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Location: cpp/openttd-patchpack/source/src/newgrf_cargo.cpp - annotation
r24654:66b379079421
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Change: darken the background of all graph to increase contrast (#8557)
Now lines like Mauve, Dark Green and Purple are much more visible
without hurting the other colours.
Now lines like Mauve, Dark Green and Purple are much more visible
without hurting the other colours.
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* 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_cargo.cpp Implementation of NewGRF cargoes. */
#include "stdafx.h"
#include "debug.h"
#include "newgrf_spritegroup.h"
#include "safeguards.h"
/** Resolver of cargo. */
struct CargoResolverObject : public ResolverObject {
const CargoSpec *cargospec;
CargoResolverObject(const CargoSpec *cs, CallbackID callback = CBID_NO_CALLBACK, uint32 callback_param1 = 0, uint32 callback_param2 = 0);
const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const override;
GrfSpecFeature GetFeature() const override;
uint32 GetDebugID() const override;
};
/* virtual */ const SpriteGroup *CargoResolverObject::ResolveReal(const RealSpriteGroup *group) const
{
/* Cargo action 2s should always have only 1 "loaded" state, but some
* times things don't follow the spec... */
if (group->num_loaded > 0) return group->loaded[0];
if (group->num_loading > 0) return group->loading[0];
return nullptr;
}
GrfSpecFeature CargoResolverObject::GetFeature() const
{
return GSF_CARGOES;
}
uint32 CargoResolverObject::GetDebugID() const
{
return this->cargospec->label;
}
/**
* Constructor of the cargo resolver.
* @param cs Cargo being resolved.
* @param callback Callback ID.
* @param callback_param1 First parameter (var 10) of the callback.
* @param callback_param2 Second parameter (var 18) of the callback.
*/
CargoResolverObject::CargoResolverObject(const CargoSpec *cs, CallbackID callback, uint32 callback_param1, uint32 callback_param2)
: ResolverObject(cs->grffile, callback, callback_param1, callback_param2), cargospec(cs)
{
this->root_spritegroup = cs->group;
}
/**
* Get the custom sprite for the given cargo type.
* @param cs Cargo being queried.
* @return Custom sprite to draw, or \c 0 if not available.
*/
SpriteID GetCustomCargoSprite(const CargoSpec *cs)
{
CargoResolverObject object(cs);
const SpriteGroup *group = object.Resolve();
if (group == nullptr) return 0;
return group->GetResult();
}
uint16 GetCargoCallback(CallbackID callback, uint32 param1, uint32 param2, const CargoSpec *cs)
{
CargoResolverObject object(cs, callback, param1, param2);
return object.ResolveCallback();
}
/**
* Translate a GRF-local cargo slot/bitnum into a CargoID.
* @param cargo GRF-local cargo slot/bitnum.
* @param grffile Originating GRF file.
* @param usebit Defines the meaning of \a cargo for GRF version < 7.
* If true, then \a cargo is a bitnum. If false, then \a cargo is a cargoslot.
* For GRF version >= 7 \a cargo is always a translated cargo bit.
* @return CargoID or CT_INVALID if the cargo is not available.
*/
CargoID GetCargoTranslation(uint8 cargo, const GRFFile *grffile, bool usebit)
{
/* Pre-version 7 uses the 'climate dependent' ID in callbacks and properties, i.e. cargo is the cargo ID */
if (grffile->grf_version < 7 && !usebit) {
if (cargo >= CargoSpec::GetArraySize() || !CargoSpec::Get(cargo)->IsValid()) return CT_INVALID;
return cargo;
}
/* Other cases use (possibly translated) cargobits */
if (grffile->cargo_list.size() > 0) {
/* ...and the cargo is in bounds, then get the cargo ID for
* the label */
if (cargo < grffile->cargo_list.size()) return GetCargoIDByLabel(grffile->cargo_list[cargo]);
} else {
/* Else the cargo value is a 'climate independent' 'bitnum' */
return GetCargoIDByBitnum(cargo);
}
return CT_INVALID;
}
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