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chunk/mgr: calculate index belongs to chunk namespace

pull/10/head
EmaMaker 2023-10-03 22:30:42 +02:00
parent c6d00c4200
commit 490f207e39
4 changed files with 33 additions and 26 deletions
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7
include/chunk.hpp
View File

@ -20,9 +20,16 @@
#define CHUNK_VOLUME (CHUNK_SIZE * CHUNK_SIZE * CHUNK_SIZE)
#define CHUNK_MAX_INDEX (CHUNK_VOLUME - 1)
// int32_t is fine, since i'm limiting the coordinate to only use up to ten bits (1023). There's actually two spare bits
typedef int32_t chunk_index_t;
typedef int16_t chunk_intcoord_t;
namespace Chunk
{
chunk_index_t calculateIndex(chunk_intcoord_t i, chunk_intcoord_t j, chunk_intcoord_t k);
chunk_index_t calculateIndex(glm::vec3 pos);
constexpr uint8_t CHUNK_STATE_GENERATED = 1;
constexpr uint8_t CHUNK_STATE_MESHED = 2;
constexpr uint8_t CHUNK_STATE_MESH_LOADED = 4;

4
include/chunkmanager.hpp
View File

@ -17,9 +17,6 @@
#define MESHING_PRIORITY_PLAYER_EDIT 10
#define GENERATION_PRIORITY_NORMAL 0
typedef int16_t chunk_intcoord_t;
typedef int32_t chunk_index_t;
namespace chunkmanager
{
typedef oneapi::tbb::concurrent_hash_map<chunk_index_t, Chunk::Chunk*> ChunkTable;
@ -34,7 +31,6 @@ namespace chunkmanager
void init();
void blockpick(bool place);
chunk_index_t calculateIndex(chunk_intcoord_t i, chunk_intcoord_t j, chunk_intcoord_t k);
void stop();
void destroy();

9
src/chunk.cpp
View File

@ -15,6 +15,15 @@ namespace Chunk
return utils::coord3DTo1D(x, y, z, CHUNK_SIZE, CHUNK_SIZE, CHUNK_SIZE);
}
chunk_index_t calculateIndex(glm::vec3 pos){
return calculateIndex(static_cast<chunk_intcoord_t>(pos.x), static_cast<chunk_intcoord_t>(pos.y),
static_cast<chunk_intcoord_t>(pos.z));
}
chunk_index_t calculateIndex(chunk_intcoord_t i, chunk_intcoord_t j, chunk_intcoord_t k){
return i | (j << 10) | (k << 20);
}
Chunk::Chunk(glm::vec3 pos)
{
this->position = pos;

39
src/chunkmanager.cpp
View File

@ -130,7 +130,7 @@ namespace chunkmanager
const chunk_intcoord_t z = chunks_indices[i][2] + chunkZ;
if(x < 0 || y < 0 || z < 0 || x > 1023 || y > 1023 || z > 1023) continue;
const chunk_index_t index = calculateIndex(x, y, z);
const chunk_index_t index = Chunk::calculateIndex(x, y, z);
ChunkTable::accessor a, a1, a2, b1, b2, c1, c2;
if(!chunks.find(a, index)) chunks.emplace(a, std::make_pair(index, new Chunk::Chunk(glm::vec3(x,y,z))));
@ -139,17 +139,17 @@ namespace chunkmanager
chunks_to_generate_queue.push(std::make_pair(a->second, GENERATION_PRIORITY_NORMAL));
}else if(! (a->second->getState(Chunk::CHUNK_STATE_MESHED))){
if(
(x + 1 > 1023 || (chunks.find(a1, calculateIndex(x+1, y, z)) &&
(x + 1 > 1023 || (chunks.find(a1, Chunk::calculateIndex(x+1, y, z)) &&
a1->second->getState(Chunk::CHUNK_STATE_GENERATED))) &&
(x - 1 < 0|| (chunks.find(a1, calculateIndex(x-1, y, z)) &&
(x - 1 < 0|| (chunks.find(a1, Chunk::calculateIndex(x-1, y, z)) &&
a1->second->getState(Chunk::CHUNK_STATE_GENERATED))) &&
(y + 1 > 1023 || (chunks.find(a1, calculateIndex(x, y+1, z)) &&
(y + 1 > 1023 || (chunks.find(a1, Chunk::calculateIndex(x, y+1, z)) &&
a1->second->getState(Chunk::CHUNK_STATE_GENERATED))) &&
(y - 1 < 0|| (chunks.find(a1, calculateIndex(x, y-1, z)) &&
(y - 1 < 0|| (chunks.find(a1, Chunk::calculateIndex(x, y-1, z)) &&
a1->second->getState(Chunk::CHUNK_STATE_GENERATED))) &&
(z + 1 > 1023 || (chunks.find(a1, calculateIndex(x, y, z+1)) &&
(z + 1 > 1023 || (chunks.find(a1, Chunk::calculateIndex(x, y, z+1)) &&
a1->second->getState(Chunk::CHUNK_STATE_GENERATED))) &&
(z - 1 < 0|| (chunks.find(a1, calculateIndex(x, y, z-1)) &&
(z - 1 < 0|| (chunks.find(a1, Chunk::calculateIndex(x, y, z-1)) &&
a1->second->getState(Chunk::CHUNK_STATE_GENERATED)))
)
chunks_to_mesh_queue.push(std::make_pair(a->second, MESHING_PRIORITY_NORMAL));
@ -168,7 +168,7 @@ namespace chunkmanager
chunk_intcoord_t y = static_cast<chunk_intcoord_t>(n->getPosition().y);
chunk_intcoord_t z = static_cast<chunk_intcoord_t>(n->getPosition().z);
if(x > 1023 || y > 1023 || z > 1023) continue;
const uint32_t index = calculateIndex(x, y, z);
const uint32_t index = Chunk::calculateIndex(x, y, z);
chunks.erase(index);
//delete n;
@ -177,11 +177,6 @@ namespace chunkmanager
}
}
// uint32_t is fine, since i'm limiting the coordinate to only use up to ten bits (1023). There's actually two spare bits
chunk_index_t calculateIndex(chunk_intcoord_t i, chunk_intcoord_t j, chunk_intcoord_t k){
return i | (j << 10) | (k << 20);
}
oneapi::tbb::concurrent_queue<Chunk::Chunk*>& getDeleteVector(){ return chunks_todelete; }
std::array<std::array<chunk_intcoord_t, 3>, chunks_volume>& getChunksIndices(){ return chunks_indices; }
@ -223,7 +218,7 @@ namespace chunkmanager
if(px < 0 || py < 0 || pz < 0 || px >= 1024 || py >= 1024 || pz >= 1024) continue;
ChunkTable::accessor a;
if(!chunks.find(a, calculateIndex(px, py, pz))) continue;
if(!chunks.find(a, Chunk::calculateIndex(px, py, pz))) continue;
Chunk::Chunk* c = a->second;
if(!c->getState(Chunk::CHUNK_STATE_GENERATED) || c->getState(Chunk::CHUNK_STATE_EMPTY)) continue;
@ -252,7 +247,7 @@ namespace chunkmanager
// exit early if the position is invalid or the chunk does not exist
if(px1 < 0 || py1 < 0 || pz1 < 0 || px1 >= 1024 || py1 >= 1024 || pz1 >= 1024) return;
ChunkTable::accessor a1;
if(!chunks.find(a1, calculateIndex(px1, py1, pz1))) return;
if(!chunks.find(a1, Chunk::calculateIndex(px1, py1, pz1))) return;
Chunk::Chunk* c1 = a1->second;
// place the new block (only stone for now)
c1->setBlock((Block)block_to_place, bx1, by1, bz1);
@ -274,17 +269,17 @@ namespace chunkmanager
// When necessary, also mesh nearby chunks
ChunkTable::accessor a1, a2, b1, b2, c1, c2;
if(bx == 0 && px - 1 >= 0 && chunks.find(a1, calculateIndex(px - 1, py, pz)))
if(bx == 0 && px - 1 >= 0 && chunks.find(a1, Chunk::calculateIndex(px - 1, py, pz)))
chunkmesher::mesh(a1->second);
if(by == 0 && py - 1 >= 0 && chunks.find(b1, calculateIndex(px, py - 1, pz)))
if(by == 0 && py - 1 >= 0 && chunks.find(b1, Chunk::calculateIndex(px, py - 1, pz)))
chunkmesher::mesh(b1->second);
if(bz == 0 && pz - 1 >= 0 && chunks.find(c1, calculateIndex(px, py, pz - 1)))
if(bz == 0 && pz - 1 >= 0 && chunks.find(c1, Chunk::calculateIndex(px, py, pz - 1)))
chunkmesher::mesh(c1->second);
if(bx == CHUNK_SIZE - 1 && px +1 < 1024 && chunks.find(a2, calculateIndex(px +1, py, pz)))
if(bx == CHUNK_SIZE - 1 && px +1 < 1024 && chunks.find(a2, Chunk::calculateIndex(px +1, py, pz)))
chunkmesher::mesh(a2->second);
if(by == CHUNK_SIZE - 1 && py +1 < 1024 && chunks.find(b2, calculateIndex(px, py +1, pz)))
if(by == CHUNK_SIZE - 1 && py +1 < 1024 && chunks.find(b2, Chunk::calculateIndex(px, py +1, pz)))
chunkmesher::mesh(b2->second);
if(bz == CHUNK_SIZE - 1 && pz +1 < 1024 && chunks.find(c2, calculateIndex(px, py, pz +1)))
if(bz == CHUNK_SIZE - 1 && pz +1 < 1024 && chunks.find(c2, Chunk::calculateIndex(px, py, pz +1)))
chunkmesher::mesh(c2->second);
debug::window::set_parameter("block_last_action", place);
@ -310,7 +305,7 @@ namespace chunkmanager
//std::cout << "Block at " << x << ", " << y << ", " << z << " is in chunk " << cx << "," << cy << "," << cz << "\n";
ChunkTable::accessor a;
if(!chunks.find(a, calculateIndex(cx, cy, cz))) return Block::NULLBLK;
if(!chunks.find(a, Chunk::calculateIndex(cx, cy, cz))) return Block::NULLBLK;
else {
int bx = x % CHUNK_SIZE;
int by = y % CHUNK_SIZE;