Problem in designing collision response of 2D GUI images in unity.

Dear Folks,

Currently, I am working on a game where I need to design collision system for 2D GUI images in unity, just like below:


Actually I have implemented the collision detection code myself taking just 2 objects (e.g. DICE1 DICE2) but, I am getting problem in designing the collision response code. What I am doing, is very simple and my code looks like:

Code (csharp):

1.  
2. //DICE 1 MOVEMENT
3. if(!dice1_right_move_flag){
4.     dice1_x += dice1_speed * Time.deltaTime;
5. }else{
6.     dice1_x -= dice1_speed * Time.deltaTime;
7. }
8.  
9. if(!dice1_up_move_flag){
10.     dice1_y += dice1_speed * Time.deltaTime;
11. }else{
12.     dice1_y -= dice1_speed * Time.deltaTime;
13. }
14.        
15.         if(dice1_x < 0){
16.             dice1_right_move_flag = false;
17.         } else if((dice1_x + dice1_image.width)> Screen.width){
18.             dice1_right_move_flag = true;
19.         }
20.        
21.         if(dice1_y < 0){
22.             dice1_up_move_flag = false;
23.         } else if((dice1_y + dice1_image.height)> Screen.height){
24.             dice1_up_move_flag = true;
25.         }
26.  
27.  
28. //DICE 2 MOVEMENT
29. if(!dice2_right_move_flag){
30.     dice2_x += dice2_speed * Time.deltaTime;
31. }else{
32.     dice2_x -= dice2_speed * Time.deltaTime;
33. }
34.  
35. if(!dice2_up_move_flag){
36.     dice2_y += dice2_speed * Time.deltaTime;
37. }else{
38.     dice2_y -= dice2_speed * Time.deltaTime;
39. }
40.        
41.         if(dice2_x < 0){
42.             dice2_right_move_flag = false;
43.         } else if((dice2_x + dice2_image.width)> Screen.width){
44.             dice2_right_move_flag = true;
45.         }
46.        
47.         if(dice2_y < 0){
48.             dice2_up_move_flag = false;
49.         } else if((dice2_y + dice2_image.height)> Screen.height){
50.             dice2_up_move_flag = true;
51.         }
52.  
53. //COLLISION OF DICE 1 WITH DICE 2
54.  
55. // 1
56. if ((dice1_x >= dice2_x)  (dice1_x < dice2_x + dice2_image.width)  (dice1_y >= dice2_y)  (dice1_y < dice2_y + dice2_image.height)) {
57.             dice1_up_move_flag = true;
58.             dice1_right_move_flag = true;
59.            
60.             dice2_up_move_flag = false;
61.             dice2_right_move_flag = false;
62.             print ("1");
63. // 2
64. } else if ((dice1_x + dice1_image.width >= dice2_x) (dice1_x+ dice1_image.width < dice2_x+ dice2_image.width)  (dice1_y >= dice2_y)  (dice1_y < dice2_y + dice2_image.height)) {
65.             dice1_up_move_flag = true;
66.             dice1_right_move_flag = true;
67.            
68.             dice2_up_move_flag = false;
69.             dice2_right_move_flag = false;
70.             print ("2");
71. // 3
72. } else if ((dice1_x >= dice2_x) (dice1_x < dice2_x+ dice2_image.width) (dice1_y+ dice1_image.height >= dice2_y) (dice1_y+ dice1_image.height < dice2_y+ dice2_image.height)) {
73.             dice1_up_move_flag = true;
74.             dice1_right_move_flag = true;
75.            
76.             dice2_up_move_flag = false;
77.             dice2_right_move_flag = false;
78.             print ("3");
79. // 4
80. } else if ((dice1_x + dice1_image.width >= dice2_x)  (dice1_x + dice1_image.width < dice2_x + dice2_image.width)  (dice1_y +  dice1_image.height >= dice2_y)  (dice1_y + dice1_image.height < dice2_y + dice2_image.height)) {
81.             dice1_up_move_flag = true;
82.             dice1_right_move_flag = true;
83.            
84.             dice2_up_move_flag = false;
85.             dice2_right_move_flag = false;
86.             print ("4");
87. // 5
88. } else {
89.  
90. }
91.  
92.  

I am doubtful regarding my collision response conditions, basically the last 2 conditions of collision code. It would be great if you people help me in figuring out the problem. Please help.

Looking forward for an early reply.

Regards,
Atul Prakash Singh