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feat(physics): simple and phantom physics objects register as movement blockers

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A fixed simple physics object, or a phantom volume, that its data marks as a
wall for enemies (a navmesh carver, or solid with a group only enemies touch)
adds its shape to the world's movement blockers, and takes it out again when it
goes away. Only shapes the server knows are used; an unknown asset's stand in
cube would be a guess, so it is logged and left out.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-29 17:37:45 -05:00
parent 425b913848
commit 62f5f13846
4 changed files with 56 additions and 3 deletions
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38
dGame/dComponents/PhysicsComponent.cpp
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@@ -12,11 +12,14 @@
#include "dpEntity.h"
#include "dpWorld.h"
#include "dpMovementBlockers.h"
#include "dpShapeBox.h"
#include "dpShapeSphere.h"
#include "EntityInfo.h"
#include "Amf3.h"
#include "Entity.h"
#include "Logger.h"
PhysicsComponent::PhysicsComponent(Entity* parent, const int32_t componentID) : Component(parent, componentID) {
m_Position = NiPoint3Constant::ZERO;
@@ -37,6 +40,37 @@ PhysicsComponent::PhysicsComponent(Entity* parent, const int32_t componentID) :
RegisterMsg(&PhysicsComponent::OnGetPosition);
}
PhysicsComponent::~PhysicsComponent() {
if (!m_MovementBlocker) return;
dpWorld::RemoveMovementBlocker(m_MovementBlocker);
delete m_MovementBlocker;
}
void PhysicsComponent::RegisterMovementBlocker(const eReplicaComponentType type, const bool solid, const float scale) {
if (m_MovementBlocker) return;
const auto filter = dpMovementBlockers::BlockingFilter(m_Parent->GetVar<bool>(u"navmesh_carver"), solid, static_cast<uint32_t>(m_CollisionGroup));
if (!filter) return;
// Some shapes move the object's position to line up with the client's; that is for the shape only
const auto placed = m_Position;
bool isFallback = false;
auto* const blocker = CreatePhysicsEntity(type, &isFallback);
const auto shapePosition = m_Position;
m_Position = placed;
if (!blocker) return;
if (isFallback) {
LOG_DEBUG("%llu (LOT %i) should block movement, but the server doesn't know its shape", m_Parent->GetObjectID(), m_Parent->GetLOT());
delete blocker;
return;
}
blocker->SetScale(scale);
blocker->SetRotation(m_Rotation);
blocker->SetPosition(shapePosition);
m_MovementBlocker = blocker;
dpWorld::AddMovementBlocker(m_MovementBlocker, *filter);
}
bool PhysicsComponent::OnGetPosition(GameMessages::GetPosition& msg) {
msg.pos = GetPosition();
return true;
@@ -56,7 +90,8 @@ void PhysicsComponent::Serialize(RakNet::BitStream& outBitStream, bool bIsInitia
}
}
dpEntity* PhysicsComponent::CreatePhysicsEntity(eReplicaComponentType type) {
dpEntity* PhysicsComponent::CreatePhysicsEntity(eReplicaComponentType type, bool* isFallback) {
if (isFallback) *isFallback = false;
CDComponentsRegistryTable* compRegistryTable = CDClientManager::GetTable<CDComponentsRegistryTable>();
auto componentID = compRegistryTable->GetByIDAndType(m_Parent->GetLOT(), type);
@@ -115,6 +150,7 @@ dpEntity* PhysicsComponent::CreatePhysicsEntity(eReplicaComponentType type) {
//add fallback cube:
toReturn = new dpEntity(m_Parent->GetObjectID(), 2.0f, 2.0f, 2.0f);
if (isFallback) *isFallback = true;
}
// Only touch what the client lets this group touch (e.g. POI walls ignore enemies, threat clearing walls ignore players)
toReturn->SetCollisionGroup(static_cast<uint32_t>(m_CollisionGroup));