public override CollisionHull CreateCollisionHull(NewtonDynamics.WorldBase world)
{
// Get points
if (this.Vertices == null)
{
CreateGeometry(this.IsFinalModel);
}
Vector3D scale = this.Scale;
double halfThick = THICKNESS * .5d * scale.Z;
List <Point3D> points = new List <Point3D>();
points.AddRange(this.Vertices.Select(o => new Point3D(o.X * scale.X, o.Y * scale.Y, -halfThick)));
points.AddRange(this.Vertices.Select(o => new Point3D(o.X * scale.X, o.Y * scale.Y, halfThick)));
// Transform
Transform3DGroup transform = new Transform3DGroup();
//transform.Children.Add(new ScaleTransform3D(this.Scale)); // it ignores scale
transform.Children.Add(new RotateTransform3D(new QuaternionRotation3D(this.Orientation)));
transform.Children.Add(new TranslateTransform3D(this.Position.ToVector()));
// Exit Function
return(CollisionHull.CreateConvexHull(world, 0, points, transform.Value));
}
public virtual CollisionHull CreateCollisionHull(World world)
{
if (_isLooseProps)
{
Transform3DGroup transform = new Transform3DGroup();
//transform.Children.Add(new ScaleTransform3D(this.Scale)); // it ignores scale
transform.Children.Add(new RotateTransform3D(new QuaternionRotation3D(_orientation)));
transform.Children.Add(new TranslateTransform3D(_position.ToVector()));
return(CollisionHull.CreateConvexHull(world, 0, _convexPoints, transform.Value));
}
else
{
return(_part.CreateCollisionHull(world));
}
}
public Mineral(MineralType mineralType, Point3D position, double volumeInCubicMeters, World world, int materialID, SharedVisuals sharedVisuals, double densityMult = 1d, double scale = 1d, decimal credits = 0m)
{
this.MineralType = mineralType;
this.VolumeInCubicMeters = volumeInCubicMeters;
this.Scale = scale;
this.Credits = credits;
this.Model = GetNewVisual(mineralType, sharedVisuals, scale);
// Model Visual
ModelVisual3D visual = new ModelVisual3D(); // this is the expensive one, so as few of these should be made as possible
visual.Content = this.Model;
this.Density = GetSettingsForMineralType(mineralType).Density *densityMult;
#region Physics Body
Transform3DGroup transform = new Transform3DGroup();
transform.Children.Add(new RotateTransform3D(new QuaternionRotation3D(Math3D.GetRandomRotation())));
transform.Children.Add(new TranslateTransform3D(position.ToVector()));
ScaleTransform3D scaleTransform = new ScaleTransform3D(scale, scale, scale);
Point3D[] hullPoints = UtilityWPF.GetPointsFromMesh((MeshGeometry3D)sharedVisuals.GetMineralMesh(mineralType), scaleTransform);
using (CollisionHull hull = CollisionHull.CreateConvexHull(world, 0, hullPoints))
{
this.PhysicsBody = new Body(hull, transform.Value, this.Density * volumeInCubicMeters, new Visual3D[] { visual });
this.PhysicsBody.MaterialGroupID = materialID;
this.PhysicsBody.LinearDamping = .01f;
this.PhysicsBody.AngularDamping = new Vector3D(.01f, .01f, .01f);
//this.PhysicsBody.ApplyForce += new BodyForceEventHandler(Body_ApplyForce);
}
#endregion
// Calculate radius
Point3D aabbMin, aabbMax;
this.PhysicsBody.GetAABB(out aabbMin, out aabbMax);
this.Radius = (aabbMax - aabbMin).Length / 2d;
this.CreationTime = DateTime.UtcNow;
}
