Remove breakage exceptions and make (game :x) and (game :y) equivalent to (game :point-x) and (game :point-y)

src/play_clj/core_basics.clj

@@ -101,10 +101,10 @@
     :fps (graphics! :get-frames-per-second)
     :fullscreen? (graphics! :is-fullscreen)
     :touched? (input! :is-touched)
-    :x (throw (Exception. "Replace (game :x) with (input! :get-x)"))
-    :y (throw (Exception. "Replace (game :y) with (input! :get-y)"))
-    :point-x (input! :get-x (or arg 0))
-    :point-y (- (graphics! :get-height) (input! :get-y (or arg 0)))
+    :x (input! :get-x (or arg 0))
+    :y (- (graphics! :get-height) (input! :get-y (or arg 0)))
+    :point-x (game :x arg)
+    :point-y (game :y arg)
     (u/throw-key-not-found k)))
 
 (defmacro key-code

src/play_clj/g2d_physics.clj

@@ -184,8 +184,6 @@ such as :on-begin-contact."
 (defmacro circle-shape
   "Returns a [CircleShape](http://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/physics/box2d/CircleShape.html)."
   [& options]
-  (when (some-> (first options) keyword? not)
-    (throw (Exception. "Replace (circle-shape radius) with (circle-shape :set-radius radius :set-position (vector-2 radius radius))")))
   `(u/calls! ^CircleShape (circle-shape*) ~@options))
 
 (defmacro circle-shape!