🎉 Initial Commit

✨ Grid system, player movement etc

Scripts/System/GridManager.cs

@@ -0,0 +1,45 @@
+using System.Collections.Generic;
+using Godot;
+
+namespace AceFieldNewHorizon.Scripts.System;
+
+public partial class GridManager : Node
+{
+    private Dictionary<Vector2I, Node2D> _grid = new();
+
+    public bool IsCellFree(Vector2I cell)
+    {
+        return !_grid.ContainsKey(cell);
+    }
+
+    public void OccupyCell(Vector2I cell, Node2D building)
+    {
+        _grid[cell] = building;
+    }
+
+    public void FreeCell(Vector2I cell)
+    {
+        _grid.Remove(cell);
+    }
+}
+
+public static class GridUtils
+{
+    public const int TileSize = 54;
+
+    public static Vector2I WorldToGrid(Vector2 pos)
+    {
+        return new Vector2I(
+            Mathf.FloorToInt(pos.X / TileSize),
+            Mathf.FloorToInt(pos.Y / TileSize)
+        );
+    }
+
+    public static Vector2 GridToWorld(Vector2I cell)
+    {
+        return new Vector2(
+            cell.X * TileSize,
+            cell.Y * TileSize
+        );
+    }
+}

Scripts/System/GridManager.cs.uid

@@ -0,0 +1 @@
+uid://cudpc3w17mbsw

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);
+    }
+}

Scripts/System/PlacementManager.cs.uid

@@ -0,0 +1 @@
+uid://bx1wj7gn6vrqe