/// <summary>
/// Finds all <see cref="PolygonCollider2D"/>s in <paramref name="objectContainingObstacles"/> (and its children)
/// and creates corresponding 3D colliders.
/// If a <see cref="PolygonCollider2D"/> instance is found but "usedByComposite" is set to true, the collider will be ignored by this function.
/// </summary>
/// <param name="objectContainingObstacles">Object to search for colliders in.</param>
/// <param name="parentToAttachTemporaryObjectsTo">Object which will be made the parent of the created 3D colliders.</param>
/// <returns></returns>
private static IEnumerable <GameObject> ProcessPolygonColliders(GameObject objectContainingObstacles, Transform parentToAttachTemporaryObjectsTo)
{
var createdGameObjects = new List <GameObject>();
var polyColliders = objectContainingObstacles.GetComponentsInChildren <PolygonCollider2D>();
foreach (var col in polyColliders)
{
if (!col.usedByComposite)
{
createdGameObjects.Add(MeshFromPolygonCreator.CreateMesh(col.points, col.transform, parentToAttachTemporaryObjectsTo));
}
}
return(createdGameObjects);
}
/// <summary>
/// Finds all <see cref="CompositeCollider2D"/>s in <paramref name="objectContainingObstacles"/> (and its children)
/// and creates corresponding 3D colliders.
/// </summary>
/// <param name="objectContainingObstacles">Object to search for colliders in.</param>
/// <param name="parentToAttachTemporaryObjectsTo">Object which will be made the parent of the created 3D colliders.</param>
/// <returns></returns>
private static IEnumerable <GameObject> ProcessCompositeColliders(GameObject objectContainingObstacles, Transform parentToAttachTemporaryObjectsTo)
{
var createdGameObjects = new List <GameObject>();
var compositeColliders = objectContainingObstacles.GetComponentsInChildren <CompositeCollider2D>();
foreach (var col in compositeColliders)
{
for (var i = 0; i < col.pathCount; i++)
{
var pathNodes = new Vector2[col.GetPathPointCount(i)];
col.GetPath(i, pathNodes);
createdGameObjects.Add(MeshFromPolygonCreator.CreateMesh(pathNodes, col.transform, parentToAttachTemporaryObjectsTo));
}
}
return(createdGameObjects);
}