A reimplementation of Mario Kart Wii's physics engine in C++
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ObjectDirector.cc
1#include "ObjectDirector.hh"
2
3#include "game/field/BoxColManager.hh"
4#include "game/field/ObjectDrivableDirector.hh"
5#include "game/field/obj/ObjectRegistry.hh"
6
7#include "game/kart/KartObject.hh"
8
9#include "game/system/CourseMap.hh"
10#include "game/system/RaceConfig.hh"
11
12namespace Kinoko::Field {
13
15void ObjectDirector::init() {
16 for (auto *&obj : m_objects) {
17 obj->init();
18 obj->calcModel();
19 }
20
21 ObjectDrivableDirector::Instance()->init();
22}
23
25void ObjectDirector::calc() {
26 for (auto *&obj : m_calcObjects) {
27 obj->calc();
28 }
29
30 for (auto *&obj : m_calcObjects) {
31 obj->calcModel();
32 }
33
34 ObjectDrivableDirector::Instance()->calc();
35}
36
38void ObjectDirector::addObject(ObjectCollidable *obj) {
39 u32 loadFlags = obj->loadFlags();
40
41 if (loadFlags & 1) {
42 m_calcObjects.push_back(obj);
43 }
44
45 const auto *set = m_flowTable.set(m_flowTable.slot(obj->id()));
46
47 // In the base game, it's possible an object here will access slot -1 (e.g. Moonview Highway
48 // cars). We add a nullptr check here to prevent this.
49 if (set && set->mode != 0) {
50 if (obj->collision()) {
51 m_collisionObjects.push_back(obj);
52 }
53 }
54
55 m_objects.push_back(obj);
56}
57
58void ObjectDirector::addObjectNoImpl(ObjectBase *obj) {
59 m_objects.push_back(obj);
60}
61
63void ObjectDirector::addManagedObject(ObjectCollidable *obj) {
64 m_managedObjects.push_back(obj);
65}
66
68size_t ObjectDirector::checkKartObjectCollision(Kart::KartObject *kartObj,
69 ObjectCollisionConvexHull *convexHull) {
70 size_t count = 0;
71
72 while (ObjectCollidable *obj = BoxColManager::Instance()->getNextObject()) {
73 auto *objCollision = obj->collision();
74 if (!objCollision) {
75 continue;
76 }
77
78 obj->calcCollisionTransform();
79 if (!obj->checkCollision(convexHull, m_hitDepths[count])) {
80 continue;
81 }
82
83 // We have a collision, process it
84 // Assume that we are not in a star, mega, or bullet
85 Kart::Reaction reactionOnKart = m_hitTableKart.reaction(m_hitTableKart.slot(obj->id()));
86 Kart::Reaction reactionOnObj =
87 m_hitTableKartObject.reaction(m_hitTableKartObject.slot(obj->id()));
88
89 // The object might change the reaction states
90 obj->processKartReactions(kartObj, reactionOnKart, reactionOnObj);
91
92 Kart::Reaction reaction =
93 obj->onCollision(kartObj, reactionOnKart, reactionOnObj, m_hitDepths[count]);
94 m_reactions[count] = reaction;
95
96 if (reaction == Kart::Reaction::WallAllSpeed || reaction == Kart::Reaction::WallSpark) {
97 obj->onWallCollision(kartObj, m_hitDepths[count]);
98 } else {
99 obj->onObjectCollision(kartObj);
100 }
101
102 m_collidingObjects[count] = obj;
103 if (m_hitDepths[count].y < 0.0f) {
104 m_hitDepths[count].y = 0.0f;
105 }
106
107 ++count;
108 }
109
110 return count;
111}
112
114f32 ObjectDirector::distAboveRisingWater(f32 offset) const {
115 ASSERT(m_psea);
116 return offset - m_psea->pos().y;
117}
118
120f32 ObjectDirector::risingWaterKillPlaneHeight() const {
121 ASSERT(m_psea);
122 return m_psea->pos().y - 260.0f;
123}
124
126ObjectDirector *ObjectDirector::CreateInstance() {
127 ASSERT(!s_instance);
128 s_instance = EGG::egg_new<ObjectDirector>();
129
130 ObjectDrivableDirector::CreateInstance();
131
132 s_instance->createObjects();
133
134 return s_instance;
135}
136
138void ObjectDirector::DestroyInstance() {
139 ASSERT(s_instance);
140 auto *instance = s_instance;
141 s_instance = nullptr;
142 EGG::egg_delete(instance);
143
144 ObjectDrivableDirector::DestroyInstance();
145}
146
148ObjectDirector::ObjectDirector()
149 : m_flowTable("ObjFlow.bin"), m_hitTableKart("GeoHitTableKart.bin"),
150 m_hitTableKartObject("GeoHitTableKartObj.bin"), m_psea(nullptr) {}
151
153ObjectDirector::~ObjectDirector() {
154 if (s_instance) {
155 s_instance = nullptr;
156 WARN("ObjectDirector instance not explicitly handled!");
157 }
158
159 for (auto *&obj : m_objects) {
160 EGG::egg_delete(obj);
161 }
162}
163
165void ObjectDirector::createObjects() {
166 const auto *courseMap = System::CourseMap::Instance();
167 size_t objectCount = courseMap->getGeoObjCount();
168
169 // It's possible for the KMP to specify settings for objects that aren't tracked here
170 // MAX_UNIT_COUNT is the upper bound for tracked object count, so we reserve the minimum
171 size_t maxCount = std::min(objectCount, MAX_UNIT_COUNT);
172 m_objects.reserve(maxCount);
173 m_calcObjects.reserve(maxCount);
174 m_collisionObjects.reserve(maxCount);
175
176 auto *objDrivableDir = ObjectDrivableDirector::Instance();
177 auto course = System::RaceConfig::Instance()->raceScenario().course;
178 bool rGV2 = course == Course::SNES_Ghost_Valley_2;
179 bool sun = false;
180
181 // The max pitch of the Chain Chomp only needs to be set once,
182 // so we set it here instead of in the Chain Chomp constructor.
183 s_wanwanMaxPitch = course == Course::GCN_Mario_Circuit ? -20.0f : -30.0f;
184
185 for (size_t i = 0; i < objectCount; ++i) {
186 const auto *pObj = courseMap->getGeoObj(i);
187 ASSERT(pObj);
188
189 // Assume one player - if the presence flag isn't set, don't construct it
190 if (!(pObj->presenceFlag() & 1)) {
191 continue;
192 }
193
194 // Prevent construction of objects with disabled or no collision
195 if (IsObjectBlacklisted(pObj->id())) {
196 continue;
197 }
198
199 // rGV2's blocks are created outside of the factory function
200 if (rGV2) {
201 switch (static_cast<ObjectId>(pObj->id())) {
202 case ObjectId::ObakeBlockSFCc:
203 case ObjectId::ObakeBlock2SFCc:
204 case ObjectId::ObakeBlock3SFCc: {
205 // Create the manager if this is the first block.
206 auto *obakeManager = objDrivableDir->obakeManager();
207 if (!obakeManager) {
208 objDrivableDir->createObakeManager(*pObj);
209 } else {
210 obakeManager->addBlock(*pObj);
211 }
212 } break;
213 default:
214 break;
215 }
216 }
217
218 ObjectBase *object = createObject(*pObj);
219 object->load();
220
221 if (object->id() == ObjectId::SunDS) {
222 sun = true;
223 }
224 }
225
226 if (course == Course::Moonview_Highway) {
227 auto *highwayMgr = EGG::egg_new<ObjectHighwayManager>();
228 highwayMgr->load();
229 }
230
231 if (sun) {
232 auto *sunMgr = EGG::egg_new<ObjectSunManager>();
233 sunMgr->load();
234 }
235
236 if (course == Course::GBA_Shy_Guy_Beach) {
237 auto *shipMgr = EGG::egg_new<ObjectHeyhoShipManager>();
238 shipMgr->load();
239 }
240}
241
243ObjectBase *ObjectDirector::createObject(const System::MapdataGeoObj &params) {
244 ObjectId id = static_cast<ObjectId>(params.id());
245 switch (id) {
246 case ObjectId::Psea:
247 return EGG::egg_new<ObjectPsea>(params);
248 case ObjectId::Woodbox:
249 return EGG::egg_new<ObjectWoodbox>(params);
250 case ObjectId::WLWallGC:
251 return EGG::egg_new<ObjectWLWallGC>(params);
252 case ObjectId::CarA1:
253 case ObjectId::CarA2:
254 case ObjectId::CarA3:
255 return EGG::egg_new<ObjectCarA>(params);
256 case ObjectId::Basabasa:
257 return EGG::egg_new<ObjectBasabasa>(params);
258 case ObjectId::HeyhoShipGBA:
259 return EGG::egg_new<ObjectHeyhoShip>(params);
260 case ObjectId::KartTruck:
261 case ObjectId::CarBody:
262 return EGG::egg_new<ObjectCarTGE>(params);
263 case ObjectId::KoopaBall:
264 return EGG::egg_new<ObjectKoopaBall>(params);
265 case ObjectId::W_Woodbox:
266 return EGG::egg_new<ObjectWoodboxW>(params);
267 case ObjectId::SunDS:
268 return EGG::egg_new<ObjectSunDS>(params);
269 case ObjectId::ItemboxLine:
270 return EGG::egg_new<ObjectItemboxLine>(params);
271 case ObjectId::VolcanoBall:
272 return EGG::egg_new<ObjectVolcanoBallLauncher>(params);
273 case ObjectId::PenguinS:
274 return EGG::egg_new<ObjectPenguinS>(params);
275 case ObjectId::PenguinM:
276 return EGG::egg_new<ObjectPenguin>(params);
277 case ObjectId::Dossunc:
278 return EGG::egg_new<ObjectDossunc>(params);
279 case ObjectId::Boble:
280 return EGG::egg_new<ObjectBoble>(params);
281 case ObjectId::Hanachan:
282 return EGG::egg_new<ObjectHanachan>(params);
283 case ObjectId::Seagull:
284 return EGG::egg_new<ObjectBird>(params);
285 case ObjectId::Crab:
286 return EGG::egg_new<ObjectCrab>(params);
287 case ObjectId::Hwanwan:
288 return EGG::egg_new<ObjectHwanwanManager>(params);
289 case ObjectId::HeyhoBallGBA:
290 return EGG::egg_new<ObjectHeyhoBall>(params);
291 case ObjectId::DokanSFC:
292 return EGG::egg_new<ObjectDokan>(params);
293 case ObjectId::Pylon:
294 return EGG::egg_new<ObjectPylon>(params);
295 case ObjectId::OilSFC:
296 return EGG::egg_new<ObjectOilSFC>(params);
297 case ObjectId::ParasolR:
298 return EGG::egg_new<ObjectParasolR>(params);
299 case ObjectId::KoopaFigure64:
300 return EGG::egg_new<ObjectKoopaFigure64>(params);
301 case ObjectId::Kuribo:
302 return EGG::egg_new<ObjectKuribo>(params);
303 case ObjectId::Choropu:
304 case ObjectId::Choropu2:
305 return EGG::egg_new<ObjectChoropu>(params);
306 case ObjectId::Cow:
307 return EGG::egg_new<ObjectCowHerd>(params);
308 case ObjectId::PakkunF:
309 return EGG::egg_new<ObjectPakkunF>(params);
310 case ObjectId::WLFirebarGC:
311 case ObjectId::KoopaFirebar:
312 return EGG::egg_new<ObjectFirebar>(params);
313 case ObjectId::Wanwan:
314 return EGG::egg_new<ObjectWanwan>(params);
315 case ObjectId::Poihana:
316 return EGG::egg_new<ObjectPoihana>(params);
317 case ObjectId::Propeller:
318 return EGG::egg_new<ObjectPropeller>(params);
319 case ObjectId::DKRockGC:
320 return EGG::egg_new<ObjectRock>(params);
321 case ObjectId::Sanbo:
322 return EGG::egg_new<ObjectSanbo>(params);
323 case ObjectId::TruckWagon:
324 return EGG::egg_new<ObjectTruckWagon>(params);
325 case ObjectId::Heyho:
326 return EGG::egg_new<ObjectHeyho>(params);
327 case ObjectId::Press:
328 return EGG::egg_new<ObjectPress>(params);
329 case ObjectId::WLFireRingGC:
330 return EGG::egg_new<ObjectFireRing>(params);
331 case ObjectId::FireSnake:
332 return EGG::egg_new<ObjectFireSnake>(params);
333 case ObjectId::FireSnakeV:
334 return EGG::egg_new<ObjectFireSnakeV>(params);
335 case ObjectId::PuchiPakkun:
336 return EGG::egg_new<ObjectPuchiPakkun>(params);
337 case ObjectId::KinokoUd:
338 return EGG::egg_new<ObjectKinokoUd>(params);
339 case ObjectId::KinokoBend:
340 return EGG::egg_new<ObjectKinokoBend>(params);
341 case ObjectId::VolcanoRock:
342 return EGG::egg_new<ObjectVolcanoRock>(params);
343 case ObjectId::BulldozerL:
344 case ObjectId::BulldozerR:
345 return EGG::egg_new<ObjectBulldozer>(params);
346 case ObjectId::KinokoNm:
347 return EGG::egg_new<ObjectKinokoNm>(params);
348 case ObjectId::Crane:
349 return EGG::egg_new<ObjectCrane>(params);
350 case ObjectId::VolcanoPiece:
351 return EGG::egg_new<ObjectVolcanoPiece>(params);
352 case ObjectId::FlamePole:
353 return EGG::egg_new<ObjectFlamePoleFoot>(params);
354 case ObjectId::TwistedWay:
355 return EGG::egg_new<ObjectTwistedWay>(params);
356 case ObjectId::TownBridge:
357 return EGG::egg_new<ObjectTownBridge>(params);
358 case ObjectId::DKShip64:
359 return EGG::egg_new<ObjectShip64>(params);
360 case ObjectId::Turibashi:
361 return EGG::egg_new<ObjectTuribashi>(params);
362 case ObjectId::Aurora:
363 return EGG::egg_new<ObjectAurora>(params);
364 case ObjectId::DCPillar:
365 return EGG::egg_new<ObjectPillar>(params);
366 case ObjectId::Sandcone:
367 return EGG::egg_new<ObjectSandcone>(params);
368 case ObjectId::FlamePoleV:
369 case ObjectId::FlamePoleVBig:
370 return EGG::egg_new<ObjectFlamePoleV>(params);
371 case ObjectId::Ami:
372 return EGG::egg_new<ObjectAmi>(params);
373 case ObjectId::BeltEasy:
374 return EGG::egg_new<ObjectBeltEasy>(params);
375 case ObjectId::BeltCrossing:
376 return EGG::egg_new<ObjectBeltCrossing>(params);
377 case ObjectId::BeltCurveA:
378 return EGG::egg_new<ObjectBeltCurveA>(params);
379 case ObjectId::Escalator:
380 return EGG::egg_new<ObjectEscalator>(params);
381 case ObjectId::EscalatorGroup:
382 return EGG::egg_new<ObjectEscalatorGroup>(params);
383
384 // Non-specified objects are stock collidable objects by default
385 // However, we need to specify an impl, so we don't use default
386 case ObjectId::DummyPole:
387 case ObjectId::CastleTree1c:
388 case ObjectId::MarioTreeGCc:
389 case ObjectId::PeachTreeGCc:
390 case ObjectId::MarioGo64c:
391 case ObjectId::KinokoT1:
392 case ObjectId::PalmTree:
393 case ObjectId::Parasol:
394 case ObjectId::HeyhoTreeGBAc:
395 case ObjectId::GardenTreeDSc:
396 case ObjectId::DKtreeA64c:
397 case ObjectId::DKTreeB64c:
398 case ObjectId::TownTreeDsc:
399 case ObjectId::PakkunDokan:
400 return EGG::egg_new<ObjectCollidable>(params);
401 case ObjectId::WLDokanGC:
402 case ObjectId::Mdush:
403 return EGG::egg_new<ObjectKCL>(params);
404 default:
405 return EGG::egg_new<ObjectNoImpl>(params);
406 }
407}
408
409f32 ObjectDirector::s_wanwanMaxPitch;
410
411ObjectDirector *ObjectDirector::s_instance = nullptr;
412
413} // namespace Kinoko::Field
Smallest convex shape that encloses a given set of points.
std::vector< ObjectBase *, EGG::Allocator< ObjectBase * > > m_calcObjects
Objects needing calc() live here too.
std::vector< ObjectBase *, EGG::Allocator< ObjectBase * > > m_collisionObjects
Objects having collision live here too.
std::array< ObjectCollidable *, MAX_UNIT_COUNT > m_collidingObjects
Objects we are currently colliding with.
std::vector< ObjectBase *, EGG::Allocator< ObjectBase * > > m_objects
All objects live here.
Pertains to collision.