Added Checkers (#6219)

Content.Server/Tabletop/TabletopCheckerSetup.cs

@@ -0,0 +1,71 @@
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Map;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.Manager.Attributes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Server.Tabletop
+{
+    [UsedImplicitly]
+    public class TabletopCheckerSetup : TabletopSetup
+    {
+        [DataField("boardPrototype", customTypeSerializer:typeof(PrototypeIdSerializer<EntityPrototype>))]
+        public string CheckerBoardPrototype { get; } = "CheckerBoardTabletop";
+
+        // TODO: Un-hardcode the rest of entity prototype IDs, probably.
+
+        public override void SetupTabletop(TabletopSession session, IEntityManager entityManager)
+        {
+            var checkerboard = entityManager.SpawnEntity(CheckerBoardPrototype, session.Position.Offset(-1, 0));
+
+            session.Entities.Add(checkerboard);
+
+            SpawnPieces(session, entityManager, session.Position.Offset(-4.5f, 3.5f));
+        }
+
+        private void SpawnPieces(TabletopSession session, IEntityManager entityManager, MapCoordinates topLeft, float separation = 1f)
+        {
+            var (mapId, x, y) = topLeft;
+
+            // Spawn all black pieces
+            SpawnPieces(session, entityManager, "Black", topLeft, separation);
+
+            // Spawn all white pieces
+            SpawnPieces(session, entityManager, "White", new MapCoordinates(x, y - 7 * separation, mapId), separation);
+
+            // Queens
+            for (int i = 1; i < 4; i++)
+            {
+                EntityUid tempQualifier = entityManager.SpawnEntity("BlackCheckerQueen", new MapCoordinates(x + 9 * separation + 9f / 32, y - i * separation, mapId));
+                session.Entities.Add(tempQualifier);
+
+                EntityUid tempQualifier1 = entityManager.SpawnEntity("WhiteCheckerQueen", new MapCoordinates(x + 8 * separation + 9f / 32, y - i * separation, mapId));
+                session.Entities.Add(tempQualifier1);
+            }
+
+        }
+
+        private void SpawnPieces(TabletopSession session, IEntityManager entityManager, string color, MapCoordinates left, float separation = 1f)
+        {
+          var (mapId, x, y) = left;
+          // If white is being placed it must go from bottom->up
+          var reversed = (color == "White") ? 1 : -1;
+
+          for (int i = 0; i < 3; i++)
+            {
+            var x_offset = i % 2;
+            if (reversed == -1) x_offset = 1 - x_offset; // Flips it
+
+            for (int j = 0; j < 8; j += 2)
+            {
+              // Prevents an extra piece on the middle row
+              if (x_offset + j > 8) continue;
+
+              EntityUid tempQualifier4 = entityManager.SpawnEntity(color + "CheckerPiece", new MapCoordinates(x + (j + x_offset) * separation, y + i * reversed * separation, mapId));
+              session.Entities.Add(tempQualifier4);
+            }
+          }
+        }
+    }
+}