Merged in floatingjoystick (pull request #8)

Added a floating joystick (appears in a tap position)

Examples/FloatingJoystick/FloatingJoystick.png.meta

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Examples/FloatingJoystick/FloatingJoystick.unity.meta

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Examples/FloatingJoystick/FloatingJoystickTest.cs

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+/// Credit Tima Zhum
+
+using UnityEngine;
+
+#if CROSS_PLATFORM_INPUT
+using UnityStandardAssets.CrossPlatformInput;
+#endif
+
+namespace UnityEngine.UI.Extensions
+{
+	public class FloatingJoystickTest: MonoBehaviour
+	{
+		#if CROSS_PLATFORM_INPUT
+
+		/// <summary>
+		/// Update this instance
+		/// </summary>
+		void Update()
+		{
+			float _horizontalAxis = CrossPlatformInputManager.GetAxis("Horizontal");
+			float _verticalAxis = CrossPlatformInputManager.GetAxis("Vertical");
+
+			transform.position += 5f * (Vector3.right * _horizontalAxis + Vector3.up * _verticalAxis);
+		}
+
+		#endif
+	}
+}

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Examples/FloatingJoystick/README.txt

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+Getting started with a floating joystick
+
+1. Open a FloatingJoystick scene
+2. Import Unity Standard Assets/Cross Platfrom Input
+- Assets -> Import Package -> CrossPlatformInput
+3. Add scripting define symbols
+- Edit -> Project Settings -> Player -> Other Settings -> Scripting Define symbols
+- Add "CROSS_PLATFORM_INPUT;MOBILE_INPUT" (probably, there will be only "CROSS_PLATFORM_INPUT")
+- Press Enter to submit changes (!important)
+4. Play the scene

Scripts/Controls/FloatingJoystick/FloatingJoystick.cs

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+/// Credit Tima Zhum
+/// Based on Joystick.cs from Unity Standard Assets/Cross Platform Input
+
+using UnityEngine.EventSystems;
+
+#if CROSS_PLATFORM_INPUT
+using UnityStandardAssets.CrossPlatformInput;
+#endif
+
+namespace UnityEngine.UI.Extensions
+{
+	[RequireComponent(typeof(Image))]
+	[AddComponentMenu("Scripts/UnityEngine.UI.Extensions/FloatingJoystick")]
+	public class FloatingJoystick: MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IDragHandler
+	{		
+		/// <summary>
+		/// The joystick base point image
+		/// </summary>
+		[Tooltip("Pivot of a joystick (not required)")]
+		[SerializeField] private Image _joystickBasePoint = null;
+
+		#if CROSS_PLATFORM_INPUT
+
+		/// <summary>
+		/// The joystick image
+		/// </summary>
+		private Image _joystickImage = null;
+
+		/// <summary>
+		/// The joystick enabled state
+		/// </summary>
+		private bool _joystickEnabled = false;
+
+		/// <summary>
+		/// The previous joystick enabled state
+		/// </summary>
+		private bool _joystickPreviouslyEnabled = false;
+
+		/// <summary>
+		/// The last point event data
+		/// </summary>
+		private PointerEventData _pedLast = null;
+
+		/// <summary>
+		/// Start this instance
+		/// </summary>
+		protected void Awake()
+		{
+			_joystickImage = GetComponent<Image>();
+		}
+
+		/// <summary>
+		/// Update this instance
+		/// </summary>
+		protected void Update()
+		{		
+			if (_joystickImage) _joystickImage.enabled = _joystickEnabled;
+			if (_joystickBasePoint) _joystickBasePoint.enabled = _joystickEnabled;
+
+			if (_joystickEnabled)
+			{
+				if (!_joystickPreviouslyEnabled)
+				{
+					Vector3 _position = _pedLast.position;
+					ReinitializeAt(_position);
+					if (_joystickBasePoint) _joystickBasePoint.transform.position = _position;
+				}
+			}
+
+			_joystickPreviouslyEnabled = _joystickEnabled;
+		}
+
+		/// <summary>
+		/// Raises the pointer down event
+		/// </summary>
+		/// <param name="_ped">Ped</param>
+		public void OnPointerDownHelper(PointerEventData _ped) 
+		{
+			OnPointerDown(_ped);
+			_joystickEnabled = true;
+			_pedLast = _ped;
+		}
+
+		/// <summary>
+		/// Raises the pointer up event
+		/// </summary>
+		/// <param name="_ped">Ped</param>
+		public void OnPointerUpHelper(PointerEventData _ped) 
+		{
+			OnPointerUp(_ped);
+			_joystickEnabled = false;
+			_pedLast = _ped;
+		}
+
+		/// <summary>
+		/// Raises the drag event
+		/// </summary>
+		/// <param name="_ped">Ped</param>
+		public void OnDragHelper(PointerEventData _ped)
+		{
+			OnDrag(_ped);
+			_pedLast = _ped;
+		}
+
+		/// <summary>
+		/// Reinitializes the joystick at specific position
+		/// </summary>
+		/// <param name="_position">Position</param>
+		public void ReinitializeAt(Vector3 _position)
+		{
+			transform.position = _position;
+			Start();
+			OnDisable();
+			OnEnable();
+		}
+
+		#region STANDARDASSETSCODE
+
+		/*
+		 * This is a copy of the Joystick.cs script from Unity Standard Assets/Cross Platform Input
+		 * The reason of copying: original script is not designed for inheriting (required for extending the functionalities)
+		 */
+
+		public enum AxisOption
+		{
+			// Options for which axes to use
+			Both, // Use both
+			OnlyHorizontal, // Only horizontal
+			OnlyVertical // Only vertical
+		}
+
+		private int InitialMovementRange;
+		public int MovementRange = 100;
+		public AxisOption axesToUse = AxisOption.Both; // The options for the axes that the still will use
+		public string horizontalAxisName = "Horizontal"; // The name given to the horizontal axis for the cross platform input
+		public string verticalAxisName = "Vertical"; // The name given to the vertical axis for the cross platform input
+
+		Vector3 m_StartPos;
+		bool m_UseX; // Toggle for using the x axis
+		bool m_UseY; // Toggle for using the Y axis
+		CrossPlatformInputManager.VirtualAxis m_HorizontalVirtualAxis; // Reference to the joystick in the cross platform input
+		CrossPlatformInputManager.VirtualAxis m_VerticalVirtualAxis; // Reference to the joystick in the cross platform input
+
+
+		void OnEnable()
+		{
+			CreateVirtualAxes();
+		}
+
+		void Start()
+		{
+			m_StartPos = transform.position;
+		}
+
+		void UpdateVirtualAxes(Vector3 value)
+		{
+			var delta = m_StartPos - value;
+			delta.y = -delta.y;
+			delta /= MovementRange;
+			if (m_UseX)
+			{
+				m_HorizontalVirtualAxis.Update(-delta.x);
+			}
+
+			if (m_UseY)
+			{
+				m_VerticalVirtualAxis.Update(delta.y);
+			}
+		}
+
+		void CreateVirtualAxes()
+		{
+			// set axes to use
+			m_UseX = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyHorizontal);
+			m_UseY = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyVertical);
+
+			// create new axes based on axes to use
+			if (m_UseX)
+			{
+				m_HorizontalVirtualAxis = new CrossPlatformInputManager.VirtualAxis(horizontalAxisName);
+				CrossPlatformInputManager.RegisterVirtualAxis(m_HorizontalVirtualAxis);
+			}
+			if (m_UseY)
+			{
+				m_VerticalVirtualAxis = new CrossPlatformInputManager.VirtualAxis(verticalAxisName);
+				CrossPlatformInputManager.RegisterVirtualAxis(m_VerticalVirtualAxis);
+			}
+		}
+
+
+		public void OnDrag(PointerEventData data)
+		{
+			Vector3 newPos = Vector3.zero;
+
+			if (m_UseX)
+			{
+				int delta = (int)(data.position.x - m_StartPos.x);
+				delta = Mathf.Clamp(delta, - MovementRange, MovementRange);
+				newPos.x = delta;
+			}
+
+			if (m_UseY)
+			{
+				int delta = (int)(data.position.y - m_StartPos.y);
+				delta = Mathf.Clamp(delta, -MovementRange, MovementRange);
+				newPos.y = delta;
+			}
+
+			transform.position = new Vector3(m_StartPos.x + newPos.x, m_StartPos.y + newPos.y, m_StartPos.z + newPos.z);
+			UpdateVirtualAxes(transform.position);
+		}
+
+
+		public void OnPointerUp(PointerEventData data)
+		{
+			transform.position = m_StartPos;
+			UpdateVirtualAxes(m_StartPos);
+		}
+
+
+		public void OnPointerDown(PointerEventData data) { }
+
+		void OnDisable()
+		{
+			// remove the joysticks from the cross platform input
+			if (m_UseX)
+			{
+				m_HorizontalVirtualAxis.Remove();
+			}
+			if (m_UseY)
+			{
+				m_VerticalVirtualAxis.Remove();
+			}
+		}			
+
+		#endregion
+
+		#else
+
+		public void OnDrag(PointerEventData data) {}
+		public void OnPointerUp(PointerEventData data) {}
+		public void OnPointerDown(PointerEventData data) {}
+
+		#endif
+	}		
+}

Scripts/Controls/FloatingJoystick/FloatingJoystick.cs.meta

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Scripts/Controls/FloatingJoystick/FloatingJoystickArea.cs

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+/// Credit Tima Zhum
+
+using UnityEngine.EventSystems;
+
+namespace UnityEngine.UI.Extensions
+{
+	[RequireComponent(typeof(Image))]
+	[AddComponentMenu("Scripts/UnityEngine.UI.Extensions/FloatingJoystickArea")]
+	public class FloatingJoystickArea: MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IDragHandler
+	{		
+		/// <summary>
+		/// The floating joystick controller
+		/// </summary>
+		[Tooltip("The floating joystick that should appear in the area on tap")]
+		[SerializeField] private FloatingJoystick _floatingJoystick = null;
+
+		#if CROSS_PLATFORM_INPUT
+
+		/// <summary>
+		/// Raises the pointer down event
+		/// </summary>
+		/// <param name="_ped">Ped</param>
+		public void OnPointerDown(PointerEventData _ped) 
+		{
+			if (_floatingJoystick) _floatingJoystick.OnPointerDownHelper(_ped);
+		}
+
+		/// <summary>
+		/// Raises the pointer up event
+		/// </summary>
+		/// <param name="_ped">Ped</param>
+		public void OnPointerUp(PointerEventData _ped) 
+		{
+			if (_floatingJoystick) _floatingJoystick.OnPointerUpHelper(_ped);
+		}
+
+		/// <summary>
+		/// Raises the drag event
+		/// </summary>
+		/// <param name="_ped">Ped</param>
+		public void OnDrag(PointerEventData _ped)
+		{
+			if (_floatingJoystick) _floatingJoystick.OnDragHelper(_ped);
+		}
+
+		#else
+
+		public void OnDrag(PointerEventData data) {}
+		public void OnPointerUp(PointerEventData data) {}
+		public void OnPointerDown(PointerEventData data) {}
+
+		#endif
+	}
+}

Scripts/Controls/FloatingJoystick/FloatingJoystickArea.cs.meta

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