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Recap: Coins in the Bank

Part of the Building Real Games section of Coddy's Unity journey. Lesson 26 of 60.

This chapter saved numbers with PlayerPrefs, gave a new player a default and kept a best only when it was beaten. This treasure hunt puts the saving and the default together.

challenge icon

Challenge

Medium

Bank the coins you dig; only the bank is saved.

  1. In Update(), Space adds 1 to pocket.
  2. In Start(), load bank from the key Bank, 10 if missing, and connect bankButton to a Deposit() that moves the pocket into the bank and saves it.
  3. After every change, show Pocket: 3 and Bank: 12.

Press Play, dig, bank and play again: the bank is kept. Then Check.

Try it yourself

using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class Digger : MonoBehaviour
{
    public TMP_Text pocketText;
    public TMP_Text bankText;
    public Button bankButton;

    private int pocket;
    private int bank;

    void Start()
    {
    }

    void Update()
    {
    }
}
quiz iconTest yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Building Real Games

1On-Screen Text

Canvas and TextShow the ScoreFormat NumbersA Countdown TimerRecap: Speedometer

4Scenes and Levels

Load a SceneRestart the LevelNext LevelKeep Between ScenesRecap: Level Select

7Time Control

Pause with timeScaleSlow MotionUnscaled TimeRecap: Bullet Time

10Project: 3D Platformer

The CourseMoving PlatformsProject lessonRide the PlatformProject lessonFall and RespawnProject lessonReach a CheckpointProject lessonGems on ScreenProject lessonFinish LineProject lessonBest TimeProject lesson

2Buttons and Screens

Buttons and onClickLambdasWiring in the InspectorPanels On and OffHealth BarsRecap: Upgrade Shop

5Saving with PlayerPrefs

Save a NumberLoad with a DefaultHigh ScoreSave SettingsRecap: Coins in the Bank

8Character Controller

CharacterController.MoveGravity by HandJumpingPushing ThingsMove Where You LookRecap: Double Jump

11Final Challenges

Shop and InventoryTime TrialSurvival NightThe End of the Night

3The Game Manager

One Script Runs the GameThe SingletonGame StatesSwitching on the StateRecap: Round Manager

6Project: Endless Runner

Three LanesObstacles AheadProject lessonSpeeding UpProject lessonScore on ScreenProject lessonCrash Ends the RunProject lessonRun AgainProject lessonBest RunProject lesson

9The New Input System

Two Input SystemsKeyboard and MousePressed This FrameInput ActionsRecap: Input Swap

Practice on your own: Unity playground