🐐 DECIMATIO

centvrion/ast_nodes.py

@@ -957,6 +957,16 @@ class BuiltIn(Node):
           raise CentvrionError("SEMEN requires an integer seed")
         random.seed(seed)
         return vtable, ValNul()
+      case "DECIMATIO":
+        if "FORS" not in vtable["#modules"]:
+          raise CentvrionError("Cannot use 'DECIMATIO' without module 'FORS'")
+        if not isinstance(params[0], ValList):
+          raise CentvrionError("DECIMATIO requires an array")
+        arr = list(params[0].value())
+        to_remove = len(arr) // 10
+        for _ in range(to_remove):
+          arr.pop(random.randint(0, len(arr) - 1))
+        return vtable, ValList(arr)
       case "LONGITVDO":
         if isinstance(params[0], (ValList, ValStr)):
           return vtable, ValInt(len(params[0].value()))