Power Transmission

Description:

Power Transmission is a game me and my team made for the Global Game Jam 2018. We made this at the location of Hogeschool van Amsterdam.

It’s co-op game in which you have to share your abilities with a fellow player to solve the puzzles and progress to the next level. The game can be played on PC or Mac with two Xbox controllers.

I worked mainly on gameplay, audio integration and UI.

Started: January 2018
Finished: March 2018

code:

This is a class I wrote for the movement of the player. It’s a 2D platformer, so all movement and physics are in 2D.

public class PlayerMovement : MonoBehaviour
{
    // Editable in inspector
    public float speed = 3.5f;
    public float jumpForce = 8.0f;

    // Declare in inspector
    public Transform groundCheck;
    public LayerMask whatIsGround;

    private Rigidbody2D rigidBody2D;
    private bool grounded = true;
    private float groundRadius = 0.2f;
    private float gravityScale;

    private float moveVertical;
    private float moveHorizontal;
    private float tempMove;
    private bool climbable = false;
    private bool facingRight = false;

    private void Start()
    {
        rigidBody2D = GetComponent<Rigidbody2D>();
        gravityScale = rigidBody2D.gravityScale;
        groundCheck = transform.GetChild(0);
    }

    private void FixedUpdate()
    {
        // Check if player touches a ground object
        grounded = Physics2D.OverlapCircle(groundCheck.position, groundRadius, whatIsGround);

        CheckHorizontalInput();
        CheckVerticalInput();
        CheckJumpInput();
    }

    // Check horizontal input, then move if player is grounded or turn mid-jump.
    private void CheckHorizontalInput()
    {
        moveHorizontal = (Input.GetAxis("Horizontal"));
        if (grounded)
        {
            rigidBody2D.velocity = new Vector2(moveHorizontal * speed, rigidBody2D.velocity.y);
        }
    }

    // Check vertical input and if player is in front of a climbable object, then move player up or down.
    private void CheckVerticalInput()
    {
        moveVertical = (Input.GetAxis("Vertical"));
        if (climbable)
        {
            rigidBody2D.velocity = new Vector2(moveHorizontal * speed, moveVertical * speed);
        }
    }

    // Check if jump button is pressed and if player is grounded, then apply force to the player's velocity.
    private void CheckJumpInput()
    {
        if (grounded && (Input.GetAxis("A_Button") >= 0.01))
        {
            rigidBody2D.velocity = new Vector2(rigidBody2D.velocity.x, jumpForce);
            tempMove = moveHorizontal;
        }
        else if (!grounded)
        {
            // If player turns mid-jump 
            if (tempMove > 0.01 && moveHorizontal < -0.01)
            {
                rigidBody2D.velocity = new Vector2(moveHorizontal * speed * 0.3f, rigidBody2D.velocity.y);
            }
            else if (tempMove < -0.01 && moveHorizontal > 0.01)
            {
                rigidBody2D.velocity = new Vector2(moveHorizontal * speed * 0.3f, rigidBody2D.velocity.y);
            }
        }
    }

    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.tag == "Stairs")
        {
            climbable = true;
            rigidBody2D.gravityScale = 0;
        }
    }

    private void OnTriggerExit2D(Collider2D collision)
    {
        if (collision.tag == "Stairs")
        {
            climbable = false;
            rigidBody2D.gravityScale = gravityScale;
        }
    }
}

public class PlayerMovement : MonoBehaviour

{

// Editable in inspector

public float speed = 3.5f;

public float jumpForce = 8.0f;

// Declare in inspector

public Transform groundCheck;

public LayerMask whatIsGround;

private Rigidbody2D rigidBody2D;

private bool grounded = true;

private float groundRadius = 0.2f;

private float gravityScale;

private float moveVertical;

private float moveHorizontal;

private float tempMove;

private bool climbable = false;

private bool facingRight = false;

private void Start()

{

rigidBody2D = GetComponent<Rigidbody2D>();

gravityScale = rigidBody2D.gravityScale;

groundCheck = transform.GetChild(0);

}

private void FixedUpdate()

{

// Check if player touches a ground object

grounded = Physics2D.OverlapCircle(groundCheck.position, groundRadius, whatIsGround);

CheckHorizontalInput();

CheckVerticalInput();

CheckJumpInput();

}

// Check horizontal input, then move if player is grounded or turn mid-jump.

private void CheckHorizontalInput()

{

moveHorizontal = (Input.GetAxis("Horizontal"));

if (grounded)

{

rigidBody2D.velocity = new Vector2(moveHorizontal * speed, rigidBody2D.velocity.y);

}

// Check vertical input and if player is in front of a climbable object, then move player up or down.

private void CheckVerticalInput()

{

moveVertical = (Input.GetAxis("Vertical"));

if (climbable)

{

rigidBody2D.velocity = new Vector2(moveHorizontal * speed, moveVertical * speed);

}

// Check if jump button is pressed and if player is grounded, then apply force to the player's velocity.

private void CheckJumpInput()

{

if (grounded && (Input.GetAxis("A_Button") >= 0.01))

{

rigidBody2D.velocity = new Vector2(rigidBody2D.velocity.x, jumpForce);

tempMove = moveHorizontal;

}

else if (!grounded)

{

// If player turns mid-jump

if (tempMove > 0.01 && moveHorizontal < -0.01)

{

rigidBody2D.velocity = new Vector2(moveHorizontal * speed * 0.3f, rigidBody2D.velocity.y);

}

else if (tempMove < -0.01 && moveHorizontal > 0.01)

{

rigidBody2D.velocity = new Vector2(moveHorizontal * speed * 0.3f, rigidBody2D.velocity.y);

}

private void OnTriggerEnter2D(Collider2D collision)

{

if (collision.tag == "Stairs")

{

climbable = true;

rigidBody2D.gravityScale = 0;

}

private void OnTriggerExit2D(Collider2D collision)

{

if (collision.tag == "Stairs")

{

climbable = false;

rigidBody2D.gravityScale = gravityScale;

}