initialize repo

Lib/Civilization.Core/Actions/ExpandTerritoryAction.cs

@@ -0,0 +1,39 @@
+using Civilization.Core.Interfaces;
+
+
+namespace Civilization.Core.Actions;
+
+public class ExpandTerritoryAction(Guid cityId, Vec2I targetTile) : IGameAction
+{
+    public Guid CityId { get; } = cityId;
+    public Vec2I TargetTile { get; } = targetTile;
+    
+    public bool CanExecute(GameActionContext context)
+    {
+        var city = context.State.FindCity(CityId);
+        if (city == null || city.ActionPoints < 1) return false;
+        
+        if (!context.Map.Grid.IsValidPosition(TargetTile)) return false;
+        
+        var tile = context.Map.GetTile(TargetTile);
+        if (tile is not { OwnerId: null }) return false;
+
+        return city.Territory.Any(t =>
+        {
+            var neighbors = context.Map.GetNeighbors(t);
+            return neighbors.Contains(tile);
+        });
+    }
+
+    public void Execute(GameActionContext context)
+    {
+        var city = context.State.FindCity(CityId)!;
+        city.ClaimTile(context.Map, TargetTile);
+        city.SpendActionPoint();
+    }
+
+    public void Undo(GameActionContext context)
+    {
+        
+    }
+}