3D Game Programming All in One

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3D Game Programming All in One

• By Kenneth C. Finney

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Chapter 20Game Sound and Music

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Game Sound and Music

• World sounds (3D sounds)
• Server generated
• Dynamically triggered sounds
• Walking, weapons, collisions
• Client-only sounds
• Personal noises
• Breathing, pain
• Communications
• Radio

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Game Sound and Music

• Footsteps
• Can be animation triggered
• (was not in book at press time, is now available
  for Milkshape)
• Also can be direct message triggered
• Client decides to activate, tells server to play
  sound effect and manage timing so all can hear

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Game Sound and Music

• Footsteps
• Need a footstep sound, audio descriptor, and
  profile
• Need to link messaging to movement key handler
• Pressing move key tells server to start playing
  sound
• Releasing move key tells server to stop

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Game Sound and Music

• Lab 1 Making Footsteps
• Practice recording sound effect
• Practice creating an audio descriptor and profile
• Exposure to movement handler

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Game Sound and Music

• Lab 2 Making Utterances
• Practice recording sound effect
• Practice creating an audio descriptor and profile
• Exposure to key binding code
• Exposure to random number generation

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Game Sound and Music

• Weapon Sounds
• Require a complete weapon definition to use a
  weapon sound correctly
• State machine controls sound
• States include preactivate, activate, ready, no
  ammo, fire, reload, finished reloading, dry
  fire, wait trigger release

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Game Sound and Music

• Lab 3 Creating Weapon Sounds
• Practice recording sounds
• Practice creating an audio descriptor and profile
• Exposure to weapon state machine code
• Learn how to place weapons in game world

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Game Sound and Music

• Vehicle Sounds
• Idle, acceleration, wheel impact, wheel squeal,
  soft crash, hard crash
• Audio profiles are needed
• Vehicle datablock points to profiles

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Game Sound and Music

• Lab 4 Making Vehicle Sounds
• Practice recording sounds
• Practice creating audio profiles
• Exposure to vehicle datablock
• Practice placing vehicles in a game world

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Game Sound and Music

• Environmental Sounds
• Need a profile for each sound
• Create audio emitters that point to audio
  profiles
• Torque has built-in Audio Emitter tools
• Sounds must record as monophonic sounds to be
  used as 3D sounds in-game

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Game Sound and Music

• Lab 5 Environmental Sounds
• Learn how to create audio emitters using the
  World Editor Creator
• Use the World Editor Inspector to adjust audio
  emitter parameters

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Game Sound and Music

• Interface Sounds
• GuiDefaultProfile objects can emit sounds
  triggered by the mouse
• soundButtonDown triggers a sound when the mouse
  button is pressed
• soundButtonOver triggers a sound when the mouse
  cursor passes over the object

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Game Sound and Music

• Music
• Treat it exactly the same as sound effects
• Descriptors and profiles are needed
• Music can be started, stopped, and monitored

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Game Sound and Music

• Lab 6 Create Start-up Music
• Practice creating emitters
• Learn how to judge where in code to place music
  controls
• Exposure to simple music control functions

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Summary

• Sounds can be played with direct commands,
  triggered, or scheduled
• Weapons have a state machine which controls their
  sounds
• 3D Sound Emitter objects can be placed at
  locations in a game world
• 3D sounds must be monophonic
• Music is handled exactly the same way as sound
  effects