Hey guys, so this is the last thing I need to do to complete my project.
My code is broken up into 4 tabs (project9,ball,human,sprite)

http://www.openprocessing.org/sketch/78586

^^ you can download my code here!  I posted the code here but there is way too much and it's overwhelming.

Basically, I want my sprite to be able to collide with the falling missiles and the score to go up by 1.

(another small problem I have is that the missiles tend to all fall in one spot and I can't figure out how to randomize it)

Download "Marathonapocalypse"  Thank you for your time!!

Hey guys! So I'm creating a "predator/prey" simulation! I got most of this code down! I'm sure just struggling with a couple things. I want to make it so 

1. the amount of images on screen is random every time
2. im3 is scared of img2, and img 2 is scared of img1

(img3 is a block of cheese, img2 is a mouse, and img1 is a cat) 

3. I dont want them to leave my screen! For some reason they keep going off screen at the bottom. Also, these images used to be ellipses but I changed them to actual pictures so just ignore all the ellipse stuff

HERES MY CODE! thank you so much for your time

2. PImage img;
3. PImage img1;
4. PImage img2;
5. PImage img3;
6. 
   
7. 
   
8. 
   
9. float pY = 0; // variable that controls y coordinate of prey ellipse
10. float pX = 0; // variable that controls x coordinate of prey ellipse
11. 
    
12. float gY = 0; // variable that controls y coordinate of green predator ellipse
13. float gX = 0; // variable that controls x coordinate of green predator ellipse
14. 
    
15. float rY = 0; // variable that controls y coordinate of red predator ellipse
16. float rX = 0; // variable that controls x coordinate of red predator ellipse
17. 
    
18. float pMoveY; // variable that changes in the y to move the prey ellipse 
19. float pMoveX; // variable that changes in the x to move the prey ellipse 
20. 
    
21. float gMoveY; // variable that changes in the y to move the green predator ellipse 
22. float gMoveX; // variable that changes in the x to move the green predator ellipse 
23. 
    
24. float rMoveY; // variable that changes in the y to move the red predator ellipse 
25. float rMoveX; // variable that changes in the x to move the red predator ellipse 
26. 
    
27. float maxSpeed = 4.0; // variable that sets the maximum speed at which creatures can move
28. float radius = 80.0; // variable that sets the size of the ellipses
29. boolean pScared = false; // boolean variable that lets the white ellipse to remain scared
30. 
    
31. 
    
32. 
    
33. void setup() { 
34.   
35.   img = loadImage("rave.jpg");
36.   img1 = loadImage("nyan.png");
37.   img2 = loadImage("mouse.png");
38.   img3 = loadImage ("cheese.png");
39.   
40.   
41.   size(800, 600); // sets the size of the sketch
42.  
43.   
44.   
45.   pMoveX=random(-maxSpeed, maxSpeed); // sets the white ellipse speed in the x
46.   pMoveY=random(-maxSpeed, maxSpeed); // sets the white ellipse speed in the y
47.   
48.   gMoveX=random(-maxSpeed, maxSpeed); // sets the green ellipse speed in the x
49.   gMoveY=random(-maxSpeed, maxSpeed); // sets the green ellipse speed in the y
50.   
51.   rMoveX=random(-maxSpeed, maxSpeed); // sets the red ellipse speed in the x
52.   rMoveY=random(-maxSpeed, maxSpeed); // sets the red ellipse speed in the y
53.   
54.   rX=random(width-radius); // sets the starting position of the red ellipse in the x
55.   rY=random(height-radius); // sets the starting position of the red ellipse in the y
56.   
57.   gX=random(width-radius); // sets the starting position of the green ellipse in the x
58.   gY=random(height-radius); // sets the starting position of the green ellipse in the y
59.   
60.   pX=random(radius*2, width-radius*2);  // sets the starting position of the white ellipse in the x
61.   pY=random(radius*2, height-radius*2);  // sets the starting position of the white ellipse in the y
62.   
63.   ellipseMode(RADIUS); // sets ellipses to draw using the last two numbers as radius width and radius height
64. }
65. 
    
66. 
    
67. 
    
68. void draw() {
69.   
70.    background(img);
71.   
72.   
73.   //////////RED "PREDATOR" ELLIPSE LOGIC
74.   
75.   rX+=rMoveX; // these 2 lines move the red ellipse
76.   rY+=rMoveY;
77.   if (rX>width-radius || rX<radius) { // these two if statements check to see if the red ellipse is still on screen and if not, then reverses the direction in which it is moving
78.     rMoveX=-rMoveX;
79.   }
80.   if (rY>width-radius || rY<radius) {
81.     rMoveY=-rMoveY;
82.   }
83.   fill(255, 0, 0); //sets the fill to red so the red ellipse is drawn as red
84.   image(img1, rX, rY, radius, radius); // draws red ellipse
85.   
86.   
87.   //////////GREEN "PREDATOR" ELLIPSE LOGIC
88.   
89.   
90.   gX+=gMoveX; // these 2 lines move the green ellipse
91.   gY+=gMoveY;
92.   if (gX>width-radius || gX<radius) { // these two if statements check to see if the green ellipse is still on screen and if not, then reverses the direction in which it is moving
93.     gMoveX=-gMoveX;
94.   }
95.   if (gY>width-radius || gY<radius) {
96.     gMoveY=-gMoveY;
97.   }
98.   fill(0, 255, 0);
99.   image(img3, gX, gY, radius, radius);
100.   
101.     
102.   //////////WHITE "PREY" ELLIPSE LOGIC
103.   
104.   
105.   pX+=pMoveX;  // these 2 lines move the white "prey" ellipse
106.   pY+=pMoveY;
107.   if (pX>width-radius*2 || pX<radius*2) { // these two if statements check to see if the white ellipse is still on screen and if not, then reverses the direction in which it is moving
108.     pMoveX=-pMoveX;
109.   }
110.   if (pY>width-radius*2 || pY<radius*2) {
111.     pMoveY=-pMoveY;
112.   }
113.   if (dist(rX, rY, pX, pY)<radius*2 || dist(gX, gY, pX, pY)<radius*2) { // this if statement checks to see if the white ellipse is near either of the predator ellipses
114.     if (pScared==false) {
115.       pMoveY=-pMoveY; // if the white ellipse is close to a predator, then it reverses direction in the y
116.       pMoveX=-pMoveX; // if the white ellipse is close to a predator, then it reverses direction in the x
117.       pScared=true;
118.     }
119.   }
120.   else {
121.     pScared=false; // if the white ellipse will remain "scared" until it is not near either predator
122.   }
123.   if (pScared==true) { // if the white ellipse is "scared" then it remains yellow
124.     fill(255, 255, 0);
125.   }
126.   else { // // if the white ellipse is not "scared" then it is white
127.     fill(255);
128.   }
129.   image(img2, pX, pY, radius*2, radius*2); // draw the white ellipse
130. }

So we've been instructed to make a "paint toy" in my programming class. I'm trying to make a picture load with the press of a key. I want the image to load when I'm holding the key and clicking my mouse to paint the screen with the image.  I got the color changes to work but I can't seem to do the same with an image.  It runs when I play it, but the image doesn't show up.  I do get a bit of slow down though, which means something is working....

here is my code so far!