OpenTTD Source  20241108-master-g80f628063a
newgrf_object.h
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1 /*
2  * This file is part of OpenTTD.
3  * 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.
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5  * 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/>.
6  */
7 
10 #ifndef NEWGRF_OBJECT_H
11 #define NEWGRF_OBJECT_H
12 
13 #include "newgrf_callbacks.h"
14 #include "newgrf_spritegroup.h"
15 #include "newgrf_town.h"
16 #include "economy_func.h"
18 #include "object_type.h"
19 #include "newgrf_animation_type.h"
20 #include "newgrf_class.h"
21 #include "newgrf_commons.h"
22 
24 enum ObjectFlags : uint16_t {
40 };
42 
43 static const uint8_t OBJECT_SIZE_1X1 = 0x11;
44 
45 void ResetObjects();
46 
48 enum ObjectClassID : uint16_t {
50  OBJECT_CLASS_MAX = UINT16_MAX,
51  INVALID_OBJECT_CLASS = UINT16_MAX,
52 };
55 
56 
61  /* 2 because of the "normal" and "buy" sprite stacks. */
65 
66  uint8_t climate;
67  uint8_t size;
73  uint16_t callback_mask;
74  uint8_t height;
75  uint8_t views;
76  uint8_t generate_amount;
77 
82  bool IsEnabled() const { return this->views > 0; }
83 
88  Money GetBuildCost() const { return GetPrice(PR_BUILD_OBJECT, this->build_cost_multiplier, this->grf_prop.grffile, 0); }
89 
94  Money GetClearCost() const { return GetPrice(PR_CLEAR_OBJECT, this->clear_cost_multiplier, this->grf_prop.grffile, 0); }
95 
96  bool IsEverAvailable() const;
97  bool WasEverAvailable() const;
98  bool IsAvailable() const;
99  uint Index() const;
100 
101  static const std::vector<ObjectSpec> &Specs();
102  static size_t Count();
103  static const ObjectSpec *Get(ObjectType index);
104  static const ObjectSpec *GetByTile(TileIndex tile);
105 
106  static void BindToClasses();
107 };
108 
111  struct Object *obj;
112  const ObjectSpec *spec;
114  uint8_t view;
115 
125  {
126  }
127 
128  uint32_t GetRandomBits() const override;
129  uint32_t GetVariable(uint8_t variable, [[maybe_unused]] uint32_t parameter, bool &available) const override;
130 };
131 
135  std::optional<TownScopeResolver> town_scope = std::nullopt;
136 
137  ObjectResolverObject(const ObjectSpec *spec, Object *o, TileIndex tile, uint8_t view = 0,
138  CallbackID callback = CBID_NO_CALLBACK, uint32_t param1 = 0, uint32_t param2 = 0);
139 
140  ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, uint8_t relative = 0) override
141  {
142  switch (scope) {
143  case VSG_SCOPE_SELF:
144  return &this->object_scope;
145 
146  case VSG_SCOPE_PARENT: {
147  TownScopeResolver *tsr = this->GetTown();
148  if (tsr != nullptr) return tsr;
149  [[fallthrough]];
150  }
151 
152  default:
153  return ResolverObject::GetScope(scope, relative);
154  }
155  }
156 
157  GrfSpecFeature GetFeature() const override;
158  uint32_t GetDebugID() const override;
159 
160 private:
162 };
163 
166 
167 static const size_t OBJECT_SPRITE_GROUP_DEFAULT = 0;
168 static const size_t OBJECT_SPRITE_GROUP_PURCHASE = 1;
169 
170 uint16_t GetObjectCallback(CallbackID callback, uint32_t param1, uint32_t param2, const ObjectSpec *spec, Object *o, TileIndex tile, uint8_t view = 0);
171 
172 void DrawNewObjectTile(TileInfo *ti, const ObjectSpec *spec);
173 void DrawNewObjectTileInGUI(int x, int y, const ObjectSpec *spec, uint8_t view);
176 void TriggerObjectAnimation(Object *o, ObjectAnimationTrigger trigger, const ObjectSpec *spec);
177 
178 #endif /* NEWGRF_OBJECT_H */
Struct containing information relating to NewGRF classes for stations and airports.
Definition: newgrf_class.h:26
DECLARE_ENUM_AS_BIT_SET(GenderEthnicity) enum CompanyManagerFaceVariable
Bitgroups of the CompanyManagerFace variable.
Money GetPrice(Price index, uint cost_factor, const GRFFile *grf_file, int shift)
Determine a certain price.
Definition: economy.cpp:969
Functions related to the economy.
#define DECLARE_POSTFIX_INCREMENT(enum_type)
Some enums need to have allowed incrementing (i.e.
Definition: enum_type.hpp:18
GrfSpecFeature
Definition: newgrf.h:67
Definitions related to NewGRF animation.
ObjectAnimationTrigger
Animation triggers for objects.
Callbacks that NewGRFs could implement.
CallbackID
List of implemented NewGRF callbacks.
@ CBID_NO_CALLBACK
Set when using the callback resolve system, but not to resolve a callback.
Header file for classes to be used by e.g.
This file simplyfies and embeds a common mechanism of loading/saving and mapping of grf entities.
static const uint8_t OBJECT_SIZE_1X1
The value of a NewGRF's size property when the object is 1x1 tiles: low nibble for X,...
Definition: newgrf_object.h:43
void ResetObjects()
This function initialize the spec arrays of objects.
void DrawNewObjectTileInGUI(int x, int y, const ObjectSpec *spec, uint8_t view)
Draw representation of an object (tile) for GUI purposes.
void TriggerObjectAnimation(Object *o, ObjectAnimationTrigger trigger, const ObjectSpec *spec)
Trigger the update of animation on a whole object.
void DrawNewObjectTile(TileInfo *ti, const ObjectSpec *spec)
Draw an object on the map.
ObjectFlags
Various object behaviours.
Definition: newgrf_object.h:24
@ OBJECT_FLAG_CLEAR_INCOME
When object is cleared a positive income is generated instead of a cost.
Definition: newgrf_object.h:30
@ OBJECT_FLAG_ALLOW_UNDER_BRIDGE
Object can built under a bridge.
Definition: newgrf_object.h:37
@ OBJECT_FLAG_HAS_NO_FOUNDATION
Do not display foundations when on a slope.
Definition: newgrf_object.h:31
@ OBJECT_FLAG_NONE
Just nothing.
Definition: newgrf_object.h:25
@ OBJECT_FLAG_AUTOREMOVE
Object get automatically removed (like "owned land").
Definition: newgrf_object.h:28
@ OBJECT_FLAG_SCALE_BY_WATER
Object count is roughly scaled by water amount at edges.
Definition: newgrf_object.h:39
@ OBJECT_FLAG_2CC_COLOUR
Object wants 2CC colour mapping.
Definition: newgrf_object.h:34
@ OBJECT_FLAG_ANIMATION
Object has animated tiles.
Definition: newgrf_object.h:32
@ OBJECT_FLAG_BUILT_ON_WATER
Object can be built on water (not required).
Definition: newgrf_object.h:29
@ OBJECT_FLAG_CANNOT_REMOVE
Object can not be removed.
Definition: newgrf_object.h:27
@ OBJECT_FLAG_NOT_ON_LAND
Object can not be on land, implicitly sets OBJECT_FLAG_BUILT_ON_WATER.
Definition: newgrf_object.h:35
@ OBJECT_FLAG_ANIM_RANDOM_BITS
Object wants random bits in "next animation frame" callback.
Definition: newgrf_object.h:38
@ OBJECT_FLAG_ONLY_IN_GAME
Object can only be built in game.
Definition: newgrf_object.h:33
@ OBJECT_FLAG_DRAW_WATER
Object wants to be drawn on water.
Definition: newgrf_object.h:36
@ OBJECT_FLAG_ONLY_IN_SCENEDIT
Object can only be constructed in the scenario editor.
Definition: newgrf_object.h:26
uint16_t GetObjectCallback(CallbackID callback, uint32_t param1, uint32_t param2, const ObjectSpec *spec, Object *o, TileIndex tile, uint8_t view=0)
Perform a callback for an object.
void TriggerObjectTileAnimation(Object *o, TileIndex tile, ObjectAnimationTrigger trigger, const ObjectSpec *spec)
Trigger the update of animation on a single tile.
ObjectClassID
Class IDs for objects.
Definition: newgrf_object.h:48
@ INVALID_OBJECT_CLASS
Class for the less fortunate.
Definition: newgrf_object.h:51
@ OBJECT_CLASS_BEGIN
The lowest valid value.
Definition: newgrf_object.h:49
@ OBJECT_CLASS_MAX
Maximum number of classes.
Definition: newgrf_object.h:50
void AnimateNewObjectTile(TileIndex tile)
Handle the animation of the object tile.
Action 2 handling.
VarSpriteGroupScope
@ VSG_SCOPE_SELF
Resolved object itself.
@ VSG_SCOPE_PARENT
Related object of the resolved one.
Functions to handle the town part of NewGRF towns.
Types related to object tiles.
uint16_t ObjectType
Types of objects.
Definition: object_type.h:14
@ Count
by amount of cargo
uint32_t StringID
Numeric value that represents a string, independent of the selected language.
Definition: strings_type.h:16
Information about animation.
const struct GRFFile * grffile
grf file that introduced this entity
A resolver object to be used with feature 0F spritegroups.
ObjectScopeResolver object_scope
The object scope resolver.
std::optional< TownScopeResolver > town_scope
The town scope resolver (created on the first call).
TownScopeResolver * GetTown()
Get the town resolver scope that belongs to this object resolver.
GrfSpecFeature GetFeature() const override
Get the feature number being resolved for.
ObjectResolverObject(const ObjectSpec *spec, Object *o, TileIndex tile, uint8_t view=0, CallbackID callback=CBID_NO_CALLBACK, uint32_t param1=0, uint32_t param2=0)
Constructor of the object resolver.
ScopeResolver * GetScope(VarSpriteGroupScope scope=VSG_SCOPE_SELF, uint8_t relative=0) override
Get a resolver for the scope.
uint32_t GetDebugID() const override
Get an identifier for the item being resolved.
Object scope resolver.
uint32_t GetVariable(uint8_t variable, [[maybe_unused]] uint32_t parameter, bool &available) const override
Used by the resolver to get values for feature 0F deterministic spritegroups.
TileIndex tile
The tile related to the object.
uint8_t view
The view of the object.
uint32_t GetRandomBits() const override
Get a few random bits.
const ObjectSpec * spec
Specification of the object type.
ObjectScopeResolver(ResolverObject &ro, Object *obj, const ObjectSpec *spec, TileIndex tile, uint8_t view=0)
Constructor of an object scope resolver.
struct Object * obj
The object the callback is ran for.
Allow incrementing of ObjectClassID variables.
Definition: newgrf_object.h:60
AnimationInfo animation
Information about the animation.
Definition: newgrf_object.h:63
bool IsEnabled() const
Test if this object is enabled.
Definition: newgrf_object.h:82
TimerGameCalendar::Date introduction_date
From when can this object be built.
Definition: newgrf_object.h:70
StringID name
The name for this object.
Definition: newgrf_object.h:64
GRFFilePropsBase< 2 > grf_prop
Properties related the the grf file.
Definition: newgrf_object.h:62
Money GetClearCost() const
Get the cost for clearing a structure of this type.
Definition: newgrf_object.h:94
uint8_t size
The size of this objects; low nibble for X, high nibble for Y.
Definition: newgrf_object.h:67
uint8_t generate_amount
Number of objects which are attempted to be generated per 256^2 map during world generation.
Definition: newgrf_object.h:76
uint8_t climate
In which climates is this object available?
Definition: newgrf_object.h:66
ObjectFlags flags
Flags/settings related to the object.
Definition: newgrf_object.h:72
uint8_t height
The height of this structure, in heightlevels; max MAX_TILE_HEIGHT.
Definition: newgrf_object.h:74
uint8_t clear_cost_multiplier
Clear cost multiplier per tile.
Definition: newgrf_object.h:69
Money GetBuildCost() const
Get the cost for building a structure of this type.
Definition: newgrf_object.h:88
uint8_t views
The number of views.
Definition: newgrf_object.h:75
TimerGameCalendar::Date end_of_life_date
When can't this object be built anymore.
Definition: newgrf_object.h:71
uint8_t build_cost_multiplier
Build cost multiplier per tile.
Definition: newgrf_object.h:68
An object, such as transmitter, on the map.
Definition: object_base.h:23
Interface for SpriteGroup-s to access the gamestate.
CallbackID callback
Callback being resolved.
virtual ScopeResolver * GetScope(VarSpriteGroupScope scope=VSG_SCOPE_SELF, uint8_t relative=0)
Get a resolver for the scope.
Interface to query and set values specific to a single VarSpriteGroupScope (action 2 scope).
ResolverObject & ro
Surrounding resolver object.
Templated helper to make a type-safe 'typedef' representing a single POD value.
Tile information, used while rendering the tile.
Definition: tile_cmd.h:43
Scope resolver for a town.
Definition: newgrf_town.h:22
Definition of the game-calendar-timer.