Why UI communicates game state in Unity - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to update the UI text with the player's score.

Unity

scoreText.text = "Score: " + [1].ToString();

Drag options to blanks, or click blank then click option'

AgameState

BscoreText

CUpdateScore

DplayerScore

Attempts:

3 left

💡 Hint

Common Mistakes

Using the UI text object itself instead of the score variable.

Using a method name instead of a variable.

The UI text should display the current player's score, which is stored in playerScore.

2fill in blank

medium

Complete the code to show the game over panel when the game ends.

Unity

if (gameState == GameState.GameOver) {
    [1].SetActive(true);
}

Drag options to blanks, or click blank then click option'

AgameOverPanel

BscoreText

Cplayer

DstartButton

Attempts:

3 left

💡 Hint

Common Mistakes

Activating the wrong UI element like the score text or player object.

Trying to activate a button instead of the panel.

The gameOverPanel UI element should be activated to show the game over screen.

3fill in blank

hard

Fix the error in the code that updates the health bar UI.

Unity

healthBar.fillAmount = [1] / maxHealth;

Drag options to blanks, or click blank then click option'

AplayerHealth

BhealthBar

CcurrentHealth

DmaxHealth

Attempts:

3 left

💡 Hint

Common Mistakes

Using maxHealth as numerator, which always results in 1.

Using the UI element variable instead of health value.

The health bar fill amount should be the ratio of currentHealth to maxHealth.

4fill in blank

hard

Fill both blanks to create a dictionary that maps game states to UI panels.

Unity

Dictionary<GameState, GameObject> uiPanels = new Dictionary<GameState, GameObject> {
    { GameState.Playing, [1] },
    { GameState.Paused, [2] }
};

Drag options to blanks, or click blank then click option'

AplayingPanel

BgameOverPanel

CpausedPanel

DstartPanel

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up panels for different game states.

Using the game over panel for Playing or Paused states.

The playingPanel corresponds to the Playing state, and pausedPanel corresponds to the Paused state.

5fill in blank

hard

Fill all three blanks to update the UI only when the game state changes.

Unity

if (currentState != [1]) {
    currentState = [2];
    UpdateUI([3]);
}

Drag options to blanks, or click blank then click option'

ApreviousState

BnewState

CcurrentState

DgameState

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong variable for comparison or assignment.

Passing the wrong state to the UpdateUI function.

We check if currentState is different, then assign newState to currentState, and update the UI with newState.