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Location: cpp/openttd-patchpack/source/src/tunnel_map.cpp - annotation
r6228:1c3b29b83249
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(svn r9030) [Config] -Add: added --enable-unicode, which enables unicode (mostly for windows). Enabled by default on WIN32 (makes win9x fail, so use --disable-unicode if you produce binaries for win9x)
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#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);
}
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