using System.Collections.Generic;
using Godot;
/// <summary>
/// 角色基类
/// </summary>
public abstract class Role : ActivityObject
{
/// <summary>
/// 重写的纹理
/// </summary>
public Texture OverrideTexture { get; protected set; }
/// <summary>
/// 移动速度
/// </summary>
public float MoveSpeed = 150f;
/// <summary>
/// 所属阵营
/// </summary>
public CampEnum Camp;
/// <summary>
/// 携带的道具包裹
/// </summary>
public List<object> PropsPack { get; } = new List<object>();
/// <summary>
/// 角色携带的枪套
/// </summary>
public Holster Holster { get; private set; }
/// <summary>
/// 武器挂载点
/// </summary>
public Position2D MountPoint { get; private set; }
/// <summary>
/// 背后武器的挂载点
/// </summary>
public Position2D BackMountPoint { get; private set; }
/// <summary>
/// 互动碰撞区域
/// </summary>
public Area2D InteractiveArea { get; private set; }
/// <summary>
/// 脸的朝向
/// </summary>
public FaceDirection Face { get => _face; set => SetFace(value); }
private FaceDirection _face;
/// <summary>
/// 血量
/// </summary>
public int Hp
{
get => _hp;
protected set
{
int temp = _hp;
_hp = value;
if (temp != _hp) OnChangeHp(_hp);
}
}
private int _hp = 0;
/// <summary>
/// 最大血量
/// </summary>
public int MaxHp
{
get => _maxHp;
protected set
{
int temp = _maxHp;
_maxHp = value;
if (temp != _maxHp) OnChangeMaxHp(_maxHp);
}
}
private int _maxHp = 0;
//初始缩放
private Vector2 StartScele;
//所有角色碰撞的道具
private readonly List<ActivityObject> InteractiveItemList = new List<ActivityObject>();
private CheckInteractiveResult TempResultData;
/// <summary>
/// 可以互动的道具
/// </summary>
protected ActivityObject InteractiveItem { get; private set; }
/// <summary>
/// 当血量改变时调用
/// </summary>
protected abstract void OnChangeHp(int hp);
/// <summary>
/// 当最大血量改变时调用
/// </summary>
protected abstract void OnChangeMaxHp(int maxHp);
/// <summary>
/// 当可互动的物体改变时调用, result 参数为 null 表示变为不可互动
/// </summary>
/// <param name="result">检测是否可互动时的返回值</param>
protected abstract void ChangeInteractiveItem(CheckInteractiveResult result);
public override CheckInteractiveResult CheckInteractive(ActivityObject master)
{
return new CheckInteractiveResult(this);
}
public override void Interactive(ActivityObject master)
{
}
public Role() : base("res://prefab/role/Role.tscn")
{
}
public Role(string scenePath) : base(scenePath)
{
}
public override void _Ready()
{
base._Ready();
StartScele = Scale;
MountPoint = GetNode<Position2D>("MountPoint");
BackMountPoint = GetNode<Position2D>("BackMountPoint");
if (OverrideTexture != null)
{
// 更改纹理
ChangeFrameTexture(AnimatorNames.Idle, AnimatedSprite, OverrideTexture);
ChangeFrameTexture(AnimatorNames.Run, AnimatedSprite, OverrideTexture);
ChangeFrameTexture(AnimatorNames.ReverseRun, AnimatedSprite, OverrideTexture);
}
Holster = new Holster(this);
Face = FaceDirection.Right;
//连接互动物体信号
InteractiveArea = GetNode<Area2D>("InteractiveArea");
InteractiveArea.Connect("area_entered", this, nameof(_OnPropsEnter));
InteractiveArea.Connect("area_exited", this, nameof(_OnPropsExit));
}
public override void _Process(float delta)
{
base._Process(delta);
//检查可互动的道具
bool findFlag = false;
for (int i = 0; i < InteractiveItemList.Count; i++)
{
var item = InteractiveItemList[i];
if (item == null)
{
InteractiveItemList.RemoveAt(i--);
}
else
{
//找到可互动的道具了
if (!findFlag)
{
var result = item.CheckInteractive(this);
if (result.CanInteractive) //可以互动
{
findFlag = true;
if (InteractiveItem != item) //更改互动物体
{
InteractiveItem = item;
ChangeInteractiveItem(result);
}
else if (result.ShowIcon != TempResultData.ShowIcon) //切换状态
{
ChangeInteractiveItem(result);
}
}
TempResultData = result;
}
}
}
//没有可互动的道具
if (!findFlag && InteractiveItem != null)
{
InteractiveItem = null;
ChangeInteractiveItem(null);
}
}
/// <summary>
/// 拾起一个武器, 并且切换到这个武器
/// </summary>
/// <param name="weapon">武器对象</param>
public void PickUpWeapon(Weapon weapon)
{
if (Holster.PickupWeapon(weapon) != -1)
{
//从可互动队列中移除
InteractiveItemList.Remove(weapon);
}
}
/// <summary>
/// 切换到下一个武器
/// </summary>
public void TriggerExchangeNext()
{
Holster.ExchangeNext();
}
/// <summary>
/// 切换到上一个武器
/// </summary>
public void ExchangePrev()
{
Holster.ExchangePrev();
}
/// <summary>
/// 扔掉当前使用的武器, 切换到上一个武器
/// </summary>
public void TriggerThrowWeapon()
{
var weapon = Holster.RmoveWeapon(Holster.ActiveIndex);
//播放抛出效果
if (weapon != null)
{
weapon.StartThrowWeapon(this);
}
}
/// <summary>
/// 返回是否存在可互动的物体
/// </summary>
public bool HasInteractive()
{
return InteractiveItem != null;
}
/// <summary>
/// 触发与碰撞的物体互动, 并返回与其互动的物体
/// </summary>
public ActivityObject TriggerInteractive()
{
if (HasInteractive())
{
var item = InteractiveItem;
item.Interactive(this);
return item;
}
return null;
}
/// <summary>
/// 触发换弹
/// </summary>
public void TriggerReload()
{
if (Holster.ActiveWeapon != null)
{
Holster.ActiveWeapon._Reload();
}
}
/// <summary>
/// 触发攻击
/// </summary>
public void TriggerAttack()
{
if (Holster.ActiveWeapon != null)
{
Holster.ActiveWeapon.Trigger();
}
}
/// <summary>
/// 设置脸的朝向
/// </summary>
private void SetFace(FaceDirection face)
{
if (_face != face)
{
_face = face;
if (face == FaceDirection.Right)
{
RotationDegrees = 0;
Scale = StartScele;
}
else
{
RotationDegrees = 180;
Scale = new Vector2(StartScele.x, -StartScele.y);
}
}
}
/// <summary>
/// 更改指定动画的纹理
/// </summary>
private void ChangeFrameTexture(string anim, AnimatedSprite animatedSprite, Texture texture)
{
SpriteFrames spriteFrames = animatedSprite.Frames;
if (spriteFrames != null)
{
int count = spriteFrames.GetFrameCount(anim);
for (int i = 0; i < count; i++)
{
AtlasTexture temp = spriteFrames.GetFrame(anim, i) as AtlasTexture;
temp.Atlas = OverrideTexture;
}
}
}
/// <summary>
/// 连接信号: InteractiveArea.area_entered
/// 与物体碰撞
/// </summary>
private void _OnPropsEnter(Area2D other)
{
ActivityObject propObject = other.AsActivityObject();
if (propObject != null) //道具类型
{
if (!InteractiveItemList.Contains(propObject))
{
InteractiveItemList.Add(propObject);
}
}
}
/// <summary>
/// 连接信号: InteractiveArea.area_exited
/// 物体离开碰撞区域
/// </summary>
private void _OnPropsExit(Area2D other)
{
ActivityObject propObject = other.AsActivityObject();
if (propObject != null) //道具类型
{
if (InteractiveItemList.Contains(propObject))
{
InteractiveItemList.Remove(propObject);
}
if (InteractiveItem == propObject)
{
InteractiveItem = null;
ChangeInteractiveItem(null);
}
}
}
}
