286 lines
10 KiB
C#
286 lines
10 KiB
C#
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// Copyright (c) Pixel Crushers. All rights reserved.
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using UnityEngine;
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namespace PixelCrushers.DialogueSystem
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{
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/// <summary>
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/// Allows you to save and load games to the SaveSystem or PlayerPrefs without writing any scripts.
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/// To use this component:
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///
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/// -# Add this component to a game object.
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/// -# Set the playerPrefs key (i.e., saved game slot) where the game will be saved and loaded.
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/// To make multiple slots, you can add more GamerSaver components to change the playerPrefsKey
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/// field.
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/// -# To save a game, send the message "SaveGame" to this component (or call it from a script).
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/// For example, you can use the SendMessageOnConversation component to send the message.
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/// -# To load a game, send the message "LoadGame" to this component (or call it from a script).
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/// -# To restart the game, send the message "RestartGame" (or call it from a script).
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/// -# To record the state of the game without saving, for example when changing levels, send
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/// the "Record" message.
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/// -# To apply the saved state of the game, for example when returning to a level, send the
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/// "Apply" message.
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/// -# You can also configure this component to save or load when the player "uses" the game
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/// object. To do this:
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/// - Set Function On Use to Save or Load. This tells the component whether to save or load
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/// when it receives an OnUse message.
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/// - Send the message "OnUse" to this component or game object. For example, the sample
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/// Selector component sends OnUse when the player hits spacebar over the object.
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/// -# If you tick Apply Game State When Loading Levels, then this component will automatically
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/// apply the recorded game state as soon as the level is loaded. You're responsible for
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/// issuing the "Record" message before loading the level. You can use PersistentDataManager to
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/// do this.
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/// -# If the scene contains a LevelManager, it will load using the LevelManager
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/// instead of just applying the saved-game data.
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/// </summary>
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[AddComponentMenu("")] // Use wrapper.
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public class GameSaver : MonoBehaviour
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{
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public enum FunctionOnUse { None, Save, Load, Restart };
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/// <summary>
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/// The root of the PlayerPrefs key where the game will be saved and loaded.
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/// </summary>
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public string playerPrefsKey = "savedgame";
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/// <summary>
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/// The default slot. This number is appended to playerPrefsKey to make the complete
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/// PlayerPrefs key.
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/// </summary>
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public int slot = 0;
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/// <summary>
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/// The function (save or load) to perform when receiving the "OnUse" message.
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/// </summary>
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public FunctionOnUse functionOnUse = FunctionOnUse.None;
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/// <summary>
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/// If <c>true</c>, saved-game data will include all item fields. If <c>false</c>,
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/// it will only include quests' State and Track fields.
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/// </summary>
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public bool includeAllItemData = false;
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/// <summary>
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/// If <c>true</c>, saved-game data will include all location fields. If <c>false</c>,
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/// it will not include any location fields.
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/// </summary>
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public bool includeLocationData = false;
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/// <summary>
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/// If <c>true</c>, saved-game data will include the offered/spoken status of
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/// all dialogue entries.
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/// </summary>
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public bool includeSimStatus = false;
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/// <summary>
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/// The starting level to use when restarting the game.
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/// </summary>
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public string startingLevel = string.Empty;
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/// <summary>
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/// If <c>true</c>, this game object isn't destroyed when you load a new level.
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/// </summary>
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public bool dontDestroyOnLoad = false;
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public void Awake()
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{
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if (dontDestroyOnLoad)
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{
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this.transform.parent = null;
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DontDestroyOnLoad(this.gameObject);
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}
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PersistentDataManager.includeAllItemData = includeAllItemData;
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PersistentDataManager.includeLocationData = includeLocationData;
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PersistentDataManager.includeSimStatus = includeSimStatus;
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}
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/// <summary>
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/// Upon receiving an "OnUse" message, this method saves, loads, or does nothing, based on
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/// the value of functionOnUse.
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/// </summary>
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public void OnUse()
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{
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switch (functionOnUse)
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{
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case FunctionOnUse.Save:
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SaveGame(); break;
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case FunctionOnUse.Load:
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LoadGame(); break;
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default:
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break;
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}
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}
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/// <summary>
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/// Saves the game under the PlayerPrefs key, adding the slot number to support multiple
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/// save game slots.
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/// </summary>
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/// <param name='slot'>
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/// The slot to use.
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/// </param>
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public void SaveGame(int slot)
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{
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if (SaveSystem.instance != null)
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{
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SaveSystem.SaveToSlot(slot);
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}
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else
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{
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if (string.IsNullOrEmpty(playerPrefsKey))
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{
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if (DialogueDebug.logWarnings) Debug.LogWarning(string.Format("{0}: PlayerPrefs Key isn't set. Not saving.", new System.Object[] { DialogueDebug.Prefix }));
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return;
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}
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if (DialogueDebug.logInfo) Debug.Log(string.Format("{0}: Saving game in slot {1}.", new System.Object[] { DialogueDebug.Prefix, slot }));
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string key = playerPrefsKey + slot.ToString();
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PlayerPrefs.SetString(key, PersistentDataManager.GetSaveData());
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}
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}
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/// <summary>
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/// Saves the game in default slot 0.
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/// </summary>
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public void SaveGame()
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{
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SaveGame(slot);
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}
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/// <summary>
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/// Loads the game from the data saved under the PlayerPrefs key.
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/// </summary>
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public void LoadGame(int slot)
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{
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if (SaveSystem.instance != null)
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{
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SaveSystem.LoadFromSlot(slot);
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}
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else
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{
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if (string.IsNullOrEmpty(playerPrefsKey))
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{
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if (DialogueDebug.logWarnings) Debug.LogWarning(string.Format("{0}: PlayerPrefs Key isn't set. Not loading.", new System.Object[] { DialogueDebug.Prefix }));
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return;
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}
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string key = playerPrefsKey + slot.ToString();
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if (!PlayerPrefs.HasKey(key))
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{
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if (DialogueDebug.logWarnings) Debug.LogWarning(string.Format("{0}: No saved game in PlayerPrefs key '{1}'. Not loading.", new System.Object[] { DialogueDebug.Prefix, key }));
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return;
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}
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if (DialogueDebug.logInfo) Debug.Log(string.Format("{0}: Loading save data from slot {1} and applying it.", new System.Object[] { DialogueDebug.Prefix, slot }));
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// Load using the LevelManager if available; otherwise just apply saved-game data:
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string saveData = PlayerPrefs.GetString(key);
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LevelManager levelManager = FindLevelManager();
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if (levelManager != null)
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{
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levelManager.LoadGame(saveData);
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}
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else
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{
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PersistentDataManager.ApplySaveData(saveData, DatabaseResetOptions.KeepAllLoaded);
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DialogueManager.SendUpdateTracker(); // Update quest tracker HUD.
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}
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}
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}
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/// <summary>
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/// Loads the game from default slot 0.
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/// </summary>
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public void LoadGame()
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{
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LoadGame(slot);
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}
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/// <summary>
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/// Saves the game using a string parameter for the slot number.
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/// </summary>
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/// <param name='slotString'>
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/// Slot string to convert to an int.
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/// </param>
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public void SaveGame(string slotString)
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{
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SaveGame(StringToSlot(slotString));
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}
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/// <summary>
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/// Loads the game using a string parameter for the slot number.
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/// </summary>
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/// <param name='slotString'>
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/// Slot string to convert to an int.
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/// </param>
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public void LoadGame(string slotString)
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{
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LoadGame(StringToSlot(slotString));
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}
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/// <summary>
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/// Restarts the game.
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/// </summary>
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public void RestartGame()
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{
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LevelManager levelManager = FindLevelManager();
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if (SaveSystem.instance != null)
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{
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var startingSceneName = (levelManager != null && !string.IsNullOrEmpty(levelManager.defaultStartingLevel)) ? levelManager.defaultStartingLevel : startingLevel;
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SaveSystem.RestartGame(startingSceneName);
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}
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else
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{
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if (levelManager != null)
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{
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levelManager.RestartGame();
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}
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else
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{
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DialogueManager.ResetDatabase(DatabaseResetOptions.RevertToDefault);
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if (string.IsNullOrEmpty(startingLevel))
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{
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Tools.LoadLevel(0);
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}
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else
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{
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Tools.LoadLevel(startingLevel);
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}
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// Update quest tracker HUD:
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DialogueManager.SendUpdateTracker();
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}
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}
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}
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private LevelManager FindLevelManager()
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{
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var levelManager = GetComponentInChildren<LevelManager>();
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if (levelManager == null) levelManager = GameObjectUtility.FindFirstObjectByType<LevelManager>();
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return levelManager;
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}
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private int StringToSlot(string slotString)
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{
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int slot = 0;
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int.TryParse(slotString, out slot);
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return slot;
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}
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/// <summary>
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/// Records the state of the game.
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/// </summary>
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public void Record()
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{
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PersistentDataManager.Record();
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}
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/// <summary>
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/// Applies the recorded state of the game to the current scene.
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/// </summary>
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public void Apply()
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{
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PersistentDataManager.Apply();
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}
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}
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}
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