Index: src/Variable.h
==================================================================
--- src/Variable.h
+++ src/Variable.h
@@ -3,18 +3,20 @@
 OF_ASSUME_NONNULL_BEGIN
 
 @interface Variable : Identifier
 @property (readonly, nonatomic) int min, max;
 @property (readonly, nonatomic) int *storage;
-@property (readonly, nonatomic) void (*function)();
+@property (readonly, nonatomic) void (*__cdecl function)();
 @property (readonly, nonatomic) bool persisted;
 
 - (instancetype)initWithName:(OFString *)name OF_UNAVAILABLE;
 - (instancetype)initWithName:(OFString *)name
                          min:(int)min
                          max:(int)max
                      storage:(int *)storage
-                    function:(void (*)())function
+                    function:(void (*__cdecl)())function
                    persisted:(bool)persisted;
+- (void)printValue;
+- (void)setValue:(int)value;
 @end
 
 OF_ASSUME_NONNULL_END

DELETED src/Variable.m
Index: src/Variable.m
==================================================================
--- src/Variable.m
+++ /dev/null
@@ -1,21 +0,0 @@
-#import "Variable.h"
-
-@implementation Variable
-- (instancetype)initWithName:(OFString *)name
-                         min:(int)min
-                         max:(int)max
-                     storage:(int *)storage
-                    function:(void (*)())function
-                   persisted:(bool)persisted
-{
-	self = [super initWithName:name];
-
-	_min = min;
-	_max = max;
-	_storage = storage;
-	_function = function;
-	_persisted = persisted;
-
-	return self;
-}
-@end

ADDED   src/Variable.mm
Index: src/Variable.mm
==================================================================
--- /dev/null
+++ src/Variable.mm
@@ -0,0 +1,57 @@
+#import "Variable.h"
+
+#include "cube.h"
+
+@implementation Variable
+- (instancetype)initWithName:(OFString *)name
+                         min:(int)min
+                         max:(int)max
+                     storage:(int *)storage
+                    function:(void (*__cdecl)())function
+                   persisted:(bool)persisted
+{
+	self = [super initWithName:name];
+
+	_min = min;
+	_max = max;
+	_storage = storage;
+	_function = function;
+	_persisted = persisted;
+
+	return self;
+}
+
+- (void)printValue
+{
+	conoutf(@"%@ = %d", self.name, *_storage);
+}
+
+- (void)setValue:(int)value
+{
+	bool outOfRange = false;
+
+	if (_min > _max) {
+		conoutf(@"variable is read-only");
+		return;
+	}
+
+	if (value < _min) {
+		value = _min;
+		outOfRange = true;
+	}
+
+	if (value > _max) {
+		value = _max;
+		outOfRange = true;
+	}
+
+	if (outOfRange)
+		conoutf(@"valid range for %@ is %d..%d", self.name, _min, _max);
+
+	*_storage = value;
+
+	if (_function != NULL)
+		// call trigger function if available
+		_function();
+}
+@end

Index: src/commands.mm
==================================================================
--- src/commands.mm
+++ src/commands.mm
@@ -241,93 +241,15 @@
 				               isKindOfClass:[Variable
 				                                 class]]) {
 					// game defined variables
 					if (isdown) {
 						if (!w[1][0])
-							// var with no value
-							// just prints its
-							// current value
-							conoutf(@"%s = %d", c,
-							    *[identifier
-							        storage]);
-						else {
-							if ([identifier min] >
-							    [identifier max]) {
-								conoutf(
-								    @"variable "
-								    @"is "
-								    @"read-"
-								    @"only");
-							} else {
-								int i1 =
-								    ATOI(w[1]);
-								if (i1 <
-								        [identifier
-								            min] ||
-								    i1 >
-								        [identifier
-								            max]) {
-									// clamp
-									// to
-									// valid
-									// range
-									i1 =
-									    i1 < [identifier
-									             min]
-									        ? [identifier
-									              min]
-									        : [identifier
-									              max];
-									conoutf(
-									    @"v"
-									    @"a"
-									    @"l"
-									    @"i"
-									    @"d"
-									    @" "
-									    @"r"
-									    @"a"
-									    @"n"
-									    @"g"
-									    @"e"
-									    @" "
-									    @"f"
-									    @"o"
-									    @"r"
-									    @" "
-									    @"%"
-									    @"s"
-									    @" "
-									    @"i"
-									    @"s"
-									    @" "
-									    @"%"
-									    @"d"
-									    @"."
-									    @"."
-									    @"%"
-									    @"d",
-									    c,
-									    [identifier
-									        min],
-									    [identifier
-									        max]);
-								}
-								*[identifier
-								    storage] =
-								    i1;
-							}
-							if ([identifier
-							        function] !=
-							    NULL)
-								// call trigger
-								// function if
-								// available
-								((void(__cdecl
-								        *)())[identifier
-								        function])();
-						}
+							[identifier printValue];
+						else
+							[identifier
+							    setValue:ATOI(
+							                 w[1])];
 					}
 				} else if ([identifier
 				               isKindOfClass:[Alias class]]) {
 					// alias, also used as functions and
 					// (global) variables

Index: src/meson.build
==================================================================
--- src/meson.build
+++ src/meson.build
@@ -7,11 +7,11 @@
     'KeyMapping.m',
     'MD2.mm',
     'MapModelInfo.m',
     'Menu.m',
     'MenuItem.m',
-    'Variable.m',
+    'Variable.mm',
     'client.mm',
     'clientextras.mm',
     'clientgame.mm',
     'clients2c.mm',
     'commands.mm',