Hi girls,

I just made a small script that simulate a Markov chain.
Here it is
 

1. // by Ignivome
2. // ignivome@gmail.com
   
3. /*int[][] markov = {
4.   {60, 40}, //state 0 (total 100%)
5.   {95, 5}   //state 1 (total 100%)
6. };*/
7.       
   
8. int[][] markov = {
9.   {60, 25, 15}, //state 0 (total 100%)
10.   {25, 50, 25}, //state 1 (total 100%)
11.   {35, 25, 40}  //state 2 (total 100%)
12. };
    
13.                  
    
14. int state = 0; //markov state
15. 
    
16. void setup() {}
17. void draw() {}
18. 
    
19. void mousePressed() {
20.   changeMarkovState();
21. }
22. 
    
23. void changeMarkovState() {
24.   float rnd = random(100.0); //rnd 100 for a 100% range
25.   float range = 0;
26.  
    
27.   for(int i = 0; i < markov[0].length; i++) {
28.     range += float(markov[state][i]);
29.     if(rnd <= range) {
30.       state = i; //set the new state
31.       break;
32.     }
33.   }
34.   println("Current state: " + state);
35. }
    
    

And for those who have difficulties to figure out how it works, here is a picture ;)


Feel free to optimize the code!