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118 lines
3.1 KiB
118 lines
3.1 KiB
using System;
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using UnityEngine;
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using UnityEngine.EventSystems;
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namespace UnityStandardAssets.CrossPlatformInput
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{
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public class Joystick : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IDragHandler
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{
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public enum AxisOption
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{
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// Options for which axes to use
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Both, // Use both
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OnlyHorizontal, // Only horizontal
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OnlyVertical // Only vertical
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}
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public int MovementRange = 100;
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public AxisOption axesToUse = AxisOption.Both; // The options for the axes that the still will use
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public string horizontalAxisName = "Horizontal"; // The name given to the horizontal axis for the cross platform input
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public string verticalAxisName = "Vertical"; // The name given to the vertical axis for the cross platform input
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Vector3 m_StartPos;
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bool m_UseX; // Toggle for using the x axis
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bool m_UseY; // Toggle for using the Y axis
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CrossPlatformInputManager.VirtualAxis m_HorizontalVirtualAxis; // Reference to the joystick in the cross platform input
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CrossPlatformInputManager.VirtualAxis m_VerticalVirtualAxis; // Reference to the joystick in the cross platform input
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void OnEnable()
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{
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CreateVirtualAxes();
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}
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void Start()
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{
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m_StartPos = transform.position;
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}
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void UpdateVirtualAxes(Vector3 value)
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{
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var delta = m_StartPos - value;
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delta.y = -delta.y;
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delta /= MovementRange;
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if (m_UseX)
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{
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m_HorizontalVirtualAxis.Update(-delta.x);
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}
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if (m_UseY)
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{
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m_VerticalVirtualAxis.Update(delta.y);
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}
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}
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void CreateVirtualAxes()
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{
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// set axes to use
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m_UseX = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyHorizontal);
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m_UseY = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyVertical);
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// create new axes based on axes to use
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if (m_UseX)
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{
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m_HorizontalVirtualAxis = new CrossPlatformInputManager.VirtualAxis(horizontalAxisName);
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CrossPlatformInputManager.RegisterVirtualAxis(m_HorizontalVirtualAxis);
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}
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if (m_UseY)
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{
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m_VerticalVirtualAxis = new CrossPlatformInputManager.VirtualAxis(verticalAxisName);
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CrossPlatformInputManager.RegisterVirtualAxis(m_VerticalVirtualAxis);
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}
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}
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public void OnDrag(PointerEventData data)
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{
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Vector3 newPos = Vector3.zero;
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if (m_UseX)
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{
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int delta = (int)(data.position.x - m_StartPos.x);
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delta = Mathf.Clamp(delta, - MovementRange, MovementRange);
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newPos.x = delta;
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}
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if (m_UseY)
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{
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int delta = (int)(data.position.y - m_StartPos.y);
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delta = Mathf.Clamp(delta, -MovementRange, MovementRange);
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newPos.y = delta;
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}
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transform.position = new Vector3(m_StartPos.x + newPos.x, m_StartPos.y + newPos.y, m_StartPos.z + newPos.z);
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UpdateVirtualAxes(transform.position);
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}
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public void OnPointerUp(PointerEventData data)
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{
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transform.position = m_StartPos;
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UpdateVirtualAxes(m_StartPos);
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}
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public void OnPointerDown(PointerEventData data) { }
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void OnDisable()
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{
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// remove the joysticks from the cross platform input
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if (m_UseX)
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{
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m_HorizontalVirtualAxis.Remove();
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}
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if (m_UseY)
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{
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m_VerticalVirtualAxis.Remove();
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}
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}
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}
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}
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