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| -rw-r--r-- | inform7.html.markdown | 51 |
1 files changed, 25 insertions, 26 deletions
diff --git a/inform7.html.markdown b/inform7.html.markdown index 7f1da0e0..53880d4c 100644 --- a/inform7.html.markdown +++ b/inform7.html.markdown @@ -4,20 +4,19 @@ contributors: - ["Hyphz", "http://github.com/hyphz/"] filename: LearnInform.Inform --- -Inform 7 is a natural language based language created by Graham Nelson and Emily Short for writing text adventures, but also potentially usable for other text based applications, especially data backed ones. -``` -"LearnInform" by Hyphz +Inform 7 is a natural language based language created by Graham Nelson and Emily Short for writing text adventures, but also potentially usable for other text based applications, especially data backed ones. +```inform7 [This is a comment.] [Inform 7 is a language designed for building text adventures. -It can be used for other purposes too, although the default +It can be used for other purposes too, although the default library builds a text adventure. Inform 7 is object oriented.] [This creates a class by subclassing. "Value" is the universal subclass, but "object" is the most basic that behaves like an OO object.] -A datablock is a kind of object. +A datablock is a kind of object. [Classes can have properties.] A datablock can be broken. [This creates a boolean property.] @@ -36,18 +35,18 @@ The name of Block1 is "Block One." [Functions and procedures are defined as "phrases".] To do the thing everyone does with their first program: say "Hello World.". [Full stop indicates the end, indent indicates the scope.] - + To dump (the block - a datablock): [That's how we create a parameter.] say the sequence number of the block; say the name of the block; if the block is broken, say "(Broken)". - + To toggle (the block - a datablock): if the block is broken: [Conditional.] now the block is not broken; [Updating a property.] else: now the block is broken. - + [Multiple parameters.] To fix (the broken block - a datablock) using (the repair block - a datablock): if the broken block is not broken, stop; [Comma for a non indented single command.] @@ -56,8 +55,8 @@ To fix (the broken block - a datablock) using (the repair block - a datablock): now the broken block is not broken. [Because of its text adventure origins, Inform 7 doesn't generally allow objects -to be created dynamically, although there's a language extension that enables it.] -Block2 is a datablock. +to be created dynamically, although there's a language extension that enables it.] +Block2 is a datablock. Block2 is broken. The sequence number of Block2 is 2. The name of Block2 is "Block two." @@ -66,8 +65,8 @@ To demonstrate calling a phrase with two parameters: Let the second block be block2; [Local pointer variable.] fix the second block using Block1; say the sequence number of the second block. [1.] - -[Lists.] + +[Lists.] To show how to use list types: let the list be a list of datablocks; add Block1 to the list; @@ -84,7 +83,7 @@ To show how to use list types: dump X; ["1 Block two."] remove X from the list; say the list. [Block1] - + [Here's how we define a function and do arithmetic.] To decide which number is the sum of all numbers up to (X - a number) (this is summing up): @@ -92,7 +91,7 @@ To decide which number is the sum of all numbers up to (X - a number) (this is s repeat with the current number running from 1 to X: now the total so far is the total so far + the current number; decide on the total so far. [This is the return statement.] - + [ We have higher order functions too. ] To demonstrate a higher order function: @@ -102,7 +101,7 @@ To decide which number is the result of applying (phrase - phrase A -> A) twice let b1 be phrase applied to B; let b2 be phrase applied to b1; decide on b2. - + To demonstrate defining a higher order function: let X be 5; say the result of applying summing up twice to X. @@ -112,14 +111,14 @@ To demonstrate defining a higher order function: Datablock validation rules is a datablock based rulebook. A datablock validation rule for a broken datablock: rule fails. -A datablock validation rule for a datablock (called the block): +A datablock validation rule for a datablock (called the block): dump the block; rule succeeds. - + To demonstrate invoking a rulebook: follow datablock validation rules for Block1; follow datablock validation rules for Block2. - + [ Objects can also have relations, which resemble those in a relational database. ] A dog is a kind of thing. Rover is a dog. @@ -136,7 +135,7 @@ Friendship relates various people to various people. [Many-to-many.] The verb to own means the property ownership relation. The verb to be the guide dog of means the guide dog ownership relation. -The verb to be guided by means the reversed guide dog ownership relation. +The verb to be guided by means the reversed guide dog ownership relation. The verb to be friends with means the friendship relation. Edward is a person. A person can be blind. Edward is blind. @@ -156,18 +155,18 @@ The verb to be helpful to means the helpfulness relation. To demonstrate using a procedural relation: repeat with the helper running through people that are helpful to Edward: say the helper. - + [ Interface to the text adventure harness to allow the above code to be run. ] -Tutorial room is a room. +Tutorial room is a room. "A rather strange room full of buttons. Push them to run the exercises, or turn on the robot to run them all." -A button is a kind of thing. A button is fixed in place. +A button is a kind of thing. A button is fixed in place. -The red button is a button in tutorial room. +The red button is a button in tutorial room. Instead of pushing the red button, do the thing everyone does with their first program. -The green button is a button in tutorial room. +The green button is a button in tutorial room. Instead of pushing the green button, demonstrate calling a phrase with two parameters. -The blue button is a button in tutorial room. +The blue button is a button in tutorial room. Instead of pushing the blue button, show how to use list types. The cyan button is a button in tutorial room. Instead of pushing the cyan button, say the sum of all numbers up to 5. @@ -190,6 +189,6 @@ Instead of switching on the robot: try pushing button. ``` -##Ready For More? +## Ready For More? * [Inform 7](http://www.inform7.com/) |