using System;
using System.Collections.Generic;
using Godot;
/// <summary>
/// 角色身上的武器袋, 存储角色携带的武器
/// </summary>
public class Holster
{
/// <summary>
/// 插槽类
/// </summary>
public class WeaponSlot
{
/// <summary>
/// 是否启用
/// </summary>
public bool Enable = false;
/// <summary>
/// 当前插槽存放的武器类型
/// </summary>
public WeaponWeightType Type = WeaponWeightType.MainWeapon;
/// <summary>
/// 插槽存放的武器
/// </summary>
public Weapon Weapon;
}
/// <summary>
/// 归属者
/// </summary>
public Role Master { get; }
//public Weapon HandheldWeapon { get; private set; }
/// <summary>
/// 当前使用的武器对象
/// </summary>
public Weapon ActiveWeapon { get; private set; }
/// <summary>
/// 当前使用的武器的索引
/// </summary>
public int ActiveIndex { get; private set; } = 0;
/// <summary>
/// 武器插槽
/// </summary>
public WeaponSlot[] SlotList { get; } = new WeaponSlot[4];
public Holster(Role master)
{
Master = master;
//创建武器的插槽, 默认前两个都是启用的
WeaponSlot slot1 = new WeaponSlot();
slot1.Enable = true;
SlotList[0] = slot1;
WeaponSlot slot2 = new WeaponSlot();
slot2.Enable = true;
slot2.Type = WeaponWeightType.DeputyWeapon;
SlotList[1] = slot2;
WeaponSlot slot3 = new WeaponSlot();
SlotList[2] = slot3;
WeaponSlot slot4 = new WeaponSlot();
slot4.Type = WeaponWeightType.DeputyWeapon;
SlotList[3] = slot4;
}
/// <summary>
/// 返回当前武器袋是否还有空位
/// </summary>
public bool HasVacancy()
{
for (int i = 0; i < SlotList.Length; i++)
{
var item = SlotList[i];
if (item.Enable && item.Weapon == null)
{
return true;
}
}
return false;
}
/// <summary>
/// 根据索引获取武器
/// </summary>
public Weapon GetWeapon(int index)
{
if (index < 0 || index >= SlotList.Length)
{
return null;
}
return SlotList[index].Weapon;
}
/// <summary>
/// 根据武器id查找武器袋中该武器所在的位置, 如果没有, 则返回 -1
/// </summary>
/// <param name="id">武器id</param>
public int FindWeapon(string id)
{
for (int i = 0; i < SlotList.Length; i++)
{
var item = SlotList[i];
if (item.Weapon != null && item.Weapon.TypeId == id)
{
return i;
}
}
return -1;
}
/// <summary>
/// 通过回调函数查询武器在武器袋中的位置, 如果没有, 则返回 -1
/// </summary>
public int FindWeapon(Func<Weapon, int, bool> handler)
{
for (int i = 0; i < SlotList.Length; i++)
{
var item = SlotList[i];
if (item.Weapon != null && handler(item.Weapon, i))
{
return i;
}
}
return -1;
}
/// <summary>
/// 遍历所有武器
/// </summary>
public void ForEach(Action<Weapon, int> handler)
{
for (int i = 0; i < SlotList.Length; i++)
{
var item = SlotList[i];
if (item.Weapon != null)
{
handler(item.Weapon, i);
}
}
}
/// <summary>
/// 从武器袋中移除所有武器, 并返回
/// </summary>
public Weapon[] GetAndClearWeapon()
{
List<Weapon> weapons = new List<Weapon>();
for (int i = 0; i < SlotList.Length; i++)
{
var slot = SlotList[i];
var weapon = slot.Weapon;
if (weapon != null)
{
weapon.GetParent().RemoveChild(weapon);
weapon.RemoveAt();
weapons.Add(weapon);
slot.Weapon = null;
}
}
return weapons.ToArray();
}
/// <summary>
/// 返回是否能放入武器
/// </summary>
/// <param name="weapon">武器对象</param>
public bool CanPickupWeapon(Weapon weapon)
{
for (int i = 0; i < SlotList.Length; i++)
{
var item = SlotList[i];
if (item.Enable && weapon.Attribute.WeightType == item.Type && item.Weapon == null)
{
return true;
}
}
return false;
}
/// <summary>
/// 拾起武器, 存入武器袋中, 返回存放在武器袋的位置, 如果容不下这把武器, 则会返回 -1
/// </summary>
/// <param name="weapon">武器对象</param>
/// <param name="exchange">是否立即切换到该武器, 默认 true </param>
public int PickupWeapon(Weapon weapon, bool exchange = true)
{
//已经被拾起了
if (weapon.Master != null)
{
return -1;
}
for (int i = 0; i < SlotList.Length; i++)
{
var item = SlotList[i];
if (item.Enable && weapon.Attribute.WeightType == item.Type && item.Weapon == null)
{
weapon.Pickup();
item.Weapon = weapon;
weapon.PickUpWeapon(Master);
if (exchange)
{
ExchangeByIndex(i);
}
return i;
}
}
return -1;
}
/// <summary>
/// 移除指定位置的武器, 并返回这个武器对象, 如果移除正在使用的这把武器, 则会自动切换到上一把武器
/// </summary>
/// <param name="index">所在武器袋的位置索引</param>
public Weapon RemoveWeapon(int index)
{
if (index < 0 || index >= SlotList.Length)
{
return null;
}
var slot = SlotList[index];
if (slot.Weapon == null)
{
return null;
}
var weapon = slot.Weapon;
weapon.GetParent().RemoveChild(weapon);
slot.Weapon = null;
//如果是当前手持的武器, 就需要调用切换武器操作
if (index == ActiveIndex)
{
//没有其他武器了
if (ExchangePrev() == index)
{
ActiveIndex = 0;
ActiveWeapon = null;
}
}
weapon.RemoveAt();
return weapon;
}
/// <summary>
/// 切换到上一个武器
/// </summary>
public int ExchangePrev()
{
var index = ActiveIndex - 1;
do
{
if (index < 0)
{
index = SlotList.Length - 1;
}
if (ExchangeByIndex(index))
{
return index;
}
} while (index-- != ActiveIndex);
return -1;
}
/// <summary>
/// 切换到下一个武器,
/// </summary>
public int ExchangeNext()
{
var index = ActiveIndex + 1;
do
{
if (index >= SlotList.Length)
{
index = 0;
}
if (ExchangeByIndex(index))
{
return index;
}
}
while (index++ != ActiveIndex);
return -1;
}
/// <summary>
/// 切换到指定索引的武器
/// </summary>
public bool ExchangeByIndex(int index)
{
if (index == ActiveIndex && ActiveWeapon != null) return true;
if (index < 0 || index > SlotList.Length) return false;
var slot = SlotList[index];
if (slot == null || slot.Weapon == null) return false;
//将上一把武器放到背后
if (ActiveWeapon != null)
{
var tempParent = ActiveWeapon.GetParentOrNull<Node2D>();
if (tempParent != null)
{
tempParent.RemoveChild(ActiveWeapon);
Master.BackMountPoint.AddChild(ActiveWeapon);
if (ActiveIndex == 0)
{
ActiveWeapon.Position = new Vector2(0, 5);
ActiveWeapon.RotationDegrees = 50;
ActiveWeapon.Scale = new Vector2(-1, 1);
}
else if (ActiveIndex == 1)
{
ActiveWeapon.Position = new Vector2(0, 0);
ActiveWeapon.RotationDegrees = 120;
ActiveWeapon.Scale = new Vector2(1, -1);
}
else if (ActiveIndex == 2)
{
ActiveWeapon.Position = new Vector2(0, 5);
ActiveWeapon.RotationDegrees = 310;
ActiveWeapon.Scale = new Vector2(1, 1);
}
else if (ActiveIndex == 3)
{
ActiveWeapon.Position = new Vector2(0, 0);
ActiveWeapon.RotationDegrees = 60;
ActiveWeapon.Scale = new Vector2(1, 1);
}
ActiveWeapon.Conceal();
}
}
//更改父节点
var parent = slot.Weapon.GetParentOrNull<Node>();
if (parent == null)
{
Master.MountPoint.AddChild(slot.Weapon);
}
else if (parent != Master.MountPoint)
{
parent.RemoveChild(slot.Weapon);
Master.MountPoint.AddChild(slot.Weapon);
}
slot.Weapon.Position = Vector2.Zero;
slot.Weapon.Scale = Vector2.One;
slot.Weapon.RotationDegrees = 0;
ActiveWeapon = slot.Weapon;
ActiveIndex = index;
ActiveWeapon.Active();
return true;
}
}
