SimpleDatabaseAsset.cs

// Richard Osborn
// A very simple, serializable database for storing primitive values in a scriptable object.

using System;
using System.Collections.Generic;
using UnityEngine;

/// <summary>
/// A simple database object that stores key-value pairs of primitive types.
/// </summary>
public class SimpleDatabaseAsset : ApexScriptableObject
{
  [SerializeField]
  private List<DatabaseEntry> entries;

  public void SetInt(string key, int value)
  {
    var entry = GetOrCreateEntry(key);
    entry.IntValue = value;
  }

  public int GetInt(string key, int defaultValue = default)
  {
    var entry = GetEntry(key);
    return entry != null ? entry.IntValue : defaultValue;
  }

  public void SetFloat(string key, float value)
  {
    var entry = GetOrCreateEntry(key);
    entry.FloatValue = value;
  }

  public float GetFloat(string key, float defaultValue = default)
  {
    var entry = GetEntry(key);
    return entry != null ? entry.FloatValue : defaultValue;
  }

  public void SetBool(string key, bool value)
  {
    var entry = GetOrCreateEntry(key);
    entry.BoolValue = value;
  }

  public bool GetBool(string key, bool defaultValue = default)
  {
    var entry = GetEntry(key);
    return entry != null ? entry.BoolValue : defaultValue;
  }

  public void SetString(string key, string value)
  {
    var entry = GetOrCreateEntry(key);
    entry.StringValue = value;
  }

  public string GetString(string key, string defaultValue = default)
  {
    var entry = GetEntry(key);
    return entry != null ? entry.StringValue : defaultValue;
  }

  private DatabaseEntry GetOrCreateEntry(string key)
  {
    var entry = entries.Find(e => e.Key == key);
    if (entry == null)
    {
      entry = new DatabaseEntry(key);
      entries.Add(entry);
    }
    return entry;
  }

  private DatabaseEntry GetEntry(string key)
  {
    return entries.Find(e => e.Key == key);
  }

  [Serializable]
  private class DatabaseEntry
  {
    public string Key;

    public int IntValue;
    public float FloatValue;
    public bool BoolValue;
    public string StringValue;

    public DatabaseEntry(string key)
    {
      Key = key;
    }
  }
}