tweak inputs: add power-up status, remove top/bottom tile rows

gameconfig.lua

@@ -22,8 +22,8 @@ local function jp_buttons(s)
 end
 
 local gcfg = {
-    input_size = 60 + 4 - 19, -- TODO: let the script figure this out for us.
-    tile_count = 17 * 13,
+    input_size = 60 + 4 - 19 + 1, -- TODO: let the script figure this out for us.
+    tile_count = 17 * 11,
 
     ok_routines = {
         [0x4] = true, -- sliding down flagpole

main.lua

@@ -153,7 +153,7 @@ local function make_network(input_size)
 
     nn_tz = nn_ty
     if cfg.reduce_tiles then
-        nn_tz = nn_tz:feed(nn.Reshape{13, 17 * 2})
+        nn_tz = nn_tz:feed(nn.Reshape{11, 17 * 2})
         nn_tz = nn_tz:feed(nn.DenseBroadcast(5))
         nn_tz = nn_tz:feed(nn.Relu())
         -- note: due to a quirk in Merge, we don't need to flatten nn_tz.
@@ -561,6 +561,8 @@ local function doit(dummy)
     local powerup = game.R(0x754)
     local status = game.R(0x756)
     game.mark_sprite(x + 8, y + 24, -powerup - 1)
+    -- TODO: this will have to do until sprite type embed is added:
+    insert(game.extra_input, (status - 1) * 256)
 
     local vx, vy = game.S(0x57), game.S(0x9F)
     insert(game.extra_input, vx * 16)

smb.lua

@@ -287,7 +287,10 @@ local function handle_tiles()
     local tile_scroll = floor(R(0x73F) / 16) + R(0x71A) * 16
     local tile_scroll_remainder = R(0x73F) % 16
     extra_input[#extra_input+1] = tile_scroll_remainder
-    for y = 0, 12 do
+--  for y = 0, 12 do
+    -- afaik the bottom row is always a copy of the second to bottom,
+    -- and the top is always air, so drop those from the inputs:
+    for y = 1, 11 do
         for x = 0, 16 do
             local col = (x + tile_scroll) % 32
             local t