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00012 #include "stdafx.h"
00013 #include "debug.h"
00014 #include "newgrf_spritegroup.h"
00015 #include "industrytype.h"
00016 #include "core/random_func.hpp"
00017 #include "newgrf_sound.h"
00018 #include "water_map.h"
00019 #include <list>
00020
00022 struct GenericScopeResolver : public ScopeResolver {
00023 CargoID cargo_type;
00024 uint8 default_selection;
00025 uint8 src_industry;
00026 uint8 dst_industry;
00027 uint8 distance;
00028 AIConstructionEvent event;
00029 uint8 count;
00030 uint8 station_size;
00031
00032 GenericScopeResolver(ResolverObject *ro, bool ai_callback);
00033
00034 uint32 GetVariable(byte variable, uint32 parameter, bool *available) const;
00035
00036 private:
00037 bool ai_callback;
00038 };
00039
00040
00042 struct GenericResolverObject : public ResolverObject {
00043 GenericScopeResolver generic_scope;
00044
00045 GenericResolverObject(bool ai_callback, CallbackID callback = CBID_NO_CALLBACK);
00046
00047 ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0)
00048 {
00049 switch (scope) {
00050 case VSG_SCOPE_SELF: return &this->generic_scope;
00051 default: return ResolverObject::GetScope(scope, relative);
00052 }
00053 }
00054
00055 const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const;
00056 };
00057
00058 struct GenericCallback {
00059 const GRFFile *file;
00060 const SpriteGroup *group;
00061
00062 GenericCallback(const GRFFile *file, const SpriteGroup *group) :
00063 file(file),
00064 group(group)
00065 { }
00066 };
00067
00068 typedef std::list<GenericCallback> GenericCallbackList;
00069
00070 static GenericCallbackList _gcl[GSF_END];
00071
00072
00076 void ResetGenericCallbacks()
00077 {
00078 for (uint8 feature = 0; feature < lengthof(_gcl); feature++) {
00079 _gcl[feature].clear();
00080 }
00081 }
00082
00083
00090 void AddGenericCallback(uint8 feature, const GRFFile *file, const SpriteGroup *group)
00091 {
00092 if (feature >= lengthof(_gcl)) {
00093 grfmsg(5, "AddGenericCallback: Unsupported feature 0x%02X", feature);
00094 return;
00095 }
00096
00097
00098
00099
00100 _gcl[feature].push_front(GenericCallback(file, group));
00101 }
00102
00103 uint32 GenericScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
00104 {
00105 if (this->ai_callback) {
00106 switch (variable) {
00107 case 0x40: return this->ro->grffile->cargo_map[this->cargo_type];
00108
00109 case 0x80: return this->cargo_type;
00110 case 0x81: return CargoSpec::Get(this->cargo_type)->bitnum;
00111 case 0x82: return this->default_selection;
00112 case 0x83: return this->src_industry;
00113 case 0x84: return this->dst_industry;
00114 case 0x85: return this->distance;
00115 case 0x86: return this->event;
00116 case 0x87: return this->count;
00117 case 0x88: return this->station_size;
00118
00119 default: break;
00120 }
00121 }
00122
00123 DEBUG(grf, 1, "Unhandled generic feature variable 0x%02X", variable);
00124
00125 *available = false;
00126 return UINT_MAX;
00127 }
00128
00129
00130 const SpriteGroup *GenericResolverObject::ResolveReal(const RealSpriteGroup *group) const
00131 {
00132 if (group->num_loaded == 0) return NULL;
00133
00134 return group->loaded[0];
00135 }
00136
00142 GenericResolverObject::GenericResolverObject(bool ai_callback, CallbackID callback) : ResolverObject(NULL, callback), generic_scope(this, ai_callback)
00143 {
00144 }
00145
00151 GenericScopeResolver::GenericScopeResolver(ResolverObject *ro, bool ai_callback) : ScopeResolver(ro)
00152 {
00153 this->cargo_type = 0;
00154 this->default_selection = 0;
00155 this->src_industry = 0;
00156 this->dst_industry = 0;
00157 this->distance = 0;
00158 this->event = (AIConstructionEvent)0;
00159 this->count = 0;
00160 this->station_size = 0;
00161 this->ai_callback = ai_callback;
00162 }
00163
00164
00176 static uint16 GetGenericCallbackResult(uint8 feature, ResolverObject *object, uint32 param1_grfv7, uint32 param1_grfv8, const GRFFile **file)
00177 {
00178 assert(feature < lengthof(_gcl));
00179
00180
00181 for (GenericCallbackList::const_iterator it = _gcl[feature].begin(); it != _gcl[feature].end(); ++it) {
00182 const SpriteGroup *group = it->group;
00183 object->grffile = it->file;
00184
00185 object->callback_param1 = it->file->grf_version >= 8 ? param1_grfv8 : param1_grfv7;
00186 group = SpriteGroup::Resolve(group, object);
00187 if (group == NULL || group->GetCallbackResult() == CALLBACK_FAILED) continue;
00188
00189
00190 if (file != NULL) *file = it->file;
00191
00192 return group->GetCallbackResult();
00193 }
00194
00195
00196 return CALLBACK_FAILED;
00197 }
00198
00199
00216 uint16 GetAiPurchaseCallbackResult(uint8 feature, CargoID cargo_type, uint8 default_selection, IndustryType src_industry, IndustryType dst_industry, uint8 distance, AIConstructionEvent event, uint8 count, uint8 station_size, const GRFFile **file)
00217 {
00218 GenericResolverObject object(true, CBID_GENERIC_AI_PURCHASE_SELECTION);
00219
00220 if (src_industry != IT_AI_UNKNOWN && src_industry != IT_AI_TOWN) {
00221 const IndustrySpec *is = GetIndustrySpec(src_industry);
00222
00223 if (is->grf_prop.subst_id != INVALID_INDUSTRYTYPE) src_industry = is->grf_prop.subst_id;
00224 }
00225
00226 if (dst_industry != IT_AI_UNKNOWN && dst_industry != IT_AI_TOWN) {
00227 const IndustrySpec *is = GetIndustrySpec(dst_industry);
00228
00229 if (is->grf_prop.subst_id != INVALID_INDUSTRYTYPE) dst_industry = is->grf_prop.subst_id;
00230 }
00231
00232 object.generic_scope.cargo_type = cargo_type;
00233 object.generic_scope.default_selection = default_selection;
00234 object.generic_scope.src_industry = src_industry;
00235 object.generic_scope.dst_industry = dst_industry;
00236 object.generic_scope.distance = distance;
00237 object.generic_scope.event = event;
00238 object.generic_scope.count = count;
00239 object.generic_scope.station_size = station_size;
00240
00241 uint16 callback = GetGenericCallbackResult(feature, &object, 0, 0, file);
00242 if (callback != CALLBACK_FAILED) callback = GB(callback, 0, 8);
00243 return callback;
00244 }
00245
00246
00251 void AmbientSoundEffectCallback(TileIndex tile)
00252 {
00253 assert(IsTileType(tile, MP_CLEAR) || IsTileType(tile, MP_TREES) || IsTileType(tile, MP_WATER));
00254
00255
00256 uint32 r;
00257 if (!Chance16R(1, 200, r)) return;
00258
00259
00260 GenericResolverObject object(false, CBID_SOUNDS_AMBIENT_EFFECT);
00261
00262 uint32 param1_v7 = GetTileType(tile) << 28 | Clamp(TileHeight(tile), 0, 15) << 24 | GB(r, 16, 8) << 16 | GetTerrainType(tile);
00263 uint32 param1_v8 = GetTileType(tile) << 24 | GetTileZ(tile) << 16 | GB(r, 16, 8) << 8 | (HasTileWaterClass(tile) ? GetWaterClass(tile) : 0) << 3 | GetTerrainType(tile);
00264
00265
00266 const GRFFile *grf_file;
00267 uint16 callback = GetGenericCallbackResult(GSF_SOUNDFX, &object, param1_v7, param1_v8, &grf_file);
00268
00269 if (callback != CALLBACK_FAILED) PlayTileSound(grf_file, callback, tile);
00270 }