Added interaction, hand, rigidbody dragging, picking up hammer

Assets/Plugins/Interaction/Runtime/UI/InteractionUI.cs

@@ -0,0 +1,176 @@
+#define CENTER_TEXT
+
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+#if CENTER_TEXT
+using TMPro;
+#endif
+
+using Nothke.Interaction.Items;
+
+namespace Nothke.Interaction.UI
+{
+    public interface ICustomReticle
+    {
+        ReticleUI.State GetCustomReticle();
+    }
+
+    public interface IReticleUIOverridable
+    {
+        bool OverrideUI { get; }
+        bool ReleaseInteractionBlocking { get; }
+    }
+
+    public class InteractionUI : MonoBehaviour
+    {
+        public static InteractionUI e;
+        private void Awake()
+        {
+            e = this;
+
+            controller = GetComponent<InteractionController>();
+            if (!controller) controller = FindObjectOfType<InteractionController>();
+            if (!controller)
+            {
+                Debug.LogError("No controller found");
+                enabled = false;
+            }
+        }
+
+#if CENTER_TEXT
+        public TMP_Text centerText;
+#endif
+
+        InteractionController controller;
+
+        bool mouseRay;
+
+        RigidbodyInteractable riHovered;
+        RigidbodyInteractable ri;
+
+        IReticleUIOverridable overridable;
+
+        bool ovrr;
+
+        private void OnEnable()
+        {
+            controller.OnHover += OnHover;
+            controller.OnDehover += OnDehover;
+            controller.OnRayModeChange += OnRayModeChange;
+        }
+
+        private void OnDisable()
+        {
+            controller.OnHover -= OnHover;
+            controller.OnDehover -= OnDehover;
+            controller.OnRayModeChange += OnRayModeChange;
+        }
+
+#if CENTER_TEXT
+        public void SetText(string description)
+        {
+            centerText.enabled = true;
+            centerText.text = description;
+        }
+
+        public void HideText()
+        {
+            centerText.enabled = false;
+        }
+#endif
+
+        protected virtual void OnHover(Interactable interactable)
+        {
+            if (ovrr) return;
+
+#if CENTER_TEXT
+            if (centerText)
+            {
+                SetText(interactable.Label);
+            }
+#endif
+
+            // Interactable icon choice
+
+            if (interactable is ICustomReticle)
+            {
+                ReticleUI.state = (interactable as ICustomReticle).GetCustomReticle();
+            }
+            else if (interactable is ITakeable)
+            {
+                ReticleUI.state = ReticleUI.State.Take;
+            }
+            else if (interactable is RigidbodyInteractable)
+            {
+                ReticleUI.state = ReticleUI.State.Grab;
+
+                riHovered = interactable as RigidbodyInteractable;
+            }
+            else
+            {
+                ReticleUI.state = ReticleUI.State.Idle;
+            }
+
+            if (interactable is IReticleUIOverridable)
+            {
+                overridable = interactable as IReticleUIOverridable;
+            }
+        }
+
+        private void Update()
+        {
+            if (overridable != null)
+            {
+                ovrr = overridable.OverrideUI;
+                if (ovrr == false)
+                {
+                    OnDehover();
+                    overridable = null;
+                }
+            }
+
+            if (riHovered && riHovered.held && ri == null)
+            {
+                ri = riHovered;
+                ovrr = true;
+                ReticleUI.state = ReticleUI.State.Hold;
+            }
+
+            if (ri && !ri.held)
+            {
+                ovrr = false;
+                OnDehover();
+
+                if (controller.hovered)
+                    OnHover(controller.hovered);
+
+                ri = null;
+            }
+
+            if (controller.mouseRay)
+            {
+                ReticleUI.SetReticlePosition(Input.mousePosition);
+            }
+        }
+
+        protected virtual void OnDehover()
+        {
+            if (ovrr) return;
+
+#if CENTER_TEXT
+            if (centerText)
+                centerText.enabled = false;
+#endif
+
+            ReticleUI.state = ReticleUI.State.None;
+        }
+
+        protected virtual void OnRayModeChange(bool enable)
+        {
+            if (!enable)
+                ReticleUI.ResetReticlePosition();
+        }
+    }
+}

Assets/Plugins/Interaction/Runtime/UI/InteractionUI.cs.meta

@@ -0,0 +1,11 @@
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+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
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Assets/Plugins/Interaction/Runtime/UI/ReticleUI.cs

@@ -0,0 +1,95 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+using UnityEngine.UI;
+
+namespace Nothke.Interaction.UI
+{
+    public class ReticleUI : MonoBehaviour
+    {
+        static ReticleUI e;
+        private void Awake() { e = this; }
+
+        public bool showIconForNone;
+
+        public Texture icon_none;
+        public Texture icon_generic;
+        public Texture icon_grab;
+        public Texture icon_hold;
+        public Texture icon_take;
+        public Texture icon_slot;
+
+        public Texture icon_ride;
+        public Texture icon_scroll;
+        public Texture icon_grab_knob;
+        public Texture icon_hold_knob;
+
+        public RawImage image;
+
+        public enum State { None, Idle, Grab, Hold, Take, Slot, Ride, Scroll, GrabKnob, HoldKnob }
+        public static State state;
+        static State lastState;
+
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
+        private void Init()
+        {
+            state = State.None;
+            lastState = State.None;
+        }
+
+        public static void Hide()
+        {
+            state = State.None;
+            e.SetState();
+        }
+
+        public static void ResetReticlePosition()
+        {
+            if (!e) return;
+            RectTransform t = e.image.GetComponent<RectTransform>();
+            t.anchoredPosition = Vector2.zero;
+        }
+
+        public static void SetReticlePosition(Vector2 screenPos)
+        {
+            if (!e) return;
+            RectTransform t = e.image.GetComponent<RectTransform>();
+            t.position = screenPos;
+        }
+
+        private void Start()
+        {
+            SetState();
+        }
+
+        void Update()
+        {
+            if (state != lastState)
+                SetState();
+
+            lastState = state;
+        }
+
+        void SetState()
+        {
+            if (!showIconForNone)
+                image.enabled = state != State.None;
+
+            switch (state)
+            {
+                case State.None: image.texture = icon_none; break;
+                case State.Idle: image.texture = icon_generic; break;
+                case State.Grab: image.texture = icon_grab; break;
+                case State.Hold: image.texture = icon_hold; break;
+                case State.Take: image.texture = icon_take; break;
+                case State.Slot: image.texture = icon_slot; break;
+
+                case State.Ride: image.texture = icon_ride; break;
+                case State.Scroll: image.texture = icon_scroll; break;
+                case State.GrabKnob: image.texture = icon_grab_knob; break;
+                case State.HoldKnob: image.texture = icon_hold_knob; break;
+            }
+        }
+    }
+}

Assets/Plugins/Interaction/Runtime/UI/ReticleUI.cs.meta

@@ -0,0 +1,11 @@
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