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https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2024-11-21 13:07:31 +00:00
Use vector instead of forward_list for dpGrid
also swap contains in for find != end on an associative container since we are in c++20 now :)
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050184c558
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@ -76,7 +76,7 @@ void dpEntity::CheckCollision(dpEntity* other) {
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return;
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}
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bool wasFound = (m_CurrentlyCollidingObjects.find(other->GetObjectID()) != m_CurrentlyCollidingObjects.end());
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bool wasFound = m_CurrentlyCollidingObjects.contains(other->GetObjectID());
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bool isColliding = m_CollisionShape->IsColliding(other->GetShape());
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@ -8,24 +8,14 @@ dpGrid::dpGrid(int numCells, int cellSize) {
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CELL_SIZE = cellSize;
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m_DeleteGrid = true;
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//fill x
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for (int i = 0; i < NUM_CELLS; i++) {
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m_Cells.push_back(std::vector<std::forward_list<dpEntity*>>());
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}
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//fill z
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for (int i = 0; i < NUM_CELLS; i++) {
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for (int i = 0; i < NUM_CELLS; i++) {
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m_Cells[i].push_back(std::forward_list<dpEntity*>());
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}
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}
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m_Cells.resize(NUM_CELLS, std::vector<std::vector<dpEntity*>>(NUM_CELLS));
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}
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dpGrid::~dpGrid() {
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if (!this->m_DeleteGrid) return;
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for (auto& x : m_Cells) { //x
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for (auto& y : x) { //y
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for (auto en : y) {
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for (auto& z : x) { //y
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for (auto en : z) {
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if (!en) continue;
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delete en;
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en = nullptr;
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@ -39,13 +29,12 @@ void dpGrid::Add(dpEntity* entity) {
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int cellX = (int)std::round(entity->m_Position.x) / dpGrid::CELL_SIZE + NUM_CELLS / 2;
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int cellZ = (int)std::round(entity->m_Position.z) / dpGrid::CELL_SIZE + NUM_CELLS / 2;
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if (cellX < 0) cellX = 0;
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if (cellZ < 0) cellZ = 0;
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if (cellX >= NUM_CELLS) cellX = NUM_CELLS - 1;
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if (cellZ >= NUM_CELLS) cellZ = NUM_CELLS - 1;
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// Clamp values to the range [0, NUM_CELLS - 1]
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std::clamp(cellX, 0, NUM_CELLS - 1);
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std::clamp(cellZ, 0, NUM_CELLS - 1);
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//Add to cell:
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m_Cells[cellX][cellZ].push_front(entity);
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m_Cells[cellX][cellZ].push_back(entity);
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//To verify that the object isn't gargantuan:
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if (entity->GetScale() >= CELL_SIZE * 2 || entity->GetIsGargantuan())
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@ -59,23 +48,27 @@ void dpGrid::Move(dpEntity* entity, float x, float z) {
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int cellX = (int)std::round(x) / dpGrid::CELL_SIZE + NUM_CELLS / 2;
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int cellZ = (int)std::round(z) / dpGrid::CELL_SIZE + NUM_CELLS / 2;
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if (cellX < 0) cellX = 0;
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if (cellZ < 0) cellZ = 0;
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if (cellX >= NUM_CELLS) cellX = NUM_CELLS - 1;
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if (cellZ >= NUM_CELLS) cellZ = NUM_CELLS - 1;
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// Clamp values to the range [0, NUM_CELLS - 1]
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std::clamp(cellX, 0, NUM_CELLS - 1);
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std::clamp(cellZ, 0, NUM_CELLS - 1);
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if (oldCellX < 0) oldCellX = 0;
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if (oldCellZ < 0) oldCellZ = 0;
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if (oldCellX >= NUM_CELLS) oldCellX = NUM_CELLS - 1;
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if (oldCellZ >= NUM_CELLS) oldCellZ = NUM_CELLS - 1;
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std::clamp(oldCellX, 0, NUM_CELLS - 1);
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std::clamp(oldCellZ, 0, NUM_CELLS - 1);
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if (oldCellX == cellX && oldCellZ == cellZ) return;
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//Remove from perv cell:
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m_Cells[oldCellX][oldCellZ].remove(entity);
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//Remove from prev cell:
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auto& cell = m_Cells[oldCellX][oldCellZ];
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// For speed, find the single match and swap it with the last element, then pop_back.
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auto toRemove = std::find(cell.begin(), cell.end(), entity);
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if (toRemove != cell.end()) {
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*toRemove = cell.back();
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cell.pop_back();
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}
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//Add to the new cell
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m_Cells[cellX][cellZ].push_front(entity);
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m_Cells[cellX][cellZ].push_back(entity);
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}
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void dpGrid::Delete(dpEntity* entity) {
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@ -83,15 +76,18 @@ void dpGrid::Delete(dpEntity* entity) {
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int oldCellX = (int)std::round(entity->m_Position.x) / dpGrid::CELL_SIZE + NUM_CELLS / 2;
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int oldCellZ = (int)std::round(entity->m_Position.z) / dpGrid::CELL_SIZE + NUM_CELLS / 2;
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if (oldCellX < 0) oldCellX = 0;
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if (oldCellZ < 0) oldCellZ = 0;
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if (oldCellX >= NUM_CELLS) oldCellX = NUM_CELLS - 1;
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if (oldCellZ >= NUM_CELLS) oldCellZ = NUM_CELLS - 1;
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// Clamp values to the range [0, NUM_CELLS - 1]
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std::clamp(oldCellX, 0, NUM_CELLS - 1);
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std::clamp(oldCellZ, 0, NUM_CELLS - 1);
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m_Cells[oldCellX][oldCellZ].remove(entity);
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auto& cell = m_Cells[oldCellX][oldCellZ];
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auto toRemove = std::find(cell.begin(), cell.end(), entity);
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if (toRemove != cell.end()) {
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*toRemove = cell.back();
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cell.pop_back();
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}
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if (m_GargantuanObjects.find(entity->m_ObjectID) != m_GargantuanObjects.end())
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m_GargantuanObjects.erase(entity->m_ObjectID);
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m_GargantuanObjects.erase(entity->m_ObjectID);
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if (entity) delete entity;
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entity = nullptr;
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@ -100,8 +96,8 @@ void dpGrid::Delete(dpEntity* entity) {
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void dpGrid::Update(float deltaTime) {
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//Pre-update:
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for (auto& x : m_Cells) { //x
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for (auto& y : x) { //y
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for (auto en : y) {
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for (auto& z : x) { //y
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for (auto en : z) {
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if (!en) continue;
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en->PreUpdate();
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}
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@ -110,8 +106,8 @@ void dpGrid::Update(float deltaTime) {
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//Actual collision detection update:
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for (int x = 0; x < NUM_CELLS; x++) {
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for (int y = 0; y < NUM_CELLS; y++) {
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HandleCell(x, y, deltaTime);
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for (int z = 0; z < NUM_CELLS; z++) {
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HandleCell(x, z, deltaTime);
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}
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}
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}
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@ -157,7 +153,7 @@ void dpGrid::HandleCell(int x, int z, float deltaTime) {
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HandleEntity(en, other);
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}
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for (auto other : m_GargantuanObjects)
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HandleEntity(en, other.second);
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for (auto& [id, entity] : m_GargantuanObjects)
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HandleEntity(en, entity);
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}
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}
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@ -1,8 +1,7 @@
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#pragma once
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#include <vector>
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#include <list>
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#include <forward_list>
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#include <map>
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#include <vector>
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#include "dCommonVars.h"
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class dpEntity;
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@ -30,7 +29,8 @@ public:
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*/
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void SetDeleteGrid(bool value) { this->m_DeleteGrid = value; };
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std::vector<std::vector<std::forward_list<dpEntity*>>> GetCells() { return this->m_Cells; };
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// Intentional copy since this is only used when we delete this class to re-create it.
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std::vector<std::vector<std::vector<dpEntity*>>> GetCells() { return this->m_Cells; };
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private:
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void HandleEntity(dpEntity* entity, dpEntity* other);
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@ -38,7 +38,7 @@ private:
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private:
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//cells on X, cells on Y for that X, then another vector that contains the entities within that cell.
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std::vector<std::vector<std::forward_list<dpEntity*>>> m_Cells;
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std::vector<std::vector<std::vector<dpEntity*>>> m_Cells;
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std::map<LWOOBJID, dpEntity*> m_GargantuanObjects;
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bool m_DeleteGrid = true;
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};
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