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

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r23483:3733e6b8ff17 2.7 KiB text/x-c Show Annotation Show as Raw Download as Raw

Patric Stout

Remove: ENABLE_NETWORK switch

This switch has been a pain for years. Often disabling broke
compilation, as no developer compiles OpenTTD without, neither do
any of our official binaries.

Additionaly, it has grown so hugely in our codebase, that it
clearly shows that the current solution was a poor one. 350+
instances of "#ifdef ENABLE_NETWORK" were in the code, of which
only ~30 in the networking code itself. The rest were all around
the code to do the right thing, from GUI to NewGRF.

A more proper solution would be to stub all the functions, and
make sure the rest of the code can simply assume network is
available. This was also partially done, and most variables were
correct if networking was disabled. Despite that, often the #ifdefs
were still used.

With the recent removal of DOS, there is also no platform anymore
which we support where networking isn't working out-of-the-box.

All in all, it is time to remove the ENABLE_NETWORK switch. No
replacement is planned, but if you feel we really need this option,
we welcome any Pull Request which implements this in a way that
doesn't crawl through the code like this diff shows we used to.

/* $Id$ */

/*
 * 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 newgrf_railtype.h NewGRF handling of rail types. */

#ifndef NEWGRF_RAILTYPE_H
#define NEWGRF_RAILTYPE_H

#include "rail.h"
#include "newgrf_commons.h"
#include "newgrf_spritegroup.h"

/** Resolver for the railtype scope. */
struct RailTypeScopeResolver : public ScopeResolver {
	TileIndex tile;      ///< Tracktile. For track on a bridge this is the southern bridgehead.
	TileContext context; ///< Are we resolving sprites for the upper halftile, or on a bridge?

	/**
	 * Constructor of the railtype scope resolvers.
	 * @param ro Surrounding resolver.
	 * @param tile %Tile containing the track. For track on a bridge this is the southern bridgehead.
	 * @param context Are we resolving sprites for the upper halftile, or on a bridge?
	 */
	RailTypeScopeResolver(ResolverObject &ro, TileIndex tile, TileContext context)
		: ScopeResolver(ro), tile(tile), context(context)
	{
	}

	/* virtual */ uint32 GetRandomBits() const;
	/* virtual */ uint32 GetVariable(byte variable, uint32 parameter, bool *available) const;
};

/** Resolver object for rail types. */
struct RailTypeResolverObject : public ResolverObject {
	RailTypeScopeResolver railtype_scope; ///< Resolver for the railtype scope.

	RailTypeResolverObject(const RailtypeInfo *rti, TileIndex tile, TileContext context, RailTypeSpriteGroup rtsg, uint32 param1 = 0, uint32 param2 = 0);

	/* virtual */ ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0)
	{
		switch (scope) {
			case VSG_SCOPE_SELF: return &this->railtype_scope;
			default:             return ResolverObject::GetScope(scope, relative);
		}
	}

	/* virtual */ const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const;
};

SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, TileContext context = TCX_NORMAL, uint *num_results = NULL);
SpriteID GetCustomSignalSprite(const RailtypeInfo *rti, TileIndex tile, SignalType type, SignalVariant var, SignalState state, bool gui = false);

uint8 GetReverseRailTypeTranslation(RailType railtype, const GRFFile *grffile);

#endif /* NEWGRF_RAILTYPE_H */