Re-organize all projects (#4166)

Content.Shared/Damage/DamageChangedMessage.cs

@@ -0,0 +1,52 @@
+#nullable enable
+using System.Collections.Generic;
+using Content.Shared.Damage.Components;
+using Robust.Shared.GameObjects;
+
+namespace Content.Shared.Damage
+{
+    public class DamageChangedMessage : ComponentMessage
+    {
+        public DamageChangedMessage(IDamageableComponent damageable, IReadOnlyList<DamageChangeData> data)
+        {
+            Damageable = damageable;
+            Data = data;
+        }
+
+        public DamageChangedMessage(IDamageableComponent damageable, DamageType type, int newValue, int delta)
+        {
+            Damageable = damageable;
+
+            var datum = new DamageChangeData(type, newValue, delta);
+            var data = new List<DamageChangeData> {datum};
+
+            Data = data;
+        }
+
+        /// <summary>
+        ///     Reference to the <see cref="IDamageableComponent"/> that invoked the event.
+        /// </summary>
+        public IDamageableComponent Damageable { get; }
+
+        /// <summary>
+        ///     List containing data on each <see cref="DamageType"/> that was changed.
+        /// </summary>
+        public IReadOnlyList<DamageChangeData> Data { get; }
+
+        public bool TookDamage
+        {
+            get
+            {
+                foreach (var datum in Data)
+                {
+                    if (datum.Delta > 0)
+                    {
+                        return true;
+                    }
+                }
+
+                return false;
+            }
+        }
+    }
+}