🎉 Initial Commit

✨ Grid system, player movement etc

Scripts/System/PlacementManager.cs

@@ -0,0 +1,40 @@
+using AceFieldNewHorizon.Scripts.Tiles;
+using Godot;
+
+namespace AceFieldNewHorizon.Scripts.System;
+
+public partial class PlacementManager : Node2D
+{
+    [Export] public PackedScene BuildingScene { get; set; }
+    [Export] public GridManager Grid { get; set; }
+
+    private Vector2I _hoveredCell;
+    private BaseTile _ghostBuilding;
+
+    public override void _Process(double delta)
+    {
+        // Snap mouse to grid
+        var mousePos = GetGlobalMousePosition();
+        _hoveredCell = GridUtils.WorldToGrid(mousePos);
+
+        if (_ghostBuilding == null)
+        {
+            _ghostBuilding = (BaseTile)BuildingScene.Instantiate();
+            _ghostBuilding.SetGhostMode(true);
+            AddChild(_ghostBuilding);
+        }
+
+        _ghostBuilding.Position = GridUtils.GridToWorld(_hoveredCell);
+        _ghostBuilding.SetGhostMode(true);
+
+        // Left click to place
+        if (!Input.IsActionPressed("build_tile") || !Grid.IsCellFree(_hoveredCell)) return;
+
+        _ghostBuilding.SetGhostMode(false);
+        Grid.OccupyCell(_hoveredCell, _ghostBuilding);
+
+        _ghostBuilding = (BaseTile)BuildingScene.Instantiate();
+        _ghostBuilding.SetGhostMode(true);
+        AddChild(_ghostBuilding);
+    }
+}