3D Boss scripts implementation

Scripts/Resources/BulletScripts/SimpleMovementPattern3D.cs

@@ -0,0 +1,61 @@
+using Cirno.Scripts.AttackPatterns;
+using Cirno.Scripts.Utils;
+using Godot;
+
+namespace Cirno.Scripts.Resources.BulletScripts;
+
+[GlobalClass]
+[Tool]
+public partial class SimpleMovementPattern3D : AttackPattern
+{
+    [Export] private Vector2 relativeTargetPosition;
+    [Export] private float moveDuration = 2f;
+    [Export] private Tween.TransitionType transitionType = Tween.TransitionType.Linear;
+    [Export] private Tween.EaseType easeType = Tween.EaseType.InOut;
+
+    public override IPatternMachine MakeMachine(Node parent)
+    {
+        return new SimpleMovementPatternMachine(this, parent);
+    }
+
+    public class SimpleMovementPatternMachine(SimpleMovementPattern3D pattern, Node parent) : IPatternMachine
+    {
+        public Node Parent => parent;
+        
+        private Tween tween;
+        private bool isComplete = false;
+
+        protected IScriptHost3D Boss;
+    
+        public void Start()
+        {
+            if (parent is not IScriptHost3D boss)
+                return;
+        
+            Boss = boss;
+            tween = Parent.CreateTween();
+            isComplete = false;
+            
+            Vector2 targetPosition = (Boss?.HomePosition.ToVector2() ?? boss.ParentObject.GlobalPosition.ToVector2()) + pattern.relativeTargetPosition;
+
+            var targetPosition3D = targetPosition.ToVector3(boss.ParentObject.GlobalPosition.Y);
+        
+            boss.ChangeSpriteDirection(-(boss.ParentObject.GlobalPosition.ToVector2() - targetPosition));
+            tween.TweenProperty(boss.ParentObject, "global_position", targetPosition3D, pattern.moveDuration)
+                .SetTrans(pattern.transitionType)
+                .SetEase(pattern.easeType)
+                .Finished += () =>
+            {
+                isComplete = true;
+                boss.ChangeSpriteDirection(Vector2.Zero);
+            };
+        }
+
+        public void UpdatePattern(double delta) { }
+
+        public bool IsComplete()
+        {
+            return isComplete;
+        }
+    }
+}