Enemy spawning

Scripts/Actors/PreviewMarker3D.cs

@@ -0,0 +1,124 @@
+using Godot;
+
+namespace Cirno.Scripts.Actors;
+
+[Tool]
+public partial class PreviewMarker3D : Marker3D
+{
+    private Texture2D _texture;
+    protected Texture2D Texture
+    {
+        get => _texture;
+        set
+        {
+            _texture = value;
+            if (Engine.IsEditorHint())
+            {
+                QueueRedraw();
+            }
+        }
+    }
+
+    private bool _fixedSize;
+    private bool _billboard;
+    private float _pixelSize = 0.1f;
+
+    [Export]
+    protected bool FixedSize
+    {
+        get => _fixedSize;
+        set
+        {
+            _fixedSize = value;
+            if (Engine.IsEditorHint())
+            {
+                QueueRedraw();
+            }
+        }
+    }
+    
+    [Export]
+    protected bool Billboard
+    {
+        get => _billboard;
+        set
+        {
+            _billboard = value;
+            if (Engine.IsEditorHint())
+            {
+                QueueRedraw();
+            }
+        }
+    }
+    
+    [Export]
+    protected float PixelSize
+    {
+        get => _pixelSize;
+        set
+        {
+            _pixelSize = value;
+            if (Engine.IsEditorHint())
+            {
+                QueueRedraw();
+            }
+        }
+    }
+    
+    [ExportToolButton("Update Icon")] public Callable RedrawButton => Callable.From(Redraw);
+    [ExportToolButton("Clear Children")] public Callable ClearChildrenButton => Callable.From(ClearChildren);
+    private Sprite3D _sprite;
+    
+    public override void _Ready()
+    {
+        _sprite = GetNodeOrNull<Sprite3D>("Sprite3D");
+        ClearChildren();
+        if (Engine.IsEditorHint())
+        {
+            QueueRedraw();
+            return;
+        }
+    }
+    
+    private void Redraw()
+    {
+        QueueRedraw();
+    }
+
+    private void ClearChildren()
+    {
+        var children = GetChildren();
+        foreach (var child in children)
+        {
+            if (child is Sprite3D)
+            {
+                child.QueueFree();
+            }
+        }
+
+        _sprite = null;
+    }
+    
+    protected void QueueRedraw()
+    {
+        if (!Engine.IsEditorHint()) return;
+        if (_texture is null) return;
+
+        if (_sprite is null)
+        {
+            GD.Print("Remaking sprite");
+            _sprite = new EditorSprite3D();
+            this.AddChild(_sprite);
+            //_sprite.Owner = GetTree().EditedSceneRoot;
+        }
+        
+        _sprite.Texture = _texture;
+        //_sprite.SetRotationDegrees(new Vector3(-45, 45, 0));
+        _sprite.FixedSize = FixedSize;
+        _sprite.SetBillboardMode(Billboard ? BaseMaterial3D.BillboardModeEnum.Enabled : BaseMaterial3D.BillboardModeEnum.Disabled);
+        _sprite.TextureFilter = BaseMaterial3D.TextureFilterEnum.Nearest;
+        _sprite.PixelSize = PixelSize;
+        
+
+    }
+}