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

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

r5258:3db190a590f0 613 B text/x-c Show Annotation Show as Raw Download as Raw

Darkvater

(svn r7388) -Fix (r7384 / r7368 / r3757): When adding a new news item for the first time (_latest_news
is INVALID_NEWS), make it the value of _oldest_news, not zero as DeleteVehicleNews can
change _oldest_news. Also remove the (i == INVALID_NEWS) return 0; guard from increaseIndex
as it's only used in 2 places, nowhere else.

/* $Id$ */

#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"


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

	assert(DiagDirToAxis(dir) == GetBridgeAxis(tile));

	do {
		tile += delta;
	} while (!IsBridgeRamp(tile));

	return tile;
}


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


TileIndex GetOtherBridgeEnd(TileIndex tile)
{
	TileIndexDiff delta = TileOffsByDiagDir(GetBridgeRampDirection(tile));

	do {
		tile += delta;
	} while (!IsBridgeRamp(tile));

	return tile;
}