Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Game Development How to Make a Video Game Score, Enemies, and Game State Add a Start and End

Getting a bunch of errors

Getting the following errors, not sure why.

Assets/Scripts/GameState.cs(51,34): error CS0120: An object reference is required to access non-static member `PlayerHealth.alive'

Assets/Scripts/GameState.cs(74,31): error CS1061: Type UnityEngine.Texture' does not contain a definition forcolor' and no extension method color' of typeUnityEngine.Texture' could be found (are you missing a using directive or an assembly reference?)

Assets/Scripts/GameState.cs(74,31): error CS1061: Type UnityEngine.Texture' does not contain a definition forcolor' and no extension method color' of typeUnityEngine.Texture' could be found (are you missing a using directive or an assembly reference?)

Assets/Scripts/GameState.cs(74,31): error CS1061: Type UnityEngine.Texture' does not contain a definition forcolor' and no extension method color' of typeUnityEngine.Texture' could be found (are you missing a using directive or an assembly reference?)

Here is my code:

using UnityEngine; using System.Collections; using UnityEngine.UI;

public class GameState : MonoBehaviour {

private bool gameStarted = false;
[SerializeField]
private Texture gameStateText;
[SerializeField]
private GameObject player;
[SerializeField]
private BirdMovement birdMovement;
[SerializeField]
private FollowCamera followCamera;
private float restartDelay = 3f;
private float restartTimer;
private PlayerMovement playerMovement;
private PlayerHealth playerHealth;



// Use this for initialization
void Start () {
        Cursor.visible = false;

        playerMovement = player.GetComponent<PlayerMovement> ();
        playerHealth = player.GetComponent<PlayerHealth> ();

        // Prevent the player from moving at the start of the game
        playerMovement.enabled = false;

        //Prevent bird from moving at the start of the game
        birdMovement.enabled = false;

        //prevent the follow camera from moving to its game position
        followCamera.enabled = false;
}

// Update is called once per frame
void Update () {

    // If the game is not started and the player presses the spave bar...
    if (gameStarted == false && Input.GetKeyUp (KeyCode.Space)) {

        //...Start the game.
        StartGame ();
    }

    // If the player is no longer alive...
    if (PlayerHealth.alive == false) {

        //... end the game
        EndGame ();

        //...incremement a timer to count up to restarting...
        restartTimer = restartTimer + Time.deltaTime;

        //...and if it reaches the restart delay...
        if (restartTimer >= restartDelay) {

            //...then reload the currently loaded level.
            Application.LoadLevel (Application.loadedLevel);

        }
    }
}
private void StartGame() {

    // Set the game state
    gameStarted = true;

    //Removing the start text
    gameStateText.color = Color.clear;

    //Alow the player to move
    playerMovement.enabled = true;

    //Allow bird to move
    birdMovement.enabled = true;

    //Allow the camera to move
    followCamera.enabled = true;

}

    private void EndGame(){

    // Set the game state
    gameStarted = false;

    // Show the game over text
    gameStateText.color = Color.white;
    gameStateText.text = "Game Over!";

    //Remove the player from the game
    player.SetActive (false);

    }

}

2 Answers

Found the problem. Wrote the variable wrong.

private Texture gameStateText;

should be

private Text gameStateText;

Cameron Button
Cameron Button
1,084 Points

I had the same error but couldn't figure it out, I had TextAlignment instead of text

Figured out the problem with:

Assets/Scripts/GameState.cs(51,34): error CS0120: An object reference is required to access non-static member `PlayerHealth.alive'

I have no idea what the issue is with the color errors.