fix running without calamity installed

Changes/BossKillListener.cs

@@ -1,9 +1,4 @@
 using System.Collections.Generic;
-using CalamityMod.NPCs.Crabulon;
-using CalamityMod.NPCs.DesertScourge;
-using CalamityMod.NPCs.HiveMind;
-using CalamityMod.NPCs.Perforator;
-using CalamityMod.NPCs.SlimeGod;
 using Microsoft.Xna.Framework;
 using Terraria;
 using Terraria.Chat;
@@ -13,6 +8,7 @@ using Terraria.ModLoader;
 
 namespace YHTMod.Changes;
 
+[ExtendsFromMod("CalamityMod")]
 public class BossKillListener : GlobalNPC {
 
     private static readonly Dictionary<int, string> BossIds = new();
@@ -29,12 +25,22 @@ public class BossKillListener : GlobalNPC {
         BossIds.Add(NPCID.SkeletronHead, "skeletron");
         BossIds.Add(NPCID.WallofFlesh, "wall_of_flesh");
         
-        if (ModLoader.HasMod("CalamityMod")) {
+        Mod calamity = CalamityHelper.GetCalamityMod();
-            BossIds.Add(ModContent.NPCType<DesertScourgeHead>(), "desert_scourge");
+        if (calamity == null) return;
-            BossIds.Add(ModContent.NPCType<Crabulon>(), "crabulon");
+        if (calamity.TryFind("DesertScourgeHead", out ModNPC desertScourgeHead)) {
-            BossIds.Add(ModContent.NPCType<PerforatorHive>(), "perforators");
+            BossIds.Add(desertScourgeHead.Type, "desert_scourge_head");
-            BossIds.Add(ModContent.NPCType<HiveMind>(), "hive_mind");
+        }
-            BossIds.Add(ModContent.NPCType<SlimeGodCore>(), "slime_god");
+        if (calamity.TryFind("Crabulon", out ModNPC crabulon)) {
+            BossIds.Add(crabulon.Type, "crabulon");
+        }
+        if (calamity.TryFind("PerforatorHive", out ModNPC perforatorHive)) {
+            BossIds.Add(perforatorHive.Type, "perforators");
+        }
+        if (calamity.TryFind("HiveMind", out ModNPC hiveMind)) {
+            BossIds.Add(hiveMind.Type, "hive_mind");
+        }
+        if (calamity.TryFind("SlimeGodCore", out ModNPC slimeGodCore)) {
+            BossIds.Add(slimeGodCore.Type, "slime_god");
         }
     }
 

Changes/CalamityHelper.cs

@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+using Terraria.ModLoader;
+
+namespace YHTMod.Changes;
+
+[ExtendsFromMod("CalamityMod")]
+public class CalamityHelper {
+    
+    public static readonly CalamityHelper Instance = new();
+
+    private static Dictionary<string, int> _bossIconIds;
+
+    private static Mod _calamity;
+
+    private CalamityHelper() {
+        ModLoader.TryGetMod("CalamityMod", out Mod calamity);
+        _calamity = calamity;
+        if (_calamity == null) return;
+
+        _bossIconIds = new Dictionary<string, int> {
+            { "desert_scourge", ModContent.TryFind("CalamityMod", "LoreDesertScourge", out ModItem item1) ? item1.Type : -1 },
+            { "crabulon", ModContent.TryFind("CalamityMod", "LoreCrabulon", out ModItem item2) ? item2.Type : -1 },
+            { "perforators", ModContent.TryFind("CalamityMod", "LorePerforators", out ModItem item3) ? item3.Type : -1 },
+            { "hive_mind", ModContent.TryFind("CalamityMod", "LoreHiveMind", out ModItem item4) ? item4.Type : -1 },
+            { "slime_god", ModContent.TryFind("CalamityMod", "LoreSlimeGod", out ModItem item5) ? item5.Type : -1 }
+        };
+    }
+
+    public static int GetBossIconId(string bossKey) {
+        return _bossIconIds.GetValueOrDefault(bossKey,  -1);
+    }
+    
+    public static Mod GetCalamityMod() {
+        return _calamity;
+    }
+    
+}

Changes/SummonerOnHitEffects.cs

@@ -7,20 +7,39 @@ using Vector2 = Microsoft.Xna.Framework.Vector2;
 
 namespace YHTMod.Changes;
 
+[ExtendsFromMod("CalamityMod")]
 public class SummonerOnHitEffects : GlobalProjectile {
+
     public override void OnSpawn(Projectile projectile, IEntitySource source) {
-        if (ModLoader.HasMod("CalamityMod") && projectile.type == ModContent.ProjectileType<CalamityMod.Projectiles.Boss.ShaderainHostile>()) {
+        Mod calamity = CalamityHelper.GetCalamityMod();
-            if (source is EntitySource_Parent { Entity: Projectile parentProj }) {
+        
-                int shadeType = ModContent.ProjectileType<CalamityMod.Projectiles.Boss.ShadeNimbusHostile>();
+        if (calamity is null
-                if (parentProj.type == shadeType && parentProj.friendly && !parentProj.hostile) {
+            || source is not EntitySource_Parent { Entity: Projectile { friendly: true } parentProj }
-                    projectile.friendly = true;
+            || parentProj.hostile
-                    projectile.hostile = false;
+        ) {
-                    projectile.DamageType = DamageClass.Summon;
+            base.OnSpawn(projectile, source);
-                    projectile.damage = parentProj.damage;
+            return;
-                }
-            }
         }
 
+        // Get Calamity projectile types safely
+        if (!calamity.TryFind("ShadeNimbusHostile", out ModProjectile shadeNimbus) 
+            || parentProj.type != shadeNimbus.Type
+        ) {
+            base.OnSpawn(projectile, source);
+            return;
+        }
+
+        if (!calamity.TryFind("ShaderainHostile", out ModProjectile shaderainHostile) || 
+            projectile.type != shaderainHostile.Type) {
+            base.OnSpawn(projectile, source);
+            return;
+        }
+
+        projectile.friendly = true;
+        projectile.hostile = false;
+        projectile.DamageType = DamageClass.Summon;
+        projectile.damage = parentProj.damage;
+
         base.OnSpawn(projectile, source);
     }
 

Items/SummonersAmbition.cs

@@ -5,6 +5,7 @@ using Terraria.GameContent.Creative;
 using Terraria.ID;
 using Terraria.Localization;
 using Terraria.ModLoader;
+using YHTMod.Changes;
 
 namespace YHTMod.Items;
 
@@ -47,7 +48,7 @@ public class SummonersAmbition : ModItem {
         }
 
         if (ModLoader.HasMod("CalamityMod") && player.SummonerAmbitions.Contains("desert_scourge")) {
-            int id = ModContent.ItemType<CalamityMod.Items.LoreItems.LoreDesertScourge>();
+            int id = CalamityHelper.GetBossIconId("desert_scourge");
             tooltips.Add(new TooltipLine(Mod, "SummonerAmbitionDesertScourge",
                 Language.GetTextValue("Mods.YHTMod.Items.SummonersAmbition.DesertScourge", "[i:" + id + "]")));
         }
@@ -58,7 +59,7 @@ public class SummonersAmbition : ModItem {
         }
 
         if (ModLoader.HasMod("CalamityMod") && player.SummonerAmbitions.Contains("crabulon")) {
-            int id = ModContent.ItemType<CalamityMod.Items.LoreItems.LoreCrabulon>();
+            int id = CalamityHelper.GetBossIconId("crabulon");
             tooltips.Add(new TooltipLine(Mod, "SummonerAmbitionCrabulon",
                 Language.GetTextValue("Mods.YHTMod.Items.SummonersAmbition.Crabulon", "[i:" + id + "]")));
         }
@@ -79,13 +80,13 @@ public class SummonersAmbition : ModItem {
         }
 
         if (ModLoader.HasMod("CalamityMod") && player.SummonerAmbitions.Contains("perforators")) {
-            int id = ModContent.ItemType<CalamityMod.Items.LoreItems.LorePerforators>();
+            int id = CalamityHelper.GetBossIconId("perforators");
             tooltips.Add(new TooltipLine(Mod, "SummonerAmbitionPerforators",
                 Language.GetTextValue("Mods.YHTMod.Items.SummonersAmbition.Perforators", "[i:" + id + "]")));
         }
 
         if (ModLoader.HasMod("CalamityMod") && player.SummonerAmbitions.Contains("hive_mind")) {
-            int id = ModContent.ItemType<CalamityMod.Items.LoreItems.LoreHiveMind>();
+            int id = CalamityHelper.GetBossIconId("hive_mind");
             tooltips.Add(new TooltipLine(Mod, "SummonerAmbitionHiveMind",
                 Language.GetTextValue("Mods.YHTMod.Items.SummonersAmbition.HiveMind", "[i:" + id + "]")));
         }
@@ -101,7 +102,7 @@ public class SummonersAmbition : ModItem {
         }
 
         if (ModLoader.HasMod("CalamityMod") && player.SummonerAmbitions.Contains("slime_god")) {
-            int id = ModContent.ItemType<CalamityMod.Items.LoreItems.LoreSlimeGod>();
+            int id = CalamityHelper.GetBossIconId("slime_god");
             tooltips.Add(new TooltipLine(Mod, "SummonerAmbitionSlimeGod",
                 Language.GetTextValue("Mods.YHTMod.Items.SummonersAmbition.SlimeGod", "[i:" + id + "]")));
         }
@@ -152,8 +153,6 @@ public class SummonersAmbition : ModItem {
                 return false;
             }
         }
-        
-        
 
         return bossesToCheck.All(boss => modPlayer.SummonerAmbitions.Contains(boss));
     }