Files @ r10764:5b98d3dd6146
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Location: cpp/openttd-patchpack/source/src/bridge_map.cpp

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(svn r15097) -Update: WebTranslator2 update to 2009-01-15 18:47:56
brazilian_portuguese - 8 fixed by tucalipe (8)
danish - 4 fixed, 1 changed by beruic (5)
dutch - 6 fixed by habell (6)
english_US - 76 fixed by WhiteRabbit (76)
french - 7 fixed, 1 changed by glx (8)
greek - 9 fixed, 2 changed by doukas (11)
indonesian - 13 changed by fanioz (13)
norwegian_nynorsk - 24 fixed by runarlu (24)
polish - 5 fixed by xaxa (5)
/* $Id$ */

/** @file bridge_map.cpp Map accessor functions for bridges. */

#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "bridge.h"
#include "variables.h"
#include "landscape.h"
#include "tunnelbridge_map.h"


TileIndex GetBridgeEnd(TileIndex tile, DiagDirection dir)
{
	TileIndexDiff delta = TileOffsByDiagDir(dir);

	dir = ReverseDiagDir(dir);
	do {
		tile += delta;
	} while (!IsBridgeTile(tile) || GetTunnelBridgeDirection(tile) != dir);

	return tile;
}


TileIndex GetNorthernBridgeEnd(TileIndex t)
{
	return GetBridgeEnd(t, ReverseDiagDir(AxisToDiagDir(GetBridgeAxis(t))));
}


TileIndex GetSouthernBridgeEnd(TileIndex t)
{
	return GetBridgeEnd(t, AxisToDiagDir(GetBridgeAxis(t)));
}


TileIndex GetOtherBridgeEnd(TileIndex tile)
{
	assert(IsBridgeTile(tile));
	return GetBridgeEnd(tile, GetTunnelBridgeDirection(tile));
}

uint GetBridgeHeight(TileIndex t)
{
	uint h;
	Slope tileh = GetTileSlope(t, &h);
	Foundation f = GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(t)));

	/* one height level extra for the ramp */
	return h + TILE_HEIGHT + ApplyFoundationToSlope(f, &tileh);
}