Sha256: 1a343c19365a4547d6f5769e84583672cddff7e08343b29b59d23ce8b9b263dd
Contents?: true
Size: 1.34 KB
Versions: 384
Compression:
Stored size: 1.34 KB
Contents
return function()
local current = {}
local frames = {}
local function strike()
return current[1] == 10
end
local function spare()
return current[1] + current[2] == 10
end
local function complete()
return #frames == 10
end
return {
roll = function(pins)
assert(not complete(), 'the game is already over')
assert(pins >= 0 and pins <= 10, 'illegal roll')
table.insert(current, pins)
if #current == 3 and strike() then
assert(current[2] == 10 or current[2] + current[3] <= 10, 'illegal roll')
table.insert(frames, current[1] + current[2] + current[3])
table.remove(current, 1)
end
if #current == 3 and spare() then
table.insert(frames, current[1] + current[2] + current[3])
table.remove(current, 1)
table.remove(current, 1)
end
if #frames < 10 and #current == 2 and not spare() and not strike() then
local total = current[1] + current[2]
assert(total <= 10, 'illegal roll')
table.insert(frames, total)
table.remove(current, 1)
table.remove(current, 1)
end
end,
score = function()
assert(complete(), 'the game is not yet over')
local score = 0
for _, frame_score in ipairs(frames) do
score = score + frame_score
end
return score
end
}
end
Version data entries
384 entries across 384 versions & 1 rubygems