/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.4apJdkJzxi9/rev.2358
 * 
 * authors: 
 *   Marco Torchiano

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



// Pressing Control-R will render this sketch.

int h = random(11);
int m = random(59);

int WIDTH = 600;
int HEIGHT = 400;
int MARGIN = 30;

int GIRA = 0;
int QUIZ = 1;
int QUIZ_OK = 2;
int QUIZ_NO = 3;

int status = GIRA;
boolean showNumbers = true;

int correct;
int interline;

int CENTER = HEIGHT/2;
int RADIUS = CENTER - MARGIN;

String [] answers = new String[3];

void setup() {  // this is run once.   
    
    // set the background color
    background(255);
    
    // canvas size (Variable aren't evaluated. Integers only, please.)
    //size(WIDTH, HEIGHT); 
    size(600, 400); 
      
    // smooth edges
    smooth();
    
    // limit the number of frames per second
    frameRate(10);
    
    // set the width of the line. 
    strokeWeight(4);
    
    
    font = loadFont("Arial"); 
    textFont(font, 32); 

} 

void draw() {  // this is run repeatedly.  

    background(255,255,255);
    // set the color
    stroke(0,0,0);


    if(status==GIRA){
        fill(200,200,200);
    }else{
        fill(0,0,0);
    }   
    textSize(32);
    text("Gira",HEIGHT+MARGIN,MARGIN);  
    if(status==QUIZ){
        fill(200,200,200);
    }else{
        fill(0,0,0);
    }   
    textSize(32);
    text("Quiz",HEIGHT+MARGIN,3*MARGIN);  
    
    textSize(16);
    text("Click sull'orologio mostra/nasconde i numeri",HEIGHT*2/3,HEIGHT-10);
    
    // draw clock contour
    fill(255,255,255) ;
    ellipse(CENTER,CENTER,2*RADIUS,2*RADIUS);
    
    // draw the hour marks
    for(int i=0; i<12; ++i){
       double angle = PI/2 - i*PI/6;
       line(CENTER+RADIUS*cos(angle),CENTER-RADIUS*sin(angle),
           CENTER+0.9*RADIUS*cos(angle),CENTER-0.9*RADIUS*sin(angle));
          
        if(showNumbers){ 
            fill(0,0,0) ;
            textSize(24);
            if(i==0) s = "12";
            else s = ""+i;
            text(s,CENTER+1.1*RADIUS*cos(angle)-textWidth(s)/2,CENTER-1.1*RADIUS*sin(angle)+textAscent()/2);
       
            fill(128,128,128) ;
            textSize(18);
            s = ""+(i*5);
            text(s,CENTER+0.8*RADIUS*cos(angle)-textWidth(s)/2,CENTER-0.8*RADIUS*sin(angle)+textAscent()/2);
       
            fill(255,255,255) ;
        }
    }
    
    // hours
    strokeWeight(10);
    stroke(200,100,100);
    double h_angle = PI/2-h*PI/6-m*PI/360;
    line(200,200,200+100*cos(h_angle),200-100*sin(h_angle));
    
 
    // minutes
    strokeWeight(6);
    stroke(100,200,100);
    double m_angle = PI/2-m*PI/30;
    line(200,200,200+150*cos(m_angle),200-150*sin(m_angle));
    
    strokeWeight(4);

    if(status==GIRA){
        update();
    }else{


        //stroke(255,255,255);
        //fill(255,255,255);
        //rect(HEIGHT+MARGIN,HEIGHT/2,WIDTH-HEIGHT,4 * interline);
        stroke(0,0,0);
        textSize(18);
        interline = (textAscent()+textDescent())*2;
        for(int i=0; i<3; ++i){
            if(i==correct && status==QUIZ_OK){
                fill(100,200,100);
                text(answers[i] + " SI!",HEIGHT+MARGIN,HEIGHT/2+(i+1)*interline);
            }else
            if(i==correct && status==QUIZ_NO){
                fill(200,100,100);
                text(answers[i] + " No!",HEIGHT+MARGIN,HEIGHT/2+(i+1)*interline);
            }else{
                fill(0,0,0);
                text(answers[i],HEIGHT+MARGIN,HEIGHT/2+(i+1)*interline);
            }


        }
    }
}

void update(){
    if(status==GIRA){
        m++;
        if(m>=60){
            m=0;
            h = (h+1) % 12;
        }
    }
}

void performQuiz(){
    int secret_H = random(11.99);
    int secret_M = ((int)random(11.99))*5; // easier to identify
    
    h = (int)secret_H;
    m = (int)secret_M;
    
    correct = (int)random(2.99);
    
    for(int i=0; i<3; ++i){
        if(i==correct){
            answers[i] = h + " : " + m;
        }else{
            answers[i] = (int)random(11.99) + " : " + ((int)random(11.99))*5;
        }
    }
}

void mouseClicked(){
 
    if(mouseX > HEIGHT+MARGIN){
        if(mouseY<MARGIN){   // Gira
          status = GIRA;
        }else
        if(mouseY<3*MARGIN){ // Quiz
          status = QUIZ;
          performQuiz();
        }else
        if(mouseY>HEIGHT/2){ // quiz answers
          //println("MouseY=" + mouseY);
          //println("HEIGHT/2=" + HEIGHT/2);
          //println("interline=" + interline);
          i = (int)((mouseY-HEIGHT/2)/interline);
          //println("i=" + i);
          if(i==correct){
              status = QUIZ_OK;
            }else{
                status = QUIZ_NO;
            }
        }
    }else{
        showNumbers = ! showNumbers;
    }
}