2. int randw = (int)random(30, 50);
3. int randh = (int)random(randw-20, randw);
4. 
   
5. class fish{
6.   int x, y;
7.   int h;
8.   int w;
9.   float dir;
10.   int r;
11.   int g;
12.   int b;
14.   fish(int p1, int p2, int p3, int p4, float p5, int p6, int p7, int p8){
15.     x = p1;
16.     y = p2;
17.     h = p3;
18.     w = p4;
19.     dir = p5;
20.     r = p6;
21.     g = p7;
22.     b = p8;
23. }
24. }
25. 
    
26. //useful constants for Assigment 2
27. final int TANK_LEFT = 100;   
28. final int TANK_RIGHT = 900;
29. final int WATER_TOP = 300;
30. final int WATER_BOTTOM = 700;
31. 
    
32. void setup(){ 
33.  
34.   fish f1;
35.   fish f2;
36.   fish f3;
37.   fish f4;
38.   fish f5;
39. 
    
40.   size(1000, 800);
41.     
42.     //parameters for the class so it varies for each face drawn
43.     
44.     f1 = new fish((int)random(TANK_LEFT+randw, TANK_RIGHT-(randw/2)), (int)random(WATER_TOP, WATER_BOTTOM -(randh/2)), (int)random(randw-20, randw), (int)random(30, 50), random(0, TWO_PI), (int)random(0, 256), (int)random(0, 256), (int)random(0, 256));
45.     f2 = new fish((int)random(TANK_LEFT+randw, TANK_RIGHT-(randw/2)), (int)random(WATER_TOP, WATER_BOTTOM -(randh/2)), (int)random(randw-20, randw), (int)random(30, 50), random(0, TWO_PI), (int)random(0, 256), (int)random(0, 256), (int)random(0, 256));
46.     f3 = new fish((int)random(TANK_LEFT+randw, TANK_RIGHT-(randw/2)), (int)random(WATER_TOP, WATER_BOTTOM -(randh/2)), (int)random(randw-20, randw), (int)random(30, 50), random(0, TWO_PI), (int)random(0, 256), (int)random(0, 256), (int)random(0, 256));
47.     f4 = new fish((int)random(TANK_LEFT+randw, TANK_RIGHT-(randw/2)), (int)random(WATER_TOP, WATER_BOTTOM -(randh/2)), (int)random(randw-20, randw), (int)random(30, 50), random(0, TWO_PI), (int)random(0, 256), (int)random(0, 256), (int)random(0, 256));
48.     f5 = new fish((int)random(TANK_LEFT+randw, TANK_RIGHT-(randw/2)), (int)random(WATER_TOP, WATER_BOTTOM -(randh/2)), (int)random(randw-20, randw), (int)random(30, 50), random(0, TWO_PI), (int)random(0, 256), (int)random(0, 256), (int)random(0, 256));
49.     
50.     makeFish(f1);
51.     makeFish(f2);
52.     makeFish(f3);
53.     makeFish(f4);
54.     makeFish(f5); 
55. }
56. 
    
57. /*drawFish draws a fish based on the provided parameters.
58. Parameters:
59.   int x - x coordinate of fish (centre of body)
60.   int y - y coordinate of fish
61.   int w - width of fish's body (tail is w/2 more)
62.   int h - height of fish's body and tail
63.   int dir - 0 = right, 1 = left
64.   int r,g,b - fill colour of fish
65. */
66. void makeFish(fish f) {
67.   stroke(0);
68.   fill(f.r, f.g, f.b);
69.   ellipse(f.x, f.y, f.w, f.h); //body
70. 
    
71.   int tail; //x-offset for tail's connection to the body
72.   if (f.dir == (random(PI*0.5, PI*1.5))) { //facing right
73.     tail = -(f.w/2); //tail is to the left of the body
74. 
    
75.     //draw an eye on the right side of the head
76.     fill(255);
77.     ellipse(f.x+(f.w*.25), f.y-(f.h*.25), 10, 10);
78.     fill(0);
79.     ellipse(f.x+(f.w*.25), f.y-(f.h*.25), 5, 5);
80.   }
81.   
82.   else  { //facing left
83.     tail = (f.w/2); //tail is to the right of the body
84.     
85.     //draw an eye on the left side of the head
86.     fill(255);
87.     ellipse(f.x-(f.w*.25), f.y-(f.h*.25), 10, 10);
88.     fill(0);
89.     ellipse(f.x-(f.w*.25), f.y-(f.h*.25), 5, 5);
90.   }
91.   //draw the tail using the offset calculated above
92.   fill(f.r, f.g, f.b);
93.   triangle(f.x+tail, f.y, (f.x+(2*tail)), (f.y+(f.h/2)), (f.x+(2*tail)), (f.y-(f.h/2)));
94. }

In line 9, i declare a "dir" variable. for direction in my class called "fish" (I think i'm using the terminology right here.) 
Then in line 44-48, 5th parameter in, I have something writte as the following: random(0, TWO_PI). 

Further down I have line 72 basically saying when the direction variable is between PI*0.5 and PI*1.5, then the object (fish) will have a "left" orientation. 

On line 82, I have an else statement. I want this else statement to basically mean the following: For all other values between 0 and PI*2 that is not between  PI*0.5 and PI*1.5 the object (fish) will have a "right" orientation.

My logic is probably wrong.

Everytime I try to run it, all I get is fishes having a "left" orientation.