chore: use :math library from erlang

lambdaclass · Dec 18, 2024 · de29c4a · de29c4a
1 parent 042a833
commit de29c4a
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/apps/bot_manager/lib/math/vector.ex b/apps/bot_manager/lib/math/vector.ex
@@ -33,9 +33,9 @@ defmodule BotManager.Math.Vector do
 
   # Using the rotation matrix
   def rotate_by_degrees(%{x: x, y: y}, angle_in_degrees) do
-    angle_in_radians = Math.deg2rad(angle_in_degrees)
-    x = x * Math.cos(angle_in_radians) - y * Math.sin(angle_in_radians)
-    y = x * Math.sin(angle_in_radians) + y * Math.cos(angle_in_radians)
+    angle_in_radians = deg2rad(angle_in_degrees)
+    x = x * :math.cos(angle_in_radians) - y * :math.sin(angle_in_radians)
+    y = x * :math.sin(angle_in_radians) + y * :math.cos(angle_in_radians)
 
     %{
       x: x,
@@ -51,4 +51,9 @@ defmodule BotManager.Math.Vector do
       y: y / distance
     }
   end
+
+
+  def deg2rad(deg) do
+    deg * :math.pi / 180
+  end
 end