public bool Grab(Body other)
{
if (!IsGrabbed(other) && GrabbedComponents.Count < MaxGrabs)
{
Matrix m = Matrix.Identity;
m = GlobalTransform;
m.Translation = GlobalTransform.Translation + new Vector3(0, 0.0f, 0.5f);
other.GlobalTransform = m;
GrabbedItem item = new GrabbedItem
{
Component = other,
LocalTransform = Matrix.Invert(GlobalTransform) * other.GlobalTransform
};
GrabbedComponents.Add(item);
other.LocalTransform = item.LocalTransform;
AddChild(other);
return(true);
}
else
{
return(false);
}
}
private void RemoveComponent(Body component)
{
int i = 0;
int index = -1;
foreach (GrabbedItem grabbed in GrabbedComponents)
{
if (grabbed.Component == component)
{
index = i;
break;
}
i++;
}
if (index >= 0)
{
GrabbedComponents.RemoveAt(index);
}
}
public bool IsGrabbed(Body component)
{
return(GrabbedComponents.Any(item => item.Component == component));
}
public Body GetFirstGrab()
{
return(GrabbedComponents.Count <= 0 ? null : GrabbedComponents.First().Component);
}
