protected void _SetupForce(Force force, ref ForceInstance fi)
{
Assert.Fatal(SceneObject != null, "Cannot set up force before adding to scene");
SceneObject.RegisterInterface(this, fi._strength);
fi._strength.Value = force.InitialStrength;
if (force.LinkName != null && force.LinkName != String.Empty)
{
fi._linkPosition = SceneObject.Components.GetInterface<ValueInterface<Vector2>>("vector2", force.LinkName);
fi._linkRotation = SceneObject.Components.GetInterface<ValueInterface<float>>("float", force.LinkName);
}
}
/// <summary>
/// Add a new force to this object. Force will continue to be applied until RemoveForce
/// is called for the force.
/// </summary>
/// <param name="force">Force to applye.</param>
public void AddForce(Force force)
{
_forces.Add(force);
ForceInstance fi = new ForceInstance();
fi._strength = new ValueInPlaceInterface<float>();
if (SceneObject != null)
_SetupForce(force, ref fi);
_forceInstances.Add(fi);
}
protected void _GetForceData(Force force, ForceInstance fi, out Vector2 offset, out Vector2 direction)
{
offset = SceneObject.GetWorldLinkPosition(fi._linkPosition, fi._linkRotation, force.Offset) - SceneObject.Position;
float dirRot;
if (force.UseLinkDirection)
{
dirRot = SceneObject.GetWorldLinkRotation(fi._linkRotation, force.RotationOffset);
}
else
{
dirRot = force.ConstantDirection;
if (!force.ConstantDirectionIsWorldSpace)
dirRot += SceneObject.Rotation;
dirRot = (dirRot + force.RotationOffset) % 360.0f;
}
direction = T2DVectorUtil.VectorFromAngle(dirRot);
}
