3D Aiming

Scripts/Components/Actors/KeyboardInputProvider.cs

@@ -123,6 +123,7 @@ public partial class KeyboardInputProvider : InputProvider
 
     private Vector2 GetMouseAimInput()
     {
+        
         return _mouseAImProvider?.GetMouseAimInput() ?? Vector2.Zero;
         // //Camera2D camera = GetViewport().GetCamera2D();
         // //if (camera == null) return Vector2.Zero; // Ensure there's a valid camera

Scripts/Components/Actors/MouseAimProvider3D.cs

@@ -5,13 +5,32 @@ namespace Cirno.Scripts.Components.Actors;
 
 public partial class MouseAimProvider3D : Node3D, IMouseAimProvider
 {
-    public Vector2 GetMouseAimInput()
+    private Viewport _viewport;
+
+    public override void _Ready()
     {
-        Vector2 mouseWorldPos = DisplayServer.MouseGetPosition();
+        _viewport = GetViewport();
-        
-        var screenPosition = CameraController3D.Instance.UnprojectPosition(this.GlobalPosition);
-        
-        return mouseWorldPos - screenPosition;
     }
     
+    public Vector2 GetMouseAimInput()
+    {
+        var mouseWorldPos = GetMouseWorldPosition(this.GlobalPosition.Y);
+        
+        var direction = (mouseWorldPos - this.GlobalPosition).Normalized();
+        
+        return new Vector2(direction.X, direction.Z);
+    }
+
+    public Vector3 GetMouseWorldPosition(float planeHeight = 0)
+    {
+        var mousePos = _viewport.GetMousePosition();
+        var rayOrigin = CameraController3D.Instance.ProjectRayOrigin(mousePos);
+        var rayDirection = CameraController3D.Instance.ProjectRayNormal(mousePos);
+
+        var plane = new Plane(Vector3.Up, planeHeight);
+        
+        var intersection = plane.IntersectsRay(rayOrigin, rayDirection);
+
+        return intersection ?? Vector3.Zero;
+    }
 }