tModLoader Official tModLoader Help Thread

Argentum · Feb 1, 2021

My mistake, the code belongs in the part of the player file where you determine stat changes and similiar, in the 'UpdateBadLifeRegen' part.
If you have done this I recommend looking in Example mod
Edit:If you dont have Example mod i will show you example mods example.

Wolf Gamer · Feb 1, 2021

Its saying that the Accessory name Doesn't Exist in the current contest?

Argentum · Feb 1, 2021

What do you use to refer to the accesory?
A bool or the item name?
Using an item name is the wrong way to refer to a item in the player file.
Instead use a bool to refer to it.
Then put a reference in the accesory file.
I can provide an example for a accesory that uses the player file if you want.

Wolf Gamer · Feb 1, 2021

using Beskil.Items.Accesories;
using Beskil.Projectiles;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Terraria;
using Terraria.DataStructures;
using Terraria.GameInput;
using Terraria.ID;
using Terraria.ModLoader;
using Terraria.ModLoader.IO;

namespace Beskil
{
public class BeskilPlayer : ModPlayer
{
public override void UpdateBadLifeRegen()
{
if (BrainBand){

Projectile.NewProjectile(player.Center.X, player.Center.Y, 0f, 0f, ProjectileType <CreeperBand> ());
}
}

}
}

using System;
using System.Collections.Generic;
using System.IO;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria;
using Terraria.DataStructures;
using Terraria.ID;
using Terraria.ModLoader;

namespace Beskil.Items.Accesories
{
public class BrainBand : ModItem
{
public override void SetStaticDefaults()
{
DisplayName.SetDefault("Brain Band");
Tooltip.SetDefault("Shoots little Creepers");
}

public override void SetDefaults()
{
item.width = 28;
item.height = 20;
item.value = 0;
item.rare = -12;
item.accessory = true;
item.defense = 4;
}

public override void UpdateAccessory(Player player, bool hideVisual)
{
player.GetBeskilPlayer().BrainBand = true;
}
}
}

It still says it does not exist in the current context

Argentum · Feb 2, 2021

You are still missing a bool in the player file.
Put this in the raw player file: public bool BrainBand;
Now put this in the player file:

Code:

 public override void ResetEffects()
        {
            BrainBand = false
          
      
        }

Note that the way Im doing it here at all will (with a high chance) repeatedly create creepers.
I recommend creating an invisible projectile that only lasts for a short amount of time and will shoot the creepers if an enemy is nearby.
You could also extract the terraria code and look at the code for the volatile gelatin or the phantasm.

Wolf Gamer · Feb 2, 2021

using Beskil.Items.Accesories;
using Beskil.Projectiles;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Terraria;
using Terraria.DataStructures;
using Terraria.GameInput;
using Terraria.ID;
using Terraria.ModLoader;
using Terraria.ModLoader.IO;

namespace Beskil
{

public class BeskilPlayer : ModPlayer
{

public bool BrainBand;

public override void UpdateBadLifeRegen()
{
if (BrainBand){

Projectile.NewProjectile(player.Center.X, player.Center.Y, 0f, 0f, ProjectileType <CreeperBand> ());
}
}

public override void ResetEffects()
{
BrainBand = false;
}
}
}

using System;
using System.Collections.Generic;
using System.IO;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria;
using Terraria.DataStructures;
using Terraria.ID;
using Terraria.ModLoader;

namespace Beskil.Items.Accesories
{
public class BrainBand : ModItem
{

public override void SetStaticDefaults()
{
DisplayName.SetDefault("Brain Band");
Tooltip.SetDefault("Shoots little Creepers");
}

public override void SetDefaults()
{
item.width = 28;
item.height = 20;
item.value = 0;
item.rare = -12;
item.accessory = true;
item.defense = 4;
}

public override void UpdateAccessory(Player player, bool hideVisual)
{
player.GetBeskilPlayer().BrainBand = true;
}
}
}

Projectile Type does not exist in the current context

Argentum · Feb 2, 2021

Your file has no reference to the mod projectile.
Use using Beskil.Projectiles; at the top and/or write ModContent.ProjectileType <CreeperBand> ()

Wolf Gamer · Feb 2, 2021

I did both ways and they never worked. With the mod content it says I cant convert from float to Microsoft.Xna.Framework.Vector2

using Beskil.Items.Accesories;
using Beskil.Projectiles;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Terraria;
using Terraria.DataStructures;
using Terraria.GameInput;
using Terraria.ID;
using Terraria.ModLoader;
using Terraria.ModLoader.IO;

namespace Beskil
{

public class BeskilPlayer : ModPlayer
{

public bool BrainBand;

public override void UpdateBadLifeRegen()
{
if (BrainBand){

Projectile.NewProjectile(player.Center.X, player.Center.Y, 0f, 0f, ModContent.ProjectileType<CreeperBand>());
}
}

public override void ResetEffects()
{
BrainBand = false;
}
}
}

using System;
using System.Collections.Generic;
using System.IO;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria;
using Terraria.DataStructures;
using Terraria.ID;
using Terraria.ModLoader;
using Beskil.Projectiles;
using Beskil;

namespace Beskil.Items.Accesories
{
public class BrainBand : ModItem
{

public override void SetStaticDefaults()
{
DisplayName.SetDefault("Brain Band");
Tooltip.SetDefault("Shoots little Creepers");
}

public override void SetDefaults()
{
item.width = 28;
item.height = 20;
item.value = 0;
item.rare = -12;
item.accessory = true;
item.defense = 4;
}

public override void UpdateAccessory(Player player, bool hideVisual)
{
player.GetBeskilPlayer().BrainBand = true;
}
}
}

Argentum · Feb 2, 2021

Then I cant really help you, like I said I havent tested this before and Im not all knowing either
The example mod has a very good example for something like this or you could just look through the terraria code.
If you were to look through the code of terrria i still recommend looking at the code of the volatile gelatin.
Your error isnt the worst error you couldve gotten and I could probably fix it with enough time.
But I dont have the time.
I wish you good luck in future projects and hope that you find a solution.
If you have a question about the extrcation of terraria you can ask me.

michaelsoftman · Feb 4, 2021

Is there a way to have an item apply a debuff to all enemies currently on screen? Or is it not possible without using projectiles or something that will touch the mob?

Solo-Ion · Feb 5, 2021

Wolf Gamer said:
I did both ways and they never worked. With the mod content it says I cant convert from float to Microsoft.Xna.Framework.Vector2

using Beskil.Items.Accesories;
using Beskil.Projectiles;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Terraria;
using Terraria.DataStructures;
using Terraria.GameInput;
using Terraria.ID;
using Terraria.ModLoader;
using Terraria.ModLoader.IO;

namespace Beskil
{

public class BeskilPlayer : ModPlayer
{

public bool BrainBand;

public override void UpdateBadLifeRegen()
{
if (BrainBand){

Projectile.NewProjectile(player.Center.X, player.Center.Y, 0f, 0f, ModContent.ProjectileType<CreeperBand>());
}
}

public override void ResetEffects()
{
BrainBand = false;
}
}
}

using System;
using System.Collections.Generic;
using System.IO;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria;
using Terraria.DataStructures;
using Terraria.ID;
using Terraria.ModLoader;
using Beskil.Projectiles;
using Beskil;

namespace Beskil.Items.Accesories
{
public class BrainBand : ModItem
{

public override void SetStaticDefaults()
{
DisplayName.SetDefault("Brain Band");
Tooltip.SetDefault("Shoots little Creepers");
}

public override void SetDefaults()
{
item.width = 28;
item.height = 20;
item.value = 0;
item.rare = -12;
item.accessory = true;
item.defense = 4;
}

public override void UpdateAccessory(Player player, bool hideVisual)
{
player.GetBeskilPlayer().BrainBand = true;
}
}
}

I could be wrong but I think I see the problem. Where you have this,
Projectile.NewProjectile(player.Center.X, player.Center.Y, 0f, 0f, ModContent.ProjectileType<CreeperBand>());
put this instead,
Projectile.NewProjectile(player.Center.X, player.Center.Y, 0f, 0f, ModContent.ProjectileType<CreeperBand>(), 0, 0);
I hope that works.

Tyndareus · Feb 8, 2021

Seems theres still no support for packed files?
Or is there a way to build with a text/json file and have access to it even in the sideloaded state? (since Path becomes relative to steam)

Theres an ungodly amount of clutter appearing, or will appear in the future and since its all clutter caused by constructed objects I would prefer to be able to have the data stored, load it up, loop through, construct, done.
The only solution I have seen is to have a file saved in the Main.SavePath which isn't great if you want the file to already have something...
I could do a simple json database with REST but that might be overkill, and I'd also need to accommodate for lack of internet connection; other than writing to Main.SavePath.

direwolf420 · Feb 9, 2021

Tyndareus said:
Seems theres still no support for packed files?
Or is there a way to build with a text/json file and have access to it even in the sideloaded state? (since Path becomes relative to steam)

Theres an ungodly amount of clutter appearing, or will appear in the future and since its all clutter caused by constructed objects I would prefer to be able to have the data stored, load it up, loop through, construct, done.
The only solution I have seen is to have a file saved in the Main.SavePath which isn't great if you want the file to already have something...
I could do a simple json database with REST but that might be overkill, and I'd also need to accommodate for lack of internet connection; other than writing to Main.SavePath.

Are you talking about files within a packaged .tmod file, such as a json or txt file you as a modder can use? Or something that gets externally saved to Main.SavePath for the purpose of persistency? Both things are possible, the former is as easy as using the Mod.GetFileBytes method

Tyndareus · Feb 9, 2021

direwolf420 said:
Are you talking about files within a packaged .tmod file, such as a json or txt file you as a modder can use? Or something that gets externally saved to Main.SavePath for the purpose of persistency? Both things are possible, the former is as easy as using the Mod.GetFileBytes method

Ah GetFileBytes was what I wanted, but was confused when checking if the file existed and it said no ¬¬

Senkoco · Feb 9, 2021

Hey, I've started developing mods not so long ago. I've always been typing down everything by myself.
Can someone tell me how to show the code list thing?
Thank you in advance

EDIT: I found it by myself no need to answer me anymore
EDIT 2: Nevermind, it doesn't work

Senkoco · Feb 9, 2021

I am asking here:

So, i'm currently making a mod which adds "Necromanced" versions of the vanilla bosses.
But the only technique I know to give them the vanilla AIs is to set the aiType to the vanilla bosses ai types.
But doing so, I can't set a proper loot table for them to use.

Can anyone help me with that?
Thank you in advance.

(In case you need it, here is the code from my eye of cthulhu class)

C#:

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
using System.IO;
using Terraria;
using Terraria.ID;
using Terraria.ModLoader;
using NecromancedBosses.NPCs;

namespace NecromancedBosses.NPCs.NecromancedEOC {

    [AutoloadBossHead]
    public class NecromancedEOC : ModNPC {

        public override void SetStaticDefaults() {
            DisplayName.SetDefault("Necromanced Eye of Cthulhu");
            Main.npcFrameCount[npc.type] = 6;
        }

        public override void SetDefaults() {
            npc.width = 100;
            npc.height = 110;
            npc.aiStyle = 4;
            npc.damage = 45;
            npc.defense = 36;
            npc.lifeMax = 14000;
            npc.HitSound = SoundID.NPCHit1;
            npc.DeathSound = SoundID.NPCDeath1;
            npc.knockBackResist = 0f;
            npc.noGravity = true;
            npc.noTileCollide = true;
            npc.boss = true;
            npc.value = 30000f;
            aiType = 4;
        }

        public override void ScaleExpertStats(int numPlayers, float bosslifeScale) {
            npc.lifeMax = (int)(npc.lifeMax * 0.625f * bosslifeScale);
            npc.damage = (int)(npc.damage * 0.6f);
        }

        public override bool? DrawHealthBar(byte hbPosition, ref float scale, ref Vector2 position) {
            scale = 1.5f;
            return null;
        }

        public override void NPCLoot() {
            if (NecromancedNPCs.DownedNEOCBoss) {
                if (Main.expertMode) {
                    npc.DropBossBags();
                } else {
                    Item.NewItem((int)npc.position.X, (int)npc.position.Y, npc.width, npc.height, ModContent.ItemType<Items.NecromancedSoul>(), 9);
                    Item.NewItem((int)npc.position.X, (int)npc.position.Y, npc.width, npc.height, ItemID.GoldCoin, 5);
                }
            }
        }
    }
}

Tyndareus · Feb 12, 2021

Senkoco said:
I am asking here:

So, i'm currently making a mod which adds "Necromanced" versions of the vanilla bosses.
But the only technique I know to give them the vanilla AIs is to set the aiType to the vanilla bosses ai types.
But doing so, I can't set a proper loot table for them to use.

Can anyone help me with that?
Thank you in advance.

You need to set bossBag for DropBossBags to do something, since your boss isn't a carbon copy its just a shell, you can make custom boss bags and have whatever drop in there as well as your extra items.

Wolf Gamer · Feb 12, 2021

anyway I can make my items drop from vanilla boss bags?

Thanks in advance

Will-Banksy · Feb 14, 2021

Heyo all I don't suppose anyone could help me with this error?
I'm on Linux btw in case that's relevant

Parameter name: document
System.ArgumentNullException: Value cannot be null.
Parameter name: document
at Mono.Cecil.Cil.SequencePoint..ctor (Int32 offset, Document document) [0x00009] in data-0x7f6538f1d010
at Mono.Cecil.SignatureReader.ReadSequencePoints (Document document) [0x000f9] in data-0x7f6538f1d010
at Mono.Cecil.MetadataReader.ReadSequencePoints (MethodDefinition method) [0x0004e] in data-0x7f6538f1d010
at Mono.Cecil.Cil.PortablePdbReader.ReadSequencePoints (MethodDebugInformation method_info) [0x00000] in data-0x7f6538f1d010
at Mono.Cecil.Cil.PortablePdbReader.Read (MethodDefinition method) [0x00007] in data-0x7f6538f1d010
at Mono.Cecil.ImmediateModuleReader.ReadMethodsSymbols (TypeDefinition type, ISymbolReader symbol_reader) [0x0003d] in data-0x7f6538f1d010
at Mono.Cecil.ImmediateModuleReader.ReadTypesSymbols (Collection[T] types, ISymbolReader symbol_reader) [0x00029] in data-0x7f6538f1d010
at Mono.Cecil.ImmediateModuleReader.ReadSymbols (ModuleDefinition module) [0x00010] in data-0x7f6538f1d010
at Mono.Cecil.ModuleWriter.Write (ModuleDefinition module, Disposable[T] stream, WriterParameters parameters) [0x00039] in data-0x7f6538f1d010
at Mono.Cecil.ModuleWriter.WriteModule (ModuleDefinition module, Disposable[T] stream, WriterParameters parameters) [0x00002] in data-0x7f6538f1d010
at Mono.Cecil.ModuleDefinition.Write (String fileName, WriterParameters parameters) [0x00017] in data-0x7f6538f1d010
at Mono.Cecil.AssemblyDefinition.Write (String fileName, WriterParameters parameters) [0x00000] in data-0x7f6538f1d010
at Terraria.ModLoader.Core.ModCompile.BuildModForPlatform (BuildingMod mod, Boolean xna) [0x0025d] in tModLoader.exe
at Terraria.ModLoader.Core.ModCompile.Build (BuildingMod mod) [0x000d0] in tModLoader.exe
at Terraria.ModLoader.Core.ModCompile.Build (String modFolder) [0x00008] in tModLoader.exe
at Terraria.ModLoader.UI.UIBuildMod+<>c__DisplayClass5_0.<Build>b__0 (ModCompile mc) [0x00000] in tModLoader.exe
at Terraria.ModLoader.UI.UIBuildMod.BuildMod (Action[T] buildAction, Boolean reload) [0x0003a] in tModLoader.exe

Dawaidso · Feb 21, 2021

I cant open tmodloader while im on my second account on steam while i can normal terraria, why?

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