Added Director, Player and stubbed Order, mostly working Entity#rotate_towards

lib/entity.rb

@@ -1,6 +1,6 @@
 class IMICRTS
   class Entity
-    attr_reader :position, :angle
+    attr_reader :position, :angle, :radius
     def initialize(manifest: nil, images:, position:, angle:)
       @manifest = manifest
       @images = images
@@ -37,5 +37,23 @@ class IMICRTS
     def draw_gizmos
       Gosu.draw_rect(@position.x - @radius, @position.y - (@radius + 2), @radius * 2, 2, Gosu::Color::GREEN, ZOrder::ENTITY_GIZMOS)
     end
+
+    def rotate_towards(vector)
+      _angle = Gosu.angle(@position.x, @position.y, vector.x, vector.y)
+      a = (360 + (_angle - @angle)) % 360
+
+      # Fails if vector is directly behind entity
+      if @angle.between?(_angle - 3, _angle + 3)
+        @angle = _angle
+      elsif a < 180
+        @angle -= 1
+      else
+        @angle += 1
+      end
+
+      @angle %= 360
+
+      pp [a, _angle, @angle]
+    end
   end
 end