127 lines
3.9 KiB
C#
127 lines
3.9 KiB
C#
using UnityEngine;
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using UnityEngine.Events;
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using Lean.Common;
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using FSA = UnityEngine.Serialization.FormerlySerializedAsAttribute;
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namespace Lean.Touch
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{
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/// <summary>This component allows you to get the twist of all fingers.</summary>
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[HelpURL(LeanTouch.PlusHelpUrlPrefix + "LeanMultiTwist")]
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[AddComponentMenu(LeanTouch.ComponentPathPrefix + "Multi Twist")]
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public class LeanMultiTwist : MonoBehaviour
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{
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public enum OneFingerType
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{
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None,
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ScreenCenter,
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FingerStart
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}
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// Event signature
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[System.Serializable] public class FloatEvent : UnityEvent<float> {}
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/// <summary>The method used to find fingers to use with this component. See LeanFingerFilter documentation for more information.</summary>
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public LeanFingerFilter Use = new LeanFingerFilter(true);
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/// <summary>If there is no twisting, ignore the events?</summary>
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public bool IgnoreIfStatic { set { ignoreIfStatic = value; } get { return ignoreIfStatic; } } [FSA("IgnoreIfStatic")] [SerializeField] private bool ignoreIfStatic;
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/// <summary>Should this component allow one finger twisting?
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/// ScreenCenter = The twist pivot point will be the center of the screen.
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/// FingerStart = The twist pivot point will be the finger start position.</summary>
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public OneFingerType OneFinger { set { oneFinger = value; } get { return oneFinger; } } [FSA("OneFinger")] [SerializeField] private OneFingerType oneFinger;
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public FloatEvent OnTwistDegrees { get { if (onTwistDegrees == null) onTwistDegrees = new FloatEvent(); return onTwistDegrees; } } [UnityEngine.Serialization.FormerlySerializedAs("onTwist")] [SerializeField] private FloatEvent onTwistDegrees;
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/// <summary>If you've set Use to ManuallyAddedFingers, then you can call this method to manually add a finger.</summary>
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public void AddFinger(LeanFinger finger)
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{
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Use.AddFinger(finger);
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}
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/// <summary>If you've set Use to ManuallyAddedFingers, then you can call this method to manually remove a finger.</summary>
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public void RemoveFinger(LeanFinger finger)
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{
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Use.RemoveFinger(finger);
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}
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/// <summary>If you've set Use to ManuallyAddedFingers, then you can call this method to manually remove all fingers.</summary>
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public void RemoveAllFingers()
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{
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Use.RemoveAllFingers();
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}
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#if UNITY_EDITOR
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protected virtual void Reset()
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{
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Use.UpdateRequiredSelectable(gameObject);
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}
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#endif
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protected virtual void Awake()
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{
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Use.UpdateRequiredSelectable(gameObject);
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}
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protected virtual void Update()
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{
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// Get fingers
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var fingers = Use.UpdateAndGetFingers();
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if (fingers.Count > 0)
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{
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// Get twist
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var degrees = 0.0f;
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if (fingers.Count > 1)
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{
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degrees = LeanGesture.GetTwistDegrees(fingers);
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}
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else if (oneFinger != OneFingerType.None)
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{
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var firstFinger = fingers[0];
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var referencePoint = oneFinger == OneFingerType.FingerStart ? firstFinger.StartScreenPosition : new Vector2(Screen.width * 0.5f, Screen.height * 0.5f);
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degrees += firstFinger.GetDeltaDegrees(referencePoint, referencePoint);
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}
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// Ignore?
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if (ignoreIfStatic == true && degrees == 0.0f)
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{
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return;
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}
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// Call events
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if (onTwistDegrees != null)
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{
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onTwistDegrees.Invoke(degrees);
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}
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}
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}
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}
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}
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#if UNITY_EDITOR
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namespace Lean.Touch.Editor
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{
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using TARGET = LeanMultiTwist;
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[UnityEditor.CanEditMultipleObjects]
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[UnityEditor.CustomEditor(typeof(TARGET))]
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public class LeanDestroy_Editor : LeanEditor
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{
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protected override void OnInspector()
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{
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TARGET tgt; TARGET[] tgts; GetTargets(out tgt, out tgts);
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Draw("Use");
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Draw("ignoreIfStatic", "If there is no twisting, ignore the events?");
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Draw("oneFinger", "Should this component allow one finger twisting?\n\nScreenCenter = The twist pivot point will be the center of the screen.\n\nFingerStart = The twist pivot point will be the finger start position.");
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Separator();
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Draw("onTwistDegrees");
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}
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}
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}
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#endif |