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	'''End'''		'''End'''
-	Creates a new [[datatype]]. It's handled as it it were a [[struct]], so the declared variables are members of the struct.	+	Creates a new [[datatype]]. It's handled as if it were a [[struct]], so the declared variables are members of the struct.
		+
		+	While it's a convention to use a '_' as first character in the name of a datatype, it's not mandatory.
		+
		+	When used as an [[argument]] in a [[function]] or [[process]], the [[parameter]] is not a copy, but the variable itself, as shown in the first example, and any change made to the parameter is also changed in the argument. It's more elegant to use a [[pointer]] though, as it also displayed.
	=== Example ===		=== Example ===
		+
		+	A file with name and path. Note that the assignment <code>myFile2 = myFile;</code> makes a copy of ''myFile'' and throws it into ''myFile2'', which is normal. But when it's used as an argument in a function, the parameter is not a copy but the _file itself.
		+
	<pre>		<pre>
-	Program example;	+	Type _file
		+	String path;
		+	String name;
		+	End
		+	Process Main()
		+	Private
		+	_file myFile;
		+	_file myFile2;
		+	Begin
		+
		+	myFile.path = "C:\";
		+	myFile.name = "autoexec.bat";
		+	say("1: " + myFile.path + myFile.name);
		+
		+	myFile2 = myFile;
		+	myFile2.name = "config";
		+	say("1: " + myFile.path + myFile.name);
		+	say("2: " + myFile2.path + myFile2.name);
		+
		+	setName(myFile,"pagefile");
		+	say("1: " + myFile.path + myFile.name);
		+
		+	setName2(&myFile2,"pagefile");
		+	say("2: " + myFile2.path + myFile2.name);
		+
		+	Repeat
		+	frame;
		+	Until(key(_ESC))
		+
		+	End
		+
		+	Function setName(_file f, string name)
		+	Begin
		+	f.name = name;
		+	End
		+
		+	Function setName2(_file* f, string name)
		+	Begin
		+	f.name = name; // this is actually (*f).name = name, but . can be used like this
		+	End
		+	</pre>
		+	Used in example: [[say]](), [[key]](), [[Pointer]]
		+
		+	This will result in something like:<br>
		+	{{Image
		+	| image = Type3.PNG
		+	| caption = Type results
		+	}}
		+
		+
		+	A point with x and y.
		+	<pre>
	// Declare the type _point		// Declare the type _point
	Type _point		Type _point
Line 26:		Line 84:
	End		End
		+	Process Main()
	Private		Private
	_point p1,p2;		_point p1,p2;
Line 54:		Line 113:
	End		End
	</pre>		</pre>
-	Used in example: [[write]](), [[key]](), [[draw_line]]()	+	Used in example: [[write]](), [[key]](), [[sqrt]](), [[draw_line]]()
		+
		+	This will result in something like:<br>
		+	{{Image
		+	| image = Type.PNG
		+	| caption = A line and its distance
		+	}}
	== ProcessType ==		== ProcessType ==
Line 95:		Line 160:
	End		End
	</pre>		</pre>
-	Used in example: [[write]](), [[key]]()	+	Used in example: [[get_id]](), [[write]](), [[key]]()
		+
		+	This will result in something like:<br>
		+	{{Image
		+	| image = Type2.PNG
		+	| caption = A list of active proc's
		+	}}

---

Current revision

Contents 1 Datatype declaration 1.1 Definition 1.2 Example 2 ProcessType 2.1 Definition 2.2 Example

[edit] Datatype declaration

[edit] Definition

Type <name>

<variables>

End

Creates a new datatype. It's handled as if it were a struct, so the declared variables are members of the struct.

While it's a convention to use a '_' as first character in the name of a datatype, it's not mandatory.

When used as an argument in a function or process, the parameter is not a copy, but the variable itself, as shown in the first example, and any change made to the parameter is also changed in the argument. It's more elegant to use a pointer though, as it also displayed.

[edit] Example

A file with name and path. Note that the assignment myFile2 = myFile; makes a copy of myFile and throws it into myFile2, which is normal. But when it's used as an argument in a function, the parameter is not a copy but the _file itself.

Type _file
    String path;
    String name;
End

Process Main()
Private
    _file myFile;
    _file myFile2;
Begin

    myFile.path = "C:\";
    myFile.name = "autoexec.bat";
    say("1: " + myFile.path + myFile.name);

    myFile2 = myFile;
    myFile2.name = "config";
    say("1: " + myFile.path + myFile.name);
    say("2: " + myFile2.path + myFile2.name);

    setName(myFile,"pagefile");
    say("1: " + myFile.path + myFile.name);

    setName2(&myFile2,"pagefile");
    say("2: " + myFile2.path + myFile2.name);

    Repeat
        frame;
    Until(key(_ESC))

End

Function setName(_file f, string name)
Begin
    f.name = name;
End

Function setName2(_file* f, string name)
Begin
    f.name = name; // this is actually (*f).name = name, but . can be used like this
End

Used in example: say(), key(), Pointer

This will result in something like:

Type results

A point with x and y.

// Declare the type _point
Type _point
    float x;
    float y;
End

// Declare the function distance(), because the function returns a datatype
// other than int, so it needs to be declared before usage.
Declare float distance(_point a,_point b)
End

Process Main()
Private
    _point p1,p2;
Begin

    p1.x = 15.3;
    p1.y = 34.9;
    p2.x = 165.4;
    p2.y = 137.2;

    write(0,0,0,0,"Distance: " + distance(p1,p2));
    drw_line(p1,p2);

    Repeat
        frame;
    Until(key(_ESC))

End

Function float distance(_point a, _point b)
Begin
    return sqrt( (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) );
End

Function int drw_line(_point a, _point b)
Begin
    return draw_line( a.x , a.y , b.x , b.y );
End

Used in example: write(), key(), sqrt(), draw_line()

This will result in something like:

A line and its distance

[edit] ProcessType

[edit] Definition

Type <processname>

Acquires the processTypeID of a processType or function. This can be useful for example with the functions get_id() and signal().

[edit] Example

Program example;
Private
    proc proc_id; //int could be used too
Begin

    // Start 2 proc's
    proc();
    proc();
    proc();

    // Display all alive proc's
    y = 0;
    while( (proc_id=get_id(type proc)) )
        write(0,0,(y++)*10,0,"proc: " + proc_id);
    end

    // Wait for key ESC
    Repeat
        frame;
    Until(key(_ESC))

End

Process proc()
Begin
    Loop
        frame;
    End
End

Used in example: get_id(), write(), key()

This will result in something like:

A list of active proc's