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DarkflameServer/dGame/dComponents/PhysicsComponent.cpp
Aaron Kimbrell 5d3c2e6f9a fix: filter physics volumes like the client's collision groups 
Volumes on the server touched far more than in the client:

- An enemy's body in the physics world was a sphere the size of its aggro
  radius, so trigger and damage volumes caught enemies from far away
  (Cavalry Hill enemies taking damage on spawn). It is now the enemy's
  own radius and collision group from its physics component.
- Trigger volumes ignored their collision group and caught everything.
  dpEntity now filters with the client's collision filter
  (PeCollisionFilter, 1.10.64 0x00fb6940, group table from 0x00fcf9a0):
  POI walls ignore enemies, threat clearing walls ignore players, and
  so on. The aggro sensor keeps seeing only players.
- Rotated boxes were tested as the axis aligned box around them, which
  for a turned wall covers a big square (the AG survival boundary).
  Sphere and point tests now use the box's own axes.

Proximity monitors take an optional collision group like live's
SetProximityRadius; the AM shield generators use live's (10 finds
enemies, 1 finds players).

Fixes #1127
Refs #1971

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-28 22:30:54 -05:00

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#include "PhysicsComponent.h"
#include "eReplicaComponentType.h"
#include "NiPoint3.h"
#include "NiQuaternion.h"
#include "CDComponentsRegistryTable.h"
#include "CDPhysicsComponentTable.h"
#include "dpEntity.h"
#include "dpWorld.h"
#include "dpShapeBox.h"
#include "dpShapeSphere.h"
#include "EntityInfo.h"
#include "Amf3.h"
PhysicsComponent::PhysicsComponent(Entity* parent, const int32_t componentID) : Component(parent, componentID) {
m_Position = NiPoint3Constant::ZERO;
m_Rotation = QuatUtils::IDENTITY;
m_DirtyPosition = false;
CDPhysicsComponentTable* physicsComponentTable = CDClientManager::GetTable<CDPhysicsComponentTable>();
if (physicsComponentTable) {
auto* info = physicsComponentTable->GetByID(componentID);
if (info) {
m_CollisionGroup = info->collisionGroup;
}
}
if (m_Parent->HasVar(u"CollisionGroupID")) m_CollisionGroup = m_Parent->GetVar<int32_t>(u"CollisionGroupID");
RegisterMsg(&PhysicsComponent::OnGetPosition);
}
bool PhysicsComponent::OnGetPosition(GameMessages::GetPosition& msg) {
msg.pos = GetPosition();
return true;
}
void PhysicsComponent::Serialize(RakNet::BitStream& outBitStream, bool bIsInitialUpdate) {
outBitStream.Write(bIsInitialUpdate || m_DirtyPosition);
if (bIsInitialUpdate || m_DirtyPosition) {
outBitStream.Write(m_Position.x);
outBitStream.Write(m_Position.y);
outBitStream.Write(m_Position.z);
outBitStream.Write(m_Rotation.x);
outBitStream.Write(m_Rotation.y);
outBitStream.Write(m_Rotation.z);
outBitStream.Write(m_Rotation.w);
if (!bIsInitialUpdate) m_DirtyPosition = false;
}
}
dpEntity* PhysicsComponent::CreatePhysicsEntity(eReplicaComponentType type) {
CDComponentsRegistryTable* compRegistryTable = CDClientManager::GetTable<CDComponentsRegistryTable>();
auto componentID = compRegistryTable->GetByIDAndType(m_Parent->GetLOT(), type);
CDPhysicsComponentTable* physComp = CDClientManager::GetTable<CDPhysicsComponentTable>();
if (physComp == nullptr) return nullptr;
auto* info = physComp->GetByID(componentID);
if (info == nullptr || info->physicsAsset == "" || info->physicsAsset == "NO_PHYSICS") return nullptr;
dpEntity* toReturn;
if (info->physicsAsset == "miscellaneous\\misc_phys_10x1x5.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 10.0f, 5.0f, 1.0f);
} else if (info->physicsAsset == "miscellaneous\\misc_phys_640x640.hkx") {
// TODO Fix physics simulation to do simulation at high velocities due to bullet through paper problem...
toReturn = new dpEntity(m_Parent->GetObjectID(), 1638.4f, 13.521004f * 2.0f, 1638.4f);
// Move this down by 13.521004 units so it is still effectively at the same height as before
m_Position = m_Position - NiPoint3Constant::UNIT_Y * 13.521004f;
} else if (info->physicsAsset == "env\\trigger_wall_tall.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 10.0f, 25.0f, 1.0f);
} else if (info->physicsAsset == "env\\env_gen_placeholderphysics.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 20.0f, 20.0f, 20.0f);
} else if (info->physicsAsset == "env\\POI_trigger_wall.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 1.0f, 12.5f, 20.0f); // Not sure what the real size is
} else if (info->physicsAsset == "env\\NG_NinjaGo\\env_ng_gen_gate_chamber_puzzle_ceiling_tile_falling_phantom.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 18.0f, 5.0f, 15.0f);
m_Position += QuatUtils::Forward(m_Rotation) * 7.5f;
} else if (info->physicsAsset == "env\\NG_NinjaGo\\ng_flamejet_brick_phantom.HKX") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 1.0f, 1.0f, 12.0f);
m_Position += QuatUtils::Forward(m_Rotation) * 6.0f;
} else if (info->physicsAsset == "env\\Ring_Trigger.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 6.0f, 6.0f, 6.0f);
} else if (info->physicsAsset == "env\\vfx_propertyImaginationBall.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 4.5f);
} else if (info->physicsAsset == "env\\env_won_fv_gas-blocking-volume.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 390.496826f, 111.467964f, 600.821534f, true);
m_Position.y -= (111.467964f * m_Parent->GetDefaultScale()) / 2;
// Leaving these out for now since they cause more issues than they solve in racing tracks without proper OBB checks.
} /* else if (info->physicsAsset == "env\\GFTrack_DeathVolume1_CaveExit.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 112.416870f, 50.363434f, 87.679268f);
} else if (info->physicsAsset == "env\\GFTrack_DeathVolume2_RoadGaps.hkx") {
toReturn = new dpEntity(m_Parent->GetObjectID(), 48.386536f, 50.363434f, 259.361755f);
} */ else {
// LOG_DEBUG("This one is supposed to have %s", info->physicsAsset.c_str());
//add fallback cube:
toReturn = new dpEntity(m_Parent->GetObjectID(), 2.0f, 2.0f, 2.0f);
}
// 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));
return toReturn;
}
dpEntity* PhysicsComponent::CreatePhysicsLnv(const float scale, const eReplicaComponentType type) const {
int pcShapeType = -1;
float x = 0.0f;
float y = 0.0f;
float z = 0.0f;
float width = 0.0f; //aka "radius"
float height = 0.0f;
dpEntity* toReturn = nullptr;
if (m_Parent->HasVar(u"primitiveModelType")) {
pcShapeType = m_Parent->GetVar<int32_t>(u"primitiveModelType");
x = m_Parent->GetVar<float>(u"primitiveModelValueX");
y = m_Parent->GetVar<float>(u"primitiveModelValueY");
z = m_Parent->GetVar<float>(u"primitiveModelValueZ");
} else {
CDComponentsRegistryTable* compRegistryTable = CDClientManager::GetTable<CDComponentsRegistryTable>();
auto componentID = compRegistryTable->GetByIDAndType(m_Parent->GetLOT(), type);
CDPhysicsComponentTable* physComp = CDClientManager::GetTable<CDPhysicsComponentTable>();
if (physComp == nullptr) return nullptr;
auto info = physComp->GetByID(componentID);
if (info == nullptr) return nullptr;
pcShapeType = info->pcShapeType;
width = info->playerRadius;
height = info->playerHeight;
}
switch (pcShapeType) {
case 0: { // HKX type
break;
}
case 1: { //Make a new box shape
NiPoint3 boxSize(x, y, z);
if (x == 0.0f) {
//LU has some weird values, so I think it's best to scale them down a bit
if (height < 0.5f) height = 2.0f;
if (width < 0.5f) width = 2.0f;
//Scale them:
width = width * scale;
height = height * scale;
boxSize = NiPoint3(width, height, width);
}
toReturn = new dpEntity(m_Parent->GetObjectID(), boxSize);
toReturn->SetPosition({ m_Position.x, m_Position.y - (height / 2), m_Position.z });
break;
}
case 2: { //Make a new cylinder shape
break;
}
case 3: { //Make a new sphere shape
auto [x, y, z] = m_Position;
toReturn = new dpEntity(m_Parent->GetObjectID(), width);
toReturn->SetPosition({ x, y, z });
break;
}
case 4: { //Make a new capsule shape
break;
}
}
if (toReturn) {
toReturn->SetCollisionGroup(static_cast<uint32_t>(m_CollisionGroup));
dpWorld::AddEntity(toReturn);
}
return toReturn;
}
void PhysicsComponent::SpawnVertices(dpEntity* entity) const {
if (!entity) return;
LOG("Spawning vertices for %llu", m_Parent->GetObjectID());
EntityInfo info;
info.lot = 33;
info.spawner = nullptr;
info.spawnerID = m_Parent->GetObjectID();
info.spawnerNodeID = 0;
// These don't use overloaded methods as dPhysics does not link with dGame at the moment.
auto box = dynamic_cast<dpShapeBox*>(entity->GetShape());
if (box) {
for (auto vert : box->GetVertices()) {
LOG("Vertex at %f, %f, %f", vert.x, vert.y, vert.z);
info.pos = vert;
Entity* newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
}
}
auto sphere = dynamic_cast<dpShapeSphere*>(entity->GetShape());
if (sphere) {
auto [x, y, z] = entity->GetPosition(); // Use shapes position instead of the parent's position in case it's different
float plusX = x + sphere->GetRadius();
float minusX = x - sphere->GetRadius();
float plusY = y + sphere->GetRadius();
float minusY = y - sphere->GetRadius();
float plusZ = z + sphere->GetRadius();
float minusZ = z - sphere->GetRadius();
auto radius = sphere->GetRadius();
LOG("Radius: %f", radius);
LOG("Plus Vertices %f %f %f", plusX, plusY, plusZ);
LOG("Minus Vertices %f %f %f", minusX, minusY, minusZ);
info.pos = NiPoint3{ x, plusY, z };
Entity* newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
info.pos = NiPoint3{ x, minusY, z };
newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
info.pos = NiPoint3{ plusX, y, z };
newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
info.pos = NiPoint3{ minusX, y, z };
newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
info.pos = NiPoint3{ x, y, plusZ };
newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
info.pos = NiPoint3{ x, y, minusZ };
newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
info.pos = NiPoint3{ x, y, z };
newEntity = Game::entityManager->CreateEntity(info);
Game::entityManager->ConstructEntity(newEntity);
}
}
bool PhysicsComponent::OnGetObjectReportInfo(GameMessages::GetObjectReportInfo& reportInfo) {
auto& info = reportInfo.info->PushDebug("Physics");
reportInfo.subCategory = &info;
auto& pos = info.PushDebug("Position").PushDebug(m_Position);
auto& rot = info.PushDebug("Rotation").PushDebug(m_Rotation);
info.PushDebug<AMFIntValue>("Collision Group") = m_CollisionGroup;
return true;
}
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