glm::mat4 getModelTransform(const Json::Value &model_desc) {
glm::mat4 ret(1.f);
if (!model_desc.isMember("transform")) {
return ret;
}
Json::Value transform_desc = model_desc["transform"];
if (transform_desc.isMember("origin")) {
ret = glm::translate(ret, -toVec3(transform_desc["origin"]));
}
if (transform_desc.isMember("up")) {
glm::vec3 up = glm::normalize(
toVec3(transform_desc["up"]));
glm::vec3 forward = glm::normalize(
toVec3(must_have_idx(transform_desc, "forward")));
glm::vec3 right = glm::cross(up, forward);
glm::vec4 cols[] = {
glm::vec4(forward, 0.f),
glm::vec4(right, 0.f),
glm::vec4(up, 0.f),
};
for (int i = 0; i < 3; i++) {
ret[i] = cols[i];
}
}
if (transform_desc.isMember("scale")) {
ret = glm::scale(ret, glm::vec3(transform_desc["scale"].asFloat()));
}
return ret;
}
glm::vec3 Object::nextPosOf(QTProfile* terrain) {
if (terrain->node == NULL) {
return glm::vec3(0.0f);
}
int using_buffer_data_index = 0;
glm::vec3 using_buffer_dataNormal = terrain->getResultNormalFromCoord(calcCoordFromPos(position + toVec3(using_vertex_offset)), using_vertex, &using_buffer_data_index);
glm::vec3 facePoint_to_pos_vector = position - using_vertex[using_buffer_data_index];
if (glm::dot(facePoint_to_pos_vector, using_buffer_dataNormal) < 0.0f) {
position += -velocity * timeStep;
velocity = glm::reflect(velocity, using_buffer_dataNormal) * 0.9f;
} else {
velocity += gravity * timeStep * glm::normalize(-position - toVec3(using_vertex_offset));
position += velocity * timeStep;
}
return position;
}
void renderEntityFromJSON(GameEntity *e, const Json::Value &v) {
invariant(e, "must have entity to render to");
if (v.isMember("alive")) {
for (auto &sample : v["alive"]) {
e->setAlive(sample[0].asFloat(), sample[1].asBool());
}
}
if (v.isMember("model")) {
for (auto &sample : v["model"]) {
e->setModelName(sample[1].asString());
}
}
if (v.isMember("properties")) {
for (auto &sample : v["properties"]) {
for (auto &prop : sample[1]) {
e->addProperty(prop.asInt());
}
}
}
if (v.isMember("pid")) {
for (auto &sample : v["pid"]) {
e->setPlayerID(sample[0].asFloat(), toID(sample[1]));
}
}
if (v.isMember("tid")) {
for (auto &sample : v["tid"]) {
e->setTeamID(sample[0].asFloat(), toID(sample[1]));
}
}
if (v.isMember("pos")) {
for (auto &sample : v["pos"]) {
e->setPosition(sample[0].asFloat(), toVec2(sample[1]));
}
}
if (v.isMember("size")) {
for (auto &sample : v["size"]) {
e->setSize(sample[0].asFloat(), toVec3(sample[1]));
}
}
if (v.isMember("angle")) {
for (auto &sample : v["angle"]) {
e->setAngle(sample[0].asFloat(), sample[1].asFloat());
}
}
if (v.isMember("sight")) {
for (auto &sample : v["sight"]) {
e->setSight(sample[0].asFloat(), sample[1].asFloat());
}
}
if (v.isMember("visible")) {
for (auto &sample : v["visible"]) {
float t = sample[0].asFloat();
VisibilitySet set;
for (auto pid : sample[1]) {
set.insert(toID(pid));
}
e->setVisibilitySet(t, set);
}
}
if (v.isMember("actions")) {
for (auto &sample : v["actions"]) {
float t = sample[0].asFloat();
std::vector<UIAction> actions;
for (auto &action_json : sample[1]) {
auto uiaction = UIActionFromJSON(action_json);
uiaction.owner_id = e->getGameID();
actions.push_back(uiaction);
}
if (!actions.empty()) {
e->setActions(t, actions);
}
}
}
if (v.isMember("ui_info")) {
for (auto &&sample : v["ui_info"]) {
const float t = sample[0].asFloat();
GameEntity::UIInfo uiinfo = UIInfoFromJSON(sample[1]);
e->setUIInfo(t, uiinfo);
}
}
}
SimpleVec3d SimpleVec3d::rotateBy(SimpleVec3d axis, float angle)
{
return SimpleVec3d(glm::rotate(toVec3(), angle, axis.toVec3()));
}
Entity SceneLoader::instantiate(Json def, Resources& resources, const string& pathContext)
{
ASSERT(def.is_object());
if (def["prefab"].is_string()) {
const string& prefabName = def["prefab"].string_value();
auto prefabIter = prefabs.find(prefabName);
if (prefabIter != prefabs.end()) {
def = assign(prefabIter->second, def);
} else if (endsWith(prefabName, ".json")) {
string err;
Json extPrefab = Json::parse(resources.getText(resolvePath(pathContext, prefabName), Resources::NO_CACHE), err);
if (!err.empty()) {
logError("Failed to parse prefab \"%s\": %s", prefabName.c_str(), err.c_str());
} else {
def = assign(extPrefab, def);
prefabs[prefabName] = extPrefab;
}
} else {
logError("Could not find prefab \"%s\"", prefabName.c_str());
}
}
Entity entity = world->create();
if (def["name"].is_string()) {
entity.tag(def["name"].string_value());
#ifdef USE_DEBUG_NAMES
DebugInfo info;
info.name = def["name"].string_value();
entity.add<DebugInfo>(info);
} else {
static uint debugId = 0;
DebugInfo info;
if (def["prefab"].is_string())
info.name = def["prefab"].string_value() + "#";
else if (def["geometry"].is_string())
info.name = def["geometry"].string_value() + "#";
else info.name = "object#";
info.name += std::to_string(debugId++);
entity.tag(info.name);
entity.add<DebugInfo>(info);
#endif
}
// Parse transform
if (!def["position"].is_null() || !def["rotation"].is_null() || !def["scale"].is_null() || !def["geometry"].is_null()) {
Transform transform;
setVec3(transform.position, def["position"]);
setVec3(transform.scale, def["scale"]);
if (!def["rotation"].is_null()) {
const Json& rot = def["rotation"];
if (rot.is_array() && rot.array_items().size() == 4)
transform.rotation = quat(rot[3].number_value(), rot[0].number_value(), rot[1].number_value(), rot[2].number_value());
else transform.rotation = quat(toVec3(rot));
}
entity.add(transform);
}
// Parse light
const Json& lightDef = def["light"];
if (!lightDef.is_null()) {
Light light;
const string& lightType = lightDef["type"].string_value();
if (lightType == "ambient") light.type = Light::AMBIENT_LIGHT;
else if (lightType == "point") light.type = Light::POINT_LIGHT;
else if (lightType == "directional") light.type = Light::DIRECTIONAL_LIGHT;
else if (lightType == "spot") light.type = Light::SPOT_LIGHT;
else if (lightType == "area") light.type = Light::AREA_LIGHT;
else if (lightType == "hemisphere") light.type = Light::HEMISPHERE_LIGHT;
else logError("Unknown light type \"%s\"", lightType.c_str());
setColor(light.color, lightDef["color"]);
if (!def["position"].is_null())
light.position = toVec3(def["position"]);
if (!lightDef["direction"].is_null())
light.direction = toVec3(lightDef["direction"]);
setNumber(light.distance, lightDef["distance"]);
setNumber(light.decay, lightDef["decay"]);
entity.add(light);
numLights++;
}
if (!def["geometry"].is_null()) {
Model model;
parseModel(model, def, resources, pathContext);
entity.add(model);
numModels++;
}
// Patch bounding box
// TODO: Bounding box is not correct if scale changed at runtime
if (entity.has<Model>() && entity.has<Transform>()) {
Model& model = entity.get<Model>();
const Transform& trans = entity.get<Transform>();
model.bounds.min = model.lods[0].geometry->bounds.min * trans.scale;
model.bounds.max = model.lods[0].geometry->bounds.max * trans.scale;
model.bounds.radius = model.lods[0].geometry->bounds.radius * glm::compMax(trans.scale);
}
// Parse body (needs to be after geometry, transform, bounds...)
if (!def["body"].is_null()) {
const Json& bodyDef = def["body"];
ASSERT(bodyDef.is_object());
ASSERT(entity.has<Model>());
ASSERT(entity.has<Transform>());
const Model& model = entity.get<Model>();
const Transform& transform = entity.get<Transform>();
float mass = 0.f;
setNumber(mass, bodyDef["mass"]);
btCollisionShape* shape = NULL;
const string& shapeStr = bodyDef["shape"].string_value();
vec3 extents = model.bounds.max - model.bounds.min;
if (shapeStr == "box") {
shape = new btBoxShape(convert(extents * 0.5f));
} else if (shapeStr == "sphere") {
shape = new btSphereShape(model.bounds.radius);
} else if (shapeStr == "cylinder") {
shape = new btCylinderShape(convert(extents * 0.5f));
} else if (shapeStr == "capsule") {
float r = glm::max(extents.x, extents.z) * 0.5f;
shape = new btCapsuleShape(r, extents.y);
} else if (shapeStr == "trimesh") {
Geometry* colGeo = nullptr;
if (bodyDef["geometry"].is_string()) {
colGeo = resources.getGeometry(bodyDef["geometry"].string_value());
} else {
if (bodyDef["geometry"].is_array())
logError("LODs not supported for collision mesh.");
colGeo = model.lods[0].geometry;
}
if (!colGeo->collisionMesh)
colGeo->generateCollisionTriMesh();
if (mass <= 0.f) { // Static mesh
shape = new btBvhTriangleMeshShape(colGeo->collisionMesh, true);
} else {
shape = new btGImpactMeshShape(colGeo->collisionMesh);
static_cast<btGImpactMeshShape*>(shape)->updateBound();
}
} else {
logError("Unknown shape %s", shapeStr.c_str());
}
ASSERT((shapeStr == "trimesh" || bodyDef["geometry"].is_null()) && "Trimesh shape type required if body.geometry is specified");
ASSERT(shape);
btVector3 inertia(0, 0, 0);
shape->calculateLocalInertia(mass, inertia);
btRigidBody::btRigidBodyConstructionInfo info(mass, NULL, shape, inertia);
info.m_startWorldTransform = btTransform(convert(transform.rotation), convert(transform.position));
setNumber(info.m_friction, bodyDef["friction"]);
setNumber(info.m_rollingFriction, bodyDef["rollingFriction"]);
setNumber(info.m_restitution, bodyDef["restitution"]);
if (bodyDef["noSleep"].bool_value()) {
info.m_linearSleepingThreshold = 0.f;
info.m_angularSleepingThreshold = 0.f;
}
entity.add<btRigidBody>(info);
numBodies++;
btRigidBody& body = entity.get<btRigidBody>();
if (!bodyDef["angularFactor"].is_null())
body.setAngularFactor(convert(toVec3(bodyDef["angularFactor"])));
if (!bodyDef["linearFactor"].is_null())
body.setLinearFactor(convert(toVec3(bodyDef["linearFactor"])));
if (bodyDef["noGravity"].bool_value())
body.setFlags(body.getFlags() | BT_DISABLE_WORLD_GRAVITY);
body.setUserIndex(entity.get_id());
if (world->has_system<PhysicsSystem>())
world->get_system<PhysicsSystem>().add(entity);
}
if (!def["animation"].is_null()) {
ASSERT(entity.has<Model>());
const Json& animDef = def["animation"];
BoneAnimation anim;
setNumber(anim.speed, animDef["speed"]);
entity.add(anim);
if (animDef["play"].is_bool() && animDef["play"].bool_value())
world->get_system<AnimationSystem>().play(entity);
else world->get_system<AnimationSystem>().stop(entity);
}
if (def["trackGround"].bool_value()) {
ASSERT(entity.has<btRigidBody>());
entity.add<GroundTracker>();
}
if (def["trackContacts"].bool_value()) {
ASSERT(entity.has<btRigidBody>());
entity.add<ContactTracker>();
}
if (def["triggerVolume"].is_object()) {
ASSERT(entity.has<Transform>());
const Json& triggerDef = def["triggerVolume"];
TriggerVolume& trigger = entity.add<TriggerVolume>();
setNumber(trigger.times, triggerDef["times"]);
setNumber(trigger.bounds.radius, triggerDef["radius"]);
setVec3(trigger.bounds.min, triggerDef["min"]);
setVec3(trigger.bounds.min, triggerDef["max"]);
if (triggerDef["receiver"].is_string())
trigger.receiverModule = id::hash(triggerDef["receiver"].string_value());
if (triggerDef["enterMessage"].is_string())
trigger.enterMessage = id::hash(triggerDef["enterMessage"].string_value());
else if (triggerDef["enterMessage"].is_number())
trigger.enterMessage = triggerDef["enterMessage"].number_value();
if (triggerDef["exitMessage"].is_string())
trigger.exitMessage = id::hash(triggerDef["exitMessage"].string_value());
else if (triggerDef["exitMessage"].is_number())
trigger.exitMessage = triggerDef["exitMessage"].number_value();
if (triggerDef["groups"].is_number())
trigger.groups = 1 << (uint)triggerDef["groups"].number_value();
else if (triggerDef["groups"].is_array()) {
for (const auto& item : triggerDef["groups"].array_items())
trigger.groups |= 1 << (uint)item.number_value();
}
}
if (def["triggerGroup"].is_number()) {
ASSERT(entity.has<Transform>());
entity.add<TriggerGroup>().group = 1 << (uint)def["triggerGroup"].number_value();
}
if (!def["moveSound"].is_null()) {
const Json& soundDef = def["moveSound"];
MoveSound sound;
if (soundDef["event"].is_string())
sound.event = id::hash(soundDef["event"].string_value());
setNumber(sound.stepLength, soundDef["step"]);
ASSERT(sound.event);
ASSERT(entity.has<Transform>());
sound.prevPos = entity.get<Transform>().position;
entity.add(sound);
}
if (!def["contactSound"].is_null()) {
const Json& soundDef = def["contactSound"];
ContactSound sound;
if (soundDef["event"].is_string())
sound.event = id::hash(soundDef["event"].string_value());
ASSERT(sound.event);
ASSERT(entity.has<Transform>());
ASSERT(entity.has<ContactTracker>());
entity.add(sound);
}
return entity;
}
osg::Node* createNodeForActor( PxRigidActor* actor )
{
if ( !actor ) return NULL;
std::vector<PxShape*> shapes( actor->getNbShapes() );
osg::ref_ptr<osg::MatrixTransform> transform = new osg::MatrixTransform;
transform->setMatrix( toMatrix(PxMat44(actor->getGlobalPose())) );
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
transform->addChild( geode.get() );
PxU32 num = actor->getShapes( &(shapes[0]), actor->getNbShapes() );
for ( PxU32 i=0; i<num; ++i )
{
PxShape* shape = shapes[i];
osg::Matrix localMatrix = toMatrix( PxMat44(actor->getGlobalPose()) );
osg::Vec3 localPos = toVec3( shape->getLocalPose().p );
osg::Quat localQuat(shape->getLocalPose().q.x, shape->getLocalPose().q.y,
shape->getLocalPose().q.z, shape->getLocalPose().q.w);
switch ( shape->getGeometryType() )
{
case PxGeometryType::eSPHERE:
{
PxSphereGeometry sphere;
shape->getSphereGeometry( sphere );
osg::Sphere* sphereShape = new osg::Sphere(localPos, sphere.radius);
geode->addDrawable( new osg::ShapeDrawable(sphereShape) );
}
break;
case PxGeometryType::ePLANE:
// TODO
break;
case PxGeometryType::eCAPSULE:
{
PxCapsuleGeometry capsule;
shape->getCapsuleGeometry( capsule );
osg::Capsule* capsuleShape = new osg::Capsule(
localPos, capsule.radius, capsule.halfHeight * 2.0f);
capsuleShape->setRotation( localQuat );
geode->addDrawable( new osg::ShapeDrawable(capsuleShape) );
}
break;
case PxGeometryType::eBOX:
{
PxBoxGeometry box;
shape->getBoxGeometry( box );
osg::Box* boxShape = new osg::Box(localPos,
box.halfExtents[0] * 2.0f, box.halfExtents[1] * 2.0f, box.halfExtents[2] * 2.0f);
boxShape->setRotation( localQuat );
geode->addDrawable( new osg::ShapeDrawable(boxShape) );
}
break;
case PxGeometryType::eCONVEXMESH:
{
PxConvexMeshGeometry convexMeshGeom;
shape->getConvexMeshGeometry( convexMeshGeom );
// TODO: consider convexMeshGeom.scale
PxConvexMesh* convexMesh = convexMeshGeom.convexMesh;
if ( convexMesh )
{
/*for ( unsigned int i=0; i<convexMesh->getNbPolygons(); ++i )
{
}*/
// TODO
}
}
break;
case PxGeometryType::eTRIANGLEMESH:
{
PxTriangleMeshGeometry triangleMeshGeom;
shape->getTriangleMeshGeometry( triangleMeshGeom );
// TODO: consider triangleMeshGeom.scale
PxTriangleMesh* triangleMesh = triangleMeshGeom.triangleMesh;
if ( triangleMesh )
{
osg::ref_ptr<osg::Vec3Array> va = new osg::Vec3Array( triangleMesh->getNbVertices() );
for ( unsigned int i=0; i<va->size(); ++i )
(*va)[i] = toVec3( *(triangleMesh->getVertices() + i) ) * localMatrix;
osg::ref_ptr<osg::DrawElements> de;
if ( triangleMesh->getTriangleMeshFlags()&PxTriangleMeshFlag::eHAS_16BIT_TRIANGLE_INDICES )
{
osg::DrawElementsUShort* de16 = new osg::DrawElementsUShort(GL_TRIANGLES);
de = de16;
const PxU16* indices = (const PxU16*)triangleMesh->getTriangles();
for ( unsigned int i=0; i<triangleMesh->getNbTriangles(); ++i )
{
de16->push_back( indices[3 * i + 0] );
de16->push_back( indices[3 * i + 1] );
de16->push_back( indices[3 * i + 2] );
}
}
else
{
osg::DrawElementsUInt* de32 = new osg::DrawElementsUInt(GL_TRIANGLES);
de = de32;
const PxU32* indices = (const PxU32*)triangleMesh->getTriangles();
for ( unsigned int i=0; i<triangleMesh->getNbTriangles(); ++i )
{
de32->push_back( indices[3 * i + 0] );
de32->push_back( indices[3 * i + 1] );
de32->push_back( indices[3 * i + 2] );
}
}
geode->addDrawable( createGeometry(va.get(), NULL, NULL, de.get()) );
}
}
break;
case PxGeometryType::eHEIGHTFIELD:
{
PxHeightFieldGeometry hfGeom;
shape->getHeightFieldGeometry( hfGeom );
// TODO: consider hfGeom.*scale
PxHeightField* heightField = hfGeom.heightField;
if ( heightField )
{
// TODO
}
}
break;
}
}
return transform.release();
}
kvs::Vec4 RGBAColor::toVec4() const
{
return kvs::Vec4( toVec3(), m_opacity );
}
Geometry::SRT toSRT(const btTransform& t){
return Geometry::SRT(toVec3(t.getOrigin()), toMatrix3x3(t.getBasis()),1.0);
}
Geometry::Matrix3x3 toMatrix3x3(const btMatrix3x3& btm){
Geometry::Matrix3x3 tmp;
for(int i = 0; i<3; ++i)
tmp.setRow(i,toVec3(btm.getRow(i)));
return tmp;
}