Implement hint system and music mute. (#18)

Test hints now both display on level 0

Allows testing progressive display of more hints.

Code review feedback, debug mode

Reviewed-on: #18
Co-authored-by: Kistaro Windrider <kistaro@gmail.com>
Co-committed-by: Kistaro Windrider <kistaro@gmail.com>

chameleonic.p8

@@ -8,6 +8,7 @@ real_modules={}
 frame=0
 function _init()
  -- printh("restarting")
+ music_on()
  _doall("init") end
 function _update()
  frame+=1
@@ -15,6 +16,23 @@ function _update()
 function _draw()
  _doall("draw") end
 
+function music_on()
+ music(0)
+ menuitem(3, "music: on", music_off)
+end
+
+function music_off()
+ music(-1)
+ menuitem(3, "music: off", music_on)
+end
+
+function gsv(s)
+ local ret=split(s,"\n")
+ for i,v in ipairs(ret) do
+  ret[i] = type(v) == "string" and split(v,"`") or {v} end
+ return ret
+end
+
 mnames={}
 function names(root)
  local n=mnames[root]
@@ -97,6 +115,15 @@ function sgn0(x)
  return x!=0 and sgn(x) or 0
 end
 
+function inorder(tbl)
+ local prev
+ for v in all(tbl) do
+  if (prev and v < prev) return
+  prev = v
+ end
+ return true
+end
+
 function _mnmx(x,y)
  if (x>y)return y,x
  return x,y
@@ -266,6 +293,7 @@ function level:init()
 end
 
 function level:reinit(n)
+ self.hintlevel = 0
  self.ix=n
  self.todo={}
  self.bigx,self.bigy=n%8,n\8
@@ -1704,6 +1732,63 @@ function level_text:draw()
   print(xys[4],xys[2],xys[3],6)
  end
 end
+
+-->8
+--hint system
+function rot13(s)
+ local sord = pack(ord(s,1,#s))
+ for i,c in ipairs(sord) do
+  if (inorder{65, c, 77} or inorder{97, c, 109}) sord[i]=c+13
+  if (inorder{78, c, 90} or inorder{110, c, 122}) sord[i]=c-13
+ end
+ return chr(unpack(sord))
+end
+--hint file format:
+-- each row is one hint. 4 columns per row
+-- separated with a grave (`) character
+-- room# ` X (screen px) ` Y (screen px) ` message
+-- message is ROT13d; works for a-zA-Z
+
+hints = {}
+add(real_modules,hints)
+
+function hints:init()
+ local h = gsv[[0`64`64`zYRZ
+0`32`32`fCYHOC]]
+ for rec in all(h) do
+  rec[4]=rot13(rec[4])
+  local lh = self[rec[1]]
+  if lh then
+   add(lh,rec)
+  else
+   self[rec[1]] = {rec}
+  end
+ end
+ menuitem(1,"get hint",function() level.hintlevel+=1 end)
+ menuitem(2,"hide hints",function() level.hintlevel=0 end)
+ -- debug mode: enable mouse
+ poke(0x5f2d,1)
+end
+
+hintflicker={7,10,9,8,8,9,10,7}
+function hints:draw2()
+ pal()
+ local c=hintflicker[t()%1*#hintflicker\1+1]
+  -- debug mode: mouse coord display
+ if stat(34) != 0 then
+  local mousex, mousey = stat(32), stat(33)
+  print("x ("..mousex..", "..mousey..")",mousex,mousey,c)
+ end
+
+
+ for i,h in ipairs(self[level.ix]) do
+  if (i > level.hintlevel) return
+  local _,x,y,txt=unpack(h)
+  print(txt,x-1,y+1,1)
+  print(txt,x,y,c)
+ end
+end
+
 __gfx__
 000030000000002200003000eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeff1ff1ff1fffffff1ffffff1fffffff1dddddddd111111110005000000000000
 003333300000332200333330eeffffffffffffffffffffeee5e555e55e555e5eff1ff1ffffffffffffffffffffffffffdddddddd111111110000500000000000