init

2026-07-09 21:33:33 +02:00
commit 84a2a365f3
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+using System;
+using Sirenix.OdinInspector;
+using UnityEngine.UIElements;
+using VOID.Generic.Dict;
+using VOID.Generic.Objects.Abstract.Events;
+using VOID.Generic.Objects.Unit;
+
+namespace VOID.UserInterface.Game.Party
+{
+    /// <summary>
+    /// Manages all visuals inside <see cref="UnitObject"/> portrait, including: image, border and healthbar
+    /// </summary>
+    public class UnitPortraitUI
+    {
+        [ShowInInspector, ReadOnly] public UnitObject unit { get; private set; }
+
+        public event Action<UnitObject> OnClick;
+
+        // Visual Elements
+        public VisualElement templateElement { get; private set; }
+        private Button _portrait;
+        private ProgressBar _healthBar;
+        private Label _healthLabel;
+
+        /// <summary>
+        /// Initializes <see cref="UnitPortraitUI"/> on existing potrait visual element.
+        /// </summary>
+        /// <param name="unitPortraitTemplate">Existing template to use for this portrait</param>
+        public void Init(VisualElement unitPortraitTemplate)
+        {
+            // Find all important elements
+            templateElement = unitPortraitTemplate;
+            _portrait = templateElement.Q<Button>("portrait");
+            _healthBar = templateElement.Q<ProgressBar>("health-bar");
+            _healthLabel = templateElement.Q<Label>("health-label");
+            
+            templateElement.RegisterCallback(new EventCallback<MouseDownEvent>(_ => OnClick?.Invoke(unit)), TrickleDown.TrickleDown);
+
+            // Binding component to element
+            templateElement.dataSource = this;
+            templateElement.pickingMode = PickingMode.Position;
+        }
+
+        /// <summary>
+        /// Initializes completly new <see cref="UnitPortraitUI"/> inside given parent.
+        /// </summary>
+        /// <param name="parentElement">Create new potratit as child in given parent.</param>
+        public void InitNew(VisualElement parentElement)
+        {
+            // Find all important elements
+            var newTemplateElement = GameUI.current.unitPortraitTemplate.CloneTree().contentContainer;
+            newTemplateElement.AddToClassList("unit-portrait");
+            newTemplateElement.AddToClassList("unit-portrait-small");
+            parentElement.Add(newTemplateElement);
+            Init(newTemplateElement);
+        }
+
+        /// <summary>
+        /// Display given <see cref="UnitObject"/> in this portrait.
+        /// </summary>
+        public void SetUnit(UnitObject unitToSet)
+        {
+            // Remove everything about previous Unit
+            UnsetUnit(); 
+
+            // New Unit assigned - start listeners and wait
+            unit = unitToSet;
+            unit.basicEvents.onCurrentResourceChange.AddListener(OnBasicResourceChange);
+            
+            // Set Unit's portrait
+            _portrait.style.backgroundImage = new StyleBackground(unit.basicData.image);
+
+            UnitPortraitHealthChange();
+        }
+
+        /// <summary>
+        /// Clear currently displaying <see cref="UnitObject"/> in this portrait.
+        /// </summary>
+        public void UnsetUnit()
+        {
+            // There is no unit currently
+            if (!unit) return;
+
+            // Remove all listeners, then remove assigned Unit
+            unit.basicEvents.onCurrentResourceChange.RemoveListener(OnBasicResourceChange);
+            unit = null;
+            
+            // Make UI invisible and unset portrait
+            _portrait.style.backgroundImage = null;
+        }
+
+        /// <summary>
+        /// Completly destroy this potratit.
+        /// </summary>
+        public void Destroy()
+        {
+            unit.basicEvents.onCurrentResourceChange.RemoveListener(OnBasicResourceChange);
+            templateElement.parent.Remove(templateElement);
+        }
+
+        private void OnBasicResourceChange(BasicResourceChangeEvent basicResourceChangeEvent)
+        {
+            // Update HealthBar length
+            if (basicResourceChangeEvent.type is BasicResourceType.Health)
+            {
+                UnitPortraitHealthChange();
+            }
+        }
+
+        private void UnitPortraitHealthChange()
+        {
+            // Update HealthBar length
+            _healthBar.value = unit.basicData.currentResources.Get(BasicResourceType.Health) / unit.basicData.maxResources.Get(BasicResourceType.Health) * 100;
+
+            // Update HealthBar label
+            _healthLabel.text = $"{unit.basicData.currentResources.Get(BasicResourceType.Health)}/{unit.basicData.maxResources.Get(BasicResourceType.Health)}";
+        }
+    }
+}