70 lines
1.8 KiB
Factor
70 lines
1.8 KiB
Factor
USING: help.markup help.syntax math kernel ;
|
|
IN: 24-game
|
|
|
|
HELP: play-game ( -- )
|
|
{ $description "Starts the game!" }
|
|
{ $examples
|
|
{ $unchecked-example
|
|
"USE: 24-game"
|
|
"play-game"
|
|
"{ 8 2 1 2 }\n"
|
|
"Commands: { + - * / rot swap q }\n"
|
|
"swap\n"
|
|
"{ 8 2 2 1 }\n"
|
|
"Commands: { + - * / rot swap q }\n"
|
|
"-\n"
|
|
"{ 8 2 1 }\n"
|
|
"Commands: { + - * / rot swap q }\n"
|
|
"+\n"
|
|
"{ 8 3 }\n"
|
|
"Commands: { + - * / swap q }\n"
|
|
"*\n"
|
|
"You WON!"
|
|
}
|
|
} ;
|
|
|
|
HELP: 24-able ( -- vector )
|
|
{ $values { "vector" "vector of 4 integers" } }
|
|
{ $description
|
|
"Produces a vector with 4 integers. With the following condition: "
|
|
"If these integers were directly on the stack, one can process them into 24, "
|
|
"just using the provided commands and the 4 numbers. The Following are the "
|
|
"provided commands: "
|
|
{ $link + } ", " { $link - } ", " { $link * } ", "
|
|
{ $link / } ", " { $link swap } ", and " { $link rot } "."
|
|
}
|
|
{ $examples
|
|
{ $example
|
|
"USING: 24-game kernel sequences prettyprint ;"
|
|
"24-able length 4 = ."
|
|
"t"
|
|
}
|
|
{ $notes { $link 24-able? } " is used in " { $link 24-able } "." }
|
|
} ;
|
|
|
|
HELP: 24-able? ( quad -- t/f )
|
|
{ $values
|
|
{ "quad" "vector of 4 integers" }
|
|
{ "t/f" "a boolean" }
|
|
}
|
|
{ $description
|
|
"Tells if it is possible to win 24-game if it was initiated "
|
|
"with this sequence."
|
|
} ;
|
|
|
|
HELP: build-quad ( -- array )
|
|
{ $values
|
|
{ "array" "an array of 4 numbers" }
|
|
}
|
|
{ $description "Builds an array of 4 random numbers." } ;
|
|
ARTICLE: "24-game" "The Game of 24"
|
|
"A classic math game, where one attempts to create 24, by applying "
|
|
"arithmetical operations and some shuffle words to a stack of 4 numbers. "
|
|
{ $subsections
|
|
play-game
|
|
24-able
|
|
24-able?
|
|
build-quad
|
|
} ;
|
|
ABOUT: "24-game"
|