feat: add OnLogin and OnLogout events to ClientState

Dalamud/Game/ClientState/ClientState.cs

@@ -148,8 +148,30 @@ namespace Dalamud.Game.ClientState
             this.Actors.Dispose();
         }
 
+        private bool lastConditionNone = true;
+
+        /// <summary>
+        /// Event that fires when a character is logging in.
+        /// </summary>
+        public event EventHandler OnLogin;
+
+        /// <summary>
+        /// Event that fires when a character is logging out.
+        /// </summary>
+        public event EventHandler OnLogout;
+
         private void FrameworkOnOnUpdateEvent(Framework framework) {
-            // ignored
+            if (this.Condition.Any() && this.lastConditionNone == true) {
+                Log.Debug("Is login");
+                this.lastConditionNone = false;
+                OnLogin?.Invoke(this, null);
+            }
+                
+            if (!this.Condition.Any() && this.lastConditionNone == false) {
+                Log.Debug("Is logout");
+                this.lastConditionNone = true;
+                OnLogout?.Invoke(this, null);
+            }
         }
     }
 }

Dalamud/Game/ClientState/Condition.cs

@@ -38,5 +38,24 @@ namespace Dalamud.Game.ClientState
                 return *( bool* )( this.conditionArrayBase + idx );
             }
         }
+
+        public bool Any() {
+            var didAny = false;
+
+            for (var i = 0; i < MaxConditionEntries; i++)
+            {
+                var typedCondition = (ConditionFlag)i;
+                var cond = this[typedCondition];
+
+                if (!cond)
+                {
+                    continue;
+                }
+
+                didAny = true;
+            }
+
+            return didAny;
+        }
     }
 }