bool CollisionManager::checkLineOfSightWorldToCell(const Vector3& rayOrigin, const Vector3& rayEnd, float distance, CellObject* cellObject) {
ManagedReference<SceneObject*> building = cellObject->getParent();
if (building == NULL)
return true;
SharedObjectTemplate* objectTemplate = building->getObjectTemplate();
PortalLayout* portalLayout = objectTemplate->getPortalLayout();
if (portalLayout == NULL)
return true;
Ray ray = convertToModelSpace(rayOrigin, rayEnd, building);
if (cellObject->getCellNumber() >= portalLayout->getAppearanceTemplatesSize())
return true;
MeshAppearanceTemplate* app = portalLayout->getMeshAppearanceTemplate(cellObject->getCellNumber());
AABBTree* aabbTree = app->getAABBTree();
if (aabbTree == NULL)
return true;
float intersectionDistance;
Triangle* triangle = NULL;
if (aabbTree->intersects(ray, distance, intersectionDistance, triangle, true))
return false;
return true;
}
TriangleNode* CollisionManager::getTriangle(const Vector3& point, FloorMesh* floor) {
/*PathGraph* graph = node->getPathGraph();
FloorMesh* floor = graph->getFloorMesh();*/
AABBTree* aabbTree = floor->getAABBTree();
//Vector3 nodePosition = node->getPosition();
Vector3 rayOrigin(point.getX(), point.getZ() + 0.5, point.getY());
//Vector3 rayOrigin(point.getX(), point.getY(), point.getZ() + 0.2);
Vector3 direction(0, -1, 0);
Ray ray(rayOrigin, direction);
float intersectionDistance = 0;
Triangle* triangle = NULL;
aabbTree->intersects(ray, 4, intersectionDistance, triangle, true);
TriangleNode* triangleNode = dynamic_cast<TriangleNode*>(triangle);
if (triangleNode == NULL) {
//System::out << "CollisionManager::getTriangle triangleNode NULL" << endl;
return floor->findNearestTriangle(rayOrigin);
}
return triangleNode;
}
bool CollisionManager::checkLineOfSightInParentCell(SceneObject* object, Vector3& endPoint) {
ManagedReference<SceneObject*> parent = object->getParent();
if (parent == NULL || !parent->isCellObject())
return true;
CellObject* cell = cast<CellObject*>( parent.get());
SharedObjectTemplate* objectTemplate = parent->getRootParent().get()->getObjectTemplate();
PortalLayout* portalLayout = objectTemplate->getPortalLayout();
MeshAppearanceTemplate* appearanceMesh = NULL;
if (portalLayout == NULL)
return true;
try {
appearanceMesh = portalLayout->getMeshAppearanceTemplate(cell->getCellNumber());
} catch (Exception& e) {
return true;
}
if (appearanceMesh == NULL) {
//info("null appearance mesh ");
return true;
}
AABBTree* aabbTree = appearanceMesh->getAABBTree();
if (aabbTree == NULL)
return true;
//switching Y<->Z, adding 0.1 to account floor
Vector3 startPoint = object->getPosition();
startPoint.set(startPoint.getX(), startPoint.getY(), startPoint.getZ() + 0.1f);
endPoint.set(endPoint.getX(), endPoint.getY(), endPoint.getZ() + 0.1f);
Vector3 dir = endPoint - startPoint;
dir.normalize();
float distance = endPoint.distanceTo(startPoint);
float intersectionDistance;
Ray ray(startPoint, dir);
Triangle* triangle = NULL;
//nothing in the middle
if (aabbTree->intersects(ray, distance, intersectionDistance, triangle, true))
return false;
Ray ray2(endPoint, Vector3(0, -1, 0));
//check if we are in the cell with dir (0, -1, 0)
if (!aabbTree->intersects(ray2, 64000.f, intersectionDistance, triangle, true))
return false;
return true;
}
bool CollisionManager::checkMovementCollision(CreatureObject* creature, float x, float z, float y, Zone* zone) {
SortedVector<ManagedReference<QuadTreeEntry*> > closeObjects;
zone->getInRangeObjects(x, y, 128, &closeObjects, true);
//Vector3 rayStart(x, z + 0.25, y);
//Vector3 rayStart(creature->getWorldPositionX(), creature->getWorldPositionZ(), creature->getPos)
Vector3 rayStart = creature->getWorldPosition();
rayStart.set(rayStart.getX(), rayStart.getY(), rayStart.getZ() + 0.25f);
//Vector3 rayEnd(x + System::random(512), z + 0.3f, y + System::random(512));
/*Vector3 rayEnd;
rayEnd.set(targetPosition.getX(), targetPosition.getY(), targetPosition.getZ());*/
Vector3 rayEnd(x, z + 0.25, y);
float maxDistance = rayEnd.distanceTo(rayStart);
if (maxDistance == 0)
return false;
printf("%f\n", maxDistance);
SortedVector<IntersectionResult> results;
results.setAllowDuplicateInsertPlan();
printf("starting test\n");
Triangle* triangle;
for (int i = 0; i < closeObjects.size(); ++i) {
SceneObject* object = dynamic_cast<SceneObject*>(closeObjects.get(i).get());
if (object == NULL)
continue;
AABBTree* tree = getAABBTree(object, 255);
if (tree == NULL)
continue;
Ray ray = convertToModelSpace(rayStart, rayEnd, object);
//results.removeAll(10, 10);
//ordered by intersection distance
//tree->intersects(ray, maxDistance, results);
float intersectionDistance;
if (tree->intersects(ray, maxDistance, intersectionDistance, triangle, true)) {
String str = object->getObjectTemplate()->getFullTemplateString();
object->info("intersecting with me " + str, true);
return true;
}
}
return false;
}
Vector<float>* CollisionManager::getCellFloorCollision(float x, float y, CellObject* cellObject) {
Vector<float>* collisions = NULL;
ManagedReference<SceneObject*> rootObject = cellObject->getRootParent();
if (rootObject == NULL)
return NULL;
SharedObjectTemplate* templateObject = rootObject->getObjectTemplate();
if (templateObject == NULL)
return NULL;
PortalLayout* portalLayout = templateObject->getPortalLayout();
if (portalLayout == NULL)
return NULL;
FloorMesh* mesh = portalLayout->getFloorMesh(cellObject->getCellNumber());
if (mesh == NULL)
return NULL;
AABBTree* tree = mesh->getAABBTree();
if (tree == NULL)
return NULL;
Vector3 rayStart(x, 16384.f, y);
Vector3 rayEnd(x, -16384.f, y);
Vector3 norm = rayEnd - rayStart;
norm.normalize();
Ray ray(rayStart, norm);
SortedVector<IntersectionResult> results(3, 2);
tree->intersects(ray, 16384 * 2, results);
if (results.size() == 0)
return NULL;
collisions = new Vector<float>(results.size(), 1);
for (int i = 0; i < results.size(); ++i) {
float floorHeight = 16384 - results.get(i).getIntersectionDistance();
collisions->add(floorHeight);
}
return collisions;
}
void CollisionManager::getWorldFloorCollisions(float x, float y, Zone* zone, SortedVector<IntersectionResult>* result, const Vector<QuadTreeEntry*>& inRangeObjects) {
Vector3 rayStart(x, 16384.f, y);
Vector3 rayEnd(x, -16384.f, y);
for (int i = 0; i < inRangeObjects.size(); ++i) {
SceneObject* sceno = static_cast<SceneObject*>(inRangeObjects.get(i));
AABBTree* aabbTree = getAABBTree(sceno, 255);
if (aabbTree == NULL)
continue;
Ray ray = convertToModelSpace(rayStart, rayEnd, sceno);
aabbTree->intersects(ray, 16384 * 2, *result);
}
}
bool CollisionManager::checkSphereCollision(const Vector3& origin, float radius, Zone* zone) {
Vector3 sphereOrigin(origin.getX(), origin.getZ(), origin.getY());
SortedVector<ManagedReference<QuadTreeEntry*> > objects(512, 512);
zone->getInRangeObjects(origin.getX(), origin.getY(), 512, &objects, true);
for (int i = 0; i < objects.size(); ++i) {
AABBTree* aabbTree = NULL;
SceneObject* scno = cast<SceneObject*>(objects.get(i).get());
try {
aabbTree = getAABBTree(scno, -1);
if (aabbTree == NULL)
continue;
} catch (Exception& e) {
aabbTree = NULL;
} catch (...) {
throw;
}
if (aabbTree != NULL) {
//moving ray to model space
try {
Sphere sphere(convertToModelSpace(sphereOrigin, scno), radius);
//structure->info("checking ray with building dir" + String::valueOf(structure->getDirectionAngle()), true);
if (aabbTree->testCollide(sphere)) {
return true;
}
} catch (Exception& e) {
scno->error(e.getMessage());
} catch (...) {
throw;
}
}
}
return false;
}
bool CollisionManager::checkLineOfSightInBuilding(SceneObject* object1, SceneObject* object2, SceneObject* building) {
SharedObjectTemplate* objectTemplate = building->getObjectTemplate();
PortalLayout* portalLayout = objectTemplate->getPortalLayout();
if (portalLayout == NULL)
return true;
//we are in model space... in cells
Vector3 rayOrigin = object1->getPosition();
rayOrigin.set(rayOrigin.getX(), rayOrigin.getY(), rayOrigin.getZ() + 1.f);
Vector3 rayEnd = object2->getPosition();
rayEnd.set(rayEnd.getX(), rayEnd.getY(), rayEnd.getZ() + 1.f);
Vector3 direction(Vector3(rayEnd - rayOrigin));
direction.normalize();
float distance = rayEnd.distanceTo(rayOrigin);
float intersectionDistance;
Ray ray(rayOrigin, direction);
Triangle* triangle = NULL;
// we check interior cells
for (int i = 1; i < portalLayout->getAppearanceTemplatesSize(); ++i) {
MeshAppearanceTemplate* app = portalLayout->getMeshAppearanceTemplate(i);
AABBTree* aabbTree = app->getAABBTree();
if (aabbTree == NULL)
continue;
if (aabbTree->intersects(ray, distance, intersectionDistance, triangle, true))
return false;
}
return true;
}
bool HybridModel::Build(const OPCODECREATE& create)
{
// 1) Checkings
if(!create.mIMesh || !create.mIMesh->IsValid()) return false;
// Look for degenerate faces.
udword NbDegenerate = create.mIMesh->CheckTopology();
if(NbDegenerate) OpcodeLog("OPCODE WARNING: found %d degenerate faces in model! Collision might report wrong results!\n", NbDegenerate);
// We continue nonetheless....
Release(); // Make sure previous tree has been discarded
// 1-1) Setup mesh interface automatically
SetMeshInterface(create.mIMesh);
bool Status = false;
AABBTree* LeafTree = null;
Internal Data;
// 2) Build a generic AABB Tree.
mSource = new AABBTree;
CHECKALLOC(mSource);
// 2-1) Setup a builder. Our primitives here are triangles from input mesh,
// so we use an AABBTreeOfTrianglesBuilder.....
{
AABBTreeOfTrianglesBuilder TB;
TB.mIMesh = create.mIMesh;
TB.mNbPrimitives = create.mIMesh->GetNbTriangles();
TB.mSettings = create.mSettings;
TB.mSettings.mLimit = 16; // ### Hardcoded, but maybe we could let the user choose 8 / 16 / 32 ...
if(!mSource->Build(&TB)) goto FreeAndExit;
}
// 2-2) Here's the trick : create *another* AABB tree using the leaves of the first one (which are boxes, this time)
struct Local
{
// A callback to count leaf nodes
static bool CountLeaves(const AABBTreeNode* current, udword depth, void* user_data)
{
if(current->IsLeaf())
{
Internal* Data = (Internal*)user_data;
Data->mNbLeaves++;
}
return true;
}
// A callback to setup leaf nodes in our internal structures
static bool SetupLeafData(const AABBTreeNode* current, udword depth, void* user_data)
{
if(current->IsLeaf())
{
Internal* Data = (Internal*)user_data;
// Get current leaf's box
Data->mLeaves[Data->mNbLeaves] = *current->GetAABB();
// Setup leaf data
udword Index = (size_t(current->GetPrimitives()) - size_t(Data->mBase)) / sizeof(size_t);
Data->mTriangles[Data->mNbLeaves].SetData(current->GetNbPrimitives(), Index);
Data->mNbLeaves++;
}
return true;
}
};
// Walk the tree & count number of leaves
Data.mNbLeaves = 0;
mSource->Walk(Local::CountLeaves, &Data);
mNbLeaves = Data.mNbLeaves; // Keep track of it
// Special case for 1-leaf meshes
if(mNbLeaves==1)
{
mModelCode |= OPC_SINGLE_NODE;
Status = true;
goto FreeAndExit;
}
// Allocate our structures
Data.mLeaves = new IceMaths::AABB[Data.mNbLeaves];
CHECKALLOC(Data.mLeaves);
mTriangles = new LeafTriangles[Data.mNbLeaves];
CHECKALLOC(mTriangles);
// Walk the tree again & setup leaf data
Data.mTriangles = mTriangles;
Data.mBase = mSource->GetIndices();
Data.mNbLeaves = 0; // Reset for incoming walk
mSource->Walk(Local::SetupLeafData, &Data);
// Handle source indices
{
bool MustKeepIndices = true;
if(create.mCanRemap)
{
// We try to get rid of source indices (saving more ram!) by reorganizing triangle arrays...
// Remap can fail when we use callbacks => keep track of indices in that case (it still
// works, only using more memory)
if(create.mIMesh->RemapClient(mSource->GetNbPrimitives(), mSource->GetIndices()))
{
MustKeepIndices = false;
}
}
if(MustKeepIndices)
{
// Keep track of source indices (from vanilla tree)
mNbPrimitives = mSource->GetNbPrimitives();
mIndices = new udword[mNbPrimitives];
CopyMemory(mIndices, mSource->GetIndices(), mNbPrimitives*sizeof(udword));
}
}
// Now, create our optimized tree using previous leaf nodes
LeafTree = new AABBTree;
CHECKALLOC(LeafTree);
{
AABBTreeOfAABBsBuilder TB; // Now using boxes !
TB.mSettings = create.mSettings;
TB.mSettings.mLimit = 1; // We now want a complete tree so that we can "optimize" it
TB.mNbPrimitives = Data.mNbLeaves;
TB.mAABBArray = Data.mLeaves;
if(!LeafTree->Build(&TB)) goto FreeAndExit;
}
// 3) Create an optimized tree according to user-settings
if(!CreateTree(create.mNoLeaf, create.mQuantized)) goto FreeAndExit;
// 3-2) Create optimized tree
if(!mTree->Build(LeafTree)) goto FreeAndExit;
// Finally ok...
Status = true;
FreeAndExit: // Allow me this one...
DELETESINGLE(LeafTree);
// 3-3) Delete generic tree if needed
if(!create.mKeepOriginal) DELETESINGLE(mSource);
return Status;
}
bool CollisionManager::checkShipCollision(ShipObject* ship, const Vector3& targetPosition, Vector3& collisionPoint) {
Zone* zone = ship->getZone();
if (zone == NULL)
return false;
TerrainManager* terrainManager = zone->getPlanetManager()->getTerrainManager();
if (terrainManager->getProceduralTerrainAppearance() != NULL) {
float height = terrainManager->getHeight(targetPosition.getX(), targetPosition.getY());
float waterHeight = -16368.f;
if (terrainManager->getWaterHeight(targetPosition.getY(), targetPosition.getY(), waterHeight))
height = MAX(waterHeight, height);
if (height > targetPosition.getZ()) {
collisionPoint = targetPosition;
collisionPoint.setZ(height);
//ship->info("colliding with terrain", true);
return true;
}
}
Vector3 rayOrigin = ship->getWorldPosition();
rayOrigin.set(rayOrigin.getX(), rayOrigin.getY(), rayOrigin.getZ());
Vector3 rayEnd;
rayEnd.set(targetPosition.getX(), targetPosition.getY(), targetPosition.getZ());
float dist = rayEnd.distanceTo(rayOrigin);
float intersectionDistance;
Triangle* triangle = NULL;
SortedVector<ManagedReference<QuadTreeEntry*> > objects(512, 512);
zone->getInRangeObjects(targetPosition.getX(), targetPosition.getY(), 512, &objects, true);
for (int i = 0; i < objects.size(); ++i) {
AABBTree* aabbTree = NULL;
SceneObject* scno = cast<SceneObject*>(objects.get(i).get());
try {
aabbTree = getAABBTree(scno, -1);
if (aabbTree == NULL)
continue;
} catch (Exception& e) {
aabbTree = NULL;
} catch (...) {
throw;
}
if (aabbTree != NULL) {
//moving ray to model space
try {
Ray ray = convertToModelSpace(rayOrigin, rayEnd, scno);
//structure->info("checking ray with building dir" + String::valueOf(structure->getDirectionAngle()), true);
if (aabbTree->intersects(ray, dist, intersectionDistance, triangle, true)) {
//rayOrigin.set(rayOrigin.getX(), rayOrigin.getY(), rayOrigin.getZ());
Vector3 direction = rayEnd - rayOrigin;
direction.normalize();
//intersectionDistance -= 0.5f;
collisionPoint.set(rayOrigin.getX() + (direction.getX() * intersectionDistance), rayOrigin.getY() + (direction.getY() * intersectionDistance), rayOrigin.getZ() + (direction.getZ() * intersectionDistance));
//ship->info("colliding with building", true);
return true;
}
} catch (Exception& e) {
ship->error(e.getMessage());
} catch (...) {
throw;
}
}
}
return false;
}
bool CollisionManager::checkLineOfSight(SceneObject* object1, SceneObject* object2) {
Zone* zone = object1->getZone();
if (zone == NULL)
return false;
if (object2->getZone() != zone)
return false;
if (object1->isAiAgent() || object2->isAiAgent()) {
Vector<WorldCoordinates>* path = PathFinderManager::instance()->findPath(object1, object2);
if (path == NULL)
return false;
else
delete path;
}
ManagedReference<SceneObject*> rootParent1 = object1->getRootParent();
ManagedReference<SceneObject*> rootParent2 = object2->getRootParent();
if (rootParent1 != NULL || rootParent2 != NULL) {
if (rootParent1 == rootParent2) {
return CollisionManager::checkLineOfSightInBuilding(object1, object2, rootParent1);
} else if (rootParent1 != NULL && rootParent2 != NULL)
return false; //different buildings
}
//switching z<->y, adding player height (head)
Vector3 rayOrigin = object1->getWorldPosition();
float heightOrigin = 1.f;
float heightEnd = 1.f;
Reference<SortedVector<ManagedReference<QuadTreeEntry*> >*> closeObjects = new SortedVector<ManagedReference<QuadTreeEntry*> >();
// = object1->getCloseObjects();
int maxInRangeObjectCount = 0;
if (object1->getCloseObjects() == NULL) {
object1->info("Null closeobjects vector in CollisionManager::checkLineOfSight", true);
// closeObjectsCopy = new SortedVector<ManagedReference<QuadTreeEntry*> >();
zone->getInRangeObjects(object1->getPositionX(), object1->getPositionY(), 512, closeObjects, true);
} else {
CloseObjectsVector* vec = (CloseObjectsVector*) object1->getCloseObjects();
vec->safeCopyTo(*closeObjects);
}
if (object1->isCreatureObject())
heightOrigin = getRayOriginPoint(cast<CreatureObject*>(object1));
if (object2->isCreatureObject())
heightEnd = getRayOriginPoint(cast<CreatureObject*>(object2));
rayOrigin.set(rayOrigin.getX(), rayOrigin.getY(), rayOrigin.getZ() + heightOrigin);
Vector3 rayEnd = object2->getWorldPosition();
rayEnd.set(rayEnd.getX(), rayEnd.getY(), rayEnd.getZ() + heightEnd);
float dist = rayEnd.distanceTo(rayOrigin);
float intersectionDistance;
Triangle* triangle = NULL;
// zone->rlock();
try {
for (int i = 0; i < closeObjects->size(); ++i) {
AABBTree* aabbTree = NULL;
SceneObject* scno = cast<SceneObject*>(closeObjects->get(i).get());
try {
aabbTree = getAABBTree(scno, 255);
if (aabbTree == NULL)
continue;
} catch (Exception& e) {
aabbTree = NULL;
} catch (...) {
// zone->runlock();
throw;
}
if (aabbTree != NULL) {
//moving ray to model space
// zone->runlock();
try {
Ray ray = convertToModelSpace(rayOrigin, rayEnd, scno);
//structure->info("checking ray with building dir" + String::valueOf(structure->getDirectionAngle()), true);
if (aabbTree->intersects(ray, dist, intersectionDistance, triangle, true)) {
return false;
}
} catch (...) {
throw;
}
// zone->rlock();
}
}
} catch (Exception& e) {
Logger::console.error("unreported exception caught in bool CollisionManager::checkLineOfSight(SceneObject* object1, SceneObject* object2) ");
Logger::console.error(e.getMessage());
}
// zone->runlock();
ManagedReference<SceneObject*> parent1 = object1->getParent();
ManagedReference<SceneObject*> parent2 = object2->getParent();
if (parent1 != NULL || parent2 != NULL) {
CellObject* cell = NULL;
if (parent1 != NULL && parent1->isCellObject()) {
cell = cast<CellObject*>(parent1.get());
} else if (parent2 != NULL && parent2->isCellObject()) {
cell = cast<CellObject*>(parent2.get());
}
if (cell != NULL) {
return checkLineOfSightWorldToCell(rayOrigin, rayEnd, dist, cell);
}
}
return true;
}
float CollisionManager::getWorldFloorCollision(float x, float y, Zone* zone, bool testWater) {
SortedVector<ManagedReference<QuadTreeEntry*> > closeObjects;
zone->getInRangeObjects(x, y, 128, &closeObjects, true);
PlanetManager* planetManager = zone->getPlanetManager();
if (planetManager == NULL)
return 0.f;
float height = 0;
TerrainManager* terrainManager = planetManager->getTerrainManager();
//need to include exclude affectors in the terrain calcs
height = terrainManager->getHeight(x, y);
Vector3 rayStart(x, 16384.f, y);
Vector3 rayEnd(x, -16384.f, y);
Triangle* triangle = NULL;
if (testWater) {
float waterHeight;
if (terrainManager->getWaterHeight(x, y, waterHeight))
if (waterHeight > height)
height = waterHeight;
}
float intersectionDistance;
for (int i = 0; i < closeObjects.size(); ++i) {
BuildingObject* building = dynamic_cast<BuildingObject*>(closeObjects.get(i).get());
if (building == NULL)
continue;
//building->getObjectTemplate()->get
SharedObjectTemplate* templateObject = building->getObjectTemplate();
if (templateObject == NULL)
continue;
PortalLayout* portalLayout = templateObject->getPortalLayout();
if (portalLayout == NULL)
continue;
if (portalLayout->getFloorMeshNumber() == 0)
continue;
//find nearest entrance
FloorMesh* exteriorFloorMesh = portalLayout->getFloorMesh(0); // get outside layout
AABBTree* aabbTree = exteriorFloorMesh->getAABBTree();
if (aabbTree == NULL)
continue;
Ray ray = convertToModelSpace(rayStart, rayEnd, building);
if (aabbTree->intersects(ray, 16384 * 2, intersectionDistance, triangle, true)) {
float floorHeight = 16384 - intersectionDistance;
if (floorHeight > height)
height = floorHeight;
}
}
return height;
}
