private void ClimbOverObstacles()
{
if (Collider.FarseerBody.ContactList == null || Math.Abs(movement.X) < 0.01f)
{
return;
}
//check if the collider is touching a suitable obstacle to climb over
Vector2?handle = null;
FarseerPhysics.Dynamics.Contacts.ContactEdge ce = Collider.FarseerBody.ContactList;
while (ce != null && ce.Contact != null)
{
if (ce.Contact.Enabled && ce.Contact.IsTouching && ce.Contact.FixtureA.CollisionCategories.HasFlag(Physics.CollisionWall))
{
Vector2 contactNormal;
FarseerPhysics.Common.FixedArray2 <Vector2> contactPos;
ce.Contact.GetWorldManifold(out contactNormal, out contactPos);
//only climb if moving towards the obstacle
if (Math.Sign(contactPos[0].X - Collider.SimPosition.X) == Math.Sign(movement.X) &&
(handle == null || contactPos[0].Y > ((Vector2)handle).Y))
{
handle = contactPos[0];
}
}
ce = ce.Next;
}
if (handle == null)
{
return;
}
float colliderBottomY = GetColliderBottom().Y;
//the contact point should be higher than the bottom of the collider
if (((Vector2)handle).Y < colliderBottomY + 0.01f ||
((Vector2)handle).Y > Collider.SimPosition.Y)
{
return;
}
//find the height of the floor below the torso
//(if moving towards towards an obstacle that's low enough to climb over, the torso should be above it)
float obstacleY = GetFloorY(GetLimb(LimbType.Torso));
if (obstacleY > colliderBottomY)
{
//higher vertical velocity for taller obstacles
Collider.LinearVelocity += Vector2.UnitY * (((Vector2)handle).Y - colliderBottomY + 0.01f) * 50;
onGround = true;
}
}
/// <summary>
/// wakes any contacting bodies. Useful when creating a fixture or changing something that won't trigger the bodies to wake themselves
/// such as Circle.center.
/// </summary>
protected void WakeAnyContactingBodies()
{
Body body = this.GetComponent <FSRigidBody>().Body;
FarseerPhysics.Dynamics.Contacts.ContactEdge contactEdge = body.ContactList;
while (contactEdge != null)
{
FarseerPhysics.Dynamics.Contacts.Contact contact = contactEdge.Contact;
if (contact.FixtureA == _fixture || contact.FixtureB == _fixture)
{
contact.FixtureA.Body.IsAwake = true;
contact.FixtureB.Body.IsAwake = true;
}
contactEdge = contactEdge.Next;
}
}
public FSCollisionShape SetRestitution(float restitution)
{
_fixtureDef.Restitution = restitution;
if (_fixture != null)
{
_fixture.Restitution = restitution;
Body body = this.GetComponent <FSRigidBody>().Body;
FarseerPhysics.Dynamics.Contacts.ContactEdge contactEdge = body.ContactList;
while (contactEdge != null)
{
FarseerPhysics.Dynamics.Contacts.Contact contact = contactEdge.Contact;
if (contact.FixtureA == _fixture || contact.FixtureB == _fixture)
{
contact.ResetRestitution();
}
contactEdge = contactEdge.Next;
}
}
return(this);
}
