Просмотр кода страницы Creating a Main Menu

A [[Menu (project)#Types of Menus|'''Main Menu''']] is a menu, usually used in games, placed at the beginning of a [[project]]. It allows the [[Scratcher|user]] to decide to play the [[Game Projects|game]], or use other features within the [[project]], such as character customization. Main menus mostly consist of various buttons for accessing the different parts of a project. For this tutorial, it is assumed that the majority of the project's body is complete.

== Basic Menu ==
[[Broadcast]]ing is useful for main menus because it allows them to be easily pulled up multiple times in a project. It avoids the need to click the [[Green Flag|green flag]] to navigate back to the menu. The broadcast used in this tutorial is named <code>open menu</code>
In order to start, one will need to replace most "When Green Flag Clicked" script with "When I receive [open menu]" scripts, likely with exceptions. It's recommended to plan for this in advance, and not use "When Green Flag Clicked" hats for the main menu,
For example, one's original script might look like this:
<scratchblocks>
when gf clicked
forever
if <key (left arrow v) pressed?> then
change x by (-10)
end
if <key (right arrow v) pressed?> then
change x by (10)
end
if <key (space v) pressed?> then
jump::custom
end 
</scratchblocks>
But after the modification, it would look like this:
<scratchblocks>
when I receive [start game v]
forever
if <key (left arrow v) pressed?> then
change x by (-10)
end
if <key (right arrow v) pressed?> then
change x by (10)
end
if <key (space v) pressed?> then
jump::custom
end
</scratchblocks>

After this, make a separate backdrop for the title screen that includes the title and a new sprite named "Start Button". Inside this sprite, make two scripts:
<scratchblocks>
when I receive [open menu v]
show
switch backdrop to (title backdrop v)
</scratchblocks>
The "Play" button is used for triggering the project to begin. Most often, when the button is clicked a message will be sent signaling the game to begin. The following script represents this:
<scratchblocks>
when this sprite clicked
broadcast (start game v)
switch backdrop to (gameplay backdrop v)
hide
</scratchblocks>
Now when someone starts the project, it will show the menu instead of starting the game automatically.

== Adding Title Music ==

Title music can be added to the game.

Make the following required [[Variable]]:

<scratchblocks>
(main menu?)
</scratchblocks>

In any [[sprite]], create a script like this one:

{{note|Do this after the menu has been created. Do not convert this into a "start game" script.}}

<scratchblocks>
when gf clicked
set [main menu? v] to (1)
forever
if <(main menu?)>[0]> then
play sound (Title Music v) until done
end </scratchblocks>

This script says that if the viewer is on the main menu, it will play the music.

Now, modify the Start Button script. Change it from this:
<scratchblocks>
when this sprite clicked
broadcast (start game v)
switch backdrop to (gameplay backdrop v)
hide
</scratchblocks>
to this:
<scratchblocks>
when this sprite clicked
broadcast (start game v)
set [main menu? v] to (0)
stop all sounds
switch backdrop to (gameplay backdrop v)
hide
</scratchblocks>

This prevents the title music from playing again, and then just stops it altogether.

== External Links ==

* [[projects:243051|How to Make a Title Screen]] {{-}} A tutorial that teaches how to make a title screen.

[[Category:Scripting Tutorials]]
[[Category:Game Design Tutorials]]