cpp/openttd-patchpack/source Files · src/bridge_map.cpp

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Location: cpp/openttd-patchpack/source/src/bridge_map.cpp

r8655:74c23e2271a3 1.1 KiB text/x-c Show Annotation Show as Raw Download as Raw

peter1138

(svn r12316) -Codechange: Support loading full range of 0xD0xx NewGRF strings which
includes 0xD000 to 0xD3FF (yes, 0xD0xx makes a lot of sense, really...)
and handle 0xD400 to 0xD7FF strings which map to 0xD000 to 0xD3FF
(obviously).

/* $Id$ */

/** @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);
}