Thrust Advance GBA

Thrust Advance
General
Author	Matthew R. Partridge
Type	Shooter
Version	1.04
License	Freeware
Last Updated	2002/12/02
Links
Download
Website

Thrust Advance is an unofficial conversion of the arcade space shooter Thrust.

User guide

Differences to Thrust (C64):

• The door opens the wrong way on level 5.
• The teleport effect is missing.
• There should be 2 types of fuel pod, there is only one.
• There are no collisions between the ship or orb and static objects.
• The particles for players bullets, limpet bullets and debris are all the same colour.
• The sprites are 2/3 the size that they should be, in comparison to the landscape.
• The orb stand remains after the orb has been picked up.

Controls

Left/Right - Rotate anti-clockwise/clockwise

A - Fire

B - Thrust

R - Shield, Tractor beam

Screenshots

Compatibility

This version works on hardware as well as emulators as below.

VisualBoyAdvance - Works fine
BoycottAdvance - Has dodgy sound
Mappy - Looks OK but goes totally bonkers

Known issues

After entering a high score it's saved by writing to CartRAM at 0x0E000000 this might possibly cause problems on hardware but does work on VisualBoyAdvance.

Changelog

V1.04 2002/12/02

• Running out of fuel and dying ends the game.
• The reactor flashes when it goes into meltdown.
• Added a pause mode using the "Select" key.
• Added an "enter" character to the highscore entry.
• During highscore entry the "Up" and "Down" keys repeat after a short delay.
• Added a prompt to enter your name on the highscore screen.

V1.03 2002/11/18

• Removed BIOS calls.

V1.02 2002/11/15

• Fixed a minor door bug.
• Fixed bug with losing lives at when the reactor blows.
• Lowered the fireing rate increase when the reactor is destroyed.
• Fixed a rogue limpet gun on map 6.
• Centered the lives, text and number, on the OSD.
• Removed DMA (except sound).

V1.01 2002/11/05

• Changed the title screen.

V1.00 2002/11/05

• Inital release.

Credits

Thanks to:

• Jeremy C. Smith for the original Thrust.
• The entire GBA Dev community for info and tools.
• www.gbadev.org and www.devrs.com/gba/
• Yahoo! group gbadev.
• Everyone who has e-mailed me with helpful comments.
• Extra special thanks go to Chris Naylor for helping me to get it working on a real GBA.

Tools/Docs Used:

• Devkit advance.
• VisualBoyAdvance.
• Gfx2GBA.
• b2x.
• Mappy for Win32, V1.3.14 (tile editor).
• Cowbite spec.
• Jeff Frohwein's crt0.s and lnkscript.
• Jaap Suter's on screen assert routine.

External links

• GBADev - https://www.gbadev.org/demos.php?showinfo=247