1 files changed, 98 insertions, 0 deletions
diff --git a/graphs/cpp/caste_or_cast/nurturer.cc b/graphs/cpp/caste_or_cast/nurturer.cc
new file mode 100644
index 0000000..09faa79
--- /dev/null
+++ b/graphs/cpp/caste_or_cast/nurturer.cc
@@ -0,0 +1,98 @@
+#include "nurturer.hh"
+
+#include <iostream>
+
+// The Colony class was forward declared in Ant header
+// We need to include its header here so we know Colony implementation
+#include "colony.hh"
+#include "provider.hh"
+
+void Nurturer::feedLarvae()
+{
+    if (food_stock_ < 0.5)
+        return;
+    size_t count = 0;
+    std::shared_ptr<Colony> colony = check_colony_access();
+    for (auto i = colony->workers_.begin(); i < colony->workers_.end(); i++)
+    {
+        // if it doesn't have food anymore, can't feed more larvae
+        if (food_stock_ < 0.5)
+            break;
+        std::shared_ptr<Worker> worker = *i;
+        // only feed if it is a larvae and if it is not already full (its
+        // food_level_ => 4)
+        if (DevelopmentStage::LARVA == worker->get_stage()
+            && worker->get_food_level() < 4)
+        {
+            worker->increment_food_level_by(0.5);
+            food_stock_ -= 0.5;
+            colony->cleanliness -= 0.3;
+            food_level_ -= 0.03;
+            count++;
+        }
+    }
+    std::cout << count << " larvae were fed by nurturer.\n";
+}
+
+void Nurturer::work()
+{
+    if (stage_ != DevelopmentStage::ADULT)
+        return;
+    if (food_stock_ > 0.5)
+    {
+        // eat before working
+        food_level_ += 0.5;
+        food_stock_ -= 0.5;
+        // complete its tasks
+        feedLarvae();
+        feedQueen();
+        cleanNest();
+    }
+    else
+        // make the ant more hungry
+        food_level_ -= 0.042;
+    //! call base class work() method
+    Worker::work();
+}
+bool Nurturer::communicate(std::weak_ptr<Ant> wk_receiver)
+{
+    if (wk_receiver.lock() == nullptr)
+        return false;
+    if (!Ant::communicate(wk_receiver))
+        return false;
+    std::cout << "Nurturer initiates communication.\n";
+    auto p = dynamic_cast<Provider*>(wk_receiver.lock().get());
+    if (p)
+    {
+        p->transferFood(*this);
+    }
+    return true;
+}
+void Nurturer::feedQueen()
+{
+    if (food_stock_ < 1)
+        return;
+    std::cout << "Feeding Queen.\n";
+    auto c = check_colony_access();
+    c->queen_->increment_food_level_by(1);
+    food_stock_--;
+    if (static_cast<int>(c->queen_->get_food_level()) > 0
+        && static_cast<int>(c->queen_->get_food_level()) % 6 == 0)
+        c->queen_->layEgg();
+    c->cleanliness -= .2;
+}
+
+void Nurturer::cleanNest()
+{
+    std::shared_ptr<Colony> colony = check_colony_access();
+    if (colony->cleanliness < 100)
+    {
+        // clean the nest according to the luck of the Nurturer
+        std::cout << "Cleaning nest: gained " << luck_ << " of cleanliness.\n";
+        auto cleanliness = colony->cleanliness + luck_;
+        colony->cleanliness = (cleanliness > 100) ? 100 : cleanliness;
+    }
+}
+
+// FIXME : Implements communicate(std::weak_ptr<Ant>) virtual overridden method
+// and feedQueen()