Moves ExamineSystem to Shared & adds next step info to construction examine (#1567)

Content.Shared/GameObjects/EntitySystems/SharedConstructionSystem.cs

@@ -0,0 +1,108 @@
+using System;
+using Content.Shared.Construction;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+using Robust.Shared.Map;
+using Robust.Shared.Maths;
+using Robust.Shared.Serialization;
+using Robust.Shared.Utility;
+
+namespace Content.Shared.GameObjects.EntitySystems
+{
+    public class SharedConstructionSystem : EntitySystem
+    {
+#pragma warning disable 649
+        [Dependency] private readonly ILocalizationManager _loc;
+#pragma warning restore 649
+        /// <summary>
+        ///     Sent client -> server to to tell the server that we started building
+        ///     a structure-construction.
+        /// </summary>
+        [Serializable, NetSerializable]
+        public class TryStartStructureConstructionMessage : EntitySystemMessage
+        {
+            /// <summary>
+            ///     Position to start building.
+            /// </summary>
+            public readonly GridCoordinates Location;
+
+            /// <summary>
+            ///     The construction prototype to start building.
+            /// </summary>
+            public readonly string PrototypeName;
+
+            public readonly Angle Angle;
+
+            /// <summary>
+            ///     Identifier to be sent back in the acknowledgement so that the client can clean up its ghost.
+            /// </summary>
+            public readonly int Ack;
+
+            public TryStartStructureConstructionMessage(GridCoordinates loc, string prototypeName, Angle angle, int ack)
+            {
+                Location = loc;
+                PrototypeName = prototypeName;
+                Angle = angle;
+                Ack = ack;
+            }
+        }
+
+        /// <summary>
+        ///     Sent client -> server to to tell the server that we started building
+        ///     an item-construction.
+        /// </summary>
+        [Serializable, NetSerializable]
+        public class TryStartItemConstructionMessage : EntitySystemMessage
+        {
+            /// <summary>
+            ///     The construction prototype to start building.
+            /// </summary>
+            public readonly string PrototypeName;
+
+            public TryStartItemConstructionMessage(string prototypeName)
+            {
+                PrototypeName = prototypeName;
+            }
+        }
+
+        /// <summary>
+        /// Send server -> client to tell the client that a ghost has started to be constructed.
+        /// </summary>
+        [Serializable, NetSerializable]
+        public class AckStructureConstructionMessage : EntitySystemMessage
+        {
+            public readonly int GhostId;
+
+            public AckStructureConstructionMessage(int ghostId)
+            {
+                GhostId = ghostId;
+            }
+        }
+
+        public void DoExamine(FormattedMessage message, ConstructionPrototype prototype, int stage, bool inDetailRange)
+        {
+            var stages = prototype.Stages;
+            if (stage >= 0 && stage < stages.Count)
+            {
+                var curStage = stages[stage];
+                if (curStage.Backward != null && curStage.Backward is ConstructionStepTool)
+                {
+                    var backward = (ConstructionStepTool) curStage.Backward;
+                    message.AddText(_loc.GetString("To deconstruct: {0}x {1} Tool", backward.Amount, backward.ToolQuality));
+                }
+                if (curStage.Forward != null && curStage.Forward is ConstructionStepMaterial)
+                {
+                    if (curStage.Backward != null)
+                    {
+                        message.AddText("\n");
+                    }
+                    var forward = (ConstructionStepMaterial) curStage.Forward;
+                    message.AddText(_loc.GetString("To construct: {0}x {1}", forward.Amount, forward.Material));
+                }
+            }
+        }
+    }
+}