cpp/openttd-patchpack/source Files · src/bridge.h

Files @ r24422:3fa67b2abcd2

Branch filter:

Location: cpp/openttd-patchpack/source/src/bridge.h

r24422:3fa67b2abcd2 2.8 KiB text/x-c Show Annotation Show as Raw Download as Raw

Patric Stout

Fix: change the working-dir searchpath when using '-c'

Basically, with '-c' you now create a sandbox. It will still use
your personal-dir and global-dir to find files you installed there,
but all new files are stored with a base folder identical to the
folder the configuration is in.

This is a bit of an old bug, that we many have tried to solve in
various of different ways. The code has grown sufficiently complex
that it is hard to see what consequences of actions are. This is
in my opinion the most harmless solution, while increasing the
usefulness of the '-c' flag.

In essence, the problem was that empty folders were always created
in the directory where the configuration was, but as that directory
wasn't added to any searchpath, files weren't stored there, unless
by accident it was a folder already on the searchpath. For example,
if you do './openttd -c local.cfg', it did work as expected. But
in the more generic variant, it did not.

With this patch, you can run './openttd -c /new/folder/local.cfg',
and it will create and prepare that folder to receive new files.

'content_download' is also stored in the directory the
configuration is in; this was already the case. Important to
note that there is only one search-path for 'content_download'.
In other words, when using '-c', it will not look in '~/.openttd'
inside the 'content_download' folder.

/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file bridge.h Header file for bridges */

#ifndef BRIDGE_H
#define BRIDGE_H

#include "gfx_type.h"
#include "tile_cmd.h"

/**
 * This enum is related to the definition of bridge pieces,
 * which is used to determine the proper sprite table to use
 * while drawing a given bridge part.
 */
enum BridgePieces {
	BRIDGE_PIECE_NORTH = 0,
	BRIDGE_PIECE_SOUTH,
	BRIDGE_PIECE_INNER_NORTH,
	BRIDGE_PIECE_INNER_SOUTH,
	BRIDGE_PIECE_MIDDLE_ODD,
	BRIDGE_PIECE_MIDDLE_EVEN,
	BRIDGE_PIECE_HEAD,
	BRIDGE_PIECE_INVALID,
};

DECLARE_POSTFIX_INCREMENT(BridgePieces)

static const uint MAX_BRIDGES = 13; ///< Maximal number of available bridge specs.

typedef uint BridgeType; ///< Bridge spec number.

/**
 * Struct containing information about a single bridge type
 */
struct BridgeSpec {
	Year avail_year;             ///< the year where it becomes available
	byte min_length;             ///< the minimum length (not counting start and end tile)
	uint16 max_length;           ///< the maximum length (not counting start and end tile)
	uint16 price;                ///< the price multiplier
	uint16 speed;                ///< maximum travel speed (1 unit = 1/1.6 mph = 1 km-ish/h)
	SpriteID sprite;             ///< the sprite which is used in the GUI
	PaletteID pal;               ///< the palette which is used in the GUI
	StringID material;           ///< the string that contains the bridge description
	StringID transport_name[2];  ///< description of the bridge, when built for road or rail
	PalSpriteID **sprite_table;  ///< table of sprites for drawing the bridge
	byte flags;                  ///< bit 0 set: disable drawing of far pillars.
};

extern BridgeSpec _bridge[MAX_BRIDGES];

Foundation GetBridgeFoundation(Slope tileh, Axis axis);
bool HasBridgeFlatRamp(Slope tileh, Axis axis);

/**
 * Get the specification of a bridge type.
 * @param i The type of bridge to get the specification for.
 * @return The specification.
 */
static inline const BridgeSpec *GetBridgeSpec(BridgeType i)
{
	assert(i < lengthof(_bridge));
	return &_bridge[i];
}

void DrawBridgeMiddle(const TileInfo *ti);

CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags = DC_NONE);
int CalcBridgeLenCostFactor(int x);

void ResetBridges();

#endif /* BRIDGE_H */