Added the game difficulty configuration class and added the ability to generate scenes after projectiles kill enemies.

加入游戏难度的配置类，加入抛射体杀死敌人后生成场景的功能。

ColdMint.Traveler.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Godot.NET.Sdk/4.3.0-rc.1">
+<Project Sdk="Godot.NET.Sdk/4.3.0-rc.2">
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
     <TargetFramework Condition=" '$(GodotTargetPlatform)' == 'android' ">net7.0</TargetFramework>

data/itemRegs/weapons.yaml

@@ -7,6 +7,10 @@
 
 #staff_necromancy
 #死灵法杖
+# The Necromancy Staff will act differently on different difficulties.
+#死灵法杖在不同的难度下会有不同的行为。
+#The probability of generating monsters is as follows:Hard mode 100%, Normal mode 75%, easy mode 5%
+#以下是在击杀敌人后生成怪物的概率：困难模式100%，普通模式75%，简单模式5%
 - id: staff_necromancy
   scene_path: res://prefab/weapons/StaffNecromancy.tscn
   icon_path: res://sprites/weapon/StaffNecromancy_Icon.png

prefab/packsacks/PortableBackpacks.tscn

@@ -14,6 +14,9 @@ collision_layer = 8
 collision_mask = 38
 script = ExtResource("1_slakl")
 NumberSlots = 30
+BackpackAllowed = null
+_minContactInjury = null
+_maxContactInjury = null
 
 [node name="DamageArea2D" type="Area2D" parent="."]
 collision_layer = 8

prefab/weapons/StaffNecromancy.tscn

@@ -18,7 +18,10 @@ collision_mask = 34
 script = ExtResource("1_w8hhv")
 ProjectileScenes = [ExtResource("2_34250")]
 FiringIntervalAsMillisecond = 300
+_recoil = null
 UniqueIcon = ExtResource("3_31iau")
+_minContactInjury = null
+_maxContactInjury = null
 
 [node name="DamageArea2D" type="Area2D" parent="."]
 collision_layer = 8

scripts/Config.cs

@@ -21,6 +21,29 @@ public static class Config
         public const string Test = "test";
     }
     
+    /// <summary>
+    /// <para>Difficulty</para>
+    /// <para>游戏难度</para>
+    /// </summary>
+    public static class Difficulty
+    {
+        /// <summary>
+        /// <para>Simple mode</para>
+        /// <para>简单模式</para>
+        /// </summary>
+        public const int Easy = 0;
+        /// <summary>
+        /// <para>Normal mode</para>
+        /// <para>正常模式</para>
+        /// </summary>
+        public const int Normal = 1;
+        /// <summary>
+        /// <para>Hard mode</para>
+        /// <para>困难模式</para>
+        /// </summary>
+        public const int Hard = 2;
+    }
+
 
     /// <summary>
     /// <para>Camp ID</para>

scripts/loot/LootEntry.cs

@@ -47,7 +47,7 @@ public readonly struct LootEntry(string itemId, int minQuantity = 1, int maxQuan
 ///<para>Entries</para>
 ///<para>条目列表</para>
 /// </param>
-public readonly record struct LootGroup(double Chance, IEnumerable<LootEntry> Entries)
+public readonly record struct LootGroup(float Chance, IEnumerable<LootEntry> Entries)
 {
     private int WeightSum { get; } = Entries.Sum(entry => entry.Weight);
 

scripts/loot/LootRegister.cs

@@ -16,7 +16,7 @@ public static class LootRegister
         {
             List<LootGroup> lootGroups =
             [
-                new LootGroup(0.8,
+                new LootGroup(0.8f,
                 [
                     new LootEntry("staff_necromancy"),
                 ])

scripts/projectile/Projectile.cs

@@ -191,7 +191,7 @@ public partial class Projectile : CharacterBody2D
             {
                 //If the character is dead, then call OnKillCharacter
                 //如果角色死亡了，那么调用OnKillCharacter
-                InvokeDecorators(decorator => { decorator.OnKillCharacter(); });
+                InvokeDecorators(decorator => { decorator.OnKillCharacter(owner, characterTemplate); });
             }
 
             if (_knockbackForce != Vector2.Zero)

scripts/projectile/decorator/IProjectileDecorator.cs

@@ -1,3 +1,6 @@
+using ColdMint.scripts.character;
+using Godot;
+
 namespace ColdMint.scripts.projectile.decorator;
 
 /// <summary>
@@ -14,5 +17,13 @@ public interface IProjectileDecorator
     /// <para>When the character is killed by this projectile</para>
     /// <para>当角色被此抛射体击杀时</para>
     /// </summary>
-    void OnKillCharacter();
+    /// <param name="owner">
+    /// <para>owner</para>
+    /// <para>主人</para>
+    /// </param>
+    /// <param name="target">
+    ///<para>target</para>
+    ///<para>目标</para>
+    /// </param>
+    void OnKillCharacter(Node2D? owner, CharacterTemplate target);
 }

scripts/projectile/decorator/NodeSpawnOnKillCharacterDecorator.cs

@@ -0,0 +1,56 @@
+using ColdMint.scripts.character;
+using ColdMint.scripts.utils;
+using Godot;
+
+namespace ColdMint.scripts.projectile.decorator;
+
+/// <summary>
+/// <para>NodeSpawnOnKillCharacterDecorator</para>
+/// <para>在击杀角色后生成节点</para>
+/// </summary>
+public class NodeSpawnOnKillCharacterDecorator : IProjectileDecorator
+{
+    /// <summary>
+    /// <para>PackedScenePath</para>
+    /// <para>要实例化的场景路径</para>
+    /// </summary>
+    public string? PackedScenePath { get; set; }
+
+    /// <summary>
+    /// <para>DefaultParentNode</para>
+    /// <para>默认的父节点</para>
+    /// </summary>
+    public Node? DefaultParentNode { get; set; }
+
+    /// <summary>
+    /// <para>Chance</para>
+    /// <para>生成概率</para>
+    /// </summary>
+    public float Chance { get; set; } = 1f;
+
+    public void OnKillCharacter(Node2D? owner, CharacterTemplate target)
+    {
+        if (RandomUtils.Instance.NextSingle() > Chance)
+        {
+            //Not in probability, straight back.
+            //没有在概率内，直接返回。
+            return;
+        }
+
+        if (PackedScenePath == null || DefaultParentNode == null)
+        {
+            return;
+        }
+
+        var packedScene = GD.Load<PackedScene>(PackedScenePath);
+        var node2D = NodeUtils.InstantiatePackedScene<Node2D>(packedScene);
+        if (node2D == null)
+        {
+            return;
+        }
+
+        var container = NodeUtils.FindContainerNode(node2D, DefaultParentNode);
+        node2D.GlobalPosition = target.GlobalPosition;
+        NodeUtils.CallDeferredAddChild(container, node2D);
+    }
+}

scripts/utils/NodeUtils.cs

@@ -1,4 +1,5 @@
 using System;
+using ColdMint.scripts.character;
 using ColdMint.scripts.debug;
 using ColdMint.scripts.projectile;
 using Godot;
@@ -224,6 +225,11 @@ public static class NodeUtils
     /// <returns></returns>
     public static Node FindContainerNode(Node childNode, Node defaultParentNode)
     {
+        if (GameSceneNodeHolder.AiCharacterContainer!= null && childNode is AiCharacter)
+        {
+            return GameSceneNodeHolder.AiCharacterContainer;
+        }
+        
         if (GameSceneNodeHolder.ProjectileContainer != null && childNode is Projectile)
         {
             return GameSceneNodeHolder.ProjectileContainer;

scripts/weapon/ProjectileWeapon.cs

@@ -1,5 +1,6 @@
 using ColdMint.scripts.debug;
 using ColdMint.scripts.projectile;
+using ColdMint.scripts.projectile.decorator;
 using ColdMint.scripts.utils;
 using Godot;
 
@@ -63,6 +64,15 @@ public partial class ProjectileWeapon : WeaponTemplate
         // var projectileScene = _projectileCache[_projectiles[0]];
         var projectile = NodeUtils.InstantiatePackedScene<Projectile>(projectileScene);
         if (projectile == null) return;
+        if (Config.IsDebug())
+        {
+            var nodeSpawnOnKillCharacterDecorator = new NodeSpawnOnKillCharacterDecorator
+            {
+                DefaultParentNode = this,
+                PackedScenePath = "res://prefab/entitys/DelivererOfDarkMagic.tscn"
+            };
+            projectile.AddProjectileDecorator(nodeSpawnOnKillCharacterDecorator);
+        }
         NodeUtils.CallDeferredAddChild(GameSceneNodeHolder.ProjectileContainer, projectile);
         projectile.Owner = owner;
         projectile.Velocity = (enemyGlobalPosition - _marker2D.GlobalPosition).Normalized() * projectile.Speed;