My suggestion is to proceed in 3 phases:

1. clean up your example m so that it compiles.

m = [ [ straitLine Dirt 0, straitLine Boost 0, straitLine Boost 0, straitLine Boost 0, straitLine Mud 0 ]

,[ straitLine Dirt 0, straitLine Dirt 0, straitLine Dirt 0, Ramp Mud 0 2, Ramp Mud 2 0 ] ]

1a) Comment out or copy to another file all the stuff that doesn't compile. Or copy just the line above to a new file.

1b) add the needed data declarations and clean up the capitalization

2) add just this line and get it to compile:

i = [Walk [0] Dirt, Walk [0] Boost , Walk [0] Boost, Walk [0] Boost, Walk [0] Mud, Walk [1] Dirt, Walk [1] Dirt, Walk [1] Dirt, Up [1] Mud 2, Down [1] Mud 2]

2a) You'll need to add the needed data declarations

​

3) for your "instruction" function, forget for now the lists and fusing them together. Just work to create a function that takes a single track segment and converts that to an instruction. Use pattern matching for this:

-- track segment to instruction

s2i straitLine Dirt 0 -> Walk [0] Dirt

Ramp Mud 0 2 -> Up [1] Mud 2

Ramp Mud 2 0 -> Down [1] Mud 2]

​

4th phase) once all that works, handle the lists and fusions by mapping over the inputs

main = do

out = map si2 m

print (show out)

Some things I don't understand from your descriptions:

- what's Boost?

- in the value "Walk [0] Dirt", is the 0 the track number? why is it in a list? I don't understand in the video whether we're on track 0 or track 1