local gcfg = {
    input_size = 60 + 4, -- TODO: let the script figure this out for us.
    tile_count = 17 * 13,

    ok_routines = {
        [0x4] = true, -- sliding down flagpole
        [0x5] = true, -- end of level auto-walk
        [0x7] = true, -- start of level auto-walk
        [0x8] = true, -- normal (in control)
        [0x9] = true, -- acquiring mushroom
        [0xA] = true, -- losing big mario
        [0xB] = true, -- uhh
        [0xC] = true, -- acquiring fireflower
    },

    bad_states = {
        power = true,
        waiting_demo = true,
        playing_demo = true,
        unknown = true,
        lose = true,
    },

    jp_lut = {
        { -- none
            up     = false, down   = false, left   = false, right  = false,
            select = false, start  = false, B      = false, A      = false,
        }, { -- A
            up     = false, down   = false, left   = false, right  = false,
            select = false, start  = false, B      = false, A      = true,
        }, { -- L
            up     = false, down   = false, left   = true,  right  = false,
            select = false, start  = false, B      = false, A      = false,
        }, { -- R
            up     = false, down   = false, left   = false, right  = true,
            select = false, start  = false, B      = false, A      = false,
        }, { -- L + B
            up     = false, down   = false, left   = true,  right  = false,
            select = false, start  = false, B      = true,  A      = false,
        }, { -- R + B
            up     = false, down   = false, left   = false, right  = true,
            select = false, start  = false, B      = true,  A      = false,
        }, { -- L + A
            up     = false, down   = false, left   = true,  right  = false,
            select = false, start  = false, B      = false, A      = true,
        }, { -- R + A
            up     = false, down   = false, left   = false, right  = true,
            select = false, start  = false, B      = false, A      = true,
        }, { -- L + A + B
            up     = false, down   = false, left   = true,  right  = false,
            select = false, start  = false, B      = true,  A      = true,
        }, { -- R + A + B
            up     = false, down   = false, left   = false, right  = true,
            select = false, start  = false, B      = true,  A      = true,
        }, { -- D
            up     = false, down   = true,  left   = false, right  = false,
            select = false, start  = false, B      = false, A      = false,
        }, { -- D + A
            up     = false, down   = true,  left   = false, right  = false,
            select = false, start  = false, B      = false, A      = true,
        }, { -- U
            up     = true,  down   = false, left   = false, right  = false,
            select = false, start  = false, B      = false, A      = false,
        },
    },

    rotation_offsets = { -- FIXME: not all of these are pixel-perfect.
        0, -40, -- 0x00
        6, -38,
        15, -37,
        22, -32,
        28, -28,
        32, -22,
        37, -14,
        39, -6,
        40, 0, -- 0x08
        38, 7,
        37, 15,
        33, 23,
        27, 29,
        22, 33,
        14, 37,
        6, 39,
        0, 41, -- 0x10
        -7, 40,
        -16, 38,
        -22, 34,
        -28, 28,
        -34, 23,
        -38, 16,
        -40, 8,
        -40, -0, -- 0x18
        -40, -6,
        -38, -14,
        -34, -22,
        -28, -28,
        -22, -32,
        -16, -36,
        -8, -38,
    },
}

return setmetatable(gcfg, {
    __index = function(t, n)
        error("cannot use undeclared gameconfig '" .. tostring(n) .. "'", 2)
    end
})