Implements "Construction yard exists" trigger event.

Author: CCHyper

src/extensions/tevent/teventext.cpp

@@ -205,6 +205,8 @@ const char *TEventClassExtension::Event_Name(int action)
             return "Power Greater Than...";
         case TEVENT_INFANTRY_DESTROYED:
             return "Destroyed, Infantry, All...";
+        case TEVENT_CONSTRUCTION_YARD:
+            return "Construction yard exists";
         default:
             return "<invalid>";
     }
@@ -249,6 +251,8 @@ const char *TEventClassExtension::Event_Description(int action)
             return "Triggers if the specified house's power is greater than or equal to the value specified.";
         case TEVENT_INFANTRY_DESTROYED:
             return "Triggers when all infantry of the specified side have been destroyed. Typically used for end of game conditions.";
+        case TEVENT_CONSTRUCTION_YARD:
+            return "Triggers if the specified house has one or more construction yards.";
         default:
             return "<invalid>";
     }
@@ -663,3 +667,18 @@ bool TEventClassExtension::Infantry_Destroyed(TEventClass *this_ptr, TEventType
 
     return false;
 }
+
+
+/**
+ *  Evaluation function for "TEVENT_CONSTRUCTION_YARD".
+ * 
+ *  @author: CCHyper
+ */
+bool TEventClassExtension::House_Has_Construction_Yard(TEventClass *this_ptr, TEventType event, HouseClass *house, const ObjectClass *object, TDEventClass &td, bool &tripped, TechnoClass *source)
+{
+    if (house->ConstructionYards.Count() > 0) {
+        return true;
+    }
+
+    return false;
+}

src/extensions/tevent/teventext.h

@@ -91,4 +91,5 @@ TEventClassExtension final : public AbstractClassExtension
         static bool Power_Less_Than(TEventClass *this_ptr, TEventType event, HouseClass *house, const ObjectClass *object, TDEventClass &td, bool &tripped, TechnoClass *source);
         static bool Power_Greater_Than(TEventClass *this_ptr, TEventType event, HouseClass *house, const ObjectClass *object, TDEventClass &td, bool &tripped, TechnoClass *source);
         static bool Infantry_Destroyed(TEventClass *this_ptr, TEventType event, HouseClass *house, const ObjectClass *object, TDEventClass &td, bool &tripped, TechnoClass *source);
+        static bool House_Has_Construction_Yard(TEventClass *this_ptr, TEventType event, HouseClass *house, const ObjectClass *object, TDEventClass &td, bool &tripped, TechnoClass *source);
 };

src/vinifera/vinifera_defines.h

@@ -185,6 +185,7 @@ typedef enum ExtTEventType
     TEVENT_POWER_LESS_THAN,
     TEVENT_POWER_GREATER_THAN,
     TEVENT_INFANTRY_DESTROYED,
+    TEVENT_CONSTRUCTION_YARD,
 
     /**
      *  The new total ExtTEventType count.