/// <summary>
/// The drag entity.
/// </summary>
/// <param name="projectionMatrix">
/// The projection matrix.
/// </param>
/// <param name="viewMatrix">
/// The view matrix.
/// </param>
/// <param name="terrain">
/// The terrain.
/// </param>
public static void DragEntity(GraphicsDevice device, Matrix projectionMatrix, Matrix viewMatrix, ITerrain terrain)
{
if (!HasPicked())
{
return;
}
Vector3 position = RayCaster.GetTerrainPoint(device, projectionMatrix, viewMatrix, terrain);
EntityPicked.Position = position;
}
/// <summary>
/// The pick entity.
/// </summary>
/// <param name="projectionMatrix">
/// The projection matrix.
/// </param>
/// <param name="viewMatrix">
/// The view matrix.
/// </param>
/// <param name="entities">
/// The entities.
/// </param>
public static void PickEntity(
GraphicsDevice device,
Matrix projectionMatrix,
Matrix viewMatrix,
IEnumerable <IEntity> entities)
{
if (HasPicked())
{
PlaceEntity();
}
EntityPicked = RayCaster.CastToEntities(device, projectionMatrix, viewMatrix, entities);
if (HasPicked())
{
EntityPicked.IsHighlighted = true;
}
}
public static void SelectEntity(
GraphicsDevice device,
Matrix projectionMatrix,
Matrix viewMatrix,
IEnumerable <IEntity> entities)
{
if (HasSelected())
{
EntitySelected.IsHighlighted = false;
}
EntitySelected = RayCaster.CastToEntities(device, projectionMatrix, viewMatrix, entities);
if (HasSelected())
{
EntitySelected.IsHighlighted = true;
}
}
