Object* ObjectManager::collision(const Ogre::Vector3& fromPoint, const Ogre::Vector3& toPoint,
float collisionRadius, int queryMask)
{
Ogre::Entity* entity = mCollision->collidesWithObject(fromPoint, toPoint, collisionRadius, queryMask);
if (entity && entity->isVisible())
return getObject(entity->getName());
return 0;
}
bool PlaypenApp::appFrameStarted(opal::real dt)
{
// Do per-frame application-specific things here.
// Handle speech input.
bool keepLooping = true;
bool makeObject = false;
std::string material;
ObjectType type;
std::string outputString;
while (voce::getRecognizerQueueSize() > 0)
{
std::string s = voce::popRecognizedString();
//// Check if the string contains 'quit'.
//if (std::string::npos != s.rfind("quit"))
//{
// keepLooping = false;
//}
// Check if we should reset.
if (std::string::npos != s.rfind("reset"))
{
// Make sure the PhysicalCamera isn't grabbing anything.
mPhysicalCamera->release();
destroyAllPhysicalEntities();
setupInitialPhysicalEntities();
voce::synthesize("reset");
return true;
}
// Check for material color.
if (std::string::npos != s.rfind("yellow"))
{
outputString += "yellow";
material = "Plastic/Yellow";
}
else if (std::string::npos != s.rfind("red"))
{
outputString += "red";
material = "Plastic/Red";
}
else if (std::string::npos != s.rfind("blue"))
{
outputString += "blue";
material = "Plastic/Blue";
}
else if (std::string::npos != s.rfind("green"))
{
outputString += "green";
material = "Plastic/Green";
}
else if (std::string::npos != s.rfind("purple"))
{
outputString += "purple";
material = "Plastic/Purple";
}
else if (std::string::npos != s.rfind("orange"))
{
outputString += "orange";
material = "Plastic/Orange";
}
else
{
// Default to dark gray.
material = "Plastic/DarkGray";
}
// Check for object type.
if (std::string::npos != s.rfind("box"))
{
outputString += " box";
type = OBJECT_TYPE_BOX;
makeObject = true;
}
else if (std::string::npos != s.rfind("sphere"))
{
outputString += " sphere";
type = OBJECT_TYPE_SPHERE;
makeObject = true;
}
else if (std::string::npos != s.rfind("wall"))
{
outputString += " wall";
type = OBJECT_TYPE_WALL;
makeObject = true;
}
else if (std::string::npos != s.rfind("tower"))
{
outputString += " tower";
type = OBJECT_TYPE_TOWER;
makeObject = true;
}
else if (std::string::npos != s.rfind("character"))
{
outputString += " character";
type = OBJECT_TYPE_RAGDOLL;
makeObject = true;
}
if (makeObject)
{
voce::synthesize(outputString);
createObject(material, type);
}
}
// Update the grasping spring line.
if (mPhysicalCamera->isGrasping())
{
Ogre::Entity* pickingSphere =
mSceneMgr->getEntity("pickingSphere");
if (!pickingSphere->isVisible())
{
pickingSphere->setVisible(true);
}
Ogre::Entity* springLine =
mSceneMgr->getEntity("springLine");
if (!springLine->isVisible())
{
springLine->setVisible(true);
}
opal::Point3r desiredPos =
mPhysicalCamera->getGraspGlobalPos();
Ogre::Vector3 point0(desiredPos[0], desiredPos[1], desiredPos[2]);
opal::Point3r attachPos = mPhysicalCamera->getAttachGlobalPos();
Ogre::Vector3 point1(attachPos[0], attachPos[1], attachPos[2]);
pickingSphere->getParentSceneNode()->setPosition(point1);
Ogre::Vector3 lineVec = point0 - point1;
if (!lineVec.isZeroLength())
{
Ogre::SceneNode* springLineNode =
springLine->getParentSceneNode();
springLineNode->setPosition(0.5 * (point0 + point1));
springLineNode->setDirection(lineVec);
springLineNode->setScale(0.1, 0.1, lineVec.length());
}
else
{
springLine->setVisible(false);
}
}
else
{
Ogre::Entity* pickingSphere =
mSceneMgr->getEntity("pickingSphere");
if (pickingSphere->isVisible())
{
pickingSphere->setVisible(false);
}
Ogre::Entity* springLine =
mSceneMgr->getEntity("springLine");
if (springLine->isVisible())
{
springLine->setVisible(false);
}
}
// Return true to continue looping.
return keepLooping;
}
bool PlaypenApp::appFrameStarted(opal::real dt)
{
// Do per-frame application-specific things here.
// Update the grasping spring line.
if (mPhysicalCamera->isGrasping())
{
Ogre::Entity* pickingSphere =
mSceneMgr->getEntity("pickingSphere");
if (!pickingSphere->isVisible())
{
pickingSphere->setVisible(true);
}
Ogre::Entity* springLine =
mSceneMgr->getEntity("springLine");
if (!springLine->isVisible())
{
springLine->setVisible(true);
}
opal::Point3r desiredPos =
mPhysicalCamera->getGraspGlobalPos();
Ogre::Vector3 point0(desiredPos[0], desiredPos[1], desiredPos[2]);
opal::Point3r attachPos = mPhysicalCamera->getAttachGlobalPos();
Ogre::Vector3 point1(attachPos[0], attachPos[1], attachPos[2]);
pickingSphere->getParentSceneNode()->setPosition(point1);
Ogre::Vector3 lineVec = point0 - point1;
if (!lineVec.isZeroLength())
{
Ogre::SceneNode* springLineNode =
springLine->getParentSceneNode();
springLineNode->setPosition(0.5 * (point0 + point1));
springLineNode->setDirection(lineVec, Ogre::Node::TS_WORLD);
springLineNode->setScale(0.1, 0.1, lineVec.length());
}
else
{
springLine->setVisible(false);
}
}
else
{
Ogre::Entity* pickingSphere =
mSceneMgr->getEntity("pickingSphere");
if (pickingSphere->isVisible())
{
pickingSphere->setVisible(false);
}
Ogre::Entity* springLine =
mSceneMgr->getEntity("springLine");
if (springLine->isVisible())
{
springLine->setVisible(false);
}
}
// Return true to continue looping.
return true;
}
// BETWEEN FRAME OPERATION
void VisCalcFrustDist::calculateEntityVisibility(Ogre::Node* regionNode, Ogre::Node* node, bool recurse) {
if (recurse && node->numChildren() > 0) {
// if node has more children nodes, visit them recursivily
Ogre::SceneNode::ChildNodeIterator nodeChildIterator = node->getChildIterator();
while (nodeChildIterator.hasMoreElements()) {
Ogre::Node* nodeChild = nodeChildIterator.getNext();
// 'false' causes it to not visit sub-children which are included in parent and pos relative to parent
calculateEntityVisibility(regionNode, nodeChild, false);
visChildren++;
}
}
visNodes++;
// children taken care of... check fo attached objects to this node
Ogre::SceneNode* snode = (Ogre::SceneNode*)node;
// the camera needs to be made relative to the region
// Ogre::Vector3 relCameraPos = LG::RendererOgre::Instance()->m_camera->getPosition() - regionNode->getPosition();
// float snodeDistance = LG::RendererOgre::Instance()->m_camera->getPosition().distance(snode->_getWorldAABB().getCenter());
// float snodeDistance = relCameraPos.distance(snode->getPosition());
float snodeDistance = LG::RendererOgre::Instance()->m_camera->getDistanceFromCamera(regionNode, snode->getPosition());
Ogre::SceneNode::ObjectIterator snodeObjectIterator = snode->getAttachedObjectIterator();
while (snodeObjectIterator.hasMoreElements()) {
Ogre::MovableObject* snodeObject = snodeObjectIterator.getNext();
if (snodeObject->getMovableType() == "Entity") {
visEntities++;
Ogre::Entity* snodeEntity = (Ogre::Entity*)snodeObject;
// check it's visibility if it's not world geometry (terrain and ocean)
if ((snodeEntity->getQueryFlags() & Ogre::SceneManager::WORLD_GEOMETRY_TYPE_MASK) == 0) {
// computation if it should be visible
// Note: this call is overridden by derived classes that do fancier visibility rules
bool shouldBeVisible = this->CalculateVisibilityImpl(LG::RendererOgre::Instance()->m_camera, snodeEntity, snodeDistance);
if (snodeEntity->isVisible()) {
// we currently think this object is visible. make sure it should stay that way
if (shouldBeVisible) {
// it should stay visible
visVisToVis++;
}
else {
// not visible any more... make invisible nad unload it`
/*
Ogre::Vector3 cPos = LG::RendererOgre::Instance()->m_camera->getPosition();
Ogre::Vector3 rPos = regionNode->getPosition();
Ogre::Vector3 sPos = snode->getPosition();
LG::Log("VisToInVis: cPos=<%f,%f,%f>, rPos=<%f,%f,%f>, sPos(%s)=<%f,%f,%f>, d=%f",
cPos.x, cPos.y, cPos.z,
rPos.x, rPos.y, rPos.z,
snode->getName().c_str(),
sPos.x, sPos.y, sPos.z,
snodeDistance);
*/
snodeEntity->setVisible(false);
snode->needUpdate(true);
visVisToInvis++;
if (!snodeEntity->getMesh().isNull()) {
queueMeshUnload(snodeEntity->getMesh());
}
}
}
else {
// the entity currently thinks it's not visible.
// check to see if it should be visible by checking a fake bounding box
if (shouldBeVisible) {
// it should become visible again
if (!snodeEntity->getMesh().isNull()) {
// queueMeshLoad(snodeEntity, snodeEntity->getMesh());
LG::OLMeshTracker::Instance()->MakeLoaded(snodeEntity->getMesh()->getName(),
Ogre::String(""), Ogre::String("visible"), snodeEntity);
}
// snodeEntity->setVisible(true); // must happen after mesh loaded
visInvisToVis++;
}
else {
visInvisToInvis++;
}
}
}
}
}
}
void MeshCollisionDetector::testCollision(Ogre::Ray& ray, CollisionResult& result)
{
// at this point we have raycast to a series of different objects bounding boxes.
// we need to test these different objects to see which is the first polygon hit.
// there are some minor optimizations (distance based) that mean we wont have to
// check all of the objects most of the time, but the worst case scenario is that
// we need to test every triangle of every object.
Ogre::Real closest_distance = -1.0f;
Ogre::Vector3 closest_result = Ogre::Vector3::ZERO;
const Model::Model::SubModelSet& submodels = mModel->getSubmodels();
for (Model::Model::SubModelSet::const_iterator I = submodels.begin(); I != submodels.end(); ++I)
{
Ogre::Entity* pentity = (*I)->getEntity();
if (pentity->isVisible() && pentity->getParentNode()) {
// mesh data to retrieve
size_t vertex_count;
size_t index_count;
Ogre::Vector3 *vertices;
unsigned long *indices;
// get the mesh information
getMeshInformation(pentity->getMesh(), vertex_count, vertices, index_count, indices,
pentity->getParentNode()->_getDerivedPosition(),
pentity->getParentNode()->_getDerivedOrientation(),
pentity->getParentNode()->getScale());
// test for hitting individual triangles on the mesh
bool new_closest_found = false;
for (int i = 0; i < static_cast<int>(index_count); i += 3)
{
// check for a hit against this triangle
std::pair<bool, Ogre::Real> hit = Ogre::Math::intersects(ray, vertices[indices[i]],
vertices[indices[i+1]], vertices[indices[i+2]], true, false);
// if it was a hit check if its the closest
if (hit.first)
{
if ((closest_distance < 0.0f) ||
(hit.second < closest_distance))
{
// this is the closest so far, save it off
closest_distance = hit.second;
new_closest_found = true;
}
}
}
// free the verticies and indicies memory
delete[] vertices;
delete[] indices;
// if we found a new closest raycast for this object, update the
// closest_result before moving on to the next object.
if (new_closest_found)
{
closest_result = ray.getPoint(closest_distance);
}
}
}
// return the result
if (closest_distance >= 0.0f)
{
// raycast success
result.collided = true;
result.position = closest_result;
result.distance = closest_distance;
}
else
{
// raycast failed
result.collided = false;
}
}
