I am trying to create an enemy for a 2D platformer that launches a projectile in an arc at the player position (think throwing a grenade, launching an arrow style parabola).

Everything works as expected if the player and enemy are more or less on the same x-axis (or similar, within a few units), but the further the difference on the x axis, the faster the projectile moves. This also happens the closer the target gets (but only if there is a difference in the x-axis).

I've included the code in the script that's attached to the projectile that moves it as everything else (the collision, the actual launching of the projectile, etc) works as it should.

GameObject target; // The player is the target
float velX = 10; // Initial x velocity is known
float velY; 

private void Start()
{
    // Initialize the target object
    target = GameObject.FindGameObjectWithTag("Player");
    // Reverse the x velocity depending on player position
    velX = target.transform.position.x > transform.position.x ? velX : -velX;
    // Calculate the time to impact
    float timeToImpact = (target.transform.position.x - transform.position.x) / velX;
    // Calculate the initial y velocity
    // Add 2 to the target position to aim at the top of the player - it's 2 units tall
    velY = (target.transform.position.y + 2f - transform.position.y + 0.5f * -Physics2D.gravity.y * (timeToImpact * timeToImpact)) / timeToImpact;
}

private void Update()
{
    // Set the rigidbody velocity
    Vector2 vel = new Vector2(velX, velY);
    GetComponent<Rigidbody2D>().velocity = vel;
    // Gravity alters the y velocity over time
    velY += Physics2D.gravity.y * Time.deltaTime;
} 

I'm sure that there's just some value that I need to divide or multiply one of the velocities or time by but I can't quite wrap my head around it.

I am trying to create an enemy for a 2D platformer that launches a projectile in an arc at the player position (think throwing a grenade, launching an arrow style parabola).

Everything works as expected if the player and enemy are more or less on the same y-axis (or similar, within a few units), but the further the difference on the y axis, the faster the projectile moves. This also happens the closer the target gets on the x-axis (but only if there is a difference in the y-axis).

I've included the code in the script that's attached to the projectile that moves it as everything else (the collision, the actual launching of the projectile, etc) works as it should.

GameObject target; // The player is the target
float velX = 10; // Initial x velocity is known
float velY; 

private void Start()
{
    // Initialize the target object
    target = GameObject.FindGameObjectWithTag("Player");
    // Reverse the x velocity depending on player position
    velX = target.transform.position.x > transform.position.x ? velX : -velX;
    // Calculate the time to impact
    float timeToImpact = (target.transform.position.x - transform.position.x) / velX;
    // Calculate the initial y velocity
    // Add 2 to the target position to aim at the top of the player - it's 2 units tall
    velY = (target.transform.position.y + 2f - transform.position.y + 0.5f * -Physics2D.gravity.y * (timeToImpact * timeToImpact)) / timeToImpact;
}

private void Update()
{
    // Set the rigidbody velocity
    Vector2 vel = new Vector2(velX, velY);
    GetComponent<Rigidbody2D>().velocity = vel;
    // Gravity alters the y velocity over time
    velY += Physics2D.gravity.y * Time.deltaTime;
} 

I'm sure that there's just some value that I need to divide or multiply one of the velocities or time by but I can't quite wrap my head around it.

I am trying to create an enemy that launches a projectile in an arc at the player position (think throwing a grenade, launching an arrow style parabola).

Everything works as expected if the player and enemy are more or less on the same x-axis (or similar, within a few units), but the further the difference on the x axis, the faster the projectile moves. This also happens the closer the target gets (but only if there is a difference in the x-axis).

I've included the code in the script that's attached to the projectile that moves it as everything else (the collision, the actual launching of the projectile, etc) works as it should.

GameObject target; // The player is the target
float velX = 10; // Initial x velocity is known
float velY; 

private void Start()
{
    // Initialize the target object
    target = GameObject.FindGameObjectWithTag("Player");
    // Reverse the x velocity depending on player position
    velX = target.transform.position.x > transform.position.x ? velX : -velX;
    // Calculate the time to impact
    float timeToImpact = (target.transform.position.x - transform.position.x) / velX;
    // Calculate the initial y velocity
    // Add 2 to the target position to aim at the top of the player - it's 2 units tall
    velY = (target.transform.position.y + 2f - transform.position.y + 0.5f * -Physics2D.gravity.y * (timeToImpact * timeToImpact)) / timeToImpact;
}

private void Update()
{
    // Set the rigidbody velocity
    Vector2 vel = new Vector2(velX, velY);
    GetComponent<Rigidbody2D>().velocity = vel;
    // Gravity alters the y velocity over time
    velY += Physics2D.gravity.y * Time.deltaTime;
} 

I'm sure that there's just some value that I need to divide or multiply one of the velocities or time by but I can't quite wrap my head around it.

I am trying to create an enemy for a 2D platformer that launches a projectile in an arc at the player position (think throwing a grenade, launching an arrow style parabola).

Everything works as expected if the player and enemy are more or less on the same x-axis (or similar, within a few units), but the further the difference on the x axis, the faster the projectile moves. This also happens the closer the target gets (but only if there is a difference in the x-axis).

I've included the code in the script that's attached to the projectile that moves it as everything else (the collision, the actual launching of the projectile, etc) works as it should.

GameObject target; // The player is the target
float velX = 10; // Initial x velocity is known
float velY; 

private void Start()
{
    // Initialize the target object
    target = GameObject.FindGameObjectWithTag("Player");
    // Reverse the x velocity depending on player position
    velX = target.transform.position.x > transform.position.x ? velX : -velX;
    // Calculate the time to impact
    float timeToImpact = (target.transform.position.x - transform.position.x) / velX;
    // Calculate the initial y velocity
    // Add 2 to the target position to aim at the top of the player - it's 2 units tall
    velY = (target.transform.position.y + 2f - transform.position.y + 0.5f * -Physics2D.gravity.y * (timeToImpact * timeToImpact)) / timeToImpact;
}

private void Update()
{
    // Set the rigidbody velocity
    Vector2 vel = new Vector2(velX, velY);
    GetComponent<Rigidbody2D>().velocity = vel;
    // Gravity alters the y velocity over time
    velY += Physics2D.gravity.y * Time.deltaTime;
} 

I'm sure that there's just some value that I need to divide or multiply one of the velocities or time by but I can't quite wrap my head around it.