Conversion of the Spectrum game Trailblazer to the BBC Micro
This game was originally designed by Mr Chip software and published by Gremlin. The ZX Spectrum port was done by the in house team at Gremlin and I used this as guide for my own version written from scratch in 100% 6502 assembler for the BBC.
Here are some of the features of the game:
50 FPS scrolling/animation
2 game modes
Arcade
Test (Practise)
14 levels
7 coloured tile types with different functions
Slow down
Speed up
Jump
Reverse controls
High scores and fastest times saved to disc
Press R on the scores screen to reset them
2 Input options
Keyboard (usual Z, X, /, *, Enter keys)
Joystick
tools used: BeebSpriter graphics editing BeebAsm - Assembling beebEm - Emulation b-em - Emulation/debugging
To build: Run the asm.bat this will assemble the code and generate the output files Create a new disc image in BeebEm and import all of the files INF files to the disc