Some compatability issues

[Sterophonick]

Celeste: Random corruption, multiple players, skipping levels
Tomb of G'Nir: Random 8 and 4s are visible
Rolly: Doesn't Start

[Shoozza]

Celeste: https://www.lexaloffle.com/bbs/?tid=2145
Tomb of G'Nir: https://www.lexaloffle.com/bbs/?tid=31258
Rolly: https://www.lexaloffle.com/bbs/?tid=31526

[Shoozza]

Rolly:

=======>8========
Error: api.lua:1089: Error loading lua: [string "rolly.p8"]:1049: ambiguous syntax (function call x new statement) near '('
stack traceback:
        [C]: in function 'error'
        api.lua:1089: in function 'run'
        [string "nocart.p8"]:161: in function <[string "nocart.p8"]:32>
        main.lua:785: in function <main.lua:746>
        [C]: in function 'xpcall'
make: *** [makefile:8: all] Error 1

function distanceinwall(box,checkx,checky,direction)
 local distanceinwall=0

 while mapcol
 (box,distanceinwall*checkx,  --<<<<<< line 1049 <<<<<<
      distanceinwall*checky,0) do
  distanceinwall = distanceinwall + (pixel*direction)
 end

 return distanceinwall
end

[Shoozza]

Tomb of G'Nir:

function _update()
	if game_state == 0 then
		respawn_timer += 1
		if respawn_timer == 40 then
			respawn_timer = 0
		end
		if btnp(5) then
			game_state = 1
			respawn_timer = 0
			-- blank out map param markers
  	for x=0,127 do
  		for y=60,63 do
  			mset(x,y,0) --<<<<<< should set 8 and 4s etc to black <<<<<<
  		end
  	end
		end 
		return
	end
-- ...

[Shoozza]

rolly.p8 doesn't crash anymore with the latest fix