1 files changed, 31 insertions, 0 deletions
diff --git a/src/Model/Building/Farm.php b/src/Model/Building/Farm.php
new file mode 100644
index 0000000..aaa58b5
--- /dev/null
+++ b/src/Model/Building/Farm.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Model\Building;
+
+use App\Model\Unit;
+use App\Model\Village;
+
+class Farm extends ResourceGenerator
+{
+  public string $unitType = 'Farmer';
+  public int $buildTimeFactor = 1;
+  public int $maxLevel = 25;
+
+  public array $resourceRequirements = [
+    'wood' => 1.0,
+  ];
+
+  public string $resourceType = 'food';
+
+  public function getResourceIncrementor(): int
+  {
+    $populationDemand = array_reduce(
+      Village::getUnits($this->villageId, Village::FETCH_UNIT_RESIDENCE),
+      function ($carry, Unit $unit) {
+        return $carry + $unit->getPopulationDemand();
+      }
+    );
+
+    return parent::getResourceIncrementor() - $populationDemand;
+  }
+}