Pleease help

I have it so the "tdogg" video appears on start-up and then using the Key press method it switches from videos, but when I change  keyPressed to a new statement I'm not sure how and where to define it to make it work. I have a command coming in from OSCulator which defines that, but then I feel I need to start using booleans etc. which is where I get confused. Can something PLEASE tell me where I am going wrong!?

In desperate need of help, and I know how good you guys are with Processing, thanks so much!

2. import codeanticode.gsvideo.*; // import GSvideo Library
3. import oscP5.*; // import oscP5 Library
4. import netP5.*; // import netP5 Library (part of oscP5 Library)
5. 
   
6. OscP5 osculator;
7. GSMovie player;
8. 
   
9. //global variables
10. int direction;
11. 
    
12. boolean pressUp;
13. boolean pressRight;
14. boolean pressLeft;
15. 
    
16. public void setup() {
17.   size(640, 480);
18.   background(0);
19.   
20.   // osculator setup
21.   osculator = new OscP5(this, 9000);
22.   osculator.plug(this, "buttonLeft", "/wii/1/button/Left");
23.   osculator.plug(this, "buttonRight", "/wii/1/button/Right");
24.   osculator.plug(this, "buttonUp", "/wii/1/button/Up");
25. 
    
26.   // GSvideo setup
27.   player = new GSMovie(this, "tdogg.mov");
28.   player.loop();
29. }
30. 
    
31. void draw() {
32.   image(player, 0, 0, width, height);
33.   
34.     if (pressLeft){
35.   buttonLeft();
36.   }
37.  
38.   if (pressRight){
39.   buttonRight();
40.   }
41. 
    
42.   if (pressUp){
43.   buttonUp();
44.   }
45. }
46. 
    
47. 
    
48. // THIS KEY PRESS WORKS FINE
49. void keyPressed() {
50.   if (key == '1') {  player = new GSMovie (this, "tdogg.mov");} 
51.   if (key == '2') {  player = new GSMovie (this, "transit.mov");}
52.   if (key == '3') {  player = new GSMovie (this, "bunny.mov");}
53.   movie.loop();
54. }
55. 
    
56. 
    
57. 
    
58. //I TRIES TO REPLICATE THE WORKING KEYPRESS WITH MY OWN STATEMENTS
59. void buttonLeft() {
60.     player = new GSMovie (this, "tdogg.mov");
61.   }
62. 
    
63. void buttonRight() { 
64.     player = new GSMovie (this, "bunny.mov");
65.   }
66.   
67. void buttonUp () { 
68.     player = new GSMovie (this, "transit.mov");
69.   }