I'm getting the "Cannot make a static reference to the non-static method" error, and was wondering if someone could help me with it. I know its a really simple error to fix, but for some reason, I'm having trouble getting it to place and i'm getting frustrated.

2. int antNum = 10;          // Set the number of ants
3. int faderate = 2;         // Set background redraw opacity
4. Ant[] antList;            // Create a list to hold the ants
5. 
   
6.   
7. void setup(){
8.   size(500,500);
9.   background(255);
10.   smooth();
11.   
12.   //Make a list of ants
13.   antList = new Ant[antNum];
14.   
15.   //Make a bunch of ants and put them in the ant list
16.   for (int i = 0; i < antNum; i ++){
17.     Ant put = new Ant();
18.     put.x = width/2;
19.     put.y = height/2;
20.     put.speed = 3;
21.     put.antSize = 5;
22.     
23.     antList[i] = put;
24.     
25.    }
26.   
27.   
28.   
29. }
30. 
    
31. void draw(){
32.   fill(255,255,255,faderate);  //Rectangle fadeaway
33.   rect(0,0,width, height);
34.   for (int i =0; i <antNum; i ++) {
35.     Ant currentAnt = antList[i];
36.     currentAnt.walk();
37.   }
38.   
39. 
    
40.   
41. }
42.   //Place Food
43. void mousePressed() {
44.   Food.addFood(mouseX,mouseY);
45. 
    
46. }  
47. 
    
48. 
    
49. //Saves a screenshot of the ants
50. void keyPressed() {
51.   if (key== 's'){
52.     
53.   save(month()+":"+day()+":"+year()+"_"+hour()+"."+minute()+"."+second()+"_"+"ants.png");
54.   }
55. }
56. 
    

and the code for the "food" class is:

2. class Food {
3.   
4.   float range = 25; 
5.   
6. Food(){
7.   
8.  }
9.  
10.   void addFood(int x, int y){
11.     //Draw the food
12.     fill(255,69,0,25);
13.     noStroke();
14.     rectMode(CENTER);
15.     rect(mouseX,mouseY,8,8);
16.     
17.   }
18.   
19. }

I know its a dumb problem to be having, but rawr.

If you wanted the ant class too, just to see how this actually runs:

2. class Ant {
3.   
4.   float x;
5.   float y;
6.   float speed = 1;
7.   float antSize = 1;
8.  
9.  
10.  Ant(){
11.    
12.    
13.  }
14.  
15.  void walk(){
16.    //Update the position
17.    x = x + random(-speed, speed);
18.    y = y + random(-speed,speed);
19.    
20.    //Draw the ant
21.    fill(0,0,0);
22.    noStroke();
23.    ellipse(x,y,antSize/1.5,antSize/1.5);
24.    
25.    
26.    //Bounding box
27.    if (x < 0) {
28.      x = 0;
29.    }
30.    if (y < 0) {
31.      y = 0;
32.    }
33.    if (x > width) {
34.      x = width;
35.    }
36.    if (y > height) {
37.      y = height;
38.    }
39.    
40.    
41.    
42.  }
43.  
44. }