Godot-SpaceShooter/Scripts/PlayerShip.cs

using Godot;

namespace GodotspaceShooter.Scripts;

public partial class PlayerShip : Node3D {
    private const float jetTimerMax = 0.5f;
    private const float laserTimerMax = 1f;

    [Export] private CpuParticles3D cpulaser;
    [Export] private PackedScene explosion;
    [Export] private GpuParticles3D gpulaser;
    [Export] private Node3D jet;
    private float jetTimer = jetTimerMax;
    [Export] private PackedScene laser;
    private float laserTimer = laserTimerMax;

    [Export] private float moveVelocity = 10f;
    public float MoveVelocity => moveVelocity;
    [Export] private float rotationVelocity = 15f;
    public float RotationVelocity => rotationVelocity;

    [Export] public RigidBody3D PlayerRb;
    [Export] private Node3D shots;

    public Vector3 MoveDirection { get; set; }
    public Vector3 RotationDirection { get; set; }
    public bool Shooting { get; set; }

    public static PlayerShip Instance { get; private set; }

    public override void _Ready() {
        Position = new(0, 0, 5);
        Instance = this;
    }

    public override void _Process(double delta) {
        if (Shooting)
            if (laser.Instantiate() is Node3D shot) {
                shot.Position = PlayerRb.Position + new Vector3(0f, 0f, 0.74f);
                shots.AddChild(shot);
                SoundManager.Instance.Play(SoundManager.Sound.Laser, PlayerRb.Position);
                Shooting = false;
            }
    }

    public override void _PhysicsProcess(double delta) {
        //Movement
        if (MoveDirection != Vector3.Zero) {
            jet.Visible = true;
            KinematicCollision3D collision = PlayerRb.MoveAndCollide(MoveDirection * (float)delta);
            if (collision?.GetCollider() is Node3D collider) {
                Node3D parent = collider.GetParent<Node3D>();
                Vector3 collisionPosition = collision.GetPosition();
                switch (parent) {
                    case GameArea:
                        GD.Print($"PlayerShip hits GameArea");
                        break;
                    case Asteroid asteroid:
                        Explode(collisionPosition);
                        asteroid.Explode(collisionPosition);
                        break;
                }
            }
        }
        else {
            jet.Visible = false;
        }

        //Rotation
        PlayerRb.RotationDegrees = RotationDirection;
    }

    public void Explode(Vector3 collisionPosition) {
        if (explosion?.Instantiate() is GpuParticles3D ex) {
            GetParent().AddChild(ex);
            ex.Position = collisionPosition;
            ex.Emitting = true;
        }

        SoundManager.Instance.Play(SoundManager.Sound.PlayerExplosion, collisionPosition);
        GameManager.Instance.Lives--;
    }
}