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feat: switch trigger physics volumes on and off at runtime

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The ActivatePhysics trigger command was a TODO. The client activates or
deactivates the object's physics component
(LWOPhysicsSystemComponent::msgActivatePhysics, 1.10.64 0x00ccf970);
the server now does the same to phantom physics: switching it off takes
the volume out of the physics world (dpWorld::DetachEntity, without
deleting it) and makes whatever was inside leave, switching it on adds
it back and whatever is inside enters on the next step. This lets
trigger driven volumes like the monument lasers turn on and off.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-27 00:01:34 -05:00
parent 5d3c2e6f9a
commit 27c562e242
9 changed files with 114 additions and 11 deletions
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28
dGame/dComponents/PhantomPhysicsComponent.cpp
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@@ -87,9 +87,31 @@ PhantomPhysicsComponent::PhantomPhysicsComponent(Entity* parent, const int32_t c
}
}
void ApplyCollisionEffect(const LWOOBJID& target, const ePhysicsEffectType effectType, const float effectScale);
PhantomPhysicsComponent::~PhantomPhysicsComponent() {
if (m_dpEntity) {
dpWorld::RemoveEntity(m_dpEntity);
if (!m_dpEntity) return;
if (m_PhysicsActive) dpWorld::RemoveEntity(m_dpEntity);
else delete m_dpEntity;
}
void PhantomPhysicsComponent::SetPhysicsActive(const bool active) {
if (!m_dpEntity || m_PhysicsActive == active) return;
m_PhysicsActive = active;
if (active) {
// Anything already inside enters on the next physics step
dpWorld::AddEntity(m_dpEntity);
return;
}
dpWorld::DetachEntity(m_dpEntity);
const std::vector<LWOOBJID> inside(m_dpEntity->GetCurrentlyCollidingObjects().begin(), m_dpEntity->GetCurrentlyCollidingObjects().end());
m_dpEntity->ClearCollisions();
for (const auto id : inside) {
ApplyCollisionEffect(id, m_EffectType, 1.0f);
m_Parent->OnCollisionLeavePhantom(id);
}
}
@@ -151,7 +173,7 @@ void ApplyCollisionEffect(const LWOOBJID& target, const ePhysicsEffectType effec
}
void PhantomPhysicsComponent::Update(float deltaTime) {
if (!m_dpEntity) return;
if (!m_dpEntity || !m_PhysicsActive) return;
//Process enter events
for (const auto id : m_dpEntity->GetNewObjects()) {