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CrowdControl/Assets/Feel/MMTools/Tools/MMControls/MMSwipeZone.cs

223 lines
6.8 KiB
C#

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using UnityEngine.Events;
using UnityEngine.EventSystems;
#if ENABLE_INPUT_SYSTEM && !ENABLE_LEGACY_INPUT_MANAGER
using UnityEngine.InputSystem;
#endif
namespace MoreMountains.Tools
{
/// <summary>
/// The possible directions a swipe can have
/// </summary>
public enum MMPossibleSwipeDirections { Up, Down, Left, Right }
[System.Serializable]
public class SwipeEvent : UnityEvent<MMSwipeEvent> {}
/// <summary>
/// An event usually triggered when a swipe happens. It contains the swipe "base" direction, and detailed information if needed (angle, length, origin and destination
/// </summary>
public struct MMSwipeEvent
{
public MMPossibleSwipeDirections SwipeDirection;
public float SwipeAngle;
public float SwipeLength;
public Vector2 SwipeOrigin;
public Vector2 SwipeDestination;
public float SwipeDuration;
/// <summary>
/// Initializes a new instance of the <see cref="MoreMountains.Tools.MMSwipeEvent"/> struct.
/// </summary>
/// <param name="direction">Direction.</param>
/// <param name="angle">Angle.</param>
/// <param name="length">Length.</param>
/// <param name="origin">Origin.</param>
/// <param name="destination">Destination.</param>
public MMSwipeEvent(MMPossibleSwipeDirections direction, float angle, float length, Vector2 origin, Vector2 destination, float swipeDuration)
{
SwipeDirection = direction;
SwipeAngle = angle;
SwipeLength = length;
SwipeOrigin = origin;
SwipeDestination = destination;
SwipeDuration = swipeDuration;
}
static MMSwipeEvent e;
public static void Trigger(MMPossibleSwipeDirections direction, float angle, float length, Vector2 origin, Vector2 destination, float swipeDuration)
{
e.SwipeDirection = direction;
e.SwipeAngle = angle;
e.SwipeLength = length;
e.SwipeOrigin = origin;
e.SwipeDestination = destination;
e.SwipeDuration = swipeDuration;
MMEventManager.TriggerEvent(e);
}
}
/// <summary>
/// Add a swipe manager to your scene, and it'll trigger MMSwipeEvents everytime a swipe happens. From its inspector you can determine the minimal length of a swipe. Shorter swipes will be ignored
/// </summary>
[RequireComponent(typeof(RectTransform))]
[AddComponentMenu("More Mountains/Tools/Controls/MMSwipeZone")]
public class MMSwipeZone : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler, IPointerEnterHandler
{
/// the minimal length of a swipe
[Tooltip("the minimal length of a swipe")]
public float MinimalSwipeLength = 50f;
/// the maximum press length of a swipe
[Tooltip("the maximum press length of a swipe")]
public float MaximumPressLength = 10f;
/// The method(s) to call when the zone is swiped
[Tooltip("The method(s) to call when the zone is swiped")]
public SwipeEvent ZoneSwiped;
/// The method(s) to call while the zone is being pressed
[Tooltip("The method(s) to call while the zone is being pressed")]
public UnityEvent ZonePressed;
[Header("Mouse Mode")]
[MMInformation("If you set this to true, you'll need to actually press the button for it to be triggered, otherwise a simple hover will trigger it (better for touch input).", MMInformationAttribute.InformationType.Info,false)]
/// If you set this to true, you'll need to actually press the button for it to be triggered, otherwise a simple hover will trigger it (better for touch input).
[Tooltip("If you set this to true, you'll need to actually press the button for it to be triggered, otherwise a simple hover will trigger it (better for touch input).")]
public bool MouseMode = false;
protected Vector2 _firstTouchPosition;
protected float _angle;
protected float _length;
protected Vector2 _destination;
protected Vector2 _deltaSwipe;
protected MMPossibleSwipeDirections _swipeDirection;
protected float _lastPointerUpAt = 0f;
protected float _swipeStartedAt = 0f;
protected float _swipeEndedAt = 0f;
/// <summary>
/// Invokes a swipe event with the correct properties
/// </summary>
protected virtual void Swipe()
{
float duration = _swipeEndedAt - _swipeStartedAt;
MMSwipeEvent swipeEvent = new MMSwipeEvent (_swipeDirection, _angle, _length, _firstTouchPosition, _destination, duration);
MMEventManager.TriggerEvent(swipeEvent);
if (ZoneSwiped != null)
{
ZoneSwiped.Invoke (swipeEvent);
}
}
/// <summary>
/// Raises the press event
/// </summary>
protected virtual void Press()
{
if (ZonePressed != null)
{
ZonePressed.Invoke ();
}
}
/// <summary>
/// Triggers the bound pointer down action
/// </summary>
public virtual void OnPointerDown(PointerEventData data)
{
#if ENABLE_INPUT_SYSTEM && !ENABLE_LEGACY_INPUT_MANAGER
_firstTouchPosition = Mouse.current.position.ReadValue();
#else
_firstTouchPosition = Input.mousePosition;
#endif
_swipeStartedAt = Time.unscaledTime;
}
/// <summary>
/// Triggers the bound pointer up action
/// </summary>
public virtual void OnPointerUp(PointerEventData data)
{
if (Time.frameCount == _lastPointerUpAt)
{
return;
}
#if ENABLE_INPUT_SYSTEM && !ENABLE_LEGACY_INPUT_MANAGER
_destination = Mouse.current.position.ReadValue();
#else
_destination = Input.mousePosition;
#endif
_deltaSwipe = _destination - _firstTouchPosition;
_length = _deltaSwipe.magnitude;
// if the swipe has been long enough
if (_length > MinimalSwipeLength)
{
_angle = MMMaths.AngleBetween (_deltaSwipe, Vector2.right);
_swipeDirection = AngleToSwipeDirection (_angle);
_swipeEndedAt = Time.unscaledTime;
Swipe ();
}
// if it's just a press
if (_deltaSwipe.magnitude < MaximumPressLength)
{
Press ();
}
_lastPointerUpAt = Time.frameCount;
}
/// <summary>
/// Triggers the bound pointer enter action when touch enters zone
/// </summary>
public virtual void OnPointerEnter(PointerEventData data)
{
if (!MouseMode)
{
OnPointerDown (data);
}
}
/// <summary>
/// Triggers the bound pointer exit action when touch is out of zone
/// </summary>
public virtual void OnPointerExit(PointerEventData data)
{
if (!MouseMode)
{
OnPointerUp(data);
}
}
/// <summary>
/// Determines a MMPossibleSwipeDirection out of an angle in degrees.
/// </summary>
/// <returns>The to swipe direction.</returns>
/// <param name="angle">Angle in degrees.</param>
protected virtual MMPossibleSwipeDirections AngleToSwipeDirection(float angle)
{
if ((angle < 45) || (angle >= 315))
{
return MMPossibleSwipeDirections.Right;
}
if ((angle >= 45) && (angle < 135))
{
return MMPossibleSwipeDirections.Up;
}
if ((angle >= 135) && (angle < 225))
{
return MMPossibleSwipeDirections.Left;
}
if ((angle >= 225) && (angle < 315))
{
return MMPossibleSwipeDirections.Down;
}
return MMPossibleSwipeDirections.Right;
}
}
}