8. Sound and Music: Adding Audio to Games

Learning Objectives Use a conditional statement (if/else) to trigger different sounds based on game events. Use a loop with a variable to play a sequence of notes, creating a simple melody. Change a sound's volume dynamically based on a variable, like a character's distance from an object. Explain the difference between a sound trigger and a continuous sound loop. Design a simple audio system where background music and sound effects play on separate channels. Modify a sound's pitch to make it higher or lower in response to game actions. Have you ever noticed in a game how the music gets more intense during a boss battle? 🎮 How do computers know when to change the music? In this lesson, we'll go beyond just playing sounds. You will learn how to use varia...

TermDefinitionExample Sound TriggerA specific event or condition in the game that causes a sound to play. It's the 'cause' for the sound 'effect'.When the player character jumps, it triggers a 'boing' sound. The jump is the trigger. Dynamic AudioSound that changes in real-time based on what is happening in the game. It's not just a pre-recorded track.The sound of footsteps changes from a 'thud' on dirt to a 'splash' when the player walks into water. Audio ChannelAn invisible 'lane' for sound that allows you to play multiple sounds at once without them interrupting each other.Playing background music on Channel 1 and player jump sounds on Channel 2, so the music doesn't stop every time you jump. PitchHow high or low...

Conditional Sound Pattern if [condition is true] then: play sound [A] else: play sound [B] Use this when you want the game to make a choice about which sound to play. For example, play a 'success' sound if the player's answer is correct, or a 'fail' sound if it's wrong. Variable-Controlled Volume Pattern set volume of [sound] to (100 - [distance_variable]) Use this to make sounds more realistic. The volume changes based on a variable. As the 'distance_variable' gets bigger, the volume gets smaller, making the sound seem farther away. Melody Loop Pattern for [note_number] from 1 to 5: play note with pitch ([base_pitch] + [note_number]) Use this pattern to create simple songs or musical runs. The loop plays a series of note...