Go to the documentation of this file.00001
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00012 #include "stdafx.h"
00013 #include "debug.h"
00014 #include "newgrf_spritegroup.h"
00015
00016 static uint32 CargoGetRandomBits(const ResolverObject *object)
00017 {
00018 return 0;
00019 }
00020
00021
00022 static uint32 CargoGetTriggers(const ResolverObject *object)
00023 {
00024 return 0;
00025 }
00026
00027
00028 static void CargoSetTriggers(const ResolverObject *object, int triggers)
00029 {
00030 return;
00031 }
00032
00033
00034 static uint32 CargoGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available)
00035 {
00036 DEBUG(grf, 1, "Unhandled cargo variable 0x%X", variable);
00037
00038 *available = false;
00039 return UINT_MAX;
00040 }
00041
00042
00043 static const SpriteGroup *CargoResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00044 {
00045
00046
00047 if (group->num_loaded > 0) return group->loaded[0];
00048 if (group->num_loading > 0) return group->loading[0];
00049
00050 return NULL;
00051 }
00052
00053
00054 static void NewCargoResolver(ResolverObject *res, const CargoSpec *cs)
00055 {
00056 res->GetRandomBits = &CargoGetRandomBits;
00057 res->GetTriggers = &CargoGetTriggers;
00058 res->SetTriggers = &CargoSetTriggers;
00059 res->GetVariable = &CargoGetVariable;
00060 res->ResolveReal = &CargoResolveReal;
00061
00062 res->u.cargo.cs = cs;
00063
00064 res->callback = CBID_NO_CALLBACK;
00065 res->callback_param1 = 0;
00066 res->callback_param2 = 0;
00067 res->ResetState();
00068
00069 res->grffile = cs->grffile;
00070 }
00071
00072
00073 SpriteID GetCustomCargoSprite(const CargoSpec *cs)
00074 {
00075 const SpriteGroup *group;
00076 ResolverObject object;
00077
00078 NewCargoResolver(&object, cs);
00079
00080 group = SpriteGroup::Resolve(cs->group, &object);
00081 if (group == NULL) return 0;
00082
00083 return group->GetResult();
00084 }
00085
00086
00087 uint16 GetCargoCallback(CallbackID callback, uint32 param1, uint32 param2, const CargoSpec *cs)
00088 {
00089 ResolverObject object;
00090 const SpriteGroup *group;
00091
00092 NewCargoResolver(&object, cs);
00093 object.callback = callback;
00094 object.callback_param1 = param1;
00095 object.callback_param2 = param2;
00096
00097 group = SpriteGroup::Resolve(cs->group, &object);
00098 if (group == NULL) return CALLBACK_FAILED;
00099
00100 return group->GetCallbackResult();
00101 }
00102
00103
00104 CargoID GetCargoTranslation(uint8 cargo, const GRFFile *grffile, bool usebit)
00105 {
00106
00107 if (grffile->grf_version < 7) {
00108 if (!usebit) return cargo;
00109
00110 if (HasBit(_cargo_mask, cargo)) return GetCargoIDByBitnum(cargo);
00111 } else {
00112
00113 if (grffile->cargo_max > 0) {
00114
00115
00116 if (cargo < grffile->cargo_max) return GetCargoIDByLabel(grffile->cargo_list[cargo]);
00117 } else {
00118
00119 if (HasBit(_cargo_mask, cargo)) return GetCargoIDByBitnum(cargo);
00120 }
00121 }
00122 return CT_INVALID;
00123 }
00124
00125 uint8 GetReverseCargoTranslation(CargoID cargo, const GRFFile *grffile)
00126 {
00127
00128 const CargoSpec *cs = CargoSpec::Get(cargo);
00129
00130
00131
00132 for (uint i = 0; i < grffile->cargo_max; i++) {
00133 if (cs->label == grffile->cargo_list[i]) return i;
00134 }
00135
00136
00137 return cs->bitnum;
00138 }