i have a code that i developed a little bit. my goal is making a tag cloud with bubbles, which are floating on screen and when they touch each other, changing the floating direction. when i try to add another bubble on screen, my first bubbles gains more speed. and second bubble doesnt floating in screen. i try to have 5 or more bubbles on screen and they floating to random directions..sorry for my bad english. 

2. float ne_x =  noise(10)*0.5;
3. 
   
4. float ne_y = noise(10)*0.5;
5. 
   
6. 
   
7. float move_x = noise(1);
8. float move_y = noise(1);
9. 
   
10. float currentx;
11. float currenty;
12. float num = 2;
13. 
    
14. void setup(){
15.   
16.   size(700, 400);
17.   //stroke(#D60DFF);
18.   smooth();
19.   noStroke();
20.   //strokeWeight(3);
21.   currentx = width / 2;
22.   currenty = height / 2;
23.   frameRate(320);
24. }
25. 
    
26. void draw(){
27.   fill(113,25,10,6);
28.  // background(#C95F45);
29.   rect(0, 0, width, height);
30.   
31.   drw(ne_x, ne_y, 30, 30);
32.   
33.   
34.   
35.  
36.   
37. }
38. 
    
39. void drw(float pozX, float pozY, int seg, int bub_we) {
40.   
41.   int Segments = seg;
42. 
    
43.   translate(width * noise(num+10), height * noise(num+50));
44.    
45.    rotate(10 * noise(num+10));
46.    num = num + 0.001;
47.   
48.    float x[] = new float[Segments];
49.    float y[] = new float[Segments];
50. 
    
51.   
52. 
    
53.   for (int i=0; i<Segments; i++) {
54. 
    
55.     float angle = float(i) / float(Segments) * TWO_PI+220;
56.     float distance = bub_we + 15 * noise(i, frameCount/60.0);  
57. 
    
58.     x[i] = pozX + sin(angle) * distance;
59.     y[i] = pozY + cos(angle) * distance;
60.   }
61.   
62.   
63.   /*ci_x = ci_x + move_x;
64.   ci_y = ci_y + move_y;*/
65.   
66.    if(ne_x > width){
67.   ne_x = width;
68.   move_x = -move_x;
69.   }
70.   
71.   if(ne_y > height){
72.   ne_y = height;
73.   move_y = -move_y;
74.   }
75.   
76.   if(ne_x < 0){
77.   ne_x = 0;
78.   move_x = -move_x;
79.   }
80.   
81.   if(ne_y < 0){
82.   ne_y = 0;
83.   move_y = -move_y;
84.   }
85.   
86.   //resetMatrix();
87. 
    
88.   beginShape();
89.   fill(#D3E2E5);
90. 
    
91.   for (int i=0; i<Segments+4; i++) {
92.     curveVertex(x[i % Segments], y[i % Segments]);
93.   }
94. 
    
95. 
    
96.   endShape();
97.   
98. }