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docs/en/reference/CLASS.md

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+# CLASS
+
+A class definition. The definition file has the `.class` extension and uses syntax similar to `.CNV` files. Instances (`INSTANCE`) are created from a class definition with [`NEW`](#new) and removed with [`DELETE`](#delete).
+
+## Fields
+
+### DEF
+
+```
+STRING DEF
+```
+
+Path to the class definition file. If the path does not start with `$`, it is prefixed with `$COMMON/classes/`.
+
+### BASE
+
+```
+STRING BASE
+```
+
+The base class for inheritance. In the current emulator implementation the field is read but not used.
+
+## Methods
+
+### NEW
+
+```
+mixed NEW(STRING varName, [mixed param1, ..., mixed paramN])
+```
+
+Creates a new instance of the class with the name `varName`. The new variable is registered in the context where the class is declared (not in the caller's context) — the instance therefore survives scene changes when the class is declared at the application level.
+
+After the instance is created, if the class definition file contains a procedure called `CONSTRUCTOR`, it is invoked with the arguments passed to `NEW` (with `varName` as `$1`).
+
+**Parameters**
+
+- `varName` — name of the new instance variable.
+- `param1, …, paramN` — (optional) arguments forwarded to the `CONSTRUCTOR` procedure.
+
+**Returns**: the value returned by `CONSTRUCTOR` or `NULL`.
+
+**Examples**
+
+```
+MM^NEW("G_MENU");
+CLSLOGOBJ^NEW("LOG", FALSE);
+CLSEIFELENEMYOBJ^NEW("ENEMY0", "1_ENEMY0.ANN", 2, 5, 16, 4, 0, 2, 18);
+CLSBDENEMYOBJ^NEW(["BDENEMY"+I2], _I_, I1, I2, IBDKRAINA);
+```
+
+### DELETE
+
+```
+mixed DELETE(STRING varName, [mixed param1, ..., mixed paramN])
+```
+
+Deletes the instance named `varName`. If the class definition contains a procedure called `DESTRUCTOR`, it is invoked with the arguments passed to `DELETE` (with `varName` as `$1`) before the variable is removed from its context.
+
+**Parameters**
+
+- `varName` — name of the instance to delete.
+- `param1, …, paramN` — (optional) arguments forwarded to the `DESTRUCTOR` procedure.
+
+**Returns**: the value returned by `DESTRUCTOR` or `NULL`.
+
+## Signals
+
+### ONINIT
+
+Fired when the class variable is initialised.