How can I make a personalized structure or biome

[Talus]

I need help, I can't figure out how to make a custom structure or biome.

 

[CantWontDo]

tModLoader - Modding Tutorial: World Generation might help

 

[Talus]

thanks

 

[Snakicus123 (Some Idiot)]

I need help, I can't figure out how to make a custom structure or biome.

I have some code from my mod that might help.
Wrote down a few comments to help guide you.

Spoiler: Code For One Of My Custom Biomes

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Terraria;
using Terraria.GameContent.Generation;
using Terraria.ID;
using Terraria.ModLoader;
using Terraria.World.Generation;
using static Terraria.ModLoader.ModContent;

namespace EpicSword
{
public class Sanctuary : ModWorld
{
public override void ModifyWorldGenTasks(List<GenPass> tasks, ref float totalWeight)
{
int genIndex = tasks.FindIndex(genpass => genpass.Name.Equals("Shinies"));
if (genIndex == 1)
{
return;
}
tasks.Insert(genIndex + 1, new PassLegacy("Sheol", delegate (GenerationProgress progress)
{
progress.Message = "Creating the Sheol";
for (int i = 0; i < Main.maxTilesX / 900; i++) //900 is how many biomes. the bigger is the number = less biomes
{
int X = WorldGen.genRand.Next(1, Main.maxTilesX - 300);
int Y = WorldGen.genRand.Next((int)WorldGen.rockLayer - 100, Main.maxTilesY - 200);
int TileType = mod.TileType("SheolStone"); //this is the tile u want to use for the biome , if u want to use a vanilla tile then its int TileType = 56; 56 is obsidian block

WorldGen.TileRunner(X, Y, 350, WorldGen.genRand.Next(100, 200), TileType, false, 0f, 0f, true, true); //350 is how big is the biome 100, 200 this changes how random it looks.
for (int k = 0; k < 750; k++) //750 is the ore spawn rate. the bigger is the number = more ore spawns
{
int Xo = X + Main.rand.Next(-240, 240);
int Yo = Y + Main.rand.Next(-240, 240);
if (Main.tile[Xo, Yo].type == mod.TileType("SheolStone")) //this is the tile where the ore will spawn
{

{
WorldGen.TileRunner(Xo, Yo, (double)WorldGen.genRand.Next(3, 7), WorldGen.genRand.Next(5, 10), mod.TileType("Bedrock"), false, 0f, 0f, false, true); // 5, 10 is how big is the ore veins. mod.TileType("CustomOreTile") is the custom ore tile, if you want a vanilla ore just do this: TileID.Cobalt, for cobalt spawn
}
}
}
}
}));
}
}
}

 

[Snakicus123 (Some Idiot)]

Just a quick note, the biome code doesn't provide any music or custom backgrounds, just world gen changes

 

[DV Game]

I need help, I can't figure out how to make a custom structure or biome.

Biome - look in Example Mod.
Structure - wdym? custom block? or custom-shaped thing, which has a collider?

 

[Talus]

Thank you, Snakicus123 (Some Idiot)