The document describes how to add sound effects and background music to a game created in GameMaker. It explains how to import sound files, assign them to different objects like the player projectile and enemy projectile, and set the player projectile and enemy projectile sounds to play once without repeating. It also explains how to set a background music file to loop continuously and stop when the game ends.

1. Programming soundsinto my game
Player Projectile
FirstI have to openGameMaker.Go to sounds,rightclickand pressCreate sound.
Thisthenopensthe soundpropertieswindow.ThenIhave toclickloadsound.

2. Thisthenopensmydocumentswhere Ican selecta sound.Thenclickopen.
i
I thenclickedonobjectsonthe side tab bar and rightclickedonplayerprojectileandthisopensthe
objectpropertieswindow.

3. Thenclickon movementandsound code underactionwhichopens the eventwindow.Iinputthe
code audio_play_sound(arcade_gun,1,false);.
Enemy projectile
FirstI have to openGameMaker.Go to sounds,rightclickand pressCreate sound.

4. Thisthenopensthe sound propertieswindow.ThenIhave toclickloadsound.
Thisthenopensmydocumentswhere Ican selecta sound.Thenclickopen.

5. I thenclickedonobjectsonthe side tab bar and rightclickedonenemyprojectile andthisopensthe
objectpropertieswindow.
Thenclickon move towardplayercode underactionwhichopensthe eventwindow.Iinputthe
code audio_play_sound(gunshot,1,false);.

6. Background Music
FirstI have to openGameMaker.Go to sounds,rightclickand pressCreate sound.
Thisthenopensthe soundpropertieswindow.ThenIhave toclickloadsound.

7. Thisthenopensmydocumentswhere Ican selecta sound.Thenclickopen.
I thenwentto the objectstaband selectedsystem.Thisopenedthe objectpropertieswindow
where Iclickedonplaymusic.

8. Thenclickon playmusiccode underaction whichopensthe eventwindow.Iinputthe code
audio_play_sound(music,1,true);.
To stop the backgroundmusicrepeatingIclickedontothe stepeventtheninactionsclickedon
destroyed. ThenIaddedthe code audio_stop_all.