(svn r9849) [0.5] -Backport from trunk (r9693, r9694, r9697, r9718, r9719, r9725 and 9726):
- Fix: Crash when destroying bridge with train partially on it [FS#738] (r9726)
- Fix: Planes made a 270 degree turn instead of a 90 degree turn on the southern runway of the intercontinental airport [FS#743] (r9725)
- Fix: In-game private messages did not work for clients with high ClientIDs (r9719)
- Fix: Do not allow building of rail vehicles whose railtype is not available (r9718)
- Fix: [YAPF] The guessed path was ignored for ships [FS#736] (r9694)
/* $Id$ */
#include "stdafx.h"
#include "openttd.h"
#include "tile.h"
#include "tunnel_map.h"
TileIndex GetOtherTunnelEnd(TileIndex tile)
{
DiagDirection dir = GetTunnelDirection(tile);
TileIndexDiff delta = TileOffsByDiagDir(dir);
uint z = GetTileZ(tile);
dir = ReverseDiagDir(dir);
do {
tile += delta;
} while (
!IsTunnelTile(tile) ||
GetTunnelDirection(tile) != dir ||
GetTileZ(tile) != z
);
return tile;
}
static bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir)
{
TileIndexDiff delta = TileOffsByDiagDir(dir);
uint height;
do {
tile -= delta;
height = GetTileZ(tile);
} while (z < height);
return
z == height &&
IsTunnelTile(tile) &&
GetTunnelDirection(tile) == dir;
}
bool IsTunnelInWay(TileIndex tile, uint z)
{
return
IsTunnelInWayDir(tile, z, DIAGDIR_NE) ||
IsTunnelInWayDir(tile, z, DIAGDIR_SE) ||
IsTunnelInWayDir(tile, z, DIAGDIR_SW) ||
IsTunnelInWayDir(tile, z, DIAGDIR_NW);
}