PersistentTrails.Utilities.ColorToHSV C# (CSharp) Method

        public static void ColorToHSV(Color color, out float h, out float s, out float v)
        {
            float min = Mathf.Min(Mathf.Min(color.r, color.g), color.b);
            float max = Mathf.Max(Mathf.Max(color.r, color.g), color.b);
            float delta = max - min;

            // value is our max color
            v = max;

            // saturation is percent of max
            if (!Mathf.Approximately(max, 0))
                s = delta / max;
            else
            {
                // all colors are zero, no saturation and hue is undefined
                s = 0;
                h = -1;
                return;
            }

            // grayscale image if min and max are the same
            if (Mathf.Approximately(min, max))
            {
                v = max;
                s = 0;
                h = -1;
                return;
            }

            // hue depends which color is max (this creates a rainbow effect)
            if (color.r == max)
                h = (color.g - color.b) / delta;            // between yellow & magenta
            else if (color.g == max)
                h = 2 + (color.b - color.r) / delta;                // between cyan & yellow
            else
                h = 4 + (color.r - color.g) / delta;                // between magenta & cyan

            // turn hue into 0-360 degrees
            h *= 60;
            if (h < 0)
                h += 360;
        }

        protected override void DrawWindowContents(int windowID)
        {
            GUILayout.BeginVertical(); // BEGIN outer container

            GUILayout.BeginHorizontal();
            GUILayout.Label("Track Name:");
            newName = GUILayout.TextField(newName);
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();
            GUILayout.Label("Description:");
            newDescription = GUILayout.TextField(newDescription);
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();
            GUILayout.Label("Color");

            GUILayout.BeginVertical();
            float h, s, v;

            Utilities.ColorToHSV(newColor, out h, out s, out v);
            GUILayout.BeginHorizontal();
            GUILayout.Label("Hue");
            h = GUILayout.HorizontalSlider(h, 0, 360);
            GUILayout.EndHorizontal();
            GUILayout.BeginHorizontal();
            GUILayout.Label("Sat.");
            s = GUILayout.HorizontalSlider(s, 0, 1);
            GUILayout.EndHorizontal();
            GUILayout.BeginHorizontal();
            GUILayout.Label("Val.");
            v        = GUILayout.HorizontalSlider(v, 0, 1);
            newColor = Utilities.ColorFromHSV(h, s, v);
            GUILayout.EndHorizontal();
            GUILayout.EndVertical();

            Utilities.SetTextureColor(colorTex, 32, 32, this.newColor);
            //this.colorStyle = new GUIStyle();
            //colorStyle.normal.textColor = this.newColor;
            //GUIStyle generic_style = new GUIStyle();
            //GUI.skin.box = generic_style;
            //GUI.Box(new Rect(x, y, w, h), rgb_texture);

            if (GUILayout.Button(colorTex))
            {
                // Show the color dialog.
                ExplorerTrackBehaviour.Instance.colorDlg = new ColorPicker(this);
                ExplorerTrackBehaviour.Instance.colorDlg.Awake();
                ExplorerTrackBehaviour.Instance.colorDlg.SetVisible(true);
            }

            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();
            GUILayout.Label("Draw Sampling:");
            sampling = GUILayout.HorizontalSlider(sampling, 1, 10);
            GUILayout.Label("" + (int)sampling + "x");
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();
            GUILayout.Label("Line Width (m):");
            float sliderPos = lineWidthToSliderPos(lineWidth);

            sliderPos = GUILayout.HorizontalSlider(sliderPos, 1, 12);
            lineWidth = sliderPosToLineWidth(sliderPos);
            GUILayout.Label("" + lineWidth + "m");
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();
            GUILayout.Label("Direction marker radius:");
            markerRadiusFactor = GUILayout.HorizontalSlider(markerRadiusFactor, 2, 50);
            GUILayout.Label("" + lineWidth * markerRadiusFactor + "m");
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();
            GUILayout.Label("Number of direction markers:");
            numMarkers = GUILayout.HorizontalSlider(numMarkers, 0, 20);
            GUILayout.Label("" + (int)numMarkers);
            GUILayout.EndHorizontal();

            colliders = GUILayout.Toggle(colliders, "Activate Replay Colliders");

            GUILayout.BeginHorizontal();
            GUILayout.Label("Replay End Action:");
            selectedActionIndex = GUILayout.SelectionGrid(selectedActionIndex, new string[] { "Stop", "Loop", "OffRails", "Delete" }, 4);
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();
            GUILayout.Label("Loop closure time:");
            loopTime = GUILayout.HorizontalSlider(loopTime, 0, 100);
            GUILayout.Label("" + (int)loopTime + "s");
            GUILayout.EndHorizontal();

            GUILayout.BeginHorizontal();

            if (GUILayout.Button("OK"))
            {
                string newUniqueName = Utilities.makeUniqueTrackName(newName, ref trackList, true);
                if (File.Exists(Utilities.TrackPath + track.TrackName + ".trk"))
                {
                    File.Move(Utilities.TrackPath + track.TrackName + ".trk", Utilities.TrackPath + newUniqueName + ".trk");
                }

                track.TrackName      = newUniqueName;
                track.Description    = newDescription;
                track.LineColor      = newColor;
                track.SamplingFactor = (int)sampling;
                track.LineWidth      = lineWidth;
                track.ConeRadiusToLineWidthFactor = markerRadiusFactor;
                track.NumDirectionMarkers         = (int)numMarkers;
                track.LoopClosureTime             = (int)loopTime;
                track.ReplayColliders             = colliders;
                track.EndAction = (Track.EndActions)selectedActionIndex;

                track.Modified = true;

                track.setupRenderer();
                mainWindow.updateColorTextures();
                SetVisible(false);
                Save(new ConfigNode(GetConfigNodeName()));//Does nothing...
            }

            if (GUILayout.Button("Cancel"))
            {
                SetVisible(false);
            }

            GUILayout.EndHorizontal();

            GUILayout.EndVertical();
        }