Animation with 3 different sketches combined using Switch with keyboard input

[Gus_Fermin]

@glv

//import ddf.minim.*;
//import ddf.minim.analysis.*;
//import ddf.minim.effects.*;
//import ddf.minim.signals.*;
//import ddf.minim.spi.*;
//import ddf.minim.ugens.*;

//Minim minim;
//AudioPlayer song;
//BeatDetect beat;
//BeatListener bl;
//float kickSize, snareSize, hatSize;


float speed = 0.003f;
float radius1;
float radius2;

color b = color(0);

int sketchToDraw; 

void setup() {
  size(600, 600, P3D);
  smooth();
  background(0); //0xeeeeff
  //minim = new Minim(this);
  //song = minim.loadFile("Kintsugi (09_04_20).mp3", 1024);
  //song.play();
}

void draw() {
  
  background(b);
  
  //if(song==null)
  //return;
  switch (sketchToDraw) {
  case 0:  draw1(); break;
  case 1:  draw2(); break;
  case 2:  draw3(); break;
  default: 
    b = color(0, 255, 0);
    draw0();
    break;
  }
}

void keyPressed() {
  if (key == '1')
    sketchToDraw = 0;

  else if (key == '2')
    sketchToDraw = 1;

  else if (key == '3')
    sketchToDraw = 2;
  else 
  sketchToDraw = '!';
  
}

//////////////////////// other sketches / scenes in tabs below: draw1(), draw2(), draw3()
//// that I call from draw() using switch

void draw0()
  {
  println("Hit a key 1 or 2 or 3 ...");
  }

void draw1() {
   
  b = color(255, 0, 255);
  
  println("1");
  speed = 0.003f;//0.03f;
  radius1 = 50 + 30 * sin( frameCount * speed);
  radius2 = 50 +30 * cos(frameCount * speed);
  if (mousePressed) {
    background(255);
    //filter(ERODE);
    filter(INVERT);
    strokeWeight(100 * sin(frameCount * speed));
    stroke(#81FFE0, 255); //255
    fill(0, 0);
    rotateX(radians(radius1));
  } else {
    strokeWeight(sin(frameCount * speed));
    stroke(#81FFE0, random(100, 200));
    fill(255, radius1, radius2, 3);
  }
  pushMatrix();
  //frameRate(30);
  //background(0);
  lights();
  translate(width/2, height/2, 200);
  rotateZ(radians(radius2));
  rotateX(PI * sin(radians(radius1*500)));
  rotateY(radians(radius2 * speed));
  //println(sp);

  sphere(constrain(radius2*3, 20, 1000)); //1000
  //ellipse(mouseX, mouseY, radius1 * 15, radius2 * 15);
  popMatrix();
  pushMatrix();
  lights();
  translate(width/2, height/2, 200);
  rotateY(radius1 * 500);
  rotateZ(radius2 * 1000);
  sphere(800);
  popMatrix(); 
}

void draw2() {
  println("2");
  b = color(255, 255, 0);
  speed = 0.003f;//0.03f;
  radius1 = 50 + 30 * sin( frameCount * speed);
  radius2 = 50 +30 * cos(frameCount * speed);
  if (mousePressed) {
    background(255);
    filter(ERODE);
    //filter(INVERT);
    strokeWeight(10 * sin(frameCount * speed));
    stroke(#81FFE0, 150); //255
    fill(0, 255);
    rotateX(radians(radius1));
  } else {
    strokeWeight(sin(frameCount * speed));
    stroke(#81FFE0, random(100, 200));
    fill(255, radius1, radius2, 3);
  }
  pushMatrix();
 // frameRate(30);
  //background(0);
  lights();
  translate(width/2, height/2, 200);
  rotateZ(radians(radius2));
  rotateX(PI * sin(radians(radius1*500)));
  rotateY(radians(radius2 * speed));
  //println(sp);

  sphere(constrain(radius2*3, 20, 1000)); //1000
  pushStyle();
  filter(POSTERIZE,230); // FILTER!!!
  popStyle();
  //ellipse(mouseX, mouseY, radius1 * 15, radius2 * 15);
  popMatrix();
  pushMatrix();
  lights();
  translate(width/2, height/2, 200);
  rotateY(radius1 * 500);
  rotateZ(radius2 * 1000);
  sphere(800);
  popMatrix();
 }
void draw3() {
 
  println("3");
  b = color(255, 0, 0);
  speed = 0.003f;//0.03f;
  radius1 = 50 + 30 * sin( frameCount * speed);
  radius2 = 50 +30 * cos(frameCount * speed);
  if (mousePressed) {
    background(255);
    filter(ERODE);
    //filter(INVERT);
    strokeWeight(100 * sin(frameCount * speed));
    stroke(#81FFE0, 255); //255
    fill(0, 0);
    rotateX(radians(radius1));
  } else {
    strokeWeight(sin(frameCount * speed));
    stroke(#81FFE0, random(100, 200));
    fill(255, radius1, radius2, 3);
  }
  pushMatrix();
  //frameRate(30);
  //background(0);
  lights();
  translate(width/2, height/2, 200);
  rotateZ(radians(radius2));
  rotateX(PI * sin(radians(radius1*500)));
  rotateY(radians(radius2 * speed));
  //println(sp);
  
  sphere(constrain(radius2*3, 20, 1000)); //1000
  //ellipse(mouseX, mouseY, radius1 * 15, radius2 * 15);
  popMatrix();
  pushMatrix();
  lights();
  translate(width/2, height/2, 200);
  rotateY(radius1 * 500);
  rotateZ(radius2 * 1000);
  sphere(800);
  popMatrix();
}

OMG, the various else if in void keyPressed()!!!
How is that possible that in my simple example above (Animation with 3 different sketches combined using Switch with keyboard input - #3 by Gus_Fermin, it worked without the else if and only with multiple if 's, yet here on the big program it did not work? stuff like that still gets me. Wow thank you very much, will keep studying the conditional statements and also thank you for your help and for pointing me to the other timed examples above.