summaryrefslogtreecommitdiffstats
path: root/src/World.cpp
blob: 44816e77f4c5557664c96e33c6fa8e0c579327de (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
#include "World.hpp"
#include "Event.hpp"

void World::ParseChunkData(std::shared_ptr<PacketChunkData> packet) {
	StreamBuffer chunkData(packet->Data.data(), packet->Data.size());    
	std::bitset<16> bitmask(packet->PrimaryBitMask);
	for (int i = 0; i < 16; i++) {
		if (bitmask[i]) {
			Vector chunkPosition = Vector(packet->ChunkX, i, packet->ChunkZ);
			PackedSection section = ParseSection(&chunkData, chunkPosition);
            auto it = sections.find(chunkPosition);
            if (it == sections.end()) {
                sections.insert(std::make_pair(chunkPosition, section));
            }
            else {
                using std::swap;
                swap(it->second, section);
            }
            EventAgregator::PushEvent(EventType::ChunkChanged, ChunkChangedData{ chunkPosition });

            /*parseMutex.lock();            
            toParse.push(section);
            parseMutex.unlock();*/
			/*section.Parse();
			sectionMutexes[chunkPosition].lock();
			auto it = sections.find(chunkPosition);
			if (it == sections.end()) {
				sections.insert(std::make_pair(chunkPosition, section));
			} else {
				using std::swap;
				swap(it->second, section);
			}
			sectionMutexes[chunkPosition].unlock();

            EventAgregator::PushEvent(EventType::ChunkChanged, ChunkChangedData{ chunkPosition });*/
		}
	}
}

PackedSection World::ParseSection(StreamInput *data, Vector position) {
	unsigned char bitsPerBlock = data->ReadUByte();
	int paletteLength = data->ReadVarInt();
	std::vector<unsigned short> palette;
	for (int i = 0; i < paletteLength; i++) {
		palette.push_back(data->ReadVarInt());
	}
	int dataArrayLength = data->ReadVarInt();
	auto dataArray = data->ReadByteArray(dataArrayLength * 8);
	auto blockLight = data->ReadByteArray(4096 / 2);
	std::vector<unsigned char> skyLight;
	if (dimension == 0)
		skyLight = data->ReadByteArray(4096 / 2);
	return PackedSection(position, dataArray.data(), dataArray.size(), blockLight.data(),
	               (skyLight.size() > 0 ? skyLight.data() : nullptr), bitsPerBlock, palette);
}
/*
void World::ParserFunc()
{
    LoopExecutionTimeController timer(std::chrono::milliseconds(32));
    while (isRunning) {
        parseMutex.lock();
        while (toParse.size() > 0) {
            Section section = toParse.front();
            toParse.pop();
            parseMutex.unlock();

            section.Parse();
            sectionMutexes[section.GetPosition()].lock();
            auto it = sections.find(section.GetPosition());
            if (it == sections.end()) {
                sections.insert(std::make_pair(section.GetPosition(), section));
            }
            else {
                using std::swap;
                swap(it->second, section);
            }
            sectionMutexes[section.GetPosition()].unlock();

            EventAgregator::PushEvent(EventType::ChunkChanged, ChunkChangedData{ section.GetPosition() });

            parseMutex.lock();
        }
        parseMutex.unlock();
        timer.Update();
    }
}
*/
World::~World() {
}

Block & World::GetBlock(Vector worldPosition)
{
    Vector sectionPos(std::floor(worldPosition.x / 16.0), std::floor(worldPosition.y / 16.0), std::floor(worldPosition.z / 16.0));
    auto sectionIt = sections.find(sectionPos);
    if (sectionIt != sections.end()) {
        Section section(sectionIt->second);
        auto result = cachedSections.insert(std::make_pair(sectionPos, section));
        sections.erase(sectionIt);
    }
    auto it = cachedSections.find(sectionPos);
    if (it == cachedSections.end()) {
        static Block fallbackBlock;
        return fallbackBlock;
    }
    Section& section = it->second;
    Block& block = section.GetBlock(worldPosition - sectionPos * 16);
    return block;
}

World::World() {
}

bool World::isPlayerCollides(double X, double Y, double Z) {
	Vector PlayerChunk(floor(X / 16.0), floor(Y / 16.0), floor(Z / 16.0));
	std::vector<Vector> closestSectionsCoordinates = {
			Vector(PlayerChunk.x, PlayerChunk.y, PlayerChunk.z),
			Vector(PlayerChunk.x + 1, PlayerChunk.y, PlayerChunk.z),
			Vector(PlayerChunk.x - 1, PlayerChunk.y, PlayerChunk.z),
			Vector(PlayerChunk.x, PlayerChunk.y + 1, PlayerChunk.z),
			Vector(PlayerChunk.x, PlayerChunk.y - 1, PlayerChunk.z),
			Vector(PlayerChunk.x, PlayerChunk.y, PlayerChunk.z + 1),
			Vector(PlayerChunk.x, PlayerChunk.y, PlayerChunk.z - 1),
	};
	std::vector<Vector> closestSections;
	for (auto &coord:closestSectionsCoordinates) {
        if (sections.find(coord) != sections.end())
            closestSections.push_back(coord);
        else if (cachedSections.find(coord) != cachedSections.end())
            closestSections.push_back(coord);
	}

	for (auto &it:closestSections) {

		const double PlayerWidth = 0.6;
		const double PlayerHeight = 1.82;
		const double PlayerLength = 0.6;

		AABB playerColl;
		playerColl.x = X - PlayerWidth / 2.0;
		playerColl.w = PlayerWidth;
		playerColl.y = Y;
		playerColl.h = PlayerHeight;
		playerColl.z = Z - PlayerLength / 2.0;
		playerColl.l = PlayerLength;

        const Section &section = this->GetSection(it);
		for (int x = 0; x < 16; x++) {
			for (int y = 0; y < 16; y++) {
				for (int z = 0; z < 16; z++) {
					Block block = section.GetBlock(Vector(x, y, z));
					if (block.id == 0 || block.id == 31)
						continue;
					AABB blockColl{(x + it.x * 16.0),
					               (y + it.y * 16.0),
					               (z + it.z * 16.0), 1, 1, 1};
					if (TestCollision(playerColl, blockColl))
						return true;
				}
			}
		}
	}
	return false;
}

std::vector<Vector> World::GetSectionsList() {
	std::vector<Vector> sectionsList;
	for (auto& it:sections) {
		sectionsList.push_back(it.first);
	}
    for (auto& it : cachedSections) {
        if (std::find(sectionsList.begin(), sectionsList.end(), it.first) == sectionsList.end())
            sectionsList.push_back(it.first);
    }
	return sectionsList;
}

const Section &World::GetSection(Vector sectionPos) {
    auto result = cachedSections.find(sectionPos);
    if (result == cachedSections.end()) {
        auto it = sections.find(sectionPos);
        if (it == sections.end())
            LOG(ERROR) << "BAD";
        Section section(it->second);
        auto result = cachedSections.insert(std::make_pair(sectionPos, section));
        return result.first->second;
    } else {
        return result->second;
    }
}

glm::vec3 World::Raycast(glm::vec3 position, glm::vec3 direction, float maxLength, float minPrecision) {
    return glm::vec3(position * direction / maxLength * minPrecision);
}

void World::UpdatePhysics(float delta)
{
    //delta /= 5;
    entitiesMutex.lock();
    for (auto& it : entities) {
        it.pos = it.pos + it.vel * delta;
    }
    entitiesMutex.unlock();
}
//Faces: 14 650 653
//Models: 937.641.792 Bytes x64
//Textures: 234.410.448 Bytes x16
//Colors: 175.807.836 Bytes x12

Entity & World::GetEntity(unsigned int EntityId)
{
    entitiesMutex.lock();
    for (auto& it : entities) {
        if (it.entityId == EntityId) {
            entitiesMutex.unlock();
            return it;
        }
    }
    entitiesMutex.unlock();
    static Entity fallback;
    return fallback;
}

std::vector<unsigned int> World::GetEntitiesList()
{
    entitiesMutex.lock();
    std::vector<unsigned int> ret;
    for (auto& it : entities) {
        ret.push_back(it.entityId);
    }
    entitiesMutex.unlock();
    return ret;
}

void World::AddEntity(Entity entity)
{
    entitiesMutex.lock();
    for (auto& it : entities) {
        if (it.entityId == entity.entityId) {
            LOG(ERROR) << "Adding already existing entity" << entity.entityId;
            return;
        }
    }
    entities.push_back(entity);
    entitiesMutex.unlock();
}

void World::DeleteEntity(unsigned int EntityId)
{
    entitiesMutex.lock();
    auto it = entities.begin();
    for (; it != entities.end(); ++it) {
        if (it->entityId == EntityId) {
            break;
        }
    }
    if (it != entities.end())
        entities.erase(it);
    entitiesMutex.unlock();
}

void World::ParseChunkData(std::shared_ptr<PacketBlockChange> packet) {
    Block& block = this->GetBlock(packet->Position);
    block = Block(packet->BlockId >> 4, packet->BlockId & 15);
    Vector sectionPos(std::floor(packet->Position.x / 16.0), std::floor(packet->Position.y / 16.0), std::floor(packet->Position.z / 16.0));
    EventAgregator::PushEvent(EventType::ChunkChanged, ChunkChangedData{ sectionPos });
}

void World::ParseChunkData(std::shared_ptr<PacketMultiBlockChange> packet) {
    std::vector<Vector> changedSections;
    for (auto& it : packet->Records) {
        int x = (it.HorizontalPosition >> 4 & 15) + (packet->ChunkX * 16);
        int y = it.YCoordinate;
        int z = (it.HorizontalPosition & 15) + (packet->ChunkZ * 16);
        Vector worldPos(x, y, z);
        Block& block = GetBlock(worldPos);
        block = Block(it.BlockId >> 4, it.BlockId & 15);

        Vector sectionPos(packet->ChunkX, std::floor(it.YCoordinate / 16.0), packet->ChunkZ);
        if (std::find(changedSections.begin(), changedSections.end(), sectionPos) == changedSections.end())
            changedSections.push_back(sectionPos);
    }
    for (auto& sectionPos: changedSections)
        EventAgregator::PushEvent(EventType::ChunkChanged, ChunkChangedData{ sectionPos });
}