Mouse IPoint trigger

Hello,

I have some code basic using the IPointHandler. I use the IPointEnterHandler to reset a entered flag then IPointDownHandler to set the button entered. The problem I have is sometimes with I toggle between two buttons with the script. It seem to unequip. For example, click A, B, A, B, if I click A again the item drops. I am assuming on OnPointerDown it saves the mouse location on OnPointerUp it just check if the mouse was up outside of the area. I don't think it testing the RectTransform to the mouse position correctly. Additionally if I could check that properly, I wouldn't need OnPointerClick.

Any thoughts.

Vivienne

Code (CSharp):

1. // TerranPrime AR-548
2. // Space Survival Game
3. // Coded by Vivienne Anthony
4. //
5. // Spacd Survival Game
6. //
7. // For Protocol Seven Productions 2017
8. // Copyrighted(2017) All Rights Reserved
9. //
10.  
11. using System.Collections;
12. using System.Collections.Generic;
13. using UnityEngine;
14. using UnityEngine.EventSystems;
15.  
16. public class EquipButtonScript : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerClickHandler,IPointerDownHandler,IPointerUpHandler
17. {
18.     private Player m_Player;
19.     public int equipslot;
20.  
21.     private bool m_Dragging;
22.  
23.     private Rect m_Rect;
24.     private Vector3 m_LastTouch;
25.     private bool m_Entered;
26.  
27.     // Use this for initialization
28.     void Start ()
29.     {
30.         // Set m_player to null when starting
31.         m_Player = null;
32.  
33.         m_Dragging = false;
34.  
35.         RectTransform rectTransform = GetComponent<RectTransform> ();
36.  
37.         // get rectinformation
38.         m_Rect = RectTransformToScreenSpace (rectTransform);          
39.  
40.         m_Dragging = false;
41.     }
42.  
43.  
44.     // Set equip slot
45.     public void SetEquipSlot (int i)
46.     {
47.         // Set button equip slot to assigned slot
48.         equipslot = i;
49.     }
50.  
51.     // On pointer enter
52.     public void OnPointerEnter (PointerEventData eventData)
53.     {      
54.         // Reset enter flag
55.         m_Entered = false;
56.     }
57.  
58.     public void OnPointerDown (PointerEventData eventData)
59.     {  
60.         // Save mouse position  
61.         m_LastTouch = Input.mousePosition;
62.  
63.         // Set Enter flag
64.         m_Entered = true;
65.     }
66.  
67. // On Pointer up
68.     public void OnPointerUp (PointerEventData eventData)
69.     {        
70.         // Make sure the button was entered
71.         if (m_Entered == false)
72.             return;
73.            
74.         // Get Mouse Position
75.         Vector3 mousePosition = Input.mousePosition;
76.  
77.         // Check if the mouse position changed.
78.         if (m_LastTouch != mousePosition) {
79.  
80.             // calc mouse position
81.             mousePosition = Camera.main.ScreenToWorldPoint (new Vector3 (mousePosition.x, mousePosition.y, 0));
82.  
83.             mousePosition.x += Screen.width / 2;
84.             mousePosition.y += Screen.height / 2;
85.  
86.             Debug.Log ("x " + mousePosition.x + " " + m_Rect.x);
87.             Debug.Log ("y " + mousePosition.y + " " + m_Rect.y);
88.  
89.             // Check coordinate here
90.             if ((mousePosition.x < m_Rect.x - (m_Rect.size.x / 2) || mousePosition.x > m_Rect.x + (m_Rect.size.x / 2)) &&
91.                 (mousePosition.y < m_Rect.y - (m_Rect.size.y / 2) || mousePosition.y > m_Rect.y + (m_Rect.size.y / 2))) {
92.            
93.                 // UnEquip
94.                 UnEquipMe ();
95.             }
96.  
97.             // Reset flag
98.             m_Entered = false;
99.         } else {
100.             EquipMe ();
101.         }
102.        
103.     }
104.  
105.     public void OnPointerClick (PointerEventData eventData)
106.     {      
107.         // If click
108.         EquipMe ();
109.  
110.         // Reset entered flag
111.         m_Entered = false;
112.     }
113.  
114.     public static Rect RectTransformToScreenSpace (RectTransform transform)
115.     {
116.         Vector2 size = Vector2.Scale (transform.rect.size, transform.lossyScale);
117.         float x = transform.position.x + transform.anchoredPosition.x;
118.         float y = Screen.height - transform.position.y - transform.anchoredPosition.y;
119.  
120.         return new Rect (x, y, size.x, size.y);
121.     }
122.  

 

Could you explain what you're trying to do ? Just a few "steps" about what you wish was happening..

 

I resolved it I think. Basically a UI interface area that contains a image with a button component. I can display four slots and equip a item that updates a area. Touching a area and dragging out, would unequip and drop the game object. Touching would simply equip a game object. Originally I was using the Button component to detect a click and calling a function. Also, I then tried just use the IPointClickHandler. Which failed.

Code (CSharp):

1. // On pointer enter
2.     public void OnPointerEnter (PointerEventData eventData)
3.     {      
4.         // Reset enter flag
5.         m_Entered = false;
6.     }
7.  
8.     public void OnPointerDown (PointerEventData eventData)
9.     {  
10.         // Save mouse position  
11.         m_LastTouch = Input.mousePosition;
12.  
13.         // Set Enter flag
14.         m_Entered = true;
15.     }
16.  
17.     // On Pointer up
18.     public void OnPointerUp (PointerEventData eventData)
19.     {      
20.         // Make sure the button was entered
21.         if (m_Entered == false)
22.             return;
23.          
24.         // Get Mouse Position
25.         Vector3 mousePosition = Input.mousePosition;
26.  
27.         // Check if the mouse position changed.
28.         if (m_LastTouch != mousePosition) {
29.  
30.             // test drag out
31.             if (RectTransformUtility.RectangleContainsScreenPoint (
32.                     GetComponent<RectTransform> (), mousePosition, null
33.                 ) == false) {
34.                 Debug.Log ("DragOut");  
35.                 UnEquipMe ();
36.             }
37.         } else {
38.             EquipMe ();
39.         }
40.  
41.         m_Entered = false;
42.      
43.     }
44.  

The solution was using the RectTransform component and passing the mouseposition to it. Rough version.

 

Okay, cool.. if it's resolved, I"m glad

 

The start of this video shows what I mean.

 

Cool