1 files changed, 25 insertions, 0 deletions
diff --git a/src/distractionless/arithmetic_tasks.cljd b/src/distractionless/arithmetic_tasks.cljd
new file mode 100644
index 0000000..e7357d9
--- /dev/null
+++ b/src/distractionless/arithmetic_tasks.cljd
@@ -0,0 +1,25 @@
+(ns distractionless.arithmetic-tasks)
+
+(def ^:private task-types [:addition :subtraction :multiplication])
+
+(defn gen-task []
+  {:type (rand-nth task-types)
+   :numbers [(inc (rand-int 20)) (inc (rand-int 20))]})
+
+(defn- type->function [type]
+  (condp = type
+    :addition +
+    :subtraction -
+    :multiplication *))
+
+(defn type->str [type]
+  (condp = type
+    :addition "+"
+    :subtraction "-"
+    :multiplication "*"))
+
+(defn test-result? [task input]
+  (= input
+     ((type->function (:type task))
+      (first (:numbers task))
+      (second (:numbers task)))))