Swipe Gesture / Direction / Over an Object

Hello,

I have a few questions for the Unity Masters out there. I am looking at doing a Swipe Gesture over a rigged tree branch that i have rigged up with IK from maya.

First, i have used a touch phase, with Began, moved and ended, but what i wanted to know is how to just have that swipe motion be detected by just the one tree branch because in the end i am going to want to be able to swipe over all three different branches, will i have to do a ray cast from the point of the first touch and if it hits that tree, then just that tree grabs the movement?

Second, I wanted to know if there is a simple way to grab the direction of the Swipe, because i really want it in the end to have the direction of the swipe control the wind (velocity) in the direction of where i touched. Here is a little bit of code that i wrote for the swipe, if anyone could see if its going to work, or if im going in the wrong direction.

thanks

Dan

Code (csharp):

1.  
2.  
3. var Wind : GameObject;
4. var startPosX = 0;
5. var endPosX = 0;
6. var startPosZ = 0;
7. var endPosZ = 0;
8. function Update () {
9.  
10. for (var event : iPhoneTouch in iPhoneInput.touches){
11.        
12.         if (event.phase == iPhoneTouchPhase.Began){
13.             startPosX = event.position.x;
14.             startPosZ = event.position.y;
15.             //print(startPosX);
16.         }
17.        
18.         if (event.phase == iPhoneTouchPhase.Ended){
19.             endPosX = event.positionDelta.x;
20.             endPosZ = -event.positionDelta.y;
21.            
22.             //print(startPos + " : " + endPos);
23.             if(startPosX > 0){
24.             print ("Negitive Direction");
25.             rigidbody.velocity.x = -0.2;
26.            
27.             if(endPosX > 0){
28.             print ("Positive Direction");  
29.             rigidbody.velocity.x = 0.2;
30.            
31.             if(startPosZ > 0){
32.             print ("Positive Direction Z");
33.             rigidbody.velocity.z = 0.2;
34.            
35.             if(endPosZ > 0){
36.             print ("Negative Direction Z");
37.             rigidbody.velocity.z = 0.2;
38.            
39.            
40.                         }
41.                     }
42.                 }  
43.             }                              
44.         }
45.     }
46. }
47.  

 

The way I would probably do it is by creating a series of explosions on the side the wind is coming from. This will catch any branches with Rigidbody components and move them for you. The reason to make it a series with some variability is to create that illusion of non-constancy of a wind. You find the explanation and an example to get every Rigidbody within the explosion here online:

http://unity3d.com/support/documentation/ScriptReference/Rigidbody.AddExplosionForce.html

You can also find it in your own documentation under Rigidbody.

 

Hi, all,

Would either of you have a solution for a swipe-to-move camera script? I have been searching and experimenting for a while now, but haven't had much success.

Thanks,

Greg

 

HI, here is a script I use to detect left and right "swipes" in the upper or bottom part of the Iphone screen (vertical horientation), hope it helps...

Code (csharp):

1. var touch1 : float;
2. var touch2 : float;
3. var touch3 : float;
4. var bloccoKO : TouchControllerRag;
5. var detonatore : Transform;
6.  
7. var regular = 1;
8. var bloccoSgambetto = 0;
9.  
10. var mov = 0.00;
11. var touchActive = 0;
12. function Start() {
13.    
14.     regular = 1;
15. }
16.  
17. function Update () {
18.    
19.    
20.  
21.    if (touchActive <1) {
22.    
23.    for(touch in iPhoneInput.touches){
24.    
25. if (regular ==1) {  
26.    
27.    
28.        
29.       if(touch.phase == iPhoneTouchPhase.Began) {
30.         touch1 = touch.position.x;
31.         touch3 = touch.position.y;
32.       }
33.        if(touch.phase == iPhoneTouchPhase.Moved) {
34.         touch2 = touch.position.x;
35.         if ( touch3 <220) {                      //lower part of the screen
36.            
37.         if (touch2 - touch1 > 70 ) {
38.                 bloccoSgambetto = 1;
39.                 bloccoKO.SgambettoDes();
40.       }
41.         if (touch1 - touch2 > 70 ) {
42.                 bloccoSgambetto = 1;
43.                 bloccoKO.SgambettoSin();
44.       }
45.  
46.         }
47. if ( touch3 >280) {  //upper part of the screen
48. if (touch2 - touch1 > 40 ) {
49.     bloccoKO.SchiaffoDestra();
50. }
51. if (touch1 - touch2 > 40 ) {
52.     bloccoKO.SchiaffoSinistra();
53. }
54.  
55.  
56. }  
57.         }
58.  
59.      }
60.      
61.      
62. }
63.      
64.      
65.       }
66.  
67.    }
68.            
69. }

while copyng and deleting the totally useless parts of my code might have lost some brackets or left to many but the basics of swipes gestures are here....

 

Thanks, taio84! I appreciate you posting that. I think it will be a good place to start.
Thanks,

Greg

 

THANK you all so much, i will give this a try tomorrow, and now i see where i was going wrong....

again thanks so much

 

I just wanted to pipe in and say thanks to taio84 also. This totally helped me as well!

 

Well, I feel like I'm missing something.....

In the above script, what does "var bloccoKO : TouchControllerRag; " refer to? I get an error on this line ... Am I missing something?

 

Thanks for this. It helped a lot!