public void OnDrawGizmosSelected()
{
// the editor will draw paths when force straight line is on
if( !forceStraightLinePath )
{
var spline = new Spline( nodes, useBezier, forceStraightLinePath );
if( closePath )
spline.closePath();
Gizmos.color = pathColor;
spline.drawGizmos( pathResolution, isInEditMode );
}
}
public override void OnInspectorGUI()
{
showEditModeToggle();
if (!_target.isInEditMode)
{
drawInstructions();
return;
}
if (_target.useBezier && _target.nodes.Count < 4)
{
_target.useBezier = false;
}
// what kind of handles shall we use?
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Use Standard Handles");
_target.useStandardHandles = EditorGUILayout.Toggle(_target.useStandardHandles);
EditorGUILayout.EndHorizontal();
// path name:
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Route Name");
_target.pathName = EditorGUILayout.TextField(_target.pathName);
EditorGUILayout.EndHorizontal();
if (_target.pathName == string.Empty)
{
_target.pathName = "route" + Random.Range(1, 100000);
}
// path color:
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Route Color");
_target.pathColor = EditorGUILayout.ColorField(_target.pathColor);
EditorGUILayout.EndHorizontal();
// force bezier:
GUI.enabled = !_target.forceStraightLinePath;
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Use Bezier Path");
EditorGUI.BeginChangeCheck();
_target.useBezier = EditorGUILayout.Toggle(_target.useBezier);
if (EditorGUI.EndChangeCheck() && _target.useBezier)
{
// validate
// make sure we have enough nodes to use a bezier. nodeCount - 1 must be divisible by 3
if (_target.nodes.Count < 4)
{
Debug.LogError("there must be at least 4 nodes to use a bezier");
_target.useBezier = false;
}
else
{
var excessNodes = (_target.nodes.Count - 1) % 3;
if (excessNodes > 0)
{
_target.nodes.RemoveRange(_target.nodes.Count - excessNodes, excessNodes);
Debug.LogWarning("trimming " + excessNodes + " from the node list to make a proper bezier spline");
}
}
}
EditorGUILayout.EndHorizontal();
GUI.enabled = true;
// force straight lines:
GUI.enabled = !_target.useBezier;
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Force Straight Line Path");
_target.forceStraightLinePath = EditorGUILayout.Toggle(_target.forceStraightLinePath);
EditorGUILayout.EndHorizontal();
GUI.enabled = true;
// close path. only relevant for node counts greater than 5
if (_target.nodes.Count < 5)
{
GUI.enabled = false;
}
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Close Path");
EditorGUI.BeginChangeCheck();
_target.closePath = EditorGUILayout.Toggle(_target.closePath);
if (EditorGUI.EndChangeCheck())
{
if (_target.closePath)
{
closeRoute();
}
}
EditorGUILayout.EndHorizontal();
GUI.enabled = true;
// resolution
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Editor Drawing Resolution");
_target.pathResolution = EditorGUILayout.IntSlider(_target.pathResolution, 2, 100);
EditorGUILayout.EndHorizontal();
EditorGUILayout.Separator();
// insert node - we need 3 or more nodes for insert to make sense
if (_target.nodes.Count > 2)
{
EditorGUILayout.BeginHorizontal();
GUI.enabled = _selectedNodeIndex != 0 && _selectedNodeIndex != -1;
if (GUILayout.Button("Insert Node Before Selected"))
{
insertNodeAtIndex(_selectedNodeIndex, false);
}
GUI.enabled = _selectedNodeIndex != _target.nodes.Count - 1 && _selectedNodeIndex != -1;
if (GUILayout.Button("Insert Node After Selected"))
{
insertNodeAtIndex(_selectedNodeIndex, true);
}
GUI.enabled = true;
EditorGUILayout.EndHorizontal();
}
// shift the start point to the origin
if (GUILayout.Button("Shift Path to Start at Origin"))
{
Undo.RecordObject(_target, "Path Vector Changed");
var offset = Vector3.zero;
// see what kind of path we are. the simplest case is just a straight line
var path = new Spline(_target.nodes, _target.useBezier, _target.forceStraightLinePath);
if (path.splineType == SplineType.StraightLine || path.splineType == SplineType.Bezier || _target.nodes.Count < 5)
{
offset = Vector3.zero - _target.nodes[0];
}
else
{
offset = Vector3.zero - _target.nodes[1];
}
for (var i = 0; i < _target.nodes.Count; i++)
{
_target.nodes[i] += offset;
}
GUI.changed = true;
}
// reverse
if (GUILayout.Button("Reverse Path"))
{
Undo.RecordObject(_target, "Path Vector Changed");
_target.nodes.Reverse();
GUI.changed = true;
}
// shifters. thse only make sense for straight line and catmull rom
if (_target.forceStraightLinePath || (_target.nodes.Count > 4 && !_target.useBezier))
{
GUILayout.BeginHorizontal();
if (GUILayout.Button("Shift Nodes Left"))
{
Undo.RecordObject(_target, "Path Vector Changed");
var firstItem = _target.nodes[0];
_target.nodes.RemoveAt(0);
_target.nodes.Add(firstItem);
GUI.changed = true;
}
if (GUILayout.Button("Shift Nodes Right"))
{
Undo.RecordObject(_target, "Path Vector Changed");
var lastItem = _target.nodes[_target.nodes.Count - 1];
_target.nodes.RemoveAt(_target.nodes.Count - 1);
_target.nodes.Insert(0, lastItem);
GUI.changed = true;
}
GUILayout.EndHorizontal();
}
if (GUILayout.Button("Clear Path"))
{
Undo.RecordObject(_target, "Path Vector Changed");
_target.nodes.Clear();
_target.nodes.Add(_target.transform.position);
_target.nodes.Add(_target.transform.position + new Vector3(5f, 5f));
GUI.changed = true;
}
if (GUILayout.Button("Move z-axis Values to 0"))
{
Undo.RecordObject(_target, "Path Vector Changed");
for (var i = 0; i < _target.nodes.Count; i++)
{
_target.nodes[i] = new Vector3(_target.nodes[i].x, _target.nodes[i].y, 0f);
}
GUI.changed = true;
}
// persist to disk
EditorGUILayout.Space();
EditorGUILayout.LabelField("Save to/Read from Disk");
EditorGUILayout.Space();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Serialize and Save Path");
if (GUILayout.Button("Save"))
{
var path = EditorUtility.SaveFilePanel("Save path", Application.dataPath + "/StreamingAssets", _target.pathName + ".asset", "asset");
if (path != string.Empty)
{
persistRouteToDisk(path);
// fetch the filename and set it as the routeName
_target.pathName = Path.GetFileName(path).Replace(".asset", string.Empty);
GUI.changed = true;
}
}
EditorGUILayout.EndHorizontal();
// load from disk
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Load saved path");
if (GUILayout.Button("Load"))
{
var path = EditorUtility.OpenFilePanel("Choose path to load", Path.Combine(Application.dataPath, "StreamingAssets"), "asset");
if (path != string.Empty)
{
if (!File.Exists(path))
{
EditorUtility.DisplayDialog("File does not exist", "Path couldn't find the file you specified", "Close");
}
else
{
_target.nodes = SplineAssetUtils.bytesToVector3List(File.ReadAllBytes(path));
_target.pathName = Path.GetFileName(path).Replace(".asset", string.Empty);
GUI.changed = true;
}
}
}
EditorGUILayout.EndHorizontal();
// node display
EditorGUILayout.Space();
_showNodeDetails = EditorGUILayout.Foldout(_showNodeDetails, "Show Node Values");
if (_showNodeDetails)
{
EditorGUI.indentLevel++;
for (int i = 0; i < _target.nodes.Count; i++)
{
_target.nodes[i] = EditorGUILayout.Vector3Field("Node " + (i + 1), _target.nodes[i]);
}
EditorGUI.indentLevel--;
}
drawInstructions();
// update and redraw:
if (GUI.changed)
{
EditorUtility.SetDirty(_target);
Repaint();
}
}
/// <summary>
/// generates an arc from start to end with the arc axis curvatureAxis
/// </summary>
/// <returns>The arc.</returns>
/// <param name="start">Start.</param>
/// <param name="end">End.</param>
/// <param name="curvature">how far away from the line from start to end the arc extends</param>
/// <param name="curvatureAxis">the axis which the arc should extend into</param>
public static Spline generateArc(Vector3 start, Vector3 end, float curvature, Vector3 curvatureAxis)
{
curvatureAxis.Normalize();
return(Spline.generateArc(start, end, curvature, curvatureAxis, curvatureAxis));
}
/// <summary>
/// generates an arc from start to end with the arc axis perpendicular to start and end points
/// </summary>
/// <returns>The arc.</returns>
/// <param name="start">Start.</param>
/// <param name="end">End.</param>
/// <param name="curvature">how far away from the line from start to end the arc extends</param>
public static Spline generateArc(Vector3 start, Vector3 end, float curvature)
{
return(Spline.generateArc(start, end, curvature, Vector3.Cross(start, end)));
}
/// <summary>
/// helper for drawing gizmos in the editor
/// </summary>
public static void drawGizmos( Vector3[] nodes, float resolution = 50, bool isInEditMode = false )
{
// horribly inefficient but it only runs in the editor
var spline = new Spline( new List<Vector3>( nodes ) );
spline.drawGizmos( resolution, isInEditMode );
}
private void closeRoute()
{
// we will use the GoSpline class to handle the dirtywork of closing the path
var path = new Spline( _target.nodes, _target.useBezier, _target.forceStraightLinePath );
path.closePath();
_target.nodes = path.nodes;
GUI.changed = true;
}
public override void OnInspectorGUI()
{
showEditModeToggle();
if( !_target.isInEditMode )
{
drawInstructions();
return;
}
if( _target.useBezier && _target.nodes.Count < 4 )
_target.useBezier = false;
// what kind of handles shall we use?
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Use Standard Handles" );
_target.useStandardHandles = EditorGUILayout.Toggle( _target.useStandardHandles );
EditorGUILayout.EndHorizontal();
// path name:
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Route Name" );
_target.pathName = EditorGUILayout.TextField( _target.pathName );
EditorGUILayout.EndHorizontal();
if( _target.pathName == string.Empty )
_target.pathName = "route" + Random.Range( 1, 100000 );
// path color:
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Route Color" );
_target.pathColor = EditorGUILayout.ColorField( _target.pathColor );
EditorGUILayout.EndHorizontal();
// force bezier:
GUI.enabled = !_target.forceStraightLinePath;
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Use Bezier Path" );
EditorGUI.BeginChangeCheck();
_target.useBezier = EditorGUILayout.Toggle( _target.useBezier );
if( EditorGUI.EndChangeCheck() && _target.useBezier )
{
// validate
// make sure we have enough nodes to use a bezier. nodeCount - 1 must be divisible by 3
if( _target.nodes.Count < 4 )
{
Debug.LogError( "there must be at least 4 nodes to use a bezier" );
_target.useBezier = false;
}
else
{
var excessNodes = ( _target.nodes.Count - 1 ) % 3;
if( excessNodes > 0 )
{
_target.nodes.RemoveRange( _target.nodes.Count - excessNodes, excessNodes );
Debug.LogWarning( "trimming " + excessNodes + " from the node list to make a proper bezier spline" );
}
}
}
EditorGUILayout.EndHorizontal();
GUI.enabled = true;
// force straight lines:
GUI.enabled = !_target.useBezier;
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Force Straight Line Path" );
_target.forceStraightLinePath = EditorGUILayout.Toggle( _target.forceStraightLinePath );
EditorGUILayout.EndHorizontal();
GUI.enabled = true;
// close path. only relevant for node counts greater than 5
if( _target.nodes.Count < 5 )
GUI.enabled = false;
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Close Path" );
EditorGUI.BeginChangeCheck();
_target.closePath = EditorGUILayout.Toggle( _target.closePath );
if( EditorGUI.EndChangeCheck() )
{
if( _target.closePath )
closeRoute();
}
EditorGUILayout.EndHorizontal();
GUI.enabled = true;
// resolution
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Editor Drawing Resolution" );
_target.pathResolution = EditorGUILayout.IntSlider( _target.pathResolution, 2, 100 );
EditorGUILayout.EndHorizontal();
EditorGUILayout.Separator();
// insert node - we need 3 or more nodes for insert to make sense
if( _target.nodes.Count > 2 )
{
EditorGUILayout.BeginHorizontal();
GUI.enabled = _selectedNodeIndex != 0 && _selectedNodeIndex != -1;
if( GUILayout.Button( "Insert Node Before Selected" ) )
insertNodeAtIndex( _selectedNodeIndex, false );
GUI.enabled = _selectedNodeIndex != _target.nodes.Count - 1 && _selectedNodeIndex != -1;
if( GUILayout.Button( "Insert Node After Selected" ) )
insertNodeAtIndex( _selectedNodeIndex, true );
GUI.enabled = true;
EditorGUILayout.EndHorizontal();
}
// shift the start point to the origin
if( GUILayout.Button( "Shift Path to Start at Origin" ) )
{
Undo.RecordObject( _target, "Path Vector Changed" );
var offset = Vector3.zero;
// see what kind of path we are. the simplest case is just a straight line
var path = new Spline( _target.nodes, _target.useBezier, _target.forceStraightLinePath );
if( path.splineType == SplineType.StraightLine || path.splineType == SplineType.Bezier || _target.nodes.Count < 5 )
offset = Vector3.zero - _target.nodes[0];
else
offset = Vector3.zero - _target.nodes[1];
for( var i = 0; i < _target.nodes.Count; i++ )
_target.nodes[i] += offset;
GUI.changed = true;
}
// reverse
if( GUILayout.Button( "Reverse Path" ) )
{
Undo.RecordObject( _target, "Path Vector Changed" );
_target.nodes.Reverse();
GUI.changed = true;
}
// shifters. thse only make sense for straight line and catmull rom
if( _target.forceStraightLinePath || ( _target.nodes.Count > 4 && !_target.useBezier ) )
{
GUILayout.BeginHorizontal();
if( GUILayout.Button( "Shift Nodes Left" ) )
{
Undo.RecordObject( _target, "Path Vector Changed" );
var firstItem = _target.nodes[0];
_target.nodes.RemoveAt( 0 );
_target.nodes.Add( firstItem );
GUI.changed = true;
}
if( GUILayout.Button( "Shift Nodes Right" ) )
{
Undo.RecordObject( _target, "Path Vector Changed" );
var lastItem = _target.nodes[_target.nodes.Count - 1];
_target.nodes.RemoveAt( _target.nodes.Count - 1 );
_target.nodes.Insert( 0, lastItem );
GUI.changed = true;
}
GUILayout.EndHorizontal();
}
if( GUILayout.Button( "Clear Path" ) )
{
Undo.RecordObject( _target, "Path Vector Changed" );
_target.nodes.Clear();
_target.nodes.Add( _target.transform.position );
_target.nodes.Add( _target.transform.position + new Vector3( 5f, 5f ) );
GUI.changed = true;
}
if( GUILayout.Button( "Move z-axis Values to 0" ) )
{
Undo.RecordObject( _target, "Path Vector Changed" );
for( var i = 0; i < _target.nodes.Count; i++ )
_target.nodes[i] = new Vector3( _target.nodes[i].x, _target.nodes[i].y, 0f );
GUI.changed = true;
}
// persist to disk
EditorGUILayout.Space();
EditorGUILayout.LabelField( "Save to/Read from Disk" );
EditorGUILayout.Space();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Serialize and Save Path" );
if( GUILayout.Button( "Save" ) )
{
var path = EditorUtility.SaveFilePanel( "Save path", Application.dataPath + "/StreamingAssets", _target.pathName + ".asset", "asset" );
if( path != string.Empty )
{
persistRouteToDisk( path );
// fetch the filename and set it as the routeName
_target.pathName = Path.GetFileName( path ).Replace( ".asset", string.Empty );
GUI.changed = true;
}
}
EditorGUILayout.EndHorizontal();
// load from disk
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel( "Load saved path" );
if( GUILayout.Button( "Load" ) )
{
var path = EditorUtility.OpenFilePanel( "Choose path to load", Path.Combine( Application.dataPath, "StreamingAssets" ), "asset" );
if( path != string.Empty )
{
if( !File.Exists( path ) )
{
EditorUtility.DisplayDialog( "File does not exist", "Path couldn't find the file you specified", "Close" );
}
else
{
_target.nodes = SplineAssetUtils.bytesToVector3List( File.ReadAllBytes( path ) );
_target.pathName = Path.GetFileName( path ).Replace( ".asset", string.Empty );
GUI.changed = true;
}
}
}
EditorGUILayout.EndHorizontal();
// node display
EditorGUILayout.Space();
_showNodeDetails = EditorGUILayout.Foldout( _showNodeDetails, "Show Node Values" );
if( _showNodeDetails )
{
EditorGUI.indentLevel++;
for( int i = 0; i < _target.nodes.Count; i++ )
_target.nodes[i] = EditorGUILayout.Vector3Field( "Node " + ( i + 1 ), _target.nodes[i] );
EditorGUI.indentLevel--;
}
drawInstructions();
// update and redraw:
if( GUI.changed )
{
EditorUtility.SetDirty( _target );
Repaint();
}
}