1 using System;
2 using
UnityEngine;
3 using
UnityEngine.EventSystems;
4 using
UnityEngine.UI;
5
6 namespace
UnityStandardAssets.CrossPlatformInput
7 {
8     
[RequireComponent(typeof(Image))]
9     
public class TouchPad : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
10     {
11         
// Options for which axes to use
12         
public enum AxisOption
13         {
14             Both,
// Use both
15             OnlyHorizontal,
// Only horizontal
16             OnlyVertical
// Only vertical
17         }
18
19
20         
public enum ControlStyle
21         {
22             Absolute,
// operates from teh center of the image
23             Relative,
// operates from the center of the initial touch
24             Swipe,
// swipe to touch touch no maintained center
25         }
26
27
28         
public AxisOption axesToUse = AxisOption.Both; // The options for the axes that the still will use
29         
public ControlStyle controlStyle = ControlStyle.Absolute; // control style to use
30         
public string horizontalAxisName = "Horizontal"; // The name given to the horizontal axis for the cross platform input
31         
public string verticalAxisName = "Vertical"; // The name given to the vertical axis for the cross platform input
32         
public float Xsensitivity = 1f;
33         
public float Ysensitivity = 1f;
34
35         Vector3 m_StartPos;
36         Vector2 m_PreviousDelta;
37         Vector3 m_JoytickOutput;
38         
bool m_UseX; // Toggle for using the x axis
39         
bool m_UseY; // Toggle for using the Y axis
40         CrossPlatformInputManager.VirtualAxis m_HorizontalVirtualAxis;
// Reference to the joystick in the cross platform input
41         CrossPlatformInputManager.VirtualAxis m_VerticalVirtualAxis;
// Reference to the joystick in the cross platform input
42         
bool m_Dragging;
43         
int m_Id = -1;
44         Vector2 m_PreviousTouchPos;
// swipe style control touch
45
46
47 #
if !UNITY_EDITOR
48     
private Vector3 m_Center;
49     
private Image m_Image;
50 #
else
51         Vector3 m_PreviousMouse;
52 #endif
53
54         
void OnEnable()
55         {
56             CreateVirtualAxes();
57         }
58
59         
void Start()
60         {
61 #
if !UNITY_EDITOR
62             m_Image = GetComponent<Image>();
63             m_Center = m_Image.transform.position;
64 #endif
65         }
66
67         
void CreateVirtualAxes()
68         {
69             
// set axes to use
70             m_UseX = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyHorizontal);
71             m_UseY = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyVertical);
72
73             
// create new axes based on axes to use
74             
if (m_UseX)
75             {
76                 m_HorizontalVirtualAxis =
new CrossPlatformInputManager.VirtualAxis(horizontalAxisName);
77                 CrossPlatformInputManager.RegisterVirtualAxis(m_HorizontalVirtualAxis);
78             }
79             
if (m_UseY)
80             {
81                 m_VerticalVirtualAxis =
new CrossPlatformInputManager.VirtualAxis(verticalAxisName);
82                 CrossPlatformInputManager.RegisterVirtualAxis(m_VerticalVirtualAxis);
83             }
84         }
85
86         
void UpdateVirtualAxes(Vector3 value)
87         {
88             
value = value.normalized;
89             
if (m_UseX)
90             {
91                 m_HorizontalVirtualAxis.Update(
value.x);
92             }
93
94             
if (m_UseY)
95             {
96                 m_VerticalVirtualAxis.Update(
value.y);
97             }
98         }
99
100
101         
public void OnPointerDown(PointerEventData data)
102         {
103             m_Dragging =
true;
104             m_Id = data.pointerId;
105 #
if !UNITY_EDITOR
106         
if (controlStyle != ControlStyle.Absolute )
107             m_Center = data.position;
108 #endif
109         }
110
111         
void Update()
112         {
113             
if (!m_Dragging)
114             {
115                 
return;
116             }
117             
if (Input.touchCount >= m_Id + 1 && m_Id != -1)
118             {
119 #
if !UNITY_EDITOR
120
121             
if (controlStyle == ControlStyle.Swipe)
122             {
123                 m_Center = m_PreviousTouchPos;
124                 m_PreviousTouchPos = Input.touches[m_Id].position;
125             }
126             Vector2 pointerDelta =
new Vector2(Input.touches[m_Id].position.x - m_Center.x , Input.touches[m_Id].position.y - m_Center.y).normalized;
127             pointerDelta.x *= Xsensitivity;
128             pointerDelta.y *= Ysensitivity;
129 #
else
130                 Vector2 pointerDelta;
131                 pointerDelta.x = Input.mousePosition.x - m_PreviousMouse.x;
132                 pointerDelta.y = Input.mousePosition.y - m_PreviousMouse.y;
133                 m_PreviousMouse =
new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0f);
134 #endif
135                 UpdateVirtualAxes(
new Vector3(pointerDelta.x, pointerDelta.y, 0));
136             }
137         }
138
139
140         
public void OnPointerUp(PointerEventData data)
141         {
142             m_Dragging =
false;
143             m_Id = -
1;
144             UpdateVirtualAxes(Vector3.zero);
145         }
146
147         
void OnDisable()
148         {
149             
if (CrossPlatformInputManager.AxisExists(horizontalAxisName))
150                 CrossPlatformInputManager.UnRegisterVirtualAxis(horizontalAxisName);
151
152             
if (CrossPlatformInputManager.AxisExists(verticalAxisName))
153                 CrossPlatformInputManager.UnRegisterVirtualAxis(verticalAxisName);
154         }
155     }
156 }


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