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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class PanelItemBar : PanelBase
{
public ItemWidget m_ItemTempalte;
public UISimpleGrid m_ItemGrid;
public Text m_TextName;
private List<ItemWidget> m_Items = new List<ItemWidget>();
private int m_CurrentIndex = 0;
public override void Set(object param)
{
for(int i = 0; i < PlayerManager.Instance.items.Count; ++i)
{
ItemWidget widget = MakeItemWidget(PlayerManager.Instance.items[i]);
m_Items.Add(widget);
}
SelectItemWidget(0);
}
bool SwitchToLeft()
{
return Input.GetButtonDown("LeftItem");
}
bool SwitchToRight()
{
return Input.GetButtonDown("RightItem");
}
bool UseItem()
{
return Input.GetButtonDown("Fire3");
}
ItemWidget MakeItemWidget(ItemBase item)
{
ItemWidget widget = Instantiate<ItemWidget>(m_ItemTempalte);
widget.transform.SetParent(m_ItemGrid.transform);
widget.gameObject.SetActive(true);
widget.GetComponent<RectTransform>().anchoredPosition = new Vector2(0, 0);
#if UNITY_EDITOR
widget.name = "item (" + item.name + ")";
#endif
ItemWidgetParam param = new ItemWidgetParam();
//param.onSelected = OnSelectItemWidget;
param.item = item;
widget.Set(param);
return widget;
}
protected override void Update()
{
if (SwitchToLeft())
{
int newIndex = Mathf.Clamp(m_CurrentIndex - 1, 0, m_Items.Count - 1);
SelectItemWidget(newIndex);
}
if (SwitchToRight())
{
int newIndex = Mathf.Clamp(m_CurrentIndex + 1, 0, m_Items.Count - 1);
SelectItemWidget(newIndex);
}
if (UseItem())
{
m_Items[m_CurrentIndex].OnUseCallback();
PlayerManager.Instance.UseItem(m_Items[m_CurrentIndex].item);
}
}
void SelectItemWidget(int index)
{
if(index < 0 || index > m_Items.Count - 1)
{
return ;
}
m_Items[m_CurrentIndex].OnDeselectCallback();
m_Items[index].OnSelectCallback();
m_TextName.text = m_Items[index].item.name;
m_CurrentIndex = index;
}
}
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