/** If a trajectory has only one node, the player is not displayed. To fix that situation, the node is duplicated with a slightly different location.
* Both old and new nodes are linked through a side.
*
* @param scene
*/
public static void fixSingleNode(Scene scene)
{
Trajectory trajectory = scene.getTrajectory();
if (trajectory != null)
{
if (trajectory.getNodes().Count == 1)
{
Trajectory.Node node1 = trajectory.getNodes()[0];
trajectory.addNode(node1.getID() + "Dupl", node1.getX() + 1, node1.getY(), node1.getScale());
trajectory.addSide(node1.getID(), node1.getID() + "Dupl", 1);
}
}
}
/**
* Ensures that all nodes in a trajectory have a different location. If two nodes are found in the same position, first's x coordinate
* is incremented by 1 px. This is important as nodes with equal position makes the trajectory algorithm to crash.
* @param scene
*/
private static void fixNodesWithSameLocation(Scene scene)
{
Trajectory trajectory = scene.getTrajectory();
if (trajectory != null)
{
// Iterate through nodes.
for (int i = 0; i < trajectory.getNodes().Count; i++)
{
Trajectory.Node node1 = trajectory.getNodes()[i];
for (int j = 0; j < trajectory.getNodes().Count; j++)
{
Trajectory.Node node2 = trajectory.getNodes()[j];
if (i != j && node1.getX() == node2.getX() && node1.getY() == node2.getY())
{
node1.setValues(node1.getX() + 1, node1.getY(), node1.getScale());
j = 0;
}
}
}
}
}
/**
* Checks pairs of nodes with duplicate ids. One of the nodes is removed.
* @param nodes
*/
private static void fixDuplicateNodes(Scene scene)
{
Trajectory trajectory = scene.getTrajectory();
if (trajectory != null)
{
// Iterate through nodes.
for (int i = 0; i < trajectory.getNodes().Count; i++)
{
Trajectory.Node node1 = trajectory.getNodes()[i];
for (int j = 0; j < trajectory.getNodes().Count; j++)
{
Trajectory.Node node2 = trajectory.getNodes()[j];
if (i != j && node1.getID().Equals(node2.getID()))
{
trajectory.getNodes().RemoveAt(j);
i--; j--;
}
}
}
}
}
