Hard Drivin's Airborne

Hard Drivin's Airborne
Developer: Atari Games Platform: Arcade (Atari Hard Drivin' hardware) This game has debugging material. This game has revisional differences.

This game was never completed and/or given a public release. As a result of this, keep in mind that the developers might have used or deleted some of the content featured here, had the game actually been released.

A realistic driving simulator, but this time your car has wings.

Debug Controls

MAME supports two known revisions of this game, both dated 1993. The later revision has quite a few debugging features implemented that the earlier version does not.

• 

  The volume calibration screen.

• 

  The 3D object viewer.

• 

  The world state screen.

World State

Holding down P1 Button 6 while driving will bring up a real-time display of the world state.

Name	Description
RPY	The rotation angles of the player's car.
POS	The position of the player's car.
FLAGS	Flags that are set on the player, meaning is unknown.
SECTOR	The map sector the player is currently in.
FRAME COUNT	The frames-per-second counter. The renderer seems to target 15 FPS.
CURSECT	Seems to have something to do with the type of ground the player's car is on.
LASTCP	The ID of the last checkpoint that the player passed through.
CKROADS	?
INCTIME	Never seems to change.
CMF:CT	Never seems to change.

Object Viewer

A 3D object viewer is available by holding down P1 Button 5 in attract mode. It allows you to cycle through all of the polygon meshes in the game and see their internal names. The camera resets its orientation but not its zoom when you switch to another object.

Additionally, depending on where in attract mode you opened the object viewer, colors or polygons in attract mode may be incorrect when you exit the object viewer until it cycles again.

Controls

• Coin 1/Coin 2: Previous/Next object.
• P2 Start/Coin 3: Zoom out/Zoom in.
• P1 Button 4: Yaws the object automatically in front of the camera.
• P1 Button 2: Pitch
• P1 Button 3: Bank
• P1 Button 6: Moves the object slowly to the right.

Volume Calibration

The original cabinet featured automatic volume controls, so that the game could adjust itself to be heard in a noisy arcade. There's a calibration feature accessible from attract mode in the later prototype. In attract mode, pressing P1 Button 6 will cause the game to start blaring a sine wave at max volume.

The analog part of the system isn't emulated, so the only way out of this is to reset the game.