53 lines
1.6 KiB
C#
53 lines
1.6 KiB
C#
using GatherAndDefend.Events;
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using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.UI;
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[RequireComponent(typeof(Button))]
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public abstract class PlacementButton : MonoBehaviour, IPointerDownHandler
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{
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private bool _canUse = false;
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private Button _button;
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private DraggablePlaceholder _placeholder;
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[SerializeField]
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private Material _outlineMaterial;
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public bool CanUse => _canUse;
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public Button Button => _button;
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public DraggablePlaceholder Placeholder => _placeholder;
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public Material OutlineMaterial => _outlineMaterial;
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protected virtual void Start()
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{
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_button = GetComponent<Button>();
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_button.enabled = false;
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EventAggregator.Instance.GetEvent<LevelLoadedEvent>().Attach(OnLevelLoaded);
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EventAggregator.Instance.GetEvent<ExitingLevelEvent>().Attach(DeactivateButton);
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}
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protected virtual void Update()
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{
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_button.interactable = CanPlace();
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}
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private void OnLevelLoaded(GatherAndDefend.LevelEditor.Level level)
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{
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_canUse = true;
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EventAggregator.Instance.GetEvent<LevelLoadedEvent>().Detach(OnLevelLoaded);
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}
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void DeactivateButton()
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{
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EventAggregator.Instance.GetEvent<ExitingLevelEvent>().Detach(DeactivateButton);
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_canUse = false;
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}
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public virtual void OnPointerDown(PointerEventData eventData)
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{
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if (!_button.interactable) return;
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_placeholder = Place();
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}
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protected abstract DraggablePlaceholder Place();
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protected virtual bool CanPlace()
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{
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return Button.enabled && CanUse;
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}
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} |