add nested menus

Author: mstop4

current-scripts/Demos/useful-scripts/objects/obj_column_menu/CleanUp_0.gml

@@ -1,7 +1,10 @@
-for (var i=0; i<num_items; i++) {
-	items[| i].destroy();
-	delete items[| i];
-}
+if (ds_exists(items, ds_type_list)) {
+	for (var i=0; i<num_items; i++) {
+		items[| i].destroy();
+		delete items[| i];
+	}
 
-ds_list_destroy(items);
+	ds_list_destroy(items);
+}
+
 delete control_state;

current-scripts/Demos/useful-scripts/objects/obj_column_menu/Draw_0.gml

@@ -26,4 +26,6 @@ for (var i=0; i<num_items; i++) {
 	}
 }
 
-draw_sprite(cursor_spr, 0, x, y + (item_height + line_spacing) * pos + item_height / 2);
+if (enabled) {
+	draw_sprite(cursor_spr, 0, x, y + (item_height + line_spacing) * pos + item_height / 2);
+}

current-scripts/Demos/useful-scripts/objects/obj_column_menu/obj_column_menu.yy

@@ -1,4 +1,4 @@
-menu = instance_create_layer(32, 32, layer, obj_column_menu);
+menu = instance_create_layer(32, 64, layer, obj_column_menu);
 menu.column_menu_init({
 	font: fnt_demo,
 	cursor_spr: spr_arrow, 

current-scripts/Demos/useful-scripts/objects/obj_column_menu_demo/Create_0.gml

@@ -0,0 +1,5 @@
+draw_set_font(fnt_title);
+draw_set_valign(fa_top);
+draw_set_halign(fa_center);
+draw_set_colour(c_white);
+draw_text(room_width/2, 16, "Column Menu Demo");

current-scripts/Demos/useful-scripts/objects/obj_column_menu_demo/Draw_0.gml

@@ -9,6 +9,7 @@ rooms = [
 	room_math_demo,
 	room_column_menu_demo,
 	room_grid_menu_demo,
+	room_nested_menu_demo,
 	room_strings_demo,
 	room_web_demo
 ];
@@ -25,6 +26,7 @@ room_names = [
 	"Math",
 	"Column Menu",
 	"Grid Menu",
+	"Nested Menu",
 	"Strings",
 	"Web"
 ];
@@ -37,7 +39,7 @@ menu.column_menu_init({
 	cursor_change_sfx: -1,
 	cursor_confirm_sfx: -1,
 });
-menu.line_spacing = 16;
+menu.line_spacing = 8;
 
 for (var i=0; i<num_rooms; i++) {
 	menu.column_menu_add_selectable({

current-scripts/Demos/useful-scripts/objects/obj_column_menu_demo/obj_column_menu_demo.yy

@@ -1,10 +1,13 @@
-for (var i=0; i<ds_grid_width(items); i++) {
-	for (var j=0; j<ds_grid_height(items); j++) {
-		if (!is_struct(items[# i, j])) continue;
-		items[# i, j].destroy();
-		delete items[# i, j];
+if (ds_exists(items, ds_type_grid)) {
+	for (var i=0; i<ds_grid_width(items); i++) {
+		for (var j=0; j<ds_grid_height(items); j++) {
+			if (!is_struct(items[# i, j])) continue;
+			items[# i, j].destroy();
+			delete items[# i, j];
+		}
 	}
-}
 
-ds_grid_destroy(items);
+	ds_grid_destroy(items);
+}
+
 delete control_state;

current-scripts/Demos/useful-scripts/objects/obj_demo_title/Create_0.gml

@@ -30,7 +30,9 @@ for (var i=0; i<ds_grid_width(items); i++) {
 	}
 }
 
-draw_sprite(cursor_spr, 0,
-	x + (cursor_padding + column_width) * pos.x,
-	y + (item_height + line_spacing) * pos.y + item_height / 2
-);
+if (enabled) {
+	draw_sprite(cursor_spr, 0,
+		x + (cursor_padding + column_width) * pos.x,
+		y + (item_height + line_spacing) * pos.y + item_height / 2
+	);
+}