metaforce/Runtime/Collision/CCollidableOBBTreeGroup.cpp

239 lines
11 KiB
C++

#include "Runtime/Collision/CCollidableOBBTreeGroup.hpp"
#include "Runtime/CToken.hpp"
#include "Runtime/Collision/CCollidableAABox.hpp"
#include "Runtime/Collision/CCollidableOBBTree.hpp"
#include "Runtime/Collision/CCollidableSphere.hpp"
#include "Runtime/Collision/CInternalRayCastStructure.hpp"
#include "Runtime/Collision/CollisionUtil.hpp"
namespace metaforce {
constexpr CCollisionPrimitive::Type sType(CCollidableOBBTreeGroup::SetStaticTableIndex, "CCollidableOBBTreeGroup");
CCollidableOBBTreeGroupContainer::CCollidableOBBTreeGroupContainer(CInputStream& in) {
const u32 treeCount = in.ReadLong();
x0_trees.reserve(treeCount);
for (u32 i = 0; i < treeCount; i++) {
auto tree = std::make_unique<COBBTree>(in);
x0_trees.push_back(std::move(tree));
}
x10_aabbs.reserve(x0_trees.size());
for (const std::unique_ptr<COBBTree>& tree : x0_trees) {
x10_aabbs.push_back(CCollidableOBBTree(tree.get(), CMaterialList()).CalculateLocalAABox());
x20_aabox.accumulateBounds(x10_aabbs.back());
}
}
CCollidableOBBTreeGroupContainer::CCollidableOBBTreeGroupContainer(const zeus::CVector3f& extent,
const zeus::CVector3f& center) {
x0_trees.push_back(COBBTree::BuildOrientedBoundingBoxTree(extent, center));
for (const std::unique_ptr<COBBTree>& tree : x0_trees) {
x10_aabbs.push_back(CCollidableOBBTree(tree.get(), CMaterialList()).CalculateLocalAABox());
x20_aabox.accumulateBounds(x10_aabbs.back());
}
}
CCollidableOBBTreeGroup::CCollidableOBBTreeGroup(const CCollidableOBBTreeGroupContainer* container,
const CMaterialList& matList)
: CCollisionPrimitive(matList), x10_container(container) {}
void CCollidableOBBTreeGroup::ResetTestStats() const { /* Remove me? */
}
u32 CCollidableOBBTreeGroup::GetTableIndex() const { return sTableIndex; }
zeus::CAABox CCollidableOBBTreeGroup::CalculateAABox(const zeus::CTransform& xf) const {
return x10_container->x20_aabox.getTransformedAABox(xf);
}
zeus::CAABox CCollidableOBBTreeGroup::CalculateLocalAABox() const { return x10_container->x20_aabox; }
FourCC CCollidableOBBTreeGroup::GetPrimType() const { return SBIG('OBTG'); }
CRayCastResult CCollidableOBBTreeGroup::CastRayInternal(const CInternalRayCastStructure& rayCast) const {
CRayCastResult ret;
zeus::CMRay xfRay = rayCast.GetRay().getInvUnscaledTransformRay(rayCast.GetTransform());
auto aabbIt = x10_container->x10_aabbs.cbegin();
float mag = rayCast.GetMaxTime();
for (const std::unique_ptr<COBBTree>& tree : x10_container->x0_trees) {
CCollidableOBBTree obbTree(tree.get(), GetMaterial());
float tMin = 0.f;
float tMax = 0.f;
if (CollisionUtil::RayAABoxIntersection(xfRay, *aabbIt++, tMin, tMax) != 0u) {
CInternalRayCastStructure localCast(xfRay.start, xfRay.dir, mag, zeus::CTransform(), rayCast.GetFilter());
CRayCastResult localResult = obbTree.CastRayInternal(localCast);
if (localResult.IsValid()) {
if (ret.IsInvalid() || localResult.GetT() < ret.GetT()) {
ret = localResult;
mag = localResult.GetT();
}
}
}
}
ret.Transform(rayCast.GetTransform());
return ret;
}
const CCollisionPrimitive::Type& CCollidableOBBTreeGroup::GetType() { return sType; }
void CCollidableOBBTreeGroup::SetStaticTableIndex(u32 index) { sTableIndex = index; }
bool CCollidableOBBTreeGroup::SphereCollide(const CInternalCollisionStructure& collision, CCollisionInfoList& list) {
bool ret = false;
const auto& p0 = static_cast<const CCollidableSphere&>(collision.GetLeft().GetPrim());
const auto& p1 = static_cast<const CCollidableOBBTreeGroup&>(collision.GetRight().GetPrim());
zeus::CSphere s0 = p0.Transform(collision.GetLeft().GetTransform());
zeus::COBBox obb1 = zeus::COBBox::FromAABox(p0.CalculateLocalAABox(), collision.GetRight().GetTransform().inverse() *
collision.GetLeft().GetTransform());
for (const std::unique_ptr<COBBTree>& tree : p1.x10_container->x0_trees) {
CCollidableOBBTree obbTree(tree.get(), p1.GetMaterial());
if (obbTree.SphereCollision(obbTree.x10_tree->GetRoot(), collision.GetRight().GetTransform(), s0, obb1,
p0.GetMaterial(), collision.GetLeft().GetFilter(), list)) {
ret = true;
}
}
return ret;
}
bool CCollidableOBBTreeGroup::SphereCollideBoolean(const CInternalCollisionStructure& collision) {
const auto& p0 = static_cast<const CCollidableSphere&>(collision.GetLeft().GetPrim());
const auto& p1 = static_cast<const CCollidableOBBTreeGroup&>(collision.GetRight().GetPrim());
zeus::CSphere s0 = p0.Transform(collision.GetLeft().GetTransform());
zeus::COBBox obb1 = zeus::COBBox::FromAABox(p0.CalculateLocalAABox(), collision.GetRight().GetTransform().inverse() *
collision.GetLeft().GetTransform());
for (const std::unique_ptr<COBBTree>& tree : p1.x10_container->x0_trees) {
CCollidableOBBTree obbTree(tree.get(), p1.GetMaterial());
if (obbTree.SphereCollisionBoolean(obbTree.x10_tree->GetRoot(), collision.GetRight().GetTransform(), s0, obb1,
collision.GetLeft().GetFilter())) {
return true;
}
}
return false;
}
bool CCollidableOBBTreeGroup::CollideMovingSphere(const CInternalCollisionStructure& collision,
const zeus::CVector3f& dir, double& mag, CCollisionInfo& info) {
bool ret = false;
const auto& p0 = static_cast<const CCollidableSphere&>(collision.GetLeft().GetPrim());
const auto& p1 = static_cast<const CCollidableOBBTreeGroup&>(collision.GetRight().GetPrim());
zeus::CSphere s0 = p0.Transform(collision.GetLeft().GetTransform());
zeus::CAABox movedAABB = p0.CalculateLocalAABox();
zeus::CVector3f moveVec = float(mag) * dir;
movedAABB.accumulateBounds(movedAABB.min + moveVec);
movedAABB.accumulateBounds(movedAABB.max + moveVec);
zeus::COBBox p0Obb = zeus::COBBox::FromAABox(movedAABB, collision.GetRight().GetTransform().inverse() *
collision.GetLeft().GetTransform());
for (const std::unique_ptr<COBBTree>& tree : p1.x10_container->x0_trees) {
CCollidableOBBTree obbTree(tree.get(), p1.GetMaterial());
CMetroidAreaCollider::ResetInternalCounters();
if (obbTree.SphereCollisionMoving(obbTree.x10_tree->GetRoot(), collision.GetRight().GetTransform(), s0, p0Obb,
p0.GetMaterial(), collision.GetLeft().GetFilter(), dir, mag, info)) {
ret = true;
}
}
return ret;
}
bool CCollidableOBBTreeGroup::AABoxCollide(const CInternalCollisionStructure& collision, CCollisionInfoList& list) {
bool ret = false;
const auto& p0 = static_cast<const CCollidableAABox&>(collision.GetLeft().GetPrim());
const auto& p1 = static_cast<const CCollidableOBBTreeGroup&>(collision.GetRight().GetPrim());
const zeus::CAABox b0 = p0.CalculateAABox(collision.GetLeft().GetTransform());
const zeus::COBBox p0Obb = zeus::COBBox::FromAABox(
p0.CalculateLocalAABox(), collision.GetRight().GetTransform().inverse() * collision.GetLeft().GetTransform());
const std::array<zeus::CPlane, 6> planes{{
{zeus::skRight, b0.min.dot(zeus::skRight)},
{zeus::skLeft, b0.max.dot(zeus::skLeft)},
{zeus::skForward, b0.min.dot(zeus::skForward)},
{zeus::skBack, b0.max.dot(zeus::skBack)},
{zeus::skUp, b0.min.dot(zeus::skUp)},
{zeus::skDown, b0.max.dot(zeus::skDown)},
}};
for (const std::unique_ptr<COBBTree>& tree : p1.x10_container->x0_trees) {
CCollidableOBBTree obbTree(tree.get(), p1.GetMaterial());
if (obbTree.AABoxCollision(obbTree.x10_tree->GetRoot(), collision.GetRight().GetTransform(), b0, p0Obb,
p0.GetMaterial(), collision.GetLeft().GetFilter(), planes, list)) {
ret = true;
}
}
return ret;
}
bool CCollidableOBBTreeGroup::AABoxCollideBoolean(const CInternalCollisionStructure& collision) {
const auto& p0 = static_cast<const CCollidableAABox&>(collision.GetLeft().GetPrim());
const auto& p1 = static_cast<const CCollidableOBBTreeGroup&>(collision.GetRight().GetPrim());
zeus::CAABox b0 = p0.CalculateAABox(collision.GetLeft().GetTransform());
zeus::COBBox p0Obb = zeus::COBBox::FromAABox(p0.CalculateLocalAABox(), collision.GetRight().GetTransform().inverse() *
collision.GetLeft().GetTransform());
for (const std::unique_ptr<COBBTree>& tree : p1.x10_container->x0_trees) {
CCollidableOBBTree obbTree(tree.get(), p1.GetMaterial());
if (obbTree.AABoxCollisionBoolean(obbTree.x10_tree->GetRoot(), collision.GetRight().GetTransform(), b0, p0Obb,
collision.GetLeft().GetFilter())) {
return true;
}
}
return false;
}
bool CCollidableOBBTreeGroup::CollideMovingAABox(const CInternalCollisionStructure& collision,
const zeus::CVector3f& dir, double& mag, CCollisionInfo& info) {
bool ret = false;
const auto& p0 = static_cast<const CCollidableAABox&>(collision.GetLeft().GetPrim());
const auto& p1 = static_cast<const CCollidableOBBTreeGroup&>(collision.GetRight().GetPrim());
zeus::CAABox b0 = p0.CalculateAABox(collision.GetLeft().GetTransform());
CMovingAABoxComponents components(b0, dir);
zeus::CAABox movedAABB = p0.CalculateLocalAABox();
zeus::CVector3f moveVec = float(mag) * dir;
movedAABB.accumulateBounds(movedAABB.min + moveVec);
movedAABB.accumulateBounds(movedAABB.max + moveVec);
zeus::COBBox p0Obb = zeus::COBBox::FromAABox(movedAABB, collision.GetRight().GetTransform().inverse() *
collision.GetLeft().GetTransform());
for (const std::unique_ptr<COBBTree>& tree : p1.x10_container->x0_trees) {
CCollidableOBBTree obbTree(tree.get(), p1.GetMaterial());
CMetroidAreaCollider::ResetInternalCounters();
if (obbTree.AABoxCollisionMoving(obbTree.x10_tree->GetRoot(), collision.GetRight().GetTransform(), b0, p0Obb,
p0.GetMaterial(), collision.GetLeft().GetFilter(), components, dir, mag, info)) {
ret = true;
}
}
return ret;
}
CFactoryFnReturn FCollidableOBBTreeGroupFactory(const SObjectTag& tag, CInputStream& in, const CVParamTransfer& vparms,
CObjectReference* selfRef) {
return TToken<CCollidableOBBTreeGroupContainer>::GetIObjObjectFor(
std::make_unique<CCollidableOBBTreeGroupContainer>(in));
}
} // namespace metaforce