Difference between revisions of "Constructor"
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var temp: TNewMapObject; | var temp: TNewMapObject; | ||
begin | begin | ||
− | temp := TNewMapObject.Create; | + | temp := TNewMapObject.Create; // constructor |
temp.X := posx; | temp.X := posx; | ||
temp.Y := posy; | temp.Y := posy; | ||
temp.Style := 16; | temp.Style := 16; | ||
Map.AddObject(temp); // we could also save object's ID (newly spawned medkit)\ | Map.AddObject(temp); // we could also save object's ID (newly spawned medkit)\ | ||
− | temp.Free; // IMPORTANT! | + | temp.Free; // IMPORTANT! destructor |
end; | end; | ||
Revision as of 15:44, 12 August 2013
Description
Constructors are used to allocate memory for a new object/class/variable etc.
It's important to remember to free previously allocated memory by using Destructors
Usage
There are some user constructable classes in Script Core 3, for example TNewPlayer and TNewMapObject.
Below example shows the usage of TNewMapObject.Create, which is this classes constructor.
procedure SpawnMedkit(posx,posy: single);
var temp: TNewMapObject;
begin
temp := TNewMapObject.Create; // constructor
temp.X := posx;
temp.Y := posy;
temp.Style := 16;
Map.AddObject(temp); // we could also save object's ID (newly spawned medkit)\
temp.Free; // IMPORTANT! destructor
end;
procedure MyOnSpeak(p: TActivePlayer; Text: string);
begin
if lowercase(Text) = 'Medic!' then
SpawnMedkit(p.X,p.Y);
end;