USING: accessors arrays fry kernel math math.vectors sequences
math.intervals
multi-methods
+ combinators.short-circuit
combinators.cleave.enhanced
multi-method-syntax ;
cond
2array ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+GENERIC: within? ( a b -- ? )
+
+METHOD: within? ( <pos> <rectangle> -- ? )
+ {
+ [ left to-the-right-of? ]
+ [ right to-the-left-of? ]
+ [ bottom above? ]
+ [ top below? ]
+ }
+ 2&& ;