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

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

r6071:3dcae6ddc2c7 954 B text/x-c Show Annotation Show as Raw Download as Raw

tron

(svn r8802) -Fix

-Fix: When inserting an order for a ship while checking the distance between the new order and the order it is inserted after adhere the order types to determine the correct type of destination (i.e. station or depot)
Also do a better job in determining the preceding order
NOTE: 0.5 candidate

/* $Id$ */

#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);
}