metaforce/Runtime/Collision/COBBTree.hpp

93 lines
3.1 KiB
C++

#pragma once
#include <memory>
#include <vector>
#include "Runtime/RetroTypes.hpp"
#include "Runtime/Collision/CCollisionEdge.hpp"
#include "Runtime/Collision/CCollisionSurface.hpp"
#include <zeus/COBBox.hpp>
#include <zeus/CVector3f.hpp>
namespace urde {
class CCollidableOBBTreeGroupContainer;
class COBBTree {
public:
struct SIndexData {
std::vector<u32> x0_materials;
std::vector<u8> x10_vertMaterials;
std::vector<u8> x20_edgeMaterials;
std::vector<u8> x30_surfaceMaterials;
std::vector<CCollisionEdge> x40_edges;
std::vector<u16> x50_surfaceIndices;
std::vector<zeus::CVector3f> x60_vertices;
SIndexData() = default;
explicit SIndexData(CInputStream&);
};
class CLeafData {
std::vector<u16> x0_surface;
public:
CLeafData() = default;
explicit CLeafData(std::vector<u16>&& surface);
explicit CLeafData(CInputStream&);
const std::vector<u16>& GetSurfaceVector() const;
size_t GetMemoryUsage() const;
};
class CNode {
zeus::COBBox x0_obb;
bool x3c_isLeaf = false;
std::unique_ptr<CNode> x40_left;
std::unique_ptr<CNode> x44_right;
std::unique_ptr<CLeafData> x48_leaf;
bool x4c_hit = false;
public:
CNode() = default;
CNode(const zeus::CTransform&, const zeus::CVector3f&, std::unique_ptr<CNode>&&, std::unique_ptr<CNode>&&,
std::unique_ptr<CLeafData>&&);
explicit CNode(CInputStream&);
bool WasHit() const { return x4c_hit; }
void SetHit(bool h) { x4c_hit = h; }
const CNode& GetLeft() const { return *x40_left; }
const CNode& GetRight() const { return *x44_right; }
const CLeafData& GetLeafData() const { return *x48_leaf; }
const zeus::COBBox& GetOBB() const { return x0_obb; }
size_t GetMemoryUsage() const;
bool IsLeaf() const { return x3c_isLeaf; }
};
private:
u32 x0_magic = 0;
u32 x4_version = 0;
u32 x8_memsize = 0;
/* CSimpleAllocator xc_ We're not using this but lets keep track*/
SIndexData x18_indexData;
std::unique_ptr<CNode> x88_root;
public:
COBBTree() = default;
explicit COBBTree(CInputStream&);
static std::unique_ptr<COBBTree> BuildOrientedBoundingBoxTree(const zeus::CVector3f&,
const zeus::CVector3f&);
CCollisionSurface GetSurface(u16 idx) const;
const u16* GetTriangleEdgeIndices(u16 idx) const { return &x18_indexData.x50_surfaceIndices[idx * 3]; }
void GetTriangleVertexIndices(u16 idx, u16 indicesOut[3]) const;
const CCollisionEdge& GetEdge(int idx) const { return x18_indexData.x40_edges[idx]; }
const zeus::CVector3f& GetVert(int idx) const { return x18_indexData.x60_vertices[idx]; }
u32 GetVertMaterial(u16 idx) const { return x18_indexData.x0_materials[x18_indexData.x10_vertMaterials[idx]]; }
u32 GetEdgeMaterial(u16 idx) const { return x18_indexData.x0_materials[x18_indexData.x20_edgeMaterials[idx]]; }
CCollisionSurface GetTransformedSurface(u16 idx, const zeus::CTransform& xf) const;
zeus::CAABox CalculateLocalAABox() const;
zeus::CAABox CalculateAABox(const zeus::CTransform&) const;
const CNode& GetRoot() const { return *x88_root; }
};
} // namespace urde