Rework projectiles and fix some demon wall attacks

Still working on Demon Wall boss fight overall

Zennysoft.Game.Ma/src/projectile/ProjectileSystem.cs

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+using Chickensoft.AutoInject;
+using Chickensoft.Introspection;
+using Godot;
+using Zennysoft.Game.Ma;
+
+[Meta(typeof(IAutoNode))]
+public partial class ProjectileSystem : Node3D
+{
+  public override void _Notification(int what) => this.Notify(what);
+
+  [Dependency] protected IMap _map => this.DependOn<IMap>();
+
+  [Export] public PackedScene ProjectileScene { get; set; }
+
+  [Export] private float _projectileForce { get; set; } = 7f;
+
+  public void Fire()
+  {
+    var instantiator = new Instantiator(GetTree());
+    var projectile = instantiator.LoadAndInstantiate<RigidBody3D>(ProjectileScene.ResourcePath);
+    _map.AddChild(projectile);
+    projectile.GlobalPosition = GlobalPosition;
+    projectile.GlobalBasis = GlobalBasis;
+    projectile.ResetPhysicsInterpolation();
+    projectile.ApplyCentralImpulse(projectile.GlobalBasis.Z * _projectileForce);
+  }
+}

Zennysoft.Game.Ma/src/projectile/ProjectileSystem.cs.uid

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+uid://chxka5g7yvcg