* EXCEPTION:
* ERROR:
** method_missing: type
** instance:       -0.8
** on class:       Float
** with modules:   [NumericDeprecated, ValueType, Comparable, Kernel]
** with values:    -0.8
** given args:     [[]]
** exception:      can't define singleton
** backtrace:
app/main.rb:291:in item_pickup?
app/main.rb:835:in tick

** Backtrace:
*** app/main.rb:291:in item_pickup?
*** app/main.rb:835:in tick