private static void drawEdge(EdgeCollider2D edge, Color color)
{
Vector2[] vertices = edge.GetWorldPoints();
if (vertices == null)
{
return;
}
for (int i = 0; i < vertices.Length; i++)
{
int ii = (i + 1) % vertices.Length;
// Draw edge
if (ii != 0)
{
Gizmos.color = color;
Gizmos.DrawLine(vertices[i], vertices[ii]);
}
// Draw vertex
if (Selection.activeGameObject == edge.gameObject)
{
Gizmos.color = ColorPalletReader.GetVertexColor(ColorStates.PATH);
if (i == _selectedVertex)
{
Gizmos.color = ColorPalletReader.GetVertexColor(ColorStates.SELECTED);
}
Gizmos.DrawSphere(vertices[i], BrushSettingsWindow.VertexSize);
if (BrushSettingsWindow.ShowVertexInfo == true)
{
Handles.Label(vertices[i] + new Vector2(0.1f, 0.4f), edge.GetLocalPoint(vertices[i]).ToString());
}
}
}
}
/// <summary>
/// Tries to select a vertex at the given position. Takes
/// specified selection radius into account. Returns the
/// index of the vertex within the given path. Returns
/// -1 if no vertex could be selected.
/// </summary>
/// <param name="position">The position at which the vertex should be selected</param>
/// <returns>Returns the index of the selected vertex within the edge. (-1 if selection failed)</returns>
public static int TrySelectVertex(this EdgeCollider2D edge, Vector2 position)
{
var vertices = edge.GetWorldPoints();
for (int i = 0; i < vertices.Length; i++)
{
var vertex = vertices[i];
if ((vertex - position).magnitude <= BrushSettingsWindow.VertexSize)
{
return(i);
}
}
return(-1);
}
