Type - Revision history

Sandman at 14:25, 19 May 2008

Sandman — Mon, 19 May 2008 14:25:27 GMT

←Older revision		Revision as of 14:25, 19 May 2008
Line 13:		Line 13:
	While it's a convention to use a '_' as first character in the name of a datatype, it's not mandatory.		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.	+	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 ===
Line 42:		Line 42:
	setName(myFile,"pagefile");		setName(myFile,"pagefile");
	say("1: " + myFile.path + myFile.name);		say("1: " + myFile.path + myFile.name);
		+
		+	setName2(&myFile2,"pagefile");
		+	say("2: " + myFile2.path + myFile2.name);

	Repeat		Repeat
Line 52:		Line 55:
	Begin		Begin
	f.name = name;		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		End
	</pre>		</pre>
-	Used in example: [[say]](), [[key]]()	+	Used in example: [[say]](), [[key]](), [[Pointer]]

	This will result in something like:<br>		This will result in something like:<br>
	{{Image		{{Image
	\| image = Type3.PNG		\| image = Type3.PNG
-	\| caption = ~~setName() overwrites f.name, which is also myFile.name~~	+	\| caption = Type results
	}}		}}

Sandman at 14:12, 1 March 2008

Sandman — Sat, 01 Mar 2008 14:12:35 GMT

←Older revision		Revision as of 14:12, 1 March 2008
Line 105:		Line 105:
	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>		This will result in something like:<br>
Line 152:		Line 152:
	End		End
	</pre>		</pre>
-	Used in example: [[write]](), [[key]]()	+	Used in example: [[get_id]](), [[write]](), [[key]]()

	This will result in something like:<br>		This will result in something like:<br>

Sandman at 14:09, 1 March 2008

Sandman — Sat, 01 Mar 2008 14:09:53 GMT

←Older revision		Revision as of 14:09, 1 March 2008
Line 53:		Line 53:
	f.name = name;		f.name = name;
	End		End
-
	</pre>		</pre>
		+	Used in example: [[say]](), [[key]]()
		+
		+	This will result in something like:<br>
		+	{{Image
		+	\| image = Type3.PNG
		+	\| caption = setName() overwrites f.name, which is also myFile.name
		+	}}
		+

	A point with x and y.		A point with x and y.

Sandman: /* Definition */

Sandman — Sat, 01 Mar 2008 10:45:50 GMT

Definition

←Older revision		Revision as of 10:45, 1 March 2008
Line 13:		Line 13:
	While it's a convention to use a '_' as first character in the name of a datatype, it's not mandatory.		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, 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.	+	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.

	=== Example ===		=== Example ===

Sandman at 10:44, 1 March 2008

Sandman — Sat, 01 Mar 2008 10:44:51 GMT

←Older revision		Revision as of 10:44, 1 March 2008
Line 9:		Line 9:
	'''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, 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.

	=== Example ===		=== Example ===

-	A file with name and path.	+	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>
	Type _file		Type _file
Line 23:		Line 28:
	Private		Private
	_file myFile;		_file myFile;
		+	_file myFile2;
	Begin		Begin

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

	Repeat		Repeat
Line 34:		Line 48:

	End		End
		+
		+	Function setName(_file f, string name)
		+	Begin
		+	f.name = name;
		+	End
		+
	</pre>		</pre>

Sandman: /* Example */

Sandman — Sat, 01 Mar 2008 09:27:31 GMT

Example

←Older revision		Revision as of 09:27, 1 March 2008
Line 12:		Line 12:

	=== Example ===		=== Example ===
		+
		+	A file with name and path.
	<pre>		<pre>
-	~~Program example~~;	+	Type _file
		+	String path;
		+	String name;
		+	End

		+	Process Main()
		+	Private
		+	_file myFile;
		+	Begin
		+
		+	myFile.path = "C:\";
		+	myFile.name = "autoexec.bat";
		+	say(myFile.path + myFile.name);
		+
		+	Repeat
		+	frame;
		+	Until(key(_ESC))
		+
		+	End
		+	</pre>
		+
		+	A point with x and y.
		+	<pre>
	// Declare the type _point		// Declare the type _point
	Type _point		Type _point
Line 26:		Line 49:
	End		End

		+	Process Main()
	Private		Private
	_point p1,p2;		_point p1,p2;

Sandman at 12:51, 14 November 2007

Sandman — Wed, 14 Nov 2007 12:51:56 GMT

←Older revision		Revision as of 12:51, 14 November 2007
Line 55:		Line 55:
	</pre>		</pre>
	Used in example: [[write]](), [[key]](), [[draw_line]]()		Used in example: [[write]](), [[key]](), [[draw_line]]()
		+
		+	This will result in something like:<br>
		+	{{Image
		+	\| image = Type.PNG
		+	\| caption = A line and its distance
		+	}}

	== ProcessType ==		== ProcessType ==
Line 96:		Line 102:
	</pre>		</pre>
	Used in example: [[write]](), [[key]]()		Used in example: [[write]](), [[key]]()
		+
		+	This will result in something like:<br>
		+	{{Image
		+	\| image = Type2.PNG
		+	\| caption = A list of active proc's
		+	}}

Sandman: /* Example */

Sandman — Wed, 14 Nov 2007 12:45:04 GMT

Example

←Older revision		Revision as of 12:45, 14 November 2007
Line 11:		Line 11:
	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 it it were a [[struct]], so the declared variables are members of the struct.

-	== Example ==	+	=== Example ===
	<pre>		<pre>
	Program example;		Program example;

Sandman at 12:44, 14 November 2007

Sandman — Wed, 14 Nov 2007 12:44:52 GMT

←Older revision		Revision as of 12:44, 14 November 2007
Line 1:		Line 1:
-	~~#REDIRECT~~ [[~~Operators~~]]	+	[[category:language]]
		+	[[category:operator]]
		+
		+	== Datatype declaration ==
		+
		+	=== Definition ===
		+	'''Type''' <name>
		+	:<variables>
		+	'''End'''
		+
		+	Creates a new [[datatype]]. It's handled as it it were a [[struct]], so the declared variables are members of the struct.
		+
		+	== Example ==
		+	<pre>
		+	Program example;
		+
		+	// 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
		+
		+	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
		+	</pre>
		+	Used in example: [[write]](), [[key]](), [[draw_line]]()
		+
		+	== ProcessType ==
		+
		+	=== Definition ===
		+	'''Type''' <processname>
		+
		+	Acquires the [[processTypeID]] of a [[processType]] or [[function]]. This can be useful for example with the functions [[get_id]]() and [[signal]]().
		+
		+	=== Example ===
		+	<pre>
		+	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
		+	</pre>
		+	Used in example: [[write]](), [[key]]()

Sandman at 22:23, 29 May 2007

Sandman — Tue, 29 May 2007 22:23:10 GMT

New page

#REDIRECT [[Operators]]