Bullets follow mouse after being shot

Question

Hello everyone. I am a begginer in Godot and GDScript, so my question might have an obvious answer.

I am making a turret game but when the player shoots, the bullets follow the mouse.

Here is the code for bullet movement and spawning:

if Input.is_action_pressed("shoot_bullet") and can_fire:
    var bullet = bullet_scene.instance();

    bullet.position = $point.position;


    bullet.apply_impulse(Vector2(), Vector2(bullet_speed, 0).rotated(deg2rad(rotation_degrees - 90)));


    add_child(bullet);
    print("Shooted a bullet");

    can_fire = false;
    $Timer.start(fire_rate); yield($Timer, "timeout") 
    can_fire = true;

What is that I have implemented wrong? How can I stop this? Thanks in advance

Comments

I don't see any input from the mouse in your code.

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It is the "shoot_bullet" action. I have registered it as left click

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Does bullet have a script?

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None else that affects movement