Can I switch two programs in one code?

Can I switch two programs in one code? I am making airmouse now. I want to make it a joystick mode and a accelerometer mode. And I want to switch it in a button. What should I do? This is my code.

#include 

void setup()
{
  
}

void loop()
{
  int xAxis = Esplora.readAccelerometer(X_AXIS);    // read the X axis
  int yAxis = Esplora.readAccelerometer(Y_AXIS);    // read the Y axis
  int mouseX = map(xAxis, -512, 512, 8, -8);  
  int slider = Esplora.readSlider()/2;
  int left_button = Esplora.readButton(1);
  int right_button = Esplora.readButton(3);
  int up_button = Esplora.readButton(2);
  int down_button = Esplora.readButton(4);
  /*int speed_button = Esplora.readJoystickButton();
  int Speed = */

  Serial.print("\nx : ");      // print the label for X
  Serial.print(xAxis);      // print the value for the X axis
  Serial.print("\ty : ");    // print a tab character, then the label for Y
  Serial.print(yAxis);
  Serial.print("\tslider/2 :");
  Serial.print(slider);
  
  if(yAxis<-60)
  {
    
    int mouseX = map(-yAxis+slider+30, -512, 512, -10, 10);
    Mouse.move(mouseX, 0, 0);
  }
  if(yAxis>90)
  {
    int mouseX = map(-yAxis-slider, -512, 512, -10, 10);
    Mouse.move(mouseX, 0, 0);
  }
  if(xAxis<-60)
  {
    int mouseY = map(-xAxis+slider, -512, 512, 10, -10);
    Mouse.move(0, mouseY, 0);
  }
  if(xAxis>40)
  {
    int mouseY = map(-xAxis-slider, -512, 512, 10, -10);
    Mouse.move(0, mouseY, 0);
  }
    if (left_button == 0) {                           
    Mouse.press();                            
  }
  else
  {
    Mouse.release();                          
  }
  
   if (right_button == 0) {                         
    Mouse.press(MOUSE_RIGHT);                       
  } else {
    Mouse.release(MOUSE_RIGHT);                       
  }
   if (up_button == 0) {
    Mouse.move(0, 0, 1);
    delay(100);
    } 
  
    if (down_button == 0) {                           
    Mouse.move(0, 0, -1); 
    delay(100);                   
  }
    /*int xValue = Esplora.readJoystickX();        
  int yValue = Esplora.readJoystickY();        
  int button = Esplora.readButton(2);  
  int right_button = Esplora.readButton(4); 
  int middle_button = Esplora.readJoystickSwitch();
  int up = Esplora.readButton(3); 
  int down = Esplora.readButton(1); 
  
  Serial.print("Joystick X: ");                
  Serial.print(xValue);                        
  Serial.print("\tY: ");                     
  Serial.print(yValue);                        
  Serial.print("\tButton: ");                 
  Serial.print(button); 
  Serial.print("\n");                       
  int mouseX = map(xValue, -512, 512, 8, -8);  
  int mouseY = map(yValue, -512, 512, -8, 8);   
  Mouse.move(mouseX, mouseY, 0);                 
  if (button == 0) {                           
    Mouse.press();                            
  }
  else
  {
    Mouse.release();                          
  }
  
   if (right_button == 0) {                         
    Mouse.press(MOUSE_RIGHT);                       
  } else {
    Mouse.release(MOUSE_RIGHT);                       
  }
   if (middle_button == 0) {                          
    Mouse.press(MOUSE_MIDDLE);                             
  } else {
    Mouse.release(MOUSE_MIDDLE);      
  }
   if (up == 0) {                          
    Keyboard.press(KEY_UP_ARROW);                            
  } else {
   Keyboard.release(KEY_UP_ARROW);                         
  }
    if (down == 0) {                           
    Keyboard.press(KEY_DOWN_ARROW);                      
  } else {
    Keyboard.release(KEY_DOWN_ARROW);                       
  }
  delay(10);*/ 
  
  delay(10);              // wait half a second (500 milliseconds)
}

Annotations are the joystick mode.