move world loaded check and message printing to plugin_enable()

plugins/seedwatch.cpp

@@ -100,7 +100,23 @@ string searchAbbreviations(string in)
 
 DFhackCExport command_result plugin_enable(color_ostream &out, bool enable)
 {
-    running = enable;
+    if(enable == true)
+    {
+        if(Core::getInstance().isWorldLoaded())
+        {
+            running = true;
+            out.print("seedwatch supervision started.\n");
+        } else {
+            out.printerr(
+                "This plugin needs a fortress to be loaded and will deactivate automatically otherwise.\n"
+                "Activate with 'seedwatch start' after you load the game.\n"
+                );
+        }
+    } else {
+        running = false;
+        out.print("seedwatch supervision stopped.\n");
+    }
+
     return CR_OK;
 }
 
@@ -142,22 +158,12 @@ command_result df_seedwatch(color_ostream &out, vector<string>& parameters)
         }
         else if(par == "start")
         {
-            if(Core::getInstance().isWorldLoaded())
+            plugin_enable(out, true);
-            {
-                running = true;
-                out.print("seedwatch supervision started.\n");
-            } else {
-                out.printerr(
-                    "This plugin needs a fortress to be loaded and will deactivate automatically otherwise.\n"
-                    "Activate with 'seedwatch start' after you load the game.\n"
-                    );
-            }
 
         }
         else if(par == "stop")
         {
-            running = false;
+            plugin_enable(out, false);
-            out.print("seedwatch supervision stopped.\n");
         }
         else if(par == "clear")
         {