Initial WIP status.

TerrariaUSaveEditor.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25420.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TerrariaUSaveEditor", "TerrariaUSaveEditor\TerrariaUSaveEditor.csproj", "{289EE2AD-A1C9-479A-9425-CE9F384374DC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{289EE2AD-A1C9-479A-9425-CE9F384374DC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{289EE2AD-A1C9-479A-9425-CE9F384374DC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{289EE2AD-A1C9-479A-9425-CE9F384374DC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{289EE2AD-A1C9-479A-9425-CE9F384374DC}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

TerrariaUSaveEditor/App.config

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+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    </startup>
+</configuration>

TerrariaUSaveEditor/Helper/ArrayHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TerrariaUSaveEditor.Helper
+{
+    public static class ArrayHelper
+    {
+        public static byte[] RemoveRange(byte[] data, int index, int length)
+        {
+            var buffer = data.ToList();
+            buffer.RemoveRange(index, length);
+
+            return buffer.ToArray();
+        }
+
+        public static byte[] AddRangeAtIndex(byte[] data, byte[] extraData, int index)
+        {
+            var buffer = data.ToList();
+            buffer.InsertRange(index, extraData.ToList());
+
+            return buffer.ToArray();
+        }
+
+        public static byte[] ColorToByteArray(Color color)
+        {
+            byte[] colorArray = new byte[3];
+            colorArray[0] = color.R;
+            colorArray[1] = color.G;
+            colorArray[2] = color.B;
+
+            return colorArray;
+        }
+    }
+}

TerrariaUSaveEditor/Helper/ItemHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TerrariaUSaveEditor.Helper
+{
+    public static class ItemHelper
+    {
+        public static List<InventoryData> GetItems(byte[] data, SlotType slotType)
+        {
+            List<InventoryData> items = new List<InventoryData>();
+            ushort slot = 0;
+
+            for (int i = 0; i < data.Length; i+=5)
+            {
+                var idArray = new byte[2];
+                Array.Copy(data, i, idArray, 0, 2);
+
+                if (IsEmptySlot(idArray))
+                {
+                    i -= 3;
+                }
+
+                int id = GetIDFromBytes(idArray);
+
+                items.Add(new InventoryData()
+                {
+                    Slot = slot,
+                    Item = Items.GetItem(id),
+                    SlotType = slotType,
+                    Prefix = (ushort)data[i + 4],
+                    Amount = (ushort)data[i + 3]
+                });
+
+                slot++;
+
+                if (GotAllSlots(slotType, slot))
+                {
+                    break;
+                }
+            }
+
+            return items;
+        }
+
+        private static bool GotAllSlots(SlotType slotType, int currentSlot)
+        {
+            switch (slotType)
+            {
+                case SlotType.Bar:
+                    return currentSlot == 10 ? true : false;
+                case SlotType.Inv:
+                    return currentSlot == 30 ? true : false;
+                case SlotType.Ammo:
+                    return currentSlot == 4 ? true : false;
+                case SlotType.Money:
+                    return currentSlot == 4 ? true : false;
+                default:
+                    throw new ArgumentException("Invalid SlotType");
+            }
+        }
+
+        private static bool IsEmptySlot(byte[] idData)
+        {
+            if (idData[0] == 0 &&
+                idData[1] == 0)
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        private static int GetIDFromBytes(byte[] idData)
+        {
+            if (idData[1] == 0)
+            {
+                return BitConverter.ToInt16(idData, 0);
+            }
+
+            Array.Reverse(idData);
+            return BitConverter.ToInt16(idData, 0);
+        }
+    }
+}

TerrariaUSaveEditor/Helper/OffsetHelper.cs

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+using System;
+using System.Collections.Generic;
+
+namespace TerrariaUSaveEditor.Helper
+{
+    public static class OffsetHelper
+    {
+        // Name length change all offsets.
+        public static int NameLength { get; set; }
+
+        // Empty slots get written as "00 00". Used slots uses 5 bytes. "ID ID ?? AMOUNT PREFIX"
+        public static int InventoryLength { get; set; }
+
+        private static int OffsetDiff => Name + NameLength;
+
+        // Character Offsets
+        public static int NameLengthInformation => 0x02;
+        public static int Name => 0x03;
+        public static int Difficutly => OffsetDiff + 0x00;
+        public static int Gender => OffsetDiff + 0x02;
+
+        // Color Offsets
+        public static int HairColor => OffsetDiff + 0x0B;
+        public static int BodyColor => HairColor + 0x03;
+        public static int EyeColor => BodyColor + 0x03;
+        public static int ShirtColor => EyeColor + 0x03;
+        public static int UnderShirtColor => ShirtColor + 0x03;
+        public static int PantsColor => UnderShirtColor + 0x03;
+        public static int ShoesColor => PantsColor + 0x03;
+
+        // Equip Offsets
+        /*
+         * Equip get saved right after Colors. 1 Accessory take 3 Bytes "ID ID ?PREFIX?"
+         * Again 2 Bytes as "00 00" if the slot is empty. 
+         * Based on this informations for accessory's, equipable items like armor should behave the same.
+         * */
+
+        // Inventory Offsets
+        public static int Inventory => OffsetDiff + 0x03D;
+
+        public static int CalcOffsetDiffInventory(List<InventoryData> invData)
+        {
+            int usedSlots = 0;
+            int emptySlots = 0;
+            foreach (var item in invData)
+            {
+                if (item.Item.Id != 0)
+                {
+                    usedSlots++;
+                }
+                else
+                {
+                    emptySlots++;
+                }
+            }
+
+            return (emptySlots * 2) + (usedSlots * 5);
+        }
+    }
+}

TerrariaUSaveEditor/Helper/ValidationHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace TerrariaUSaveEditor
+{
+    public static class ValidationHelper
+    {
+        public static bool IsNameValid(string name, out string error)
+        {
+            error = "OK";
+            if (string.IsNullOrEmpty(name))
+            {
+                error = "Name can't be empty.";
+                return false;
+            }
+
+            if (name.Length > 16)
+            {
+                error = "Name is longer then 16 chars.";
+                return false;
+            }
+
+            if (!Regex.Match(name, @"^[a-zA-Z 0-9\?\!\*]*$").Success)
+            {
+                error = "Only a-z, A-Z, 0-9, ?, * and ! are allowed chars.";
+                //error = $"Only a-z, A-Z, 0-9, ?, * and !{Environment.NewLine} are allowed chars.";
+                return false;
+            }
+
+            return true;
+        }
+
+        public static bool IsNameValid(string name)
+        {
+            string error = string.Empty;
+            return IsNameValid(name, out error);
+        }
+    }
+}

TerrariaUSaveEditor/InventoryData.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TerrariaUSaveEditor
+{
+    public enum SlotType
+    {
+        Bar,
+        Inv,
+        Ammo,
+        Money
+    }
+
+    public class InventoryData
+    {
+        public ushort Slot { get; set; }
+
+        public SlotType SlotType { get; set; }
+
+        public ItemData Item { get; set; }
+
+        public int Prefix { get; set; }
+
+        public ushort Amount { get; set; }
+
+        public InventoryData()
+        {
+        }
+
+        public InventoryData(ushort slot, SlotType slotType)
+        {
+            this.Slot = slot;
+            this.SlotType = slotType;
+            this.Item = Items.GetItem(0);
+            this.Prefix = 0;
+            this.Amount = 0;
+        }
+    }
+}

TerrariaUSaveEditor/ItemBox.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Drawing;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace TerrariaUSaveEditor
+{
+    public partial class ItemBox : Panel
+    {
+        public ItemBox()
+        {
+            this.InitializeComponent();
+            this.BorderStyle = BorderStyle.FixedSingle;
+            this.BackColor = Color.FromArgb(0 ,178, 238);
+            this.Size = new Size(45, 45);
+        }
+
+        public ItemBox(bool topBar)
+            : this()
+        {
+            if (topBar)
+            {
+                this.BackColor = Color.FromArgb(0, 191, 255);
+            }
+        }
+    }
+}