void PathBehavior::LoadPath(RuntimeScene & scene)
{
if(localePaths.count(pathName) == 0)
{
if (runtimeScenesPathDatas == NULL)
runtimeScenesPathDatas = static_cast<RuntimeScenePathDatas*>(scene.GetBehaviorSharedData(name).get());
if(runtimeScenesPathDatas != NULL && runtimeScenesPathDatas->globalPaths.count(pathName) != 0)
path = std::vector<sf::Vector2f>(runtimeScenesPathDatas->globalPaths.at(pathName));
}
else
{
path = std::vector<sf::Vector2f>(GetPath(pathName));
}
isPathLoaded = true;
}
/**
* Prepare Box2D body, and set up also runtimeScenePhysicsDatasPtr.
*/
void PhysicsBehavior::CreateBody(const RuntimeScene & scene)
{
if ( runtimeScenesPhysicsDatas == NULL )
runtimeScenesPhysicsDatas = static_cast<RuntimeScenePhysicsDatas*>(scene.GetBehaviorSharedData(name).get());
//Create body from object
b2BodyDef bodyDef;
bodyDef.type = dynamic ? b2_dynamicBody : b2_staticBody;
bodyDef.position.Set((object->GetDrawableX()+object->GetWidth()/2)*runtimeScenesPhysicsDatas->GetInvScaleX(), -(object->GetDrawableY()+object->GetHeight()/2)*runtimeScenesPhysicsDatas->GetInvScaleY());
bodyDef.angle = -object->GetAngle()*b2_pi/180.0f; //Angles are inverted
bodyDef.angularDamping = angularDamping > 0.0f ? angularDamping : 0.0f;
bodyDef.linearDamping = linearDamping > 0.0f ? linearDamping : 0.0f;
bodyDef.bullet = isBullet;
bodyDef.fixedRotation = fixedRotation;
body = runtimeScenesPhysicsDatas->world->CreateBody(&bodyDef);
body->SetUserData(this);
//Setup body
if ( shapeType == Circle)
{
b2FixtureDef fixtureDef;
b2CircleShape circle;
circle.m_radius = (object->GetWidth()*runtimeScenesPhysicsDatas->GetInvScaleX()+
object->GetHeight()*runtimeScenesPhysicsDatas->GetInvScaleY())/4; //Radius is based on the average of height and width
if ( circle.m_radius <= 0 ) circle.m_radius = 1;
fixtureDef.shape = &circle;
fixtureDef.density = massDensity;
fixtureDef.friction = averageFriction;
fixtureDef.restitution = averageRestitution;
body->CreateFixture(&fixtureDef);
}
else if( shapeType == CustomPolygon && polygonCoords.size() > 2)
{
//Make a polygon triangulation to make possible to use a concave polygon and more than 8 edged polygons
std::vector<sf::Vector2f> resultOfTriangulation;
Triangulate::Process(polygonCoords, resultOfTriangulation);
//Iterate over all triangles
for(std::size_t i = 0; i < resultOfTriangulation.size() / 3; i++)
{
b2FixtureDef fixtureDef;
b2PolygonShape dynamicBox;
//Create vertices
b2Vec2 vertices[3];
std::size_t b = 0;
for(int a = 2; a >= 0; a--) //Box2D use another direction for vertices
{
if(polygonPositioning == OnOrigin)
{
vertices[b].Set((resultOfTriangulation.at(i*3 + a).x * GetPolygonScaleX() - object->GetWidth()/2 - (object->GetDrawableX() - object->GetX())) * runtimeScenesPhysicsDatas->GetInvScaleX(),
(((object->GetHeight() - (resultOfTriangulation.at(i*3 + a).y * GetPolygonScaleY())) - object->GetHeight()/2 + (object->GetDrawableY() - object->GetY())) * runtimeScenesPhysicsDatas->GetInvScaleY()));
}
/*else if(polygonPositioning == OnTopLeftCorner)
{
vertices[b].Set((resultOfTriangulation.at(i*3 + a).x * GetPolygonScaleX() - object->GetWidth()/2 ) * runtimeScenesPhysicsDatas->GetInvScaleX(),
(((object->GetHeight() - (resultOfTriangulation.at(i*3 + a).y * GetPolygonScaleY())) - object->GetHeight()/2) * runtimeScenesPhysicsDatas->GetInvScaleY()));
}*/
else if(polygonPositioning == OnCenter)
{
vertices[b].Set((resultOfTriangulation.at(i*3 + a).x * GetPolygonScaleX()) * runtimeScenesPhysicsDatas->GetInvScaleX(),
(((object->GetHeight() - (resultOfTriangulation.at(i*3 + a).y * GetPolygonScaleY())) - object->GetHeight()) * runtimeScenesPhysicsDatas->GetInvScaleY()));
}
b++;
}
dynamicBox.Set(vertices, 3);
fixtureDef.shape = &dynamicBox;
fixtureDef.density = massDensity;
fixtureDef.friction = averageFriction;
fixtureDef.restitution = averageRestitution;
body->CreateFixture(&fixtureDef);
}
}
else
{
b2FixtureDef fixtureDef;
b2PolygonShape dynamicBox;
dynamicBox.SetAsBox((object->GetWidth() > 0 ? object->GetWidth() : 1.0f)*runtimeScenesPhysicsDatas->GetInvScaleX()/2,
(object->GetHeight() > 0 ? object->GetHeight() : 1.0f)*runtimeScenesPhysicsDatas->GetInvScaleY()/2);
fixtureDef.shape = &dynamicBox;
fixtureDef.density = massDensity;
fixtureDef.friction = averageFriction;
fixtureDef.restitution = averageRestitution;
body->CreateFixture(&fixtureDef);
}
objectOldWidth = object->GetWidth();
objectOldHeight = object->GetHeight();
}
