Unity3D: Basic Editor Field

BaseField.cs

[System.Serializable]
public class BaseField<T> {

	public string name;

	public T value;

	public Field(string name) {
		this.name = name;
		this.value = default(T);
	}

	public Field(string name, T defaultValue) {
		this.name = name;
		this.value = defaultValue;
	}

	public virtual T DrawField() {
		return default(T);
	}

}

CharacterModel.cs

[System.Serializable]
public class CharacterModel {

	public IntField id = new IntField("ID");

	public TextField name = new TextField("Name");

}

Database.cs

using System.Collections.Generic;

[System.Serializable]
public class Database {

	public CharacterModel character;

	public List<CharacterModel> characters = new List<CharacterModel>();

}

DatabaseEditorWindow.cs

public class DatabaseEditorWindow : EditorWindow {

	[MenuItem("Window/Database Editor", false, 2)]
	public static void OpenDatabaseEditorWindow() {
		EditorWindow.GetWindow(typeof(DatabaseEditorWindow), false, "DB Editor");
	}
	
	public Database database;
	
	public void OnGUI() {
		database.character.id.DrawField();
		database.character.name.DrawField();
		
		foreach (CharacterModel cm in database.characters) {
			cm.id.DrawField();
			cm.name.DrawField();
		}
	}

}

IntField.cs

[System.Serializable]
public class IntField : BaseField<int> {

	public IntField(string name) : base(name) {}
	
	public IntField(string name, int defaultValue) : base(name, defaultValue) {}

	public override int DrawField() {
		#if UNITY_EDITOR
		Value = UnityEditor.EditorGUILayout.IntField(Name, Value);
		return Value;
		#endif
	}

}

TextField.cs

[System.Serializable]
public class TextField : BaseField<string> {

	public TextField(string name) : base(name) {}
	
	public TextField(string name, string defaultValue) : base(name, defaultValue) {}

	public override string DrawField() {
		#if UNITY_EDITOR
		Value = UnityEditor.EditorGUILayout.TextField(Name, Value);
		return Value;
		#endif
	}

}