| OpenTTD
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Interface for SpriteGroup-s to access the gamestate. More...
#include <newgrf_spritegroup.h>
 
  
 | Public Member Functions | |
| ResolverObject (const GRFFile *grffile, CallbackID callback=CBID_NO_CALLBACK, uint32 callback_param1=0, uint32 callback_param2=0) | |
| Resolver constructor. | |
| const SpriteGroup * | Resolve () | 
| Resolve SpriteGroup. | |
| uint16 | ResolveCallback () | 
| Resolve callback. | |
| virtual const SpriteGroup * | ResolveReal (const RealSpriteGroup *group) const | 
| Get the real sprites of the grf. | |
| virtual ScopeResolver * | GetScope (VarSpriteGroupScope scope=VSG_SCOPE_SELF, byte relative=0) | 
| Get a resolver for the scope. | |
| uint32 | GetReseedSum () const | 
| Returns the OR-sum of all bits that need reseeding independent of the scope they were accessed with. | |
| void | ResetState () | 
| Resets the dynamic state of the resolver object. | |
| Data Fields | |
| ScopeResolver | default_scope | 
| Default implementation of the grf scope. | |
| CallbackID | callback | 
| Callback being resolved. | |
| uint32 | callback_param1 | 
| First parameter (var 10) of the callback. | |
| uint32 | callback_param2 | 
| Second parameter (var 18) of the callback. | |
| byte | trigger | 
| uint32 | last_value | 
| Result of most recent DeterministicSpriteGroup (including procedure calls) | |
| uint32 | reseed [VSG_END] | 
| Collects bits to rerandomise while triggering triggers. | |
| const GRFFile * | grffile | 
| GRFFile the resolved SpriteGroup belongs to. | |
| const SpriteGroup * | root_spritegroup | 
| Root SpriteGroup to use for resolving. | |
Interface for SpriteGroup-s to access the gamestate.
Using this interface SpriteGroup-chains (action 1-2-3 chains) can be resolved, to get the results of callbacks, rerandomisations or normal sprite lookups.
Definition at line 308 of file newgrf_spritegroup.h.
| ResolverObject::ResolverObject | ( | const GRFFile * | grffile, | 
| CallbackID | callback = CBID_NO_CALLBACK, | ||
| uint32 | callback_param1 = 0, | ||
| uint32 | callback_param2 = 0 | ||
| ) | 
Resolver constructor.
| grffile | NewGRF file associated with the object (or NULLif none). | 
| callback | Callback code being resolved (default value is CBID_NO_CALLBACK). | 
| callback_param1 | First parameter (var 10) of the callback (only used when callback is also set). | 
| callback_param2 | Second parameter (var 18) of the callback (only used when callback is also set). | 
Definition at line 146 of file newgrf_spritegroup.cpp.
References callback, callback_param1, callback_param2, grffile, ResetState(), and root_spritegroup.
| 
 | inline | 
Returns the OR-sum of all bits that need reseeding independent of the scope they were accessed with.
Definition at line 354 of file newgrf_spritegroup.h.
References reseed.
| 
 | virtual | 
Get a resolver for the scope.
| scope | Scope to return. | 
| relative | Additional parameter for VSG_SCOPE_RELATIVE. | 
Reimplemented in ObjectResolverObject, VehicleResolverObject, StationResolverObject, GenericResolverObject, HouseResolverObject, IndustriesResolverObject, AirportResolverObject, CanalResolverObject, AirportTileResolverObject, IndustryTileResolverObject, TownResolverObject, and RailTypeResolverObject.
Definition at line 176 of file newgrf_spritegroup.cpp.
References default_scope.
| 
 | inline | 
Resets the dynamic state of the resolver object.
To be called before resolving an Action-1-2-3 chain.
Definition at line 367 of file newgrf_spritegroup.h.
References last_value, and reseed.
Referenced by ResolverObject().
| 
 | inline | 
Resolve SpriteGroup.
Definition at line 330 of file newgrf_spritegroup.h.
References root_spritegroup.
Referenced by ResolveCallback().
| 
 | inline | 
Resolve callback.
Definition at line 339 of file newgrf_spritegroup.h.
References CALLBACK_FAILED, and Resolve().
| 
 | virtual | 
Get the real sprites of the grf.
| group | Group to get. | 
Reimplemented in StationResolverObject, VehicleResolverObject, GenericResolverObject, AirportResolverObject, CanalResolverObject, RailTypeResolverObject, and CargoResolverObject.
Definition at line 165 of file newgrf_spritegroup.cpp.
 1.8.1.2
 1.8.1.2