Utils.java

import javafx.geometry.Point3D;
import javafx.scene.paint.Color;
import javafx.scene.paint.PhongMaterial;
import javafx.scene.transform.Affine;
import javafx.scene.transform.Rotate;
import javafx.scene.transform.Scale;
import javafx.scene.transform.Translate;

public class Utils {
    
    public static Affine getAffine(double dimCube, double d0, boolean bFaceArrow, String face){
        Affine aff;
        double d=2d*dimCube/3d;
        if(!bFaceArrow){
            aff=new Affine(new Scale(80,80,50));
            aff.append(new Translate(-d0,-d0,d0));
        } else {
            aff=new Affine(new Scale(3,3,3));
            aff.append(new Translate(0,-d0,0));
        }
        switch(face){
            case "F": 
            case "Fi":  aff.prepend(new Rotate(face.equals("F")?90:-90,Rotate.X_AXIS));
                        aff.prepend(new Rotate(face.equals("F")?45:-45,Rotate.Z_AXIS));
                        aff.prepend(new Translate(0,0,dimCube/2d));
                        break;
            case "B": 
            case "Bi":  aff.prepend(new Rotate(face.equals("Bi")?90:-90,Rotate.X_AXIS));
                        aff.prepend(new Rotate(face.equals("Bi")?45:-45,Rotate.Z_AXIS));
                        aff.prepend(new Translate(0,0,-dimCube/2d));
                        break;
            case "R":  
            case "Ri":  aff.prepend(new Rotate(face.equals("Ri")?90:-90,Rotate.Z_AXIS));
                        aff.prepend(new Rotate(face.equals("Ri")?45:-45,Rotate.X_AXIS));
                        aff.prepend(new Translate(dimCube/2d,0,0));
                        break;
            case "L":  
            case "Li":  aff.prepend(new Rotate(face.equals("L")?90:-90,Rotate.Z_AXIS));
                        aff.prepend(new Rotate(face.equals("L")?45:-45,Rotate.X_AXIS));
                        aff.prepend(new Translate(-dimCube/2d,0,0));
                        break;
            case "U":   
            case "Ui":  aff.prepend(new Rotate(face.equals("Ui")?180:0,Rotate.Z_AXIS));
                        aff.prepend(new Rotate(face.equals("Ui")?45:-45,Rotate.Y_AXIS));
                        aff.prepend(new Translate(0,dimCube/2d,0));
                        break;
            case "D": 
            case "Di":  aff.prepend(new Rotate(face.equals("D")?180:0,Rotate.Z_AXIS));
                        aff.prepend(new Rotate(face.equals("D")?45:-45,Rotate.Y_AXIS));
                        aff.prepend(new Translate(0,-dimCube/2d,0));
                        break;
            case "Z": 
            case "Zi":  aff.prepend(new Rotate(face.equals("Zi")?180:0,Rotate.Y_AXIS));
                        aff.prepend(new Rotate(face.equals("Zi")?45:-45,Rotate.Z_AXIS));
                        aff.prepend(new Translate(0,0,d));
                        break;
            case "X":  
            case "Xi":  aff.prepend(new Rotate(face.equals("X")?90:-90,Rotate.Y_AXIS));
                        aff.prepend(new Rotate(face.equals("Xi")?45:-45,Rotate.X_AXIS));
                        aff.prepend(new Translate(d,0,0));
                        break;
            case "Y":   
            case "Yi":  aff.prepend(new Rotate(face.equals("Yi")?90:-90,Rotate.X_AXIS));
                        aff.prepend(new Rotate(face.equals("Yi")?45:-45,Rotate.Y_AXIS));
                        aff.prepend(new Translate(0,d,0));
                        break;
        }
        return aff;
    }
    
    public static PhongMaterial getMaterial(String face){
        PhongMaterial arrowMat = new PhongMaterial();
        arrowMat.setSpecularColor(Color.WHITESMOKE);
        Color color=Color.WHITE;
        switch(face){
            case "F": 
            case "Fi":  color=Color.BLUE.brighter();
                        break;
            case "B": 
            case "Bi":  color=Color.BLUE.brighter();
                        break;
            case "R":  
            case "Ri":  color=Color.RED.brighter();
                        break;
            case "L":  
            case "Li":  color=Color.RED.brighter();
                        break;
            case "U":   
            case "Ui":  color=Color.FORESTGREEN.brighter();
                        break;
            case "D": 
            case "Di":  color=Color.FORESTGREEN.brighter();
                        break;
            case "Z": 
            case "Zi":  color=Color.BLUE.brighter();
                        break;
            case "X":  
            case "Xi":  color=Color.RED.brighter();
                        break;
            case "Y":   
            case "Yi":  color=Color.FORESTGREEN.brighter();
                        break;
        }
        arrowMat.setDiffuseColor(color);
        return arrowMat;
    }
    
    public static Point3D getAxis(String face){
        Point3D p=new Point3D(0,0,0);
        switch(face.substring(0,1)){
            case "L":  
            case "M":  p=new Point3D(-1,0,0); 
                       break;
            case "R":  p=new Point3D(1,0,0); 
                       break;
            case "U":  p=new Point3D(0,1,0); 
                       break;
            case "E":  
            case "D":  p=new Point3D(0,-1,0); 
                       break;
            case "F":  
            case "S":  p=new Point3D(0,0,1); 
                       break;
            case "B":  p=new Point3D(0,0,-1); 
                       break;
            case "X":  p=new Point3D(1,0,0); 
                       break;
            case "Y":  p=new Point3D(0,1,0); 
                       break;
            case "Z":  p=new Point3D(0,0,1); 
                       break;
        }
        return p;
    }
    
    public static int getCenter(String face){
        int c=0;
        switch(face.substring(0,1)){
            case "L":  c=12; break;
            case "M":  c=13; break;
            case "R":  c=14; break;
            case "U":  c=10; break;
            case "E":  c=13; break;
            case "D":  c=16; break;
            case "F":  c=4;  break;
            case "S":  c=13; break;
            case "B":  c=22; break;
        }
        return c;
    }
    
}