SRL Archive - OSR Outdated Tutorials

Variables!

Hi welcome to my really small tutorial on variables

What are variables?? Variables are like containers, you can put things in variables (containers).

Lets start by learning how to declare a variable:

Code:
[LEFT]program Variables;

var //this is a global call of variables, which means its not in a procedure or function
//and can be used anywhere in the entire script

Procedure Blah;
begin
end;

begin
end.
[/LEFT]


So thats the word, you use to start declaring the variables,

Most common Types*(thx richie :)):

Integers - These are whole numbers, negative or positive: -1 or 637387
Strings - These are words or letters: HALLELUJAH
Booleans - These are like results, true or false [yes or no]
Extended - These are numbers extended pass the decimal point: 456.33 or 0.222256

So that's what variables can be declared as, the name of the variable can be anything for example"

Code:
[LEFT]Var
smarterchild: integer;
[/LEFT]


When to use variables?

Well variables is an aspect of scripting that will come up a lot, you cannot avoid them totally :p.

Examples of variables:

- Coordinates: x/y are very common as integers to hold coordinates
- Colors: These are integers

Some basic usage of variables:
Code:
[LEFT]program New;
var
s: string; //declares s as a string

begin
s := 'HELLO WORLD'; //assigns 'HELLO WORLD' to the s variable
cleardebug; //clears debug box
Writeln(s); //writes s aka 'HELLO WORLD' into the debug box
end.
[/LEFT]


Code:
[LEFT]program New;
var
x, y: integer;
begin
if FindColor(x, y, 436737, 1, 2360, 80, 2337)then //if it finds the color it does below
MoveMouse(x, y); //moves the mouse to the x/y position
end.
[/LEFT]


Ce:
[LEFT]program New;

var
deci: extended; //deci is an extended value
RoundedNumber: integer; //roundednumber is an integer value
begin
deci := 0.2222; //assigns deci to 0.2222
RoundedNumber := Round(deci); //assigns RoundedNumber to Round(deci) which results as an int
Writeln('Rounded Number: ' + IntToStr(RoundedNumber)); //Writes in rounded number by //converting the RoundedNumb integer value to a string
//THIS EXAMPLE IS A LITTLE HARD, SO IF U DONT UNDERSTAND ITS ALRIGHT
end.
[/LEFT]


Thanks for reading, i hope you now know how to use variables ;).

:).

~~ END ~~

Nicely done! Easy to understand. :)
Some Suggestions:

Most common classes(i think thats what they're called):

"Types", is the word you're looking for.

You should put some code tags in there just too make it easier to look at.
And maybe mention that a string isn't only letters, but characters including "!@##$ abcd 123" ?
You could also explain

IntToStr(RoundedNumber))

a little more, so as to not confuse beginners by jumping into something.

Yah, i used the wrong editor mode, and it screwed up :confused: