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Packages/com.unity.inputsystem/InputSystem/Controls/Processors/StickDeadzoneProcessor.cs

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+using System;
+
+#if UNITY_EDITOR
+using UnityEngine.InputSystem.Editor;
+using UnityEngine.UIElements;
+#endif
+
+////REVIEW: rename to RadialDeadzone
+
+////TODO: add different deadzone shapes and/or option to min/max X and Y separately
+
+namespace UnityEngine.InputSystem.Processors
+{
+    /// <summary>
+    /// Processes a Vector2 to apply deadzoning according to the magnitude of the vector (rather
+    /// than just clamping individual axes). Normalizes to the min/max range.
+    /// </summary>
+    /// <seealso cref="AxisDeadzoneProcessor"/>
+    public class StickDeadzoneProcessor : InputProcessor<Vector2>
+    {
+        /// <summary>
+        /// Value at which the lower bound deadzone starts.
+        /// </summary>
+        /// <remarks>
+        /// Values in the input at or below min will get dropped and values
+        /// will be scaled to the range between min and max.
+        /// </remarks>
+        public float min;
+        public float max;
+
+        private float minOrDefault => min == default ? InputSystem.settings.defaultDeadzoneMin : min;
+        private float maxOrDefault => max == default ? InputSystem.settings.defaultDeadzoneMax : max;
+
+        public override Vector2 Process(Vector2 value, InputControl control = null)
+        {
+            var magnitude = value.magnitude;
+            var newMagnitude = GetDeadZoneAdjustedValue(magnitude);
+            if (newMagnitude == 0)
+                value = Vector2.zero;
+            else
+                value *= newMagnitude / magnitude;
+            return value;
+        }
+
+        private float GetDeadZoneAdjustedValue(float value)
+        {
+            var min = minOrDefault;
+            var max = maxOrDefault;
+
+            var absValue = Mathf.Abs(value);
+            if (absValue < min)
+                return 0;
+            if (absValue > max)
+                return Mathf.Sign(value);
+
+            return Mathf.Sign(value) * ((absValue - min) / (max - min));
+        }
+
+        public override string ToString()
+        {
+            return $"StickDeadzone(min={minOrDefault},max={maxOrDefault})";
+        }
+    }
+
+    #if UNITY_EDITOR
+    internal class StickDeadzoneProcessorEditor : InputParameterEditor<StickDeadzoneProcessor>
+    {
+        protected override void OnEnable()
+        {
+            m_MinSetting.Initialize("Min",
+                "Vector length  below which input values will be clamped. After clamping, vector lengths will be renormalized to [0..1] between min and max.",
+                "Default Deadzone Min",
+                () => target.min, v => target.min = v,
+                () => InputSystem.settings.defaultDeadzoneMin);
+            m_MaxSetting.Initialize("Max",
+                "Vector length above which input values will be clamped. After clamping, vector lengths will be renormalized to [0..1] between min and max.",
+                "Default Deadzone Max",
+                () => target.max, v => target.max = v,
+                () => InputSystem.settings.defaultDeadzoneMax);
+        }
+
+        public override void OnGUI()
+        {
+        }
+
+        public override void OnDrawVisualElements(VisualElement root, Action onChangedCallback)
+        {
+            m_MinSetting.OnDrawVisualElements(root, onChangedCallback);
+            m_MaxSetting.OnDrawVisualElements(root, onChangedCallback);
+        }
+
+        private CustomOrDefaultSetting m_MinSetting;
+        private CustomOrDefaultSetting m_MaxSetting;
+    }
+    #endif
+}