fix fish direction and placement

vacation.p8

@@ -59,6 +59,12 @@ function event_list:pb(x)
  self.tail = x
 end
 
+function event_list:pf(x)
+ if (not self.next) self.tail = x
+ x.next = self.next
+ self.next = x
+end
+
 function event_list:u()
  local p, n = self, self.next
  while n do
@@ -1595,9 +1601,35 @@ end)
 
 function arcade_level:av()
  if (musicmode & 1 ==0) music(0,1000,7)
+ for _=1,5 do
+  self:gen_fish(-127, 256)
+ end
  font_compact()
 end
 
+function arcade_level:gen_fish(xmin, xrg)
+ local fishdx = rnd(0.5) - 0.25, rnd(xrg) + xmin
+ local fish = spritem.new{
+  x = rnd(xrg) + xmin,
+  y = 80 + irnd(44),
+  s = {54, 55, 56, 55},
+  flipx = fishdx > 0,
+  i = irnd(4) + 1,
+  f = 20,
+ }
+ self.bg:pf(parallax.new{
+  level=self,
+  item=fish,
+  dx=fishdx,
+  z=0.5 + rnd(0.4),
+  id="fish",
+ })
+end
+
+function arcade_level:pdone(item)
+ if (item.id == "fish") self:gen_fish(129, 50)
+end
+
 function arcade_level:onmchg()
  music((musicmode & 0x1 == 0) and 0 or -1, 500, 7)
 end
@@ -1621,6 +1653,7 @@ function arcade_level:u()
   end
   if (self.d:u()) seq:next()
  end
+ self.pdx = (self.phin.entered and not self.phin.exiting) and -1 or 0
  self.v:u()
 end
 
@@ -2566,14 +2599,14 @@ __gfx__
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 000000007000000000000000000000070000000000000000000000007000000000000007000000000002222e0000000000000000000222270000000000000000
 000000007777777777777777777777770000000000000000000000007777777777777777022000000022e222ee20000002200000002272227720000000000000
-000000000000000000000000a00aa00a000aa00000a00a0000000000000000000000000022e200002ee222222222200022720000277222222222200000000000
-00000000000aa0000f0aa0f0000ff00000a00a000000000000000000000000000000000002ee22222222222227772e2002772222222222222777272000000000
-000aa0000000000000affa0000a00a000a0000a0a000000a000000000000000000000000022e22ee2222222227c122e20e2722772222222227c1227200000000
-00aaaa000a0ff0a00afaafa0af0000faa000000a000000000000000000000000000000002222227772222222227772e2222222eee222222222eee27200000000
-00aaaa000a0ff0a00afaafa0af0000faa000000a00000000000000000000000000000000222777777777722227777770222eeeeeeeeee2222eeeeee000000000
-000aa0000000000000affa0000a00a000a0000a0a000000a00000000000000000000000027770000777722e2777770002eee0000eeee2272eeeee00000000000
-00000000000aa0000f0aa0f0000ff00000a00a0000000000000000000000000000000000770000000002222e00000000ee000000000222270000000000000000
-000000000000000000000000a00aa00a000aa00000a00a00000000000000000000000000000000000222770000000000000000000222ee000000000000000000
+000000000000000000000000a00aa00a000aa00000a00a0000000001000000000000000022e200002ee222222222200022720000277222222222200000000000
+00000000000aa0000f0aa0f0000ff00000a00a000000000000010001000100010000100002ee22222222222227772e2002772222222222222777272000000000
+000aa0000000000000affa0000a00a000a0000a0a000000a011110110111101101111001022e22ee2222222227c122e20e2722772222222227c1227200000000
+00aaaa000a0ff0a00afaafa0af0000faa000000a000000001111111111111111111111112222227772222222227772e2222222eee222222222eee27200000000
+00aaaa000a0ff0a00afaafa0af0000faa000000a00000000111111111111111111111111222777777777722227777770222eeeeeeeeee2222eeeeee000000000
+000aa0000000000000affa0000a00a000a0000a0a000000a01111001011110110111101127770000777722e2777770002eee0000eeee2272eeeee00000000000
+00000000000aa0000f0aa0f0000ff00000a00a0000000000000010000001000100010001770000000002222e00000000ee000000000222270000000000000000
+000000000000000000000000a00aa00a000aa00000a00a00000000000000000000000001000000000222770000000000000000000222ee000000000000000000
 00000000000066000000000000000000000002200000000000000000000002200000000000000000000000000000000000000000000000000000000000000000
 0000000000022260000000000000000000222662000000000000000000222662000000000000000000000000000070220000000000220e220000000000000000
 00000000002222e000000000000000006227222e00000000000000002227222e0000000000000000000000000222026200000000022262220000000000000000