//microdev.gr
//(C) Panos Papazoglou
//Jan 2023

//***********************************************************************************                
//Import Library for serial communication 
//***********************************************************************************
import processing.serial.*;
Serial myPort; 

//***********************************************************************************                
//Declare component for image manipulation
//***********************************************************************************
PImage img;

//***********************************************************************************                
//Initial button state
//***********************************************************************************
int button=0;

//***********************************************************************************                
//Initial color values
//***********************************************************************************
int red=255, green=255, blue=255;
int bred=0, bgreen=0, bblue=0;

//***********************************************************************************                
//Initial value for distance measurement
//***********************************************************************************
int dist=100;

//***********************************************************************************                
//Initial values for setting reference coordinates
//***********************************************************************************
int xinit=200; int y=200; int d=150;

//***********************************************************************************                
//Variables for potentiometer values
//***********************************************************************************
int a=0,b=0,c=0,s1=0,s2=0,s3=0;


void setup()
{
//***********************************************************************************                
//Select full screen or windowed application
//***********************************************************************************
//size(1000, 900);
fullScreen();


//***********************************************************************************                
//Load image
//***********************************************************************************
img=loadImage("ti.jpg");

//***********************************************************************************                
//Set application title (window title)
//***********************************************************************************
surface.setTitle("Color Mixer - microdev.gr");


//***********************************************************************************                
//Select correct port number (e.g. COM8, COM12). Use device manager or Arduino IDE
//for finding the assigned port by OS
//***********************************************************************************
myPort = new Serial(this, "COM8", 9600);

}


void draw()
{

//***********************************************************************************                
//Read a line from serial port
//***********************************************************************************
   String inString=myPort.readStringUntil('\n');     
  
    //***********************************************************************************                
    //If data exist...
    //***********************************************************************************
    if (inString!=null)                                 
    {

      //***********************************************************************************                
      //Split received string using the character "."
      //***********************************************************************************
       String[] num=splitTokens(inString,".");        
       
           
      //***********************************************************************************                
      //Reject any unwanted characters at the beginning of the received string
      //***********************************************************************************  
       char ic=' ', ic2=' ';
       ic=num[0].charAt(0);
       if (num[0].length()>1) ic2=num[0].charAt(1);
       
       if ((ic<'0') || (ic>'9') || (ic2<'0') || (ic2>'9'))
         a=0;
       else
         //RED F
         
         //***********************************************************************************                
        //Parse to INT all the receiced tokens
        //***********************************************************************************
         a=Integer.parseInt(num[0]);
       
       
       //Μετατροπή και των υπόλοιπων χαρακτήρων που λαμβάνονται σε ακέραιες τιμές
       
       //GREEN F
       b=Integer.parseInt(num[1]);
       
       //BLUE F
       c=Integer.parseInt(num[2]);
       
       //RED B
       s1=Integer.parseInt(num[3]);
       
       //GREEN B
       s2=Integer.parseInt(num[4]);
       
       //BLUE B
       s3=Integer.parseInt(num[5]);
       
      
       button=Integer.parseInt(num[6]);
       
      
       dist=Integer.parseInt(num[7].trim());
      
 
       //***********************************************************************************                
      //If the switch on the board is activated, set all colors (f,b) based on potentiometers
      //***********************************************************************************
       
       if (button==1) 
     
     {
     
     
     red=a; green=b; blue=c;
     
     
     bred=s1; bgreen=s2; bblue=s3;  
 
 }
 else
 {
     
     bred=0; bgreen=0; bblue=0;
 }
  
       //***********************************************************************************                
      //Display messages on the console for debugging
      //***********************************************************************************
       print("p1=",a,", "); 
       print("p2=",b,", ");
       print("p3=",c,", ");
       println("button=",button);
       
       print("s1=",s1,", "); 
       print("s2=",s2,", ");
       print("s3=",s3,", ");
       println("dist=",dist);
       println("----------------------------");
                                        
    } 
  
      //***********************************************************************************                
      //Set screen background color - the screen is cleared
      //***********************************************************************************
  background(bred,bgreen,bblue);
  
  
      //***********************************************************************************                
      //Set additional variables for the coordinates that will be used later
      //***********************************************************************************
  int x=xinit;
  int dx=45, dy=30;
  int ts=70; int tx=xinit-50;
  
      //***********************************************************************************                
      //Display main word based on the distance measurement (distance sensor)
      //***********************************************************************************
   if ((dist>=3) && (dist<6))
       {
                
                fill(red,green,blue);   
                textSize(ts);
                text("Welcome",tx,dy+y+2*d);
                println("Welcome");
                
       }
      
       if ((dist>=6) && (dist<12))
       {
                fill(red,green,blue);textSize(ts);
                text("Digital Arts",tx,dy+y+2*d);
                println("Digital Arts");
                
       }
    
    
    if ((dist>=12) && (dist<18))
       {
                fill(red,green,blue);textSize(ts);
                text("Cinema",tx,dy+y+2*d);
                println("Cinema");
                
       }
    
    if (dist>=18)
    {
                fill(red,green,blue);textSize(ts);
                text("Microdev.gr",tx,dy+y+2*d);
                println("Microdev.gr");
               
    
    }
    
//***********************************************************************************                
//Display image
//***********************************************************************************
image(img, tx, y-50+3*d);

//***********************************************************************************                
//Display histogram for RGB colors
//***********************************************************************************
stroke(255); line(3*xinit,150+dy+y+2*d, 3*xinit+200,150+dy+y+2*d);
stroke(255,0,0); line(3*xinit+20,150+dy+y+2*d,3*xinit+20,(150+dy+y+2*d)-red);
stroke(0,255,0); line(3*xinit+40,150+dy+y+2*d,3*xinit+40,(150+dy+y+2*d)-green);
stroke(0,0,255); line(3*xinit+60,150+dy+y+2*d,3*xinit+60,(150+dy+y+2*d)-blue);


//***********************************************************************************                
//Display histogram for RGB background colors
//***********************************************************************************

stroke(255,0,0); line(3*xinit+120,150+dy+y+2*d,3*xinit+120,(150+dy+y+2*d)-bred);
stroke(0,255,0); line(3*xinit+140,150+dy+y+2*d,3*xinit+140,(150+dy+y+2*d)-bgreen);
stroke(0,0,255); line(3*xinit+160,150+dy+y+2*d,3*xinit+160,(150+dy+y+2*d)-bblue);
fill(255);
text("F",3*xinit+20,220+dy+y+2*d);
text("B",3*xinit+120,220+dy+y+2*d);
noFill();
noStroke();



String msg="";
//***********************************************************************************                
//If the switch is activated, display an indication at the bottom of the screen
//and two yellow rectangles on the displayed image
//***********************************************************************************

if (button==1)
{
  
     textSize(20);
     fill(red,green,blue);
     text("Control=POT",3*xinit+20,height-10);
     
     
     noFill(); stroke(255,255,0);strokeWeight(16);
     rect(xinit-50,y+3*d,250,80); 
     rect(xinit-50+100,108+y+3*d,150,80);
     
     
     noStroke();strokeWeight(1);
}


else
{
  textSize(20);
   fill(red,green,blue);
 text("Control=MOUSE",3*xinit+20,height-10); 
 }
 

   fill(red,green,blue);textSize(30);
   text("COLOR MIXER V1.0 - Panos Papazoglou",10,50);
   
//***********************************************************************************                
//Draw RED circle 
//***********************************************************************************
fill(red,0,0);
noStroke();
circle(x,y,d);

//***********************************************************************************                
//Draw buttons for RED
//***********************************************************************************
draw_buttons(x,y,d);

//***********************************************************************************                
//Display color values for RED
//***********************************************************************************
msg="red="+str(red);
text(msg,x-dx,y-d+35);
msg="Bred="+str(bred);
dy=dy+30;
text(msg,x-dx,y+d+dy);

//***********************************************************************************                
//Draw GREEN circle 
//***********************************************************************************
x=2*xinit;
fill(0,green,0);
noStroke();
circle(x,y,d);

//***********************************************************************************                
//Draw buttons for GREEN
//***********************************************************************************
draw_buttons(x,y,d);

//***********************************************************************************                
//Display color values for GREEN
//***********************************************************************************
msg="green="+str(green);
text(msg,x-dx,y-d+35);
msg="Bgreen="+str(bgreen);
text(msg,x-dx,y+d+dy);

//***********************************************************************************                
//Draw BLUE circle 
//***********************************************************************************
x=3*xinit;
fill(0,0,blue);
noStroke();
circle(x,y,d);

//***********************************************************************************                
//Draw buttons for BLUE
//***********************************************************************************
draw_buttons(x,y,d);

//***********************************************************************************                
//Display color values for BLUE
//***********************************************************************************
msg="blue="+str(blue);
text(msg,x-dx,y-d+35);
msg="Bblue="+str(bblue);
text(msg,x-dx,y+d+dy);


//***********************************************************************************                
//Draw mixed color circle 
//***********************************************************************************
x=4*xinit;
fill(red, green, blue);
noStroke();
circle(x,200,d);
}


//***********************************************************************************                
//Draw buttons (call function more polite) 
//***********************************************************************************

void draw_buttons(int x, int y, int d)
{
draw_p(x+10,(y+d/2)+10,40,30,'+');
draw_p(x-50,(y+d/2)+10,40,30,'-');
draw_p(x+10,(y+d/2)+50,40,30,'S');
draw_p(x-50,(y+d/2)+50,40,30,'R');
}

//***********************************************************************************                
//Draw buttons
//***********************************************************************************
void draw_p(int xstart, int ystart, int wd, int ht, char s)
{
fill(0); stroke(255);
rect(xstart, ystart, wd, ht);
fill(255); textSize(30);
text(s, xstart+10, ystart+30);
}


//***********************************************************************************                
//Check which button is clicked
//***********************************************************************************

void mouseClicked()
{
  //+ RED
  if ((mouseX>=xinit+10) && (mouseX<=xinit+40))
    if ((mouseY>=(y+d/2)+10) && ((mouseY<=(y+d/2)+30)))
    {
    red=red+5;
    if (red>255) red=255;
    }
    
  //- RED
  if ((mouseX>=xinit-50) && (mouseX<=xinit-50+40))
    if ((mouseY>=(y+d/2)+10) && ((mouseY<=(y+d/2)+30)))
    {
    red=red-5;
    if (red<0) red=0;
    }
    
    
    
    //SET RED
  if ((mouseX>=xinit+10) && (mouseX<=xinit+40))
    if ((mouseY>=(y+d/2)+50) && ((mouseY<=(y+d/2)+70)))
      red=255;
    
  //RESET RED
  if ((mouseX>=xinit-50) && (mouseX<=xinit-50+40))
    if ((mouseY>=(y+d/2)+50) && ((mouseY<=(y+d/2)+70)))
      red=0;
    
    
    
    
    
//+ GREEN
  if ((mouseX>=(xinit*2)+10) && (mouseX<=(xinit*2)+40))
    if ((mouseY>=(y+d/2)+10) && ((mouseY<=(y+d/2)+30)))
    {
    green=green+5;
    if (green>255) green=255;
    }
    
  //- GREEN
  if ((mouseX>=(xinit*2)-50) && (mouseX<=(xinit*2)-50+40))
    if ((mouseY>=(y+d/2)+10) && ((mouseY<=(y+d/2)+30)))
    {
    green=green-5;
    if (green<0) green=0;
    }
    
    

  
  //SET GREEN
  if ((mouseX>=(xinit*2)+10) && (mouseX<=(xinit*2)+40))
    if ((mouseY>=(y+d/2)+50) && ((mouseY<=(y+d/2)+70)))
   green=255;
    
  //RESET GREEN
  if ((mouseX>=(xinit*2)-50) && (mouseX<=(xinit*2)-50+40))
    if ((mouseY>=(y+d/2)+50) && ((mouseY<=(y+d/2)+70)))
    green=0;
    

    
    //+ BLUE
  if ((mouseX>=(xinit*3)+10) && (mouseX<=(xinit*3)+40))
    if ((mouseY>=(y+d/2)+10) && ((mouseY<=(y+d/2)+30)))
    {
    blue=blue+5;
    if (blue>255) blue=255;
    }
    
  //- BLUE
  if ((mouseX>=(xinit*3)-50) && (mouseX<=(xinit*3)-50+40))
    if ((mouseY>=(y+d/2)+10) && ((mouseY<=(y+d/2)+30)))
    {
    blue=blue-5;
    if (blue<0) blue=0;
    }
    
    

    
      //SET BLUE
  if ((mouseX>=(xinit*3)+10) && (mouseX<=(xinit*3)+40))
    if ((mouseY>=(y+d/2)+50) && ((mouseY<=(y+d/2)+70)))
    blue=255;
    
    
  //RESET BLUE
  if ((mouseX>=(xinit*3)-50) && (mouseX<=(xinit*3)-50+40))
    if ((mouseY>=(y+d/2)+50) && ((mouseY<=(y+d/2)+70)))
    blue=0;
    
    
  
    
}
//***********************************************************************************                
//If the ESC key is pressed, the the application is terminated
//***********************************************************************************
void keyPressed()
{
if (key==27) exit();

}