Add new components: HealComponent, HitComponent, HomingMissileMotionComponent, LeverComponent, and TriggerLeverComponent

scripts/components/HomingMissileMotionComponent.cs

@@ -0,0 +1,64 @@
+using Godot;
+
+namespace Mr.BrickAdventures.scripts.components;
+
+public partial class HomingMissileMotionComponent : Node
+{
+    [Export] public LaunchComponent Launch { get; set; }
+    [Export] public float MaxSpeed { get; set; } = 16f;
+    [Export] public float Acceleration { get; set; } = 8f;
+    [Export] public float MaxTurnRate { get; set; } = 180f; // degrees per second
+    [Export] public float WobbleStrength { get; set; } = 5f; // degrees
+    [Export] public float Drag { get; set; } = 0.98f;
+    [Export] public float SteeringLerp { get; set; } = 0.05f; // low = sluggish, high = responsive
+    [Export] public Area2D DetectionArea { get; set; }
+    
+    private Vector2 _steeringDirection = Vector2.Zero;
+    private Vector2 _velocity = Vector2.Zero;
+    private Node2D _target = null;
+
+    public override void _Ready()
+    {
+        DetectionArea.BodyEntered += OnBodyEntered;
+        _velocity = Launch.GetInitialVelocity();
+    }
+
+    public override void _PhysicsProcess(double delta)
+    {
+        if (Launch == null) return;
+        if (Owner is not Node2D owner) return;
+        if (_target == null)
+        {
+            owner.Position += _velocity * (float)delta;
+            return;
+        }
+        
+        var toTarget = (_target.GlobalPosition - owner.GlobalPosition).Normalized();
+        _steeringDirection = _steeringDirection.Lerp(toTarget, SteeringLerp);
+        
+        var angleToTarget = _velocity.AngleTo(_steeringDirection);
+        var maxAngle = Mathf.DegToRad(MaxTurnRate) * (float)delta;
+        var clampedAngle = Mathf.Clamp(angleToTarget, -maxAngle, maxAngle);
+
+        var rng = new RandomNumberGenerator();
+        var wobble = Mathf.DegToRad(rng.RandfRange(-WobbleStrength, WobbleStrength));
+        clampedAngle += wobble;
+        
+        _velocity = _velocity.Rotated(clampedAngle);
+        _velocity *= Drag;
+
+        var desiredSpeed = Mathf.Min(MaxSpeed, _velocity.Length() + Acceleration * (float)delta);
+        _velocity = _velocity.Normalized() * desiredSpeed;
+        
+        owner.Position += _velocity * (float)delta;
+        owner.Rotation = _velocity.Angle();
+    }
+
+    private void OnBodyEntered(Node2D body)
+    {
+        if (_target != null) return;
+        if (body == null) return;
+        
+        _target = body;
+    }
+}