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GUESSIT.PAS
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Pascal/Delphi Source File
|
1985-01-20
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2KB
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96 lines
(*
* GUESS IT
* A computer guessing game
*)
program guessit (input,output);
const
maxtrys = 6; (* user allowed 6 tries to guess number *)
maxnum = 100; (* maximum number *)
minnum = 1; (* minimum number *)
var
ch : char; (* used to answer questions *)
guess : integer; (* human's guess *)
number: minnum..maxnum; (* the number itself *)
numtry: 0..maxtrys; (* number od times human has guessed *)
(*
* instructions
* prints out the instructions
*)
procedure instructions;
begin
writeln('This is match it');
writeln;
writeln('I will choose a number between 1 and 100.');
writeln('You will try to guess that number.');
writeln('If you guess wrong, I will tell you if you guessed');
writeln('too high, or too low.');
writeln('you have ',maxtrys,' tries to get the number.');
writeln;
writeln('Enjoy');
writeln;
end; (* instructions *)
(*
* getnum
* get a guess from the human,
* with error checking
*)
procedure getnum;
begin
write('Your guess? ');
(*
* wait for a character
*)
begin
readln(guess);
if guess > maxnum then
begin
writeln('Illegal number');
getnum
end
else
begin
if guess > number then
writeln('too high')
else
if guess < number then
writeln('too low')
else
writeln('correct!!!')
end
end
end; (* getnum *)
(*
* main
*)
begin
instructions;
randomize;
while pos(ch,'nN')=0 do
begin
guess := 0;
numtry := 0;
number := random(maxnum)+1-minnum; (* get number *)
while (numtry < maxtrys) and (guess <> number) do
begin
getnum;
numtry := numtry + 1
end;
writeln;
if guess <> number then
writeln('The number was ',number);
writeln;
write('want to try again? ');
readln(ch)
end
end.