openttd-mini: src/tunnel_map.cpp@1c54bc6f4bdf (annotated)

3154 6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	1	/* $Id$ */
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	2
6422 6679df1c05ba (svn r9558) -Documentation: doxygen and comment changes: 'T' now. Almost done belugas parents: 5584 diff changeset	3	/** @file tunnel_map.cpp */
6679df1c05ba (svn r9558) -Documentation: doxygen and comment changes: 'T' now. Almost done belugas parents: 5584 diff changeset	4
3154 6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	5	#include "stdafx.h"
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	6	#include "openttd.h"
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	7	#include "tile.h"
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	8	#include "tunnel_map.h"
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	9
6489 511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	10	/**
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	11	* Gets the other end of the tunnel. Where a vehicle would reappear when it
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	12	* enters at the given tile.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	13	* @param tile the tile to search from.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	14	* @return the tile of the other end of the tunnel.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	15	*/
3154 6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	16	TileIndex GetOtherTunnelEnd(TileIndex tile)
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	17	{
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	18	DiagDirection dir = GetTunnelDirection(tile);
4559 aa0c13e39840 (svn r6406) -Codechange: Rename TileOffsByDir to TileOffsByDiagDir because it accepts Darkvater parents: 4291 diff changeset	19	TileIndexDiff delta = TileOffsByDiagDir(dir);
3154 6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	20	uint z = GetTileZ(tile);
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	21
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	22	dir = ReverseDiagDir(dir);
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	23	do {
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	24	tile += delta;
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	25	} while (
3184 118a520164e4 (svn r3830) Move IsTunnelTile() from tile.h to tunnel_map.h and add IsTunnel(), which just checks for a tunnel, but not the tile type as IsTunnelTile() does tron parents: 3156 diff changeset	26	!IsTunnelTile(tile) \|\|
3154 6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	27	GetTunnelDirection(tile) != dir \|\|
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	28	GetTileZ(tile) != z
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	29	);
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	30
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	31	return tile;
6ab0cb6b7ab3 (svn r3777) Add some functions to handle tunnels tron parents: diff changeset	32	}
3156 f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	33
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	34
6489 511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	35	/**
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	36	* Is there a tunnel in the way in the given direction?
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	37	* @param tile the tile to search from.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	38	* @param z the 'z' to search on.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	39	* @param dir the direction to start searching to.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	40	* @return true if and only if there is a tunnel.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	41	*/
7002 1bf6a62b0fcb (svn r10258) -Codechange: as we are now using int64 all over the place, it's better to use int64 variables in the string generating too instead of packing them into two int32s. rubidium parents: 6489 diff changeset	42	bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir)
3156 f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	43	{
4559 aa0c13e39840 (svn r6406) -Codechange: Rename TileOffsByDir to TileOffsByDiagDir because it accepts Darkvater parents: 4291 diff changeset	44	TileIndexDiff delta = TileOffsByDiagDir(dir);
3156 f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	45	uint height;
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	46
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	47	do {
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	48	tile -= delta;
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	49	height = GetTileZ(tile);
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	50	} while (z < height);
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	51
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	52	return
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	53	z == height &&
3184 118a520164e4 (svn r3830) Move IsTunnelTile() from tile.h to tunnel_map.h and add IsTunnel(), which just checks for a tunnel, but not the tile type as IsTunnelTile() does tron parents: 3156 diff changeset	54	IsTunnelTile(tile) &&
3156 f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	55	GetTunnelDirection(tile) == dir;
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	56	}
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	57
6489 511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	58	/**
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	59	* Is there a tunnel in the way in any direction?
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	60	* @param tile the tile to search from.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	61	* @param z the 'z' to search on.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	62	* @return true if and only if there is a tunnel.
511474c82dd3 (svn r9670) -Documentation: add documentation to some the _map files. rubidium parents: 6422 diff changeset	63	*/
3156 f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	64	bool IsTunnelInWay(TileIndex tile, uint z)
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	65	{
f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	66	return
7323 20a18eb8efaf (svn r10686) -Fix [FS#1058]: determining whether there is a tunnel going under the lowered area is only needed in two directions instead of all four, so take the directions (one for each axis) to the nearest border (along the given axis). Furthermore GetTileZ did much more than absolutely necessary. rubidium parents: 7002 diff changeset	67	IsTunnelInWayDir(tile, z, (TileX(tile) > (MapMaxX() / 2)) ? DIAGDIR_NE : DIAGDIR_SW) \|\|
20a18eb8efaf (svn r10686) -Fix [FS#1058]: determining whether there is a tunnel going under the lowered area is only needed in two directions instead of all four, so take the directions (one for each axis) to the nearest border (along the given axis). Furthermore GetTileZ did much more than absolutely necessary. rubidium parents: 7002 diff changeset	68	IsTunnelInWayDir(tile, z, (TileY(tile) > (MapMaxY() / 2)) ? DIAGDIR_NW : DIAGDIR_SE);
3156 f4caf4197189 (svn r3779) Move CheckTunnelInWay() to a more appropriate place, invert its result and give it a less ambiguous name (IsTunnelInWay) tron parents: 3154 diff changeset	69	}

author	skidd13
	Sun, 02 Dec 2007 21:43:16 +0000
changeset 8004	1c54bc6f4bdf
parent 7323	20a18eb8efaf
child 8083	ad22eade501f
permissions	-rw-r--r--