Touchscreen Question

Processing Coding Questions
5

oh that would be really nice

int state = 0;

int x1=100, y1=100, w1=250, h1=250;   //Button oben links
int x2=1570, y2=100, w2=250, h2=250;   //Button oben rechts
int x3=100, y3=730, w3=250, h3=250;   //Button unten links
int x4=1570, y4=730, w4=250, h4=250;   //Button unten rechts

int x5=80, y5=870, w5=250, h5=100;   // Button zurück

void draw_4_button() { //_______ stat 0 only
  if ( over(x1, y1, w1, h1) ) stroke(200, 0, 0); 
  else stroke(0);
  rect(x1, y1, w1, h1);
  if ( over(x2, y2, w2, h2) ) stroke(200, 0, 0); 
  else stroke(0);
  rect(x2, y2, w2, h2);
  if ( over(x3, y3, w3, h3) ) stroke(200, 0, 0); 
  else stroke(0);
  rect(x3, y3, w3, h3);
  if ( over(x4, y4, w4, h4) ) stroke(200, 0, 0); 
  else stroke(0);
  rect(x4, y4, w4, h4);
}

void draw_zurueck_button() { //_ state 1,2,3
  if ( over(x5, y5, w5, h5) ) stroke(200, 0, 0); 
  else stroke(0);
  rect(x5, y5, w5, h5);
}

void setup() {
  fullScreen();
  //size(1920, 1080);
  fill(0, 0, 200);
  strokeWeight(10);
}

void draw() {
  background(200, 100, 200);
  if ( state == 0 ) draw_4_buttons();
  if ( state == 1 ) draw_back_button_and_some_text1();
  if ( state == 2 ) draw_back_button_and_some_text2();
  if ( state == 3 ) draw_back_button_and_some_text3();
  if ( state == 4 ) draw_back_button_and_some_text4();
}

void mousePressed() {
  if ( state == 0 ) {
    if ( over(x1, y1, w1, h1) )  state = 1;
    if ( over(x2, y2, w2, h2) )  state = 2;
    if ( over(x3, y3, w3, h3) )  state = 3;
    if ( over(x4, y4, w4, h4) )  state = 4;
  } else {
    if ( over(x5, y5, w5, h5) )  state = 0;
  }
}

void draw_4_buttons() {
  draw_4_button();
}

void draw_back_button_and_some_text1() {
  text("some text page1 ", 20, 20);
  draw_zurueck_button();
}

void draw_back_button_and_some_text2() {
  text("some text page2 ", 20, 20);
  draw_zurueck_button();
}

void draw_back_button_and_some_text3() {
  text("some text page3 ", 20, 20);
  draw_zurueck_button();
}

void draw_back_button_and_some_text4() {
  text("some text page4 ", 20, 20);
  draw_zurueck_button();
}

boolean over(int x, int y, int w, int h) {
  return ( mouseX > x & mouseX < x + w   &&
    mouseY > y & mouseY < y + h      ) ;
}

@Tiemen

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