mlange-42/ark | Build 13608425362 | ecs/storage.go | Coveralls

25

func newStorage(capacity uint32) storage {

121✔

26

        reg := newComponentRegistry()

121✔

27

        entities := make([]entityIndex, reservedEntities, capacity+reservedEntities)

121✔

28

        isTarget := make([]bool, reservedEntities, capacity+reservedEntities)

121✔

29

        // Reserved zero and wildcard entities

121✔

30

        for i := range reservedEntities {

363✔

31

                entities[i] = entityIndex{table: maxTableID, row: 0}

242✔

32

242✔

33

        componentsMap := make([]int16, MaskTotalBits)

121✔

34

        for i := range MaskTotalBits {

31,097✔

35

                componentsMap[i] = -1

30,976✔

36

30,976✔

38

        tables := make([]table, 0, 128)

121✔

39

        tables = append(tables, newTable(0, 0, capacity, &reg, []ID{}, componentsMap, []bool{}, []Entity{}, []RelationID{}))

121✔

40

        archetypes := make([]archetype, 0, 128)

121✔

41

        archetypes = append(archetypes, newArchetype(0, &Mask{}, []ID{}, []tableID{0}, &reg))

121✔

42

        return storage{

121✔

43

                registry:        reg,

121✔

44

                entities:        entities,

121✔

45

                isTarget:        isTarget,

121✔

46

                entityPool:      newEntityPool(capacity, reservedEntities),

121✔

47

                archetypes:      archetypes,

121✔

48

                tables:          tables,

121✔

49

                initialCapacity: capacity,

121✔

50

                components:      make([]componentStorage, 0, MaskTotalBits),

121✔

51

121✔

54

func (s *storage) findOrCreateTable(oldTable *table, mask *Mask, relations []RelationID) *table {

517,733✔

55

        // TODO: use archetype graph

517,733✔

56

        var arch *archetype

517,733✔

57

        for i := range s.archetypes {

1,553,129✔

58

                if s.archetypes[i].mask.Equals(mask) {

1,552,983✔

59

                        arch = &s.archetypes[i]

517,587✔

60

                        break

517,587✔

63

        if arch == nil {

517,879✔

64

                arch = s.createArchetype(mask)

146✔

65

146✔

66

        allRelation := appendNew(oldTable.relationIDs, relations...)

517,733✔

67

        table, ok := arch.GetTable(s, allRelation)

517,733✔

68

        if !ok {

517,904✔

69

                table = s.createTable(arch, allRelation)

171✔

70

171✔

71

        return table

517,733✔

74

func (s *storage) AddComponent(id uint8) {

486✔

75

        if len(s.components) != int(id) {

486✔

78

        s.components = append(s.components, componentStorage{columns: make([]*column, len(s.tables))})

486✔

82

func (s *storage) RemoveEntity(entity Entity) {

516,114✔

83

        if !s.entityPool.Alive(entity) {

516,114✔

86

        index := &s.entities[entity.id]

516,114✔

87

        table := &s.tables[index.table]

516,114✔

88

516,114✔

89

        swapped := table.Remove(index.row)

516,114✔

90

516,114✔

91

        s.entityPool.Recycle(entity)

516,114✔

92

516,114✔

93

        if swapped {

1,030,998✔

94

                swapEntity := table.GetEntity(uintptr(index.row))

514,884✔

95

                s.entities[swapEntity.id].row = index.row

514,884✔

96

514,884✔

97

        index.table = maxTableID

516,114✔

98

516,114✔

99

        if s.isTarget[entity.id] {

516,116✔

100

                s.cleanupArchetypes(entity)

2✔

101

                s.isTarget[entity.id] = false

2✔

102

2✔

105

func (s *storage) Reset() {

1✔

106

        s.entities = s.entities[:reservedEntities]

1✔

107

        s.entityPool.Reset()

1✔

108

        s.isTarget = s.isTarget[:reservedEntities]

1✔

109

1✔

110

        for i := range s.archetypes {

5✔

111

                s.archetypes[i].Reset(s)

4✔

112

4✔

115

func (s *storage) get(entity Entity, component ID) unsafe.Pointer {

5✔

116

        if !s.entityPool.Alive(entity) {

6✔

117

                panic("can't get component of a dead entity")

1✔

119

        return s.getUnchecked(entity, component)

4✔

122

func (s *storage) getUnchecked(entity Entity, component ID) unsafe.Pointer {

5✔

123

        s.checkHasComponent(entity, component)

5✔

124

        index := s.entities[entity.id]

5✔

125

        return s.tables[index.table].Get(component, uintptr(index.row))

5✔

126

5✔

128

func (s *storage) has(entity Entity, component ID) bool {

17✔

129

        if !s.entityPool.Alive(entity) {

18✔

130

                panic("can't get component of a dead entity")

1✔

132

        return s.hasUnchecked(entity, component)

16✔

135

func (s *storage) hasUnchecked(entity Entity, component ID) bool {

18✔

136

        s.checkHasComponent(entity, component)

18✔

137

        index := s.entities[entity.id]

18✔

138

        return s.tables[index.table].Has(component)

18✔

139

18✔

141

func (s *storage) getRelation(entity Entity, comp ID) Entity {

129✔

142

        if !s.entityPool.Alive(entity) {

129✔

145

        return s.getRelationUnchecked(entity, comp)

129✔

148

func (s *storage) getRelationUnchecked(entity Entity, comp ID) Entity {

133✔

149

        s.checkHasComponent(entity, comp)

133✔

150

        return s.tables[s.entities[entity.id].table].GetRelation(comp)

133✔

151

133✔

153

func (s *storage) registerTargets(relations []RelationID) {

517,776✔

154

        for _, rel := range relations {

518,252✔

155

                s.isTarget[rel.target.id] = true

476✔

156

476✔

159

func (s *storage) createEntity(table tableID) (Entity, uint32) {

517,403✔

160

        entity := s.entityPool.Get()

517,403✔

161

517,403✔

162

        idx := s.tables[table].Add(entity)

517,403✔

163

        len := len(s.entities)

517,403✔

164

        if int(entity.id) == len {

521,801✔

165

                s.entities = append(s.entities, entityIndex{table: table, row: idx})

4,398✔

166

                s.isTarget = append(s.isTarget, false)

4,398✔

167

        } else {

517,403✔

168

                s.entities[entity.id] = entityIndex{table: table, row: idx}

513,005✔

169

513,005✔

170

        return entity, idx

517,403✔

173

func (s *storage) createEntities(table *table, count int) {

16✔

174

        startIdx := table.Len()

16✔

175

        table.Alloc(uint32(count))

16✔

176

16✔

177

        len := len(s.entities)

16✔

178

        for i := range count {

400✔

179

                index := uint32(startIdx + i)

384✔

180

                entity := s.entityPool.Get()

384✔

181

                table.SetEntity(index, entity)

384✔

182

384✔

183

                if int(entity.id) == len {

768✔

184

                        s.entities = append(s.entities, entityIndex{table: table.id, row: index})

384✔

185

                        s.isTarget = append(s.isTarget, false)

384✔

186

                        len++

384✔

187

                } else {

384✔

193

func (s *storage) createArchetype(mask *Mask) *archetype {

146✔

194

        comps := mask.toTypes(&s.registry.registry)

146✔

195

        index := len(s.archetypes)

146✔

196

        s.archetypes = append(s.archetypes, newArchetype(archetypeID(index), mask, comps, nil, &s.registry))

146✔

197

        archetype := &s.archetypes[index]

146✔

198

        if archetype.HasRelations() {

174✔

199

                s.relationArchetypes = append(s.relationArchetypes, archetype.id)

28✔

200

28✔

201

        return archetype

146✔

204

func (s *storage) createTable(archetype *archetype, relations []RelationID) *table {

185✔

205

        targets := make([]Entity, len(archetype.components))

185✔

206

        numRelations := uint8(0)

185✔

207

        for _, rel := range relations {

260✔

208

                idx := archetype.componentsMap[rel.component.id]

75✔

209

                targets[idx] = rel.target

75✔

210

                numRelations++

75✔

211

75✔

212

        if numRelations != archetype.numRelations {

185✔

216

        var newTableID tableID

185✔

217

        if id, ok := archetype.GetFreeTable(); ok {

186✔

218

                newTableID = id

1✔

219

                s.tables[newTableID].recycle(targets, relations)

1✔

220

        } else {

185✔

221

                newTableID = tableID(len(s.tables))

184✔

222

                s.tables = append(s.tables, newTable(

184✔

223

                        newTableID, archetype.id, s.initialCapacity, &s.registry,

184✔

224

                        archetype.components, archetype.componentsMap,

184✔

225

                        archetype.isRelation, targets, relations))

184✔

226

184✔

227

        archetype.AddTable(&s.tables[newTableID])

185✔

228

185✔

229

        table := &s.tables[newTableID]

185✔

230

        for i := range s.components {

1,009✔

231

                id := ID{id: uint8(i)}

824✔

232

                comps := &s.components[i]

824✔

233

                if archetype.mask.Get(id) {

1,454✔

234

                        comps.columns = append(comps.columns, table.GetColumn(id))

630✔

235

                } else {

824✔

236

                        comps.columns = append(comps.columns, nil)

194✔

237

194✔

239

        return table

185✔

242

func (s *storage) getExchangeMask(mask *Mask, add []ID, rem []ID) {

646✔

243

        for _, comp := range rem {

1,636✔

244

                if !mask.Get(comp) {

990✔

247

                mask.Set(comp, false)

990✔

249

        for _, comp := range add {

1,394✔

250

                if mask.Get(comp) {

748✔

253

                mask.Set(comp, true)

748✔

258

func (s *storage) cleanupArchetypes(target Entity) {

2✔

259

        newRelations := []RelationID{}

2✔

260

        for _, arch := range s.relationArchetypes {

4✔

261

                archetype := &s.archetypes[arch]

2✔

262

                for _, t := range archetype.tables {

6✔

263

                        table := &s.tables[t]

4✔

264

4✔

265

                        foundTarget := false

4✔

266

                        for _, rel := range table.relationIDs {

8✔

267

                                if rel.target.id == target.id {

6✔

268

                                        newRelations = append(newRelations, RelationID{component: rel.component, target: Entity{}})

2✔

269

                                        foundTarget = true

2✔

270

2✔

272

                        if !foundTarget {

6✔

273

                                continue

2✔

276

                        allRelations := s.getExchangeTargetsUnchecked(table, newRelations)

2✔

277

                        newTable, ok := archetype.GetTable(s, allRelations)

2✔

278

                        if !ok {

4✔

279

                                newTable = s.createTable(archetype, newRelations)

2✔

280

2✔

281

                        s.moveEntities(table, newTable)

2✔

282

                        archetype.FreeTable(table.id)

2✔

283

2✔

284

                        newRelations = newRelations[:0]

2✔

286

                archetype.RemoveTarget(target)

2✔

291

func (s *storage) moveEntities(src, dst *table) {

2✔

292

        oldLen := dst.Len()

2✔

293

        dst.AddAll(src)

2✔

294

2✔

295

        newLen := dst.Len()

2✔

296

        newTable := dst.id

2✔

297

        for i := oldLen; i < newLen; i++ {

34✔

298

                entity := dst.GetEntity(uintptr(i))

32✔

299

                s.entities[entity.id] = entityIndex{table: newTable, row: uint32(i)}

32✔

300

32✔

301

        src.Reset()

2✔

304

func (s *storage) getExchangeTargetsUnchecked(oldTable *table, relations []RelationID) []RelationID {

2✔

305

        targets := make([]Entity, len(oldTable.columns))

2✔

306

        for i := range oldTable.columns {

6✔

307

                targets[i] = oldTable.columns[i].target

4✔

308

4✔

309

        for _, rel := range relations {

4✔

310

                index := oldTable.components[rel.component.id]

2✔

311

                if rel.target == targets[index] {

2✔

314

                targets[index] = rel.target

2✔

317

        result := make([]RelationID, 0, len(oldTable.relationIDs))

2✔

318

        for i, e := range targets {

6✔

319

                if !oldTable.columns[i].isRelation {

6✔

320

                        continue

2✔

322

                id := oldTable.ids[i]

2✔

323

                result = append(result, RelationID{component: id, target: e})

2✔

326

        return result

2✔

329

func (s *storage) getExchangeTargets(oldTable *table, relations []RelationID) ([]RelationID, bool) {

43✔

330

        changed := false

43✔

331

        targets := make([]Entity, len(oldTable.columns))

43✔

332

        for i := range oldTable.columns {

149✔

333

                targets[i] = oldTable.columns[i].target

106✔

334

106✔

335

        for _, rel := range relations {

87✔

336

                if !rel.target.IsZero() && !s.entityPool.Alive(rel.target) {

44✔

339

                index := oldTable.components[rel.component.id]

44✔

340

                if !oldTable.columns[index].isRelation {

44✔

343

                if rel.target == targets[index] {

44✔

346

                targets[index] = rel.target

44✔

347

                changed = true

44✔

349

        if !changed {

43✔

353

        result := make([]RelationID, 0, len(oldTable.relationIDs))

43✔

354

        for i, e := range targets {

149✔

355

                if !oldTable.columns[i].isRelation {

167✔

356

                        continue

61✔

358

                id := oldTable.ids[i]

45✔

359

                result = append(result, RelationID{component: id, target: e})

45✔

362

        return result, true

43✔

mlange-42 / ark / 13608425362

Source File
Press 'n' to go to next uncovered line, 'b' for previous

1	package ecs
2
3	import (
4	"fmt"
5	"unsafe"
6	)
7
8	type storage struct {
9	registry componentRegistry
10	entities entities
11	isTarget []bool
12	entityPool entityPool
13
14	archetypes []archetype
15	relationArchetypes []archetypeID
16	tables []table
17	components []componentStorage
18	initialCapacity uint32
19	}
20
21	type componentStorage struct {
22	columns []*column
23	}
24
25	func newStorage(capacity uint32) storage {	121✔
26	reg := newComponentRegistry()	121✔
27	entities := make([]entityIndex, reservedEntities, capacity+reservedEntities)	121✔
28	isTarget := make([]bool, reservedEntities, capacity+reservedEntities)	121✔
29	// Reserved zero and wildcard entities	121✔
30	for i := range reservedEntities {	363✔
31	entities[i] = entityIndex{table: maxTableID, row: 0}	242✔
32	}	242✔
33	componentsMap := make([]int16, MaskTotalBits)	121✔
34	for i := range MaskTotalBits {	31,097✔
35	componentsMap[i] = -1	30,976✔
36	}	30,976✔
37
38	tables := make([]table, 0, 128)	121✔
39	tables = append(tables, newTable(0, 0, capacity, &reg, []ID{}, componentsMap, []bool{}, []Entity{}, []RelationID{}))	121✔
40	archetypes := make([]archetype, 0, 128)	121✔
41	archetypes = append(archetypes, newArchetype(0, &Mask{}, []ID{}, []tableID{0}, &reg))	121✔
42	return storage{	121✔
43	registry: reg,	121✔
44	entities: entities,	121✔
45	isTarget: isTarget,	121✔
46	entityPool: newEntityPool(capacity, reservedEntities),	121✔
47	archetypes: archetypes,	121✔
48	tables: tables,	121✔
49	initialCapacity: capacity,	121✔
50	components: make([]componentStorage, 0, MaskTotalBits),	121✔
51	}	121✔
52	}
53
54	func (s storage) findOrCreateTable(oldTable table, mask Mask, relations []RelationID) table {	517,733✔
55	// TODO: use archetype graph	517,733✔
56	var arch *archetype	517,733✔
57	for i := range s.archetypes {	1,553,129✔
58	if s.archetypes[i].mask.Equals(mask) {	1,552,983✔
59	arch = &s.archetypes[i]	517,587✔
60	break	517,587✔
61	}
62	}
63	if arch == nil {	517,879✔
64	arch = s.createArchetype(mask)	146✔
65	}	146✔
66	allRelation := appendNew(oldTable.relationIDs, relations...)	517,733✔
67	table, ok := arch.GetTable(s, allRelation)	517,733✔
68	if !ok {	517,904✔
69	table = s.createTable(arch, allRelation)	171✔
70	}	171✔
71	return table	517,733✔
72	}
73
74	func (s *storage) AddComponent(id uint8) {	486✔
75	if len(s.components) != int(id) {	486✔
76	panic("components can only be added to a storage sequentially")	×
77	}
78	s.components = append(s.components, componentStorage{columns: make([]*column, len(s.tables))})	486✔
79	}
80
81	// RemoveEntity removes the given entity from the world.
82	func (s *storage) RemoveEntity(entity Entity) {	516,114✔
83	if !s.entityPool.Alive(entity) {	516,114✔
84	panic("can't remove a dead entity")	×
85	}
86	index := &s.entities[entity.id]	516,114✔
87	table := &s.tables[index.table]	516,114✔
88		516,114✔
89	swapped := table.Remove(index.row)	516,114✔
90		516,114✔
91	s.entityPool.Recycle(entity)	516,114✔
92		516,114✔
93	if swapped {	1,030,998✔
94	swapEntity := table.GetEntity(uintptr(index.row))	514,884✔
95	s.entities[swapEntity.id].row = index.row	514,884✔
96	}	514,884✔
97	index.table = maxTableID	516,114✔
98		516,114✔
99	if s.isTarget[entity.id] {	516,116✔
100	s.cleanupArchetypes(entity)	2✔
101	s.isTarget[entity.id] = false	2✔
102	}	2✔
103	}
104
105	func (s *storage) Reset() {	1✔
106	s.entities = s.entities[:reservedEntities]	1✔
107	s.entityPool.Reset()	1✔
108	s.isTarget = s.isTarget[:reservedEntities]	1✔
109		1✔
110	for i := range s.archetypes {	5✔
111	s.archetypes[i].Reset(s)	4✔
112	}	4✔
113	}
114
115	func (s *storage) get(entity Entity, component ID) unsafe.Pointer {	5✔
116	if !s.entityPool.Alive(entity) {	6✔
117	panic("can't get component of a dead entity")	1✔
118	}
119	return s.getUnchecked(entity, component)	4✔
120	}
121
122	func (s *storage) getUnchecked(entity Entity, component ID) unsafe.Pointer {	5✔
123	s.checkHasComponent(entity, component)	5✔
124	index := s.entities[entity.id]	5✔
125	return s.tables[index.table].Get(component, uintptr(index.row))	5✔
126	}	5✔
127
128	func (s *storage) has(entity Entity, component ID) bool {	17✔
129	if !s.entityPool.Alive(entity) {	18✔
130	panic("can't get component of a dead entity")	1✔
131	}
132	return s.hasUnchecked(entity, component)	16✔
133	}
134
135	func (s *storage) hasUnchecked(entity Entity, component ID) bool {	18✔
136	s.checkHasComponent(entity, component)	18✔
137	index := s.entities[entity.id]	18✔
138	return s.tables[index.table].Has(component)	18✔
139	}	18✔
140
141	func (s *storage) getRelation(entity Entity, comp ID) Entity {	129✔
142	if !s.entityPool.Alive(entity) {	129✔
143	panic("can't get relation for a dead entity")	×
144	}
145	return s.getRelationUnchecked(entity, comp)	129✔
146	}
147
148	func (s *storage) getRelationUnchecked(entity Entity, comp ID) Entity {	133✔
149	s.checkHasComponent(entity, comp)	133✔
150	return s.tables[s.entities[entity.id].table].GetRelation(comp)	133✔
151	}	133✔
152
153	func (s *storage) registerTargets(relations []RelationID) {	517,776✔
154	for _, rel := range relations {	518,252✔
155	s.isTarget[rel.target.id] = true	476✔
156	}	476✔
157	}
158
159	func (s *storage) createEntity(table tableID) (Entity, uint32) {	517,403✔
160	entity := s.entityPool.Get()	517,403✔
161		517,403✔
162	idx := s.tables[table].Add(entity)	517,403✔
163	len := len(s.entities)	517,403✔
164	if int(entity.id) == len {	521,801✔
165	s.entities = append(s.entities, entityIndex{table: table, row: idx})	4,398✔
166	s.isTarget = append(s.isTarget, false)	4,398✔
167	} else {	517,403✔
168	s.entities[entity.id] = entityIndex{table: table, row: idx}	513,005✔
169	}	513,005✔
170	return entity, idx	517,403✔
171	}
172
173	func (s storage) createEntities(table table, count int) {	16✔
174	startIdx := table.Len()	16✔
175	table.Alloc(uint32(count))	16✔
176		16✔
177	len := len(s.entities)	16✔
178	for i := range count {	400✔
179	index := uint32(startIdx + i)	384✔
180	entity := s.entityPool.Get()	384✔
181	table.SetEntity(index, entity)	384✔
182		384✔
183	if int(entity.id) == len {	768✔
184	s.entities = append(s.entities, entityIndex{table: table.id, row: index})	384✔
185	s.isTarget = append(s.isTarget, false)	384✔
186	len++	384✔
187	} else {	384✔
188	s.entities[entity.id] = entityIndex{table: table.id, row: index}	×
189	}	×
190	}
191	}
192
193	func (s storage) createArchetype(mask Mask) *archetype {	146✔
194	comps := mask.toTypes(&s.registry.registry)	146✔
195	index := len(s.archetypes)	146✔
196	s.archetypes = append(s.archetypes, newArchetype(archetypeID(index), mask, comps, nil, &s.registry))	146✔
197	archetype := &s.archetypes[index]	146✔
198	if archetype.HasRelations() {	174✔
199	s.relationArchetypes = append(s.relationArchetypes, archetype.id)	28✔
200	}	28✔
201	return archetype	146✔
202	}
203
204	func (s storage) createTable(archetype archetype, relations []RelationID) *table {	185✔
205	targets := make([]Entity, len(archetype.components))	185✔
206	numRelations := uint8(0)	185✔
207	for _, rel := range relations {	260✔
208	idx := archetype.componentsMap[rel.component.id]	75✔
209	targets[idx] = rel.target	75✔
210	numRelations++	75✔
211	}	75✔
212	if numRelations != archetype.numRelations {	185✔
213	panic("relations must be fully specified")	×
214	}
215
216	var newTableID tableID	185✔
217	if id, ok := archetype.GetFreeTable(); ok {	186✔
218	newTableID = id	1✔
219	s.tables[newTableID].recycle(targets, relations)	1✔
220	} else {	185✔
221	newTableID = tableID(len(s.tables))	184✔
222	s.tables = append(s.tables, newTable(	184✔
223	newTableID, archetype.id, s.initialCapacity, &s.registry,	184✔
224	archetype.components, archetype.componentsMap,	184✔
225	archetype.isRelation, targets, relations))	184✔
226	}	184✔
227	archetype.AddTable(&s.tables[newTableID])	185✔
228		185✔
229	table := &s.tables[newTableID]	185✔
230	for i := range s.components {	1,009✔
231	id := ID{id: uint8(i)}	824✔
232	comps := &s.components[i]	824✔
233	if archetype.mask.Get(id) {	1,454✔
234	comps.columns = append(comps.columns, table.GetColumn(id))	630✔
235	} else {	824✔
236	comps.columns = append(comps.columns, nil)	194✔
237	}	194✔
238	}
239	return table	185✔
240	}
241
242	func (s storage) getExchangeMask(mask Mask, add []ID, rem []ID) {	646✔
243	for _, comp := range rem {	1,636✔
244	if !mask.Get(comp) {	990✔
245	panic(fmt.Sprintf("entity does not have a component of type %v, can't remove", s.registry.Types[comp.id]))	×
246	}
247	mask.Set(comp, false)	990✔
248	}
249	for _, comp := range add {	1,394✔
250	if mask.Get(comp) {	748✔
251	panic(fmt.Sprintf("entity already has component of type %v, can't add", s.registry.Types[comp.id]))	×
252	}
253	mask.Set(comp, true)	748✔
254	}
255	}
256
257	// Removes empty archetypes that have a target relation to the given entity.
258	func (s *storage) cleanupArchetypes(target Entity) {	2✔
259	newRelations := []RelationID{}	2✔
260	for _, arch := range s.relationArchetypes {	4✔
261	archetype := &s.archetypes[arch]	2✔
262	for _, t := range archetype.tables {	6✔
263	table := &s.tables[t]	4✔
264		4✔
265	foundTarget := false	4✔
266	for _, rel := range table.relationIDs {	8✔
267	if rel.target.id == target.id {	6✔
268	newRelations = append(newRelations, RelationID{component: rel.component, target: Entity{}})	2✔
269	foundTarget = true	2✔
270	}	2✔
271	}
272	if !foundTarget {	6✔
273	continue	2✔
274	}
275
276	allRelations := s.getExchangeTargetsUnchecked(table, newRelations)	2✔
277	newTable, ok := archetype.GetTable(s, allRelations)	2✔
278	if !ok {	4✔
279	newTable = s.createTable(archetype, newRelations)	2✔
280	}	2✔
281	s.moveEntities(table, newTable)	2✔
282	archetype.FreeTable(table.id)	2✔
283		2✔
284	newRelations = newRelations[:0]	2✔
285	}
286	archetype.RemoveTarget(target)	2✔
287	}
288	}
289
290	// moveEntities moves all entities from src to dst.
291	func (s storage) moveEntities(src, dst table) {	2✔
292	oldLen := dst.Len()	2✔
293	dst.AddAll(src)	2✔
294		2✔
295	newLen := dst.Len()	2✔
296	newTable := dst.id	2✔
297	for i := oldLen; i < newLen; i++ {	34✔
298	entity := dst.GetEntity(uintptr(i))	32✔
299	s.entities[entity.id] = entityIndex{table: newTable, row: uint32(i)}	32✔
300	}	32✔
301	src.Reset()	2✔
302	}
303
304	func (s storage) getExchangeTargetsUnchecked(oldTable table, relations []RelationID) []RelationID {	2✔
305	targets := make([]Entity, len(oldTable.columns))	2✔
306	for i := range oldTable.columns {	6✔
307	targets[i] = oldTable.columns[i].target	4✔
308	}	4✔
309	for _, rel := range relations {	4✔
310	index := oldTable.components[rel.component.id]	2✔
311	if rel.target == targets[index] {	2✔
312	continue	×
313	}
314	targets[index] = rel.target	2✔
315	}
316
317	result := make([]RelationID, 0, len(oldTable.relationIDs))	2✔
318	for i, e := range targets {	6✔
319	if !oldTable.columns[i].isRelation {	6✔
320	continue	2✔
321	}
322	id := oldTable.ids[i]	2✔
323	result = append(result, RelationID{component: id, target: e})	2✔
324	}
325
326	return result	2✔
327	}
328
329	func (s storage) getExchangeTargets(oldTable table, relations []RelationID) ([]RelationID, bool) {	43✔
330	changed := false	43✔
331	targets := make([]Entity, len(oldTable.columns))	43✔
332	for i := range oldTable.columns {	149✔
333	targets[i] = oldTable.columns[i].target	106✔
334	}	106✔
335	for _, rel := range relations {	87✔
336	if !rel.target.IsZero() && !s.entityPool.Alive(rel.target) {	44✔
337	panic("can't make a dead entity a relation target")	×
338	}
339	index := oldTable.components[rel.component.id]	44✔
340	if !oldTable.columns[index].isRelation {	44✔
341	panic(fmt.Sprintf("component %d is not a relation component", rel.component.id))	×
342	}
343	if rel.target == targets[index] {	44✔
344	continue	×
345	}
346	targets[index] = rel.target	44✔
347	changed = true	44✔
348	}
349	if !changed {	43✔
350	return nil, false	×
351	}	×
352
353	result := make([]RelationID, 0, len(oldTable.relationIDs))	43✔
354	for i, e := range targets {	149✔
355	if !oldTable.columns[i].isRelation {	167✔
356	continue	61✔
357	}
358	id := oldTable.ids[i]	45✔
359	result = append(result, RelationID{component: id, target: e})	45✔
360	}
361
362	return result, true	43✔
363	}

mlange-42 / ark / 13608425362

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous