DarkflameServer/dPhysics/dpGrid.h

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#pragma once
#include <map>
#include <vector>
#include "dCommonVars.h"
class dpEntity;
class dpGrid {
public:
//LU has a chunk size of 64x64, with each chunk unit being 3.2 ingame units.
int NUM_CELLS = 12; //Most worlds consist of 10 or 11 chunks, so I'm picking 12 to be safe.
int CELL_SIZE = 205; //64 * 3.2 = 204.8 rounded up
public:
dpGrid(int numCells, int cellSize);
~dpGrid();
void Add(dpEntity* entity);
void Move(dpEntity* entity, float x, float z);
void Delete(dpEntity* entity);
void Update(float deltaTime);
/**
* Sets the delete grid parameter to value. When false, the grid will not clean up memory.
*
* @param value Whether or not to delete entities on deletion of the grid.
*/
void SetDeleteGrid(bool value) { this->m_DeleteGrid = value; };
// Intentional copy since this is only used when we delete this class to re-create it.
std::vector<std::vector<std::vector<dpEntity*>>> GetCells() { return this->m_Cells; };
private:
void HandleEntity(dpEntity* entity, dpEntity* other);
void HandleCell(int x, int z, float deltaTime);
private:
//cells on X, cells on Y for that X, then another vector that contains the entities within that cell.
std::vector<std::vector<std::vector<dpEntity*>>> m_Cells;
std::map<LWOOBJID, dpEntity*> m_GargantuanObjects;
bool m_DeleteGrid = true;
};