309 lines
10 KiB
C#
309 lines
10 KiB
C#
using System.Collections.Generic;
|
||
using ColdMint.scripts.debug;
|
||
using ColdMint.scripts.inventory;
|
||
using ColdMint.scripts.map.events;
|
||
using ColdMint.scripts.projectile;
|
||
using ColdMint.scripts.utils;
|
||
using Godot;
|
||
|
||
namespace ColdMint.scripts.weapon;
|
||
|
||
/// <summary>
|
||
/// <para>Projectile weapons</para>
|
||
/// <para>抛射体武器</para>
|
||
/// </summary>
|
||
/// <remarks>
|
||
///<para>These weapons can fire projectiles to attack the enemy.For example: guns and scepters.Generate a bullet to attack the enemy.</para>
|
||
///<para>这类武器可发射抛射体，攻击敌人。例如：枪支和法杖。生成一个子弹攻击敌人。</para>
|
||
/// </remarks>
|
||
public partial class ProjectileWeapon : WeaponTemplate
|
||
{
|
||
/// <summary>
|
||
/// <para>The formation position of the projectile</para>
|
||
/// <para>抛射体的生成位置</para>
|
||
/// </summary>
|
||
private Marker2D? _marker2D;
|
||
|
||
/// <summary>
|
||
/// <para>Number of slots for ranged weapons</para>
|
||
/// <para>远程武器的槽位数量</para>
|
||
/// </summary>
|
||
[Export]
|
||
private int _numberSlots;
|
||
|
||
/// <summary>
|
||
/// <para>SpellList</para>
|
||
/// <para>法术列表</para>
|
||
/// </summary>
|
||
/// <remarks>
|
||
///<para>To make weapons out of the box, you need to configure pre-made spells here.</para>
|
||
///<para>为了使武器开箱即用，您需要在这里配置预制的法术。</para>
|
||
/// </remarks>
|
||
[Export]
|
||
private string[]? _spellList;
|
||
|
||
/// <summary>
|
||
/// <para>How many projectiles are generated per fire</para>
|
||
/// <para>每次开火生成多少个抛射体</para>
|
||
/// </summary>
|
||
public int NumberOfProjectiles { get; set; } = 1;
|
||
|
||
private readonly List<ISpell> _spells = new();
|
||
/// <summary>
|
||
/// <para>Saves the position of a spell with projectile generation</para>
|
||
/// <para>保存具有抛射体生成能力的法术位置</para>
|
||
/// </summary>
|
||
private readonly List<int> _spellProjectileIndexes = new();
|
||
|
||
/// <summary>
|
||
/// <para>Whether to fire spells in sequence</para>
|
||
/// <para>是否按顺序发射法术</para>
|
||
/// </summary>
|
||
[Export]
|
||
private bool _fireSequentially;
|
||
|
||
/// <summary>
|
||
/// <para>The index used the last time a spell was cast</para>
|
||
/// <para>上次发射法术时采用的索引</para>
|
||
/// </summary>
|
||
private int _lastUsedProjectileMagicIndex = -1;
|
||
|
||
/// <summary>
|
||
/// <para>Get next index</para>
|
||
/// <para>获取下次索引</para>
|
||
/// </summary>
|
||
/// <returns></returns>
|
||
private int GetNextProjectileMagicIndex()
|
||
{
|
||
if (_fireSequentially)
|
||
{
|
||
_lastUsedProjectileMagicIndex++;
|
||
if (_lastUsedProjectileMagicIndex >= _spellProjectileIndexes.Count)
|
||
{
|
||
_lastUsedProjectileMagicIndex = 0;
|
||
}
|
||
return _lastUsedProjectileMagicIndex;
|
||
}
|
||
else
|
||
{
|
||
return RandomUtils.Instance.Next(0, _spellProjectileIndexes.Count);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// <para>Gets the loading range of the spell</para>
|
||
/// <para>获取法术的加载范围</para>
|
||
/// </summary>
|
||
/// <returns>
|
||
///<para>Return array meaning: 0, starting position 1, ending position 2, with projectile generated spell position, length 3.</para>
|
||
///<para>返回数组的含义为：0,起始位置1,结束位置2,带有抛射体生成的法术位置，长度为3。</para>
|
||
/// </returns>
|
||
private int[] GetSpellScope()
|
||
{
|
||
var index = GetNextProjectileMagicIndex();
|
||
var projectileSpellPosition = _spellProjectileIndexes[index];
|
||
var endIndex = projectileSpellPosition;
|
||
var startIndex = 0;
|
||
if (index > 0)
|
||
{
|
||
//And the previous index can set the starting position.(The starting position is increased by 1 to avoid using spells with projectile generation as starting points.)
|
||
//还有前面的索引可设定起始位置。(这里起始位置加1是为了避免 具有抛射体生成能力的法术 作为起点。)
|
||
startIndex = _spellProjectileIndexes[index - 1] + 1;
|
||
}
|
||
if (index == _spellProjectileIndexes.Count - 1)
|
||
{
|
||
endIndex = _spells.Count - 1;
|
||
}
|
||
return [startIndex, endIndex, projectileSpellPosition];
|
||
}
|
||
|
||
public override int ItemType
|
||
{
|
||
get => Config.ItemType.ProjectileWeapon;
|
||
}
|
||
|
||
public override void LoadResource()
|
||
{
|
||
base.LoadResource();
|
||
_marker2D = GetNode<Marker2D>("Marker2D");
|
||
if (SelfItemContainer == null)
|
||
{
|
||
SelfItemContainer = new UniversalItemContainer(_numberSlots);
|
||
SelfItemContainer.AllowAddingItemByType(Config.ItemType.Spell);
|
||
//Reload pre-made spells.
|
||
//装填预制的法术。
|
||
if (_spellList is not { Length: > 0 }) return;
|
||
foreach (var spellId in _spellList)
|
||
{
|
||
if (string.IsNullOrEmpty(spellId))
|
||
{
|
||
continue;
|
||
}
|
||
var item = ItemTypeManager.CreateItem(spellId, this);
|
||
if (item is not ISpell spell)
|
||
{
|
||
continue;
|
||
}
|
||
//The spell is stored in memory and has not yet been loaded into the node tree. So we call the InvokeLoadResource method to initialize the resource.
|
||
//法术保存在内存中，尚未加载到节点树。所以我们调用InvokeLoadResource方法来初始化资源。
|
||
spell.LoadResource();
|
||
if (SelfItemContainer.CanAddItem(item))
|
||
{
|
||
SelfItemContainer.AddItem(item);
|
||
}
|
||
}
|
||
UpdateSpellCache();
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// <para>Update spell cache</para>
|
||
/// <para>更新法术缓存</para>
|
||
/// </summary>
|
||
/// <remarks>
|
||
///<para>This will parse available spells from inside the item container.</para>
|
||
///<para>这将从物品容器内解析可用的法术。</para>
|
||
/// </remarks>
|
||
public void UpdateSpellCache()
|
||
{
|
||
if (SelfItemContainer == null)
|
||
{
|
||
return;
|
||
}
|
||
_spells.Clear();
|
||
_spellProjectileIndexes.Clear();
|
||
var totalCapacity = SelfItemContainer.GetTotalCapacity();
|
||
for (var i = 0; i < totalCapacity; i++)
|
||
{
|
||
var item = SelfItemContainer.GetItem(i);
|
||
if (item == null)
|
||
{
|
||
continue;
|
||
}
|
||
if (item is not ISpell spell)
|
||
{
|
||
continue;
|
||
}
|
||
_spells.Add(spell);
|
||
var packedScene = spell.GetProjectile();
|
||
if (packedScene != null)
|
||
{
|
||
//Has the ability to generate projectiles.
|
||
//拥有抛射体生成能力。
|
||
_spellProjectileIndexes.Add(_spells.Count - 1);
|
||
}
|
||
}
|
||
}
|
||
|
||
private void OnItemDataChangeEvent(ItemDataChangeEvent itemDataChangeEvent)
|
||
{
|
||
UpdateSpellCache();
|
||
}
|
||
|
||
public override void _EnterTree()
|
||
{
|
||
base._EnterTree();
|
||
if (SelfItemContainer != null)
|
||
{
|
||
SelfItemContainer.ItemDataChangeEvent += OnItemDataChangeEvent;
|
||
}
|
||
}
|
||
|
||
public override void _ExitTree()
|
||
{
|
||
base._ExitTree();
|
||
if (SelfItemContainer != null)
|
||
{
|
||
SelfItemContainer.ItemDataChangeEvent -= OnItemDataChangeEvent;
|
||
}
|
||
}
|
||
|
||
protected override bool DoFire(Node2D? owner, Vector2 enemyGlobalPosition)
|
||
{
|
||
if (owner == null)
|
||
{
|
||
LogCat.LogError("owner_is_null");
|
||
return false;
|
||
}
|
||
|
||
if (_marker2D == null)
|
||
{
|
||
LogCat.LogError("marker2d_is_null");
|
||
return false;
|
||
}
|
||
|
||
if (GameSceneDepend.ProjectileContainer == null)
|
||
{
|
||
LogCat.LogError("projectile_container_is_null");
|
||
return false;
|
||
}
|
||
if (_spellProjectileIndexes.Count == 0)
|
||
{
|
||
LogCat.LogError("projectile_generate_magic_is_null");
|
||
return false;
|
||
}
|
||
var spellScope = GetSpellScope();
|
||
LogCat.LogWithFormat("projectile_weapon_range", LogCat.LogLabel.Default, true, string.Join(",", spellScope), _fireSequentially, _lastUsedProjectileMagicIndex);
|
||
//The final spell is a projectile generator.
|
||
//最后的法术是拥有抛射体生成能力的。
|
||
var spellProjectile = _spells[spellScope[2]];
|
||
var packedScene = spellProjectile.GetProjectile();
|
||
if (packedScene == null)
|
||
{
|
||
LogCat.LogError("projectile_scene_is_null");
|
||
return false;
|
||
}
|
||
ModifyWeapon(spellScope);
|
||
for (var i = 0; i < NumberOfProjectiles; i++)
|
||
{
|
||
var projectile = NodeUtils.InstantiatePackedScene<Projectile>(packedScene);
|
||
if (projectile == null)
|
||
{
|
||
LogCat.LogError("projectile_is_null");
|
||
RestoreWeapon(spellScope);
|
||
return false;
|
||
}
|
||
var velocity = _marker2D.GlobalPosition.DirectionTo(enemyGlobalPosition) * projectile.ActualSpeed;
|
||
for (var s = spellScope[0]; s <= spellScope[1]; s++)
|
||
{
|
||
var spell = _spells[s];
|
||
spell.ModifyProjectile(i, projectile, ref velocity);
|
||
}
|
||
NodeUtils.CallDeferredAddChild(GameSceneDepend.ProjectileContainer, projectile);
|
||
projectile.Owner = owner;
|
||
projectile.TargetNode = GameSceneDepend.TemporaryTargetNode;
|
||
projectile.Velocity = velocity;
|
||
projectile.Position = _marker2D.GlobalPosition;
|
||
}
|
||
RestoreWeapon(spellScope);
|
||
return true;
|
||
}
|
||
|
||
/// <summary>
|
||
/// <para>Modify weapon attributes</para>
|
||
/// <para>修改武器属性</para>
|
||
/// </summary>
|
||
/// <param name="spellScope"></param>
|
||
private void ModifyWeapon(int[] spellScope)
|
||
{
|
||
for (var i = spellScope[0]; i <= spellScope[1]; i++)
|
||
{
|
||
var spell = _spells[i];
|
||
spell.ModifyWeapon(this);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// <para>Restores modifications to weapons</para>
|
||
/// <para>恢复对武器的修改</para>
|
||
/// </summary>
|
||
/// <param name="spellScope"></param>
|
||
private void RestoreWeapon(int[] spellScope)
|
||
{
|
||
for (var i = spellScope[0]; i <= spellScope[1]; i++)
|
||
{
|
||
var spell = _spells[i];
|
||
spell.RestoreWeapon(this);
|
||
}
|
||
}
|
||
} |