jump to the other direction when walljumping in Unity

Question

when walljumping I want the player jump to the other direction (away from the wall). Currently my wall check works fine.

I use

bool isCloseToWall = Physics2D.OverlapCircle(transform.position, wallCheckRadius, collisionMask);

for the check.

So in my Update method I handle the inputs

private void SetMovement() // Input handler in Update
{
    float horizontalInput = Input.GetAxisRaw(StringCollection.INPUT_HORIZONTAL);

    horizontalInput *= Input.GetKey(KeyCode.LeftShift) ? MOVEMENT_SPEED_RUN : MOVEMENT_SPEED_WALK;

    if (Input.GetKeyDown(KeyCode.Space))
    {
        if (groundCheck.IsGrounded) // Default jump from the ground
        {
            groundJumpPressed = true;
        }
        else // **not** grounded
        {
            if (wallCheck.IsCloseToWall) // jump from the wall
            {
                wallJumpPressed = true;
            }
        }
    }

    movement = new Vector2(horizontalInput, rigid.velocity.y); // set this for the FixedUpdate movement
}

and within my FixedUpdate I use the movement Vector and go for this

private void Move()
{
    if (groundCheck.IsGrounded)
    {
        if (groundJumpPressed) // Default jump from the ground
        {
            movement.y = JUMP_POWER;
            groundJumpPressed = false;
        }
    }
    else
    {
        if (wallCheck.IsCloseToWall)
        {
            if (wallJumpPressed) // Walljump
            {
                // jump away from wall
                wallJumpPressed = false;
            }
        }
    }

    if (movement != Vector2.zero)
    {
        rigid.velocity = movement; // move the player
    }
}

As you can see I have a missing part here when it comes to the wallJumpPressed part. I want the player jump away from the wall to the other direction.

What do I have to pass in there? I tried

movement.x *= -1; // change the direction

and

rigid.AddForce(new Vector2(-movement.x * jumpPower, jumpPower));

but this did not work.

Answer 1

这会影响您在空中的移动，但这是我更新它的方式：

private void SetMovement() // Input handler in Update
{
    // keep our y velocity on the rigidbody....
    movement.y = rigidbody.velocity.y;
    float horizontalInput = Input.GetAxisRaw(StringCollection.INPUT_HORIZONTAL);

    horizontalInput *= Input.GetKey(KeyCode.LeftShift) ? MOVEMENT_SPEED_RUN : MOVEMENT_SPEED_WALK;

    if (Input.GetKeyDown(KeyCode.Space))
    {
        if (groundCheck.IsGrounded) // Default jump from the ground
        {
            groundJumpPressed = true;
        }
        else // **not** grounded
        {
            if (wallCheck.IsCloseToWall) // jump from the wall
            {
                wallJumpPressed = true;
            }
        }
    }

    if (groundCheck.IsGrounded) // Default jump from the ground
    {
        // only instantly override x when we are on the ground.
        movement.x = horizontalInput;
    }
    else // **not** grounded
    {
        // since we are in the air, slowly lower or increase our 
        // change in direction using time.deltatime
        movement.x += horizontalInput * time.deltaTime;
        // clamp our values between our max and minimum speed.
        movement.x = Mathf.Clamp(movement.x, -MOVEMENT_SPEED_RUN, MOVEMENT_SPEED_RUN);
    }

}

private void Move()
{
    if (groundCheck.IsGrounded)
    {
        if (groundJumpPressed) // Default jump from the ground
        {
            movement.y = JUMP_POWER;
            groundJumpPressed = false;
        }
    }
    else
    {
        if (wallCheck.IsCloseToWall)
        {
            if (wallJumpPressed) // Walljump
            {
                // jump away from wall
                wallJumpPressed = false;
                // negate movement when we jump to the opposite direction
                // With changes to SetMovement, we can't just 0 out the 
                // movement.x since we are in the air.
                movement.x *= -1;  
            }
        }
    }

    if (movement != Vector2.zero)
    {
        rigid.velocity = movement; // move the player
    }
}