Manic Miner Air Supply - a more refined approach

[Spider]

I don't have the specifics to hand but I do remember when I altered one project, I had to fiddle about (read: experiment) with iirc two area's to make the air supply behave properly. My concern at the time was to get the 'lowest bar' into the right place.

[IRF]

; THE GAME CLOCK

;original

35389 LD A,(32957) :GAME CLOCK
35391 SUB 4
35393 LD (32957),A
35396 CP -4
35398 JR NZ,35413

35400 LD A,(32956) ;AIR SUPPLY
35403 CP 36
35405 RET Z
35406 DEC A
35407 LD (32956),A
35410 LD A,(32957)

35413   AND 224

 

;change to

 

35389 LD A,(32957)
35391 SUB 4   ; Now becomes possible to change (not recommended)
35393 LD (32957),A
35396 nop ;<<<< poke 35396,00
35397 nop     ;<<<< poke 35397,00
35398 jr nc,35413 ;<<<< poke 35398,48

35400 LD A,(32956)
35403 CP 36
35405 RET Z
35406 DEC A
35407 LD (32956),A
35410 LD A,(32957)

35413   AND 224

 

; this will remove the restriction on having the game clock
; fixed to 4,8,12,16,etc

 

; any value will now work

 

; as far as I can see no routine uses the bottom two bits

; horizontal guardians use the toggling of bit 2 - so unused bit 0-1

 

; Eugene uses the value/4 for colour - so unused bit 0-1

 

; Kong beast uses the value/32 - again unused bit 0-1

 

; I can find no usage for the lower two bits

 

; for example if the value of SUB 4 is change to say sub 2 the game will still run
; the (slow) horizontal sprites will become jerky
; the value can be changed to SUB 1, the (slow) sprites will become even jerkier, but the game will still run
; this change (not recommended) also changes the decrease in air supply speed.
; SUB 1 gives you four times as long in a cavern, and big points when it is finished

; Of course this type of change also affects the animation of Kong and the colour change in Eugene,

;both of which are cosmetic

 

The above has got me thinking - is there any modified Manic Miner game (using John Elliott's 'Special Guardians in any Cavern' patch) which has either:

- A Kong Beast AND a Solar Beam;

or:

- A Eugene AND a Solar Beam.

It has occurred to me that when Willy is inside the Solar Beam, the Kong Beast might get quite 'agitated'!  i.e. Its arms might wave about in a most erratic way, because of the effect of the Solar Beam in adjusting the air supply more quickly than usual.

Furthermore, if Willy enters the trajectory of the Solar Beam whilst Eugene is angry and colour-cycling, then Eugene's colour scheme will deviate from the usual sequence (for the same reason).

Areas for investigation...