the name of.
-	 * @pre town_id has to be valid (use IsValidTown()).
-	 * @return the number of inhabitants.
-	 * @post return value is always non-negative.
+	 * @param town_id The town to get the name of.
+	 * @pre IsValidTown(town_id).
+	 * @return The number of inhabitants.
+	 * @post Return value is always non-negative.
 	 */
 	static int32 GetPopulation(TownID town_id);
 
 	/**
 	 * Gets the location of the town.
-	 * @param town_id the location of the town.
-	 * @pre town_id has to be valid (use IsValidTown()).
-	 * @return the location of the town.
-	 * @post return value is always valid with AIMap::IsValidTile().
+	 * @param town_id The location of the town.
+	 * @pre IsValidTown(town_id).
+	 * @return The location of the town.
 	 */
 	static TileIndex GetLocation(TownID town_id);
 
@@ -69,6 +67,7 @@
 	 *  of the town.
 	 * @param town_id The town to get the distance to.
 	 * @param tile The tile to get the distance to.
+	 * @pre IsValidTown(town_id).
 	 * @return The distance between town and tile.
 	 */
 	static int32 GetDistanceManhattanToTile(TownID town_id, TileIndex tile);
@@ -78,6 +77,7 @@
 	 *  of the town.
 	 * @param town_id The town to get the distance to.
 	 * @param tile The tile to get the distance to.
+	 * @pre IsValidTown(town_id).
 	 * @return The distance between town and tile.
 	 */
 	static int32 GetDistanceSquareToTile(TownID town_id, TileIndex tile);
--- a/src/ai/api/ai_tunnel.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_tunnel.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -17,17 +17,19 @@
 
 	/**
 	 * Check whether the tile is an entrance to a tunnel.
+	 * @param tile The tile to check.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @param tile The tile to check.
-	 * @note true if and only if the tile is the beginning or end of a tunnel.
+	 * @return True if and only if the tile is the beginning or end of a tunnel.
 	 */
 	static bool IsTunnelTile(TileIndex tile);
 
 	/**
-	 * Get the tile that exits on the other end of a (would be) tunnel starting at tile.
+	 * Get the tile that exits on the other end of a (would be) tunnel starting
+	 *  at tile.
+	 * @param tile The tile that is an entrance to a tunnel or the tile where you may want to build a tunnel.
 	 * @pre AIMap::IsValidTile(tile).
-	 * @param tile A tile that is an entrance to a tunnel or a tile where you may want to build a tunnel.
-	 * @return The TileIndex that is the other end of the (would be) tunnel, or 'tile' if no other end was found (crossing tunnels).
+	 * @return The TileIndex that is the other end of the (would be) tunnel, or
+	 *  'tile' if no other end was found (crossing tunnels).
 	 */
 	static TileIndex GetOtherTunnelEnd(TileIndex tile);
 
@@ -38,7 +40,7 @@
 	 * @param start Where to start the tunnel.
 	 * @param vehicle_type The vehicle-type of tunnel to build.
 	 * @pre AIMap::IsValidTile(start).
-	 * @pre vehicle_type is either AIVehicle::VEHICLE_RAIL or AIVEHICLE::VEHICLE_ROAD.
+	 * @pre 'vehicle_type' is either AIVehicle::VEHICLE_RAIL or AIVEHICLE::VEHICLE_ROAD.
 	 * @return Whether the tunnel has been/can be build or not.
 	 * @note The slope of a tile can be determined by AITile::GetSlope(TileIndex).
 	 */
@@ -46,7 +48,7 @@
 
 	/**
 	 * Remove the tunnel whose entrance is located at tile.
-	 * @param tile a tile that is an entrance to a tunnel.
+	 * @param tile The tile that is an entrance to a tunnel.
 	 * @pre AIMap::IsValidTile(tile) && IsTunnelTile(tile).
 	 * @return Whether the tunnel has been/can be removed or not.
 	 */
--- a/src/ai/api/ai_vehicle.hpp	Mon Mar 31 07:50:27 2008 +0000
+++ b/src/ai/api/ai_vehicle.hpp	Mon Mar 31 08:42:20 2008 +0000
@@ -21,152 +21,152 @@
 	 */
 	enum VehicleType {
 		/* Order IS important, as it now matches the internal state of the game for vehicle type */
-		VEHICLE_RAIL,
-		VEHICLE_ROAD,
-		VEHICLE_WATER,
-		VEHICLE_AIR,
-		VEHICLE_INVALID = 0xFF,
+		VEHICLE_RAIL,           //!< Rail type vehicle.
+		VEHICLE_ROAD,           //!< Road type vehicle (bus / truck).
+		VEHICLE_WATER,          //!< Water type vehicle.
+		VEHICLE_AIR,            //!< Air type vehicle.
+		VEHICLE_INVALID = 0xFF, //!< Invalid vehicle type.
 	};
 
 	/**
 	 * Checks whether the given vehicle is valid and owned by you.
-	 * @param vehicle_id the vehicle to check.
-	 * @return true if and only if the vehicle is valid.
+	 * @param vehicle_id The vehicle to check.
+	 * @return True if and only if the vehicle is valid.
 	 */
 	static bool IsValidVehicle(VehicleID vehicle_id);
 
 	/**
 	 * Set the name of a vehicle.
-	 * @param vehicle_id the vehicle to set the name for.
-	 * @param name the name for the vehicle.
+	 * @param vehicle_id The vehicle to set the name for.
+	 * @param name The name for the vehicle.
 	 * @pre IsValidVehicle(vehicle_id).
 	 * @pre Name has to be unique.
 	 * @pre You have to own the vehicle.
-	 * @return true if and only if the name was changed.
+	 * @return True if and only if the name was changed.
 	 */
 	static bool SetName(VehicleID vehicle_id, const char *name);
 
 	/**
 	 * Get the name of a vehicle.
-	 * @param vehicle_id the vehicle to get the name of.
+	 * @param vehicle_id The vehicle to get the name of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the name the vehicle has.
+	 * @return The name the vehicle has.
 	 */
 	static char *GetName(VehicleID vehicle_id);
 
 	/**
 	 * Get the current location of a vehicle.
-	 * @param vehicle_id the vehicle to get the location of.
+	 * @param vehicle_id The vehicle to get the location of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the tile the vehicle is currently on.
+	 * @return The tile the vehicle is currently on.
 	 */
 	static TileIndex GetLocation(VehicleID vehicle_id);
 
 	/**
 	 * Get the engine-type of a vehicle.
-	 * @param vehicle_id the vehicle to get the engine-type of.
+	 * @param vehicle_id The vehicle to get the engine-type of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the engine type the vehicle has.
+	 * @return The engine type the vehicle has.
 	 */
 	static EngineID GetEngineType(VehicleID vehicle_id);
 
 	/**
 	 * Get the unitnumber of a vehicle.
-	 * @param vehicle_id the vehicle to get the unitnumber of.
+	 * @param vehicle_id The vehicle to get the unitnumber of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the unitnumber the vehicle has.
+	 * @return The unitnumber the vehicle has.
 	 */
 	static int32 GetUnitNumber(VehicleID vehicle_id);
 
 	/**
 	 * Get the current age of a vehicle.
-	 * @note age is in days.
-	 * @param vehicle_id the vehicle to get the age of.
+	 * @param vehicle_id The vehicle to get the age of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the current age the vehicle has.
+	 * @return The current age the vehicle has.
+	 * @note The age is in days.
 	 */
 	static int32 GetAge(VehicleID vehicle_id);
 
 	/**
-	 * Get the max age of a vehicle.
-	 * @note age is in days.
-	 * @param vehicle_id the vehicle to get the age of.
+	 * Get the maximum age of a vehicle.
+	 * @param vehicle_id The vehicle to get the age of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the max age the vehicle has.
+	 * @return The maximum age the vehicle has.
+	 * @note The age is in days.
 	 */
 	static int32 GetMaxAge(VehicleID vehicle_id);
 
 	/**
-	 * Get the age a vehicle has left (max - current).
-	 * @note age is in days.
-	 * @param vehicle_id the vehicle to get the age of.
+	 * Get the age a vehicle has left (maximum - current).
+	 * @param vehicle_id The vehicle to get the age of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the age the vehicle has left.
+	 * @return The age the vehicle has left.
+	 * @note The age is in days.
 	 */
 	static int32 GetAgeLeft(VehicleID vehicle_id);
 
 	/**
 	 * Get the running cost of this vehicle.
-	 * @note cost is per year; divide by 364 to get per day.
-	 * @note this is not equal to AIEngine::GetRunningCost for Trains, because
-	 *   wagons and second engines can add up in the calculation too.
-	 * @param vehicle_id the vehicle to get the age of.
+	 * @param vehicle_id The vehicle to get the age of.
 	 * @pre IsValidVehicle(vehicle_id).
 	 * @return The running cost of the vehicle per year.
+	 * @note Cost is per year; divide by 364 to get per day.
+	 * @note This is not equal to AIEngine::GetRunningCost for Trains, because
+	 *   wagons and second engines can add up in the calculation too.
 	 */
 	static Money GetRunningCost(VehicleID vehicle_id);
 
 	/**
 	 * Get the current profit of a vehicle.
-	 * @param vehicle_id the vehicle to get the profit of.
+	 * @param vehicle_id The vehicle to get the profit of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the current profit the vehicle has.
+	 * @return The current profit the vehicle has.
 	 */
 	static int32 GetProfitThisYear(VehicleID vehicle_id);
 
 	/**
 	 * Get the profit of last year of a vehicle.
-	 * @param vehicle_id the vehicle to get the profit of.
+	 * @param vehicle_id The vehicle to get the profit of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the profit the vehicle had last year.
+	 * @return The profit the vehicle had last year.
 	 */
 	static int32 GetProfitLastYear(VehicleID vehicle_id);
 
 	/**
 	 * Get the type of vehicle.
-	 * @param vehicle_id the vehicle to get the type of.
+	 * @param vehicle_id The vehicle to get the type of.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the vehicle type.
+	 * @return The vehicle type.
 	 */
 	static AIVehicle::VehicleType GetVehicleType(VehicleID vehicle_id);
 
 	/**
 	 * Check if a vehicle is in a depot.
-	 * @param vehicle_id the vehicle to check.
-	 * @pre isValidVehicle(vehicle_id).
-	 * @return true if and only if the vehicle is in a depot.
+	 * @param vehicle_id The vehicle to check.
+	 * @pre IsValidVehicle(vehicle_id).
+	 * @return True if and only if the vehicle is in a depot.
 	 */
 	static bool IsInDepot(VehicleID vehicle_id);
 
 	/**
 	 * Check if a vehicle is in a depot and stopped.
-	 * @param vehicle_id the vehicle to check.
-	 * @pre isValidVehicle(vehicle_id).
-	 * @return true if and only if the vehicle is in a depot and stopped.
+	 * @param vehicle_id The vehicle to check.
+	 * @pre IsValidVehicle(vehicle_id).
+	 * @return True if and only if the vehicle is in a depot and stopped.
 	 */
 	static bool IsStoppedInDepot(VehicleID vehicle_id);
 
 	/**
 	 * Builds a vehicle with the given engine at the given depot.
-	 * @param depot     the depot where the vehicle will be build.
-	 * @param engine_id the engine to use for this vehicle.
-	 * @pre the tile at depot has a depot that can build the engine and
+	 * @param depot The depot where the vehicle will be build.
+	 * @param engine_id The engine to use for this vehicle.
+	 * @pre The tile at depot has a depot that can build the engine and
 	 *   is owned by you.
 	 * @pre IsValidEngine(engine_id).
-	 * @return the VehicleID of the new vehicle, or an invalid VehicleID when
+	 * @return The VehicleID of the new vehicle, or an invalid VehicleID when
 	 *   it failed. Check the return value using IsValidVehicle. In test-mode
 	 *   0 is returned if it was successful; any other value indicates failure.
-	 * @note in test-mode it means you can't assign orders yet to this vehicle,
+	 * @note In Test Mode it means you can't assign orders yet to this vehicle,
 	 *   as the vehicle isn't really built yet. Build it for real first before
 	 *   assigning orders.
 	 */
@@ -174,12 +174,12 @@
 
 	/**
 	 * Clones a vehicle at the given depot, copying or cloning it's orders.
-	 * @param depot        the depot where the vehicle will be build.
-	 * @param vehicle_id   the vehicle to use as example for the new vehicle.
-	 * @param share_orders should the orders be copied or shared?
-	 * @pre the tile at depot has a depot.
+	 * @param depot The depot where the vehicle will be build.
+	 * @param vehicle_id The vehicle to use as example for the new vehicle.
+	 * @param share_orders Should the orders be copied or shared?
+	 * @pre The tile 'depot' has a depot on it, allowing 'vehicle_id'-type vehicles.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return the VehicleID of the new vehicle, or an invalid VehicleID when
+	 * @return The VehicleID of the new vehicle, or an invalid VehicleID when
 	 *   it failed. Check the return value using IsValidVehicle. In test-mode
 	 *   0 is returned if it was successful; any other value indicates failure.
 	 */
@@ -187,48 +187,48 @@
 
 	/**
 	 * Refits a vehicle to the given cargo type
-	 * @param vehicle_id the vehicle to refit
-	 * @param cargo      the cargo to refit to
+	 * @param vehicle_id The vehicle to refit
+	 * @param cargo The cargo to refit to.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @pre AICargo::IsValidCargo(cargo)
-	 * @pre you must own the vehicle
-	 * @pre the vehicle must be stopped in the depot
-	 * @return true if and only if the refit succeeded.
+	 * @pre AICargo::IsValidCargo(cargo).
+	 * @pre You must own the vehicle.
+	 * @pre The vehicle must be stopped in the depot.
+	 * @return True if and only if the refit succeeded.
 	 */
 	static bool RefitVehicle(VehicleID vehicle_id, CargoID cargo);
 
 	/**
 	 * Sells the given vehicle.
-	 * @param vehicle_id the vehicle to sell.
+	 * @param vehicle_id The vehicle to sell.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @pre you must own the vehicle
-	 * @pre the vehicle must be stopped in the depot
-	 * @return true if and only if the vehicle has been sold.
+	 * @pre You must own the vehicle.
+	 * @pre The vehicle must be stopped in the depot.
+	 * @return True if and only if the vehicle has been sold.
 	 */
 	static bool SellVehicle(VehicleID vehicle_id);
 
 	/**
 	 * Sends the given vehicle to a depot.
-	 * @param vehicle_id the vehicle to send to a depot.
+	 * @param vehicle_id The vehicle to send to a depot.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return true if and only if the vehicle has been sent to a depot.
+	 * @return True if and only if the vehicle has been sent to a depot.
 	 */
 	static bool SendVehicleToDepot(VehicleID vehicle_id);
 
 	/**
 	 * Starts or stops the given vehicle depending on the current state.
-	 * @param vehicle_id the vehicle to start/stop.
+	 * @param vehicle_id The vehicle to start/stop.
 	 * @pre IsValidVehicle(vehicle_id).
-	 * @return true if and only if the vehicle has been started or stopped.
+	 * @return True if and only if the vehicle has been started or stopped.
 	 */
 	static bool StartStopVehicle(VehicleID vehicle_id);
 
 	/**
 	 * Skips the current order of the given vehicle.
-	 * @param vehicle_id the vehicle to skip the order for.
-	 * @param order_id the selected order to which we want to skip.
+	 * @param vehicle_id The vehicle to skip the order for.
+	 * @param order_id The selected order to which we want to skip.
 	 * @pre IsValidVehicleOrder(vehicle_id, order_id).
-	 * @return true if and only if the order has been skipped.
+	 * @return True if and only if the order has been skipped.
 	 */
 	static bool SkipToVehicleOrder(VehicleID vehicle_id, uint32 order_id);
 };