上回介绍了玩法，现在编写了玩法的简单建模。
做到现在感觉目前还没有使用umbrella的必要(也许以后会发现必要吧），model 应用完全可以合并到game_server。
代码还在https://github.com/rubyist1982/simple 上。
model 应用新增 simple_poker.ex , 代码不多，做了点简单注释，可以贴下
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defmodule SimplePoker do
@cards for i <- 1..4, j<- 1..13, do: {i, j}
@ten 10
@ace 1
@tian_gong [8,9]
@ignore 0
def init_cards, do: @cards
# 洗牌
def shuffle(cards), do: cards |> Enum.shuffle
# 初始发牌
def init_deal(cards, seat_num) do
{cs, left} = cards |> Enum.split(seat_num * 2)
{:ok, Enum.chunk_every(cs, 2), left}
end
# 补单张
def deal([card| left]), do: {:ok, card, left}
def single_point({_, p}) when p < @ten, do: p
def single_point(_), do: @ten
def normal_power(cards) do
sum = cards |> Enum.map( &single_point(&1) ) |> Enum.sum
rem(sum, @ten)
end
# 牌力计算, 需参考是否开牌
def power([_a, _b] = cards, is_open) do
p = normal_power(cards)
cond do
p in @tian_gong and is_open -> {:tian_gong, p}
true ->{:normal, p}
end
end
def power(cards, false) do
cond do
is_flush_straight?(cards) -> {:flush_straight, @ignore}
is_three?(cards) -> {:three, @ignore}
is_flush?(cards) -> {:flush, @ignore}
is_straight?(cards) -> {:straight, @ignore}
true -> {:normal, normal_power(cards)}
end
end
# a 是否赢 b
# 都是天公，比点数
def win?({:tian_gong, p1}, {:tian_gong, p2}), do: p1 > p2
# 天公比其他都大
def win?({:tian_gong, _}, _), do: true
def win?(_, {:tian_gong, _}), do: false
# 非普通牌，通牌型一样大
def win?({same, _}, {same, _}) when same != :normal, do: false
# 同花顺比余下都大, 以下类推
def win?({:flush_straight, _}, _), do: true
def win?(_, {:flush_straight, _}), do: false
def win?({:three, _}, _), do: true
def win?(_, {:three, _}), do: false
def win?({:flush, _}, _), do: true
def win?(_, {:flush, _}), do: false
def win?({:straight, _}, _), do: true
def win?(_, {:straight, _}), do: false
# 普通牌需要比较点数
def win?({:normal, p1}, {:normal, p2}), do: p1 > p2
# 赢多少倍
def multiply({:tian_gong, _}), do: 1
def multiply({:flush_straight, _}), do: 16
def multiply({:three, _}), do: 8
def multiply({:flush, _}), do: 4
def multiply({:straight, _}), do: 2
def multiply({:normal, _}), do: 1
def is_flush?([{s, _}, {s, _}, {s, _}]), do: true
def is_flush?(_), do: false
def is_straight?([{_, p1}, {_, p2}, {_, p3}]) do
[n1, n2, n3] = [p1, p2, p3] |> Enum.sort
cond do
n1 + 1 == n2 and n2 + 1 == n3 -> true
n1 == @ace and n2 + 1 == n3 -> true
n1 == @ace and n2 + 2 == n3 -> true
true -> false
end
end
def is_three?([{_, p}, {_, p}, {_, p}]), do: true
def is_three?([{_, p1}, {_, p2}, {_, p3}]) do
case [p1, p2, p3] |> Enum.sort do
[@ace, @ace, _] -> true
[@ace, n, n] -> true
_other -> false
end
end
def is_flush_straight?(cards), do: is_flush?(cards) and is_straight?(cards)
end
# SimplePoker.init_cards |> SimplePoker.shuffle |> IO.inspect
# SimplePoker.init_cards |> SimplePoker.init_deal(2) |> IO.inspect
测试代码 simple_poker_test.exs
defmodule SimplePokerTest do
use ExUnit.Case
doctest SimplePoker
setup do
%{
s_ace: {1,1}, # 黑桃A
h_ace: {2, 1}, # 红桃A,
c_ace: {3, 1}, # 梅花A
s_two: {1, 2}, # 黑桃2
h_two: {2, 2}, # 红桃2
c_two: {3, 2}, # 梅花2
s_three: {1, 3}, # 黑桃3
h_three: {2, 3}, # 红桃3
s_four: {1, 4}, # 黑桃4
h_four: {2, 4}, # 红桃4
s_five: {1, 5}, # 黑桃5
s_eight: {1, 8}, # 黑桃8
s_nine: {1, 9}, # 黑桃9
s_ten: {1, 10}, # 黑桃10
s_jack: {1, 11}
}
end
test "同花: 黑桃A，黑桃2, 黑桃3 ", cards do
flush_cards = [cards.s_ace, cards.s_two, cards.s_three]
assert SimplePoker.is_flush?(flush_cards)
end
test "非同花: 黑桃A, 红桃A, 黑桃2 ", cards do
not_flush_cards = [cards.s_ace, cards.h_ace, cards.s_two]
refute SimplePoker.is_flush?(not_flush_cards)
end
test "三条: 普通", cards do
normal_three = [cards.s_two, cards.h_two, cards.c_two]
assert SimplePoker.is_three?(normal_three)
end
test "三条：1张A + 1对 ", cards do
one_ace_and_one_pair = [cards.s_two, cards.h_two, cards.s_ace]
assert SimplePoker.is_three?(one_ace_and_one_pair)
end
test "三条: 2张A + 1张2 ", cards do
two_ace_and_one = [cards.s_ace, cards.h_ace, cards.s_two]
assert SimplePoker.is_three?(two_ace_and_one)
end
test "非三条: A, 2, 3", cards do
not_three = [cards.s_ace, cards.s_two, cards.s_three]
refute SimplePoker.is_three?(not_three)
end
test "顺子： 普通 黑桃2， 黑桃3， 红桃4", cards do
normal_straight = [cards.s_two, cards.s_three, cards.h_four]
assert SimplePoker.is_straight?(normal_straight)
end
test "顺子： 普通 黑桃A, 黑桃2， 红桃3", cards do
one_ace_normal_straight = [cards.s_ace, cards.s_two, cards.h_three]
assert SimplePoker.is_straight?(one_ace_normal_straight)
end
test "顺子: 普通 黑桃A, 黑桃2， 红桃4", cards do
one_ace_normal_straight = [cards.s_ace, cards.s_two, cards.h_four]
assert SimplePoker.is_straight?(one_ace_normal_straight)
end
test "非顺子: 黑桃A， 黑桃2, 红桃2", cards do
not_straight = [cards.s_ace, cards.s_two, cards.h_two]
refute SimplePoker.is_straight?(not_straight)
end
test "同花顺: 普通", cards do
normal_flush_straight = [cards.s_two, cards.s_three, cards.s_four]
assert SimplePoker.is_flush_straight?(normal_flush_straight)
end
test "普通三张", cards do
normal = [cards.s_two, cards.s_two, cards.h_three]
assert {:normal, _} = SimplePoker.power(normal, false)
end
test "天公9点", cards do
assert {:tian_gong, 9} = [cards.s_ace, cards.s_eight] |> SimplePoker.power(true)
assert {:tian_gong, 9} = [cards.s_four, cards.s_five] |> SimplePoker.power(true)
end
test "普通9点", cards do
assert {:normal, 9} = [cards.s_ace, cards.s_eight] |> SimplePoker.power(false)
end
test "single_point", cards do
assert 1 == cards.s_ace |> SimplePoker.single_point
assert 10 == cards.s_ten |> SimplePoker.single_point
assert 10 == cards.s_jack |> SimplePoker.single_point
end
test "win?" do
tian_gong_9 = {:tian_gong, 9}
tian_gong_8 = {:tian_gong, 8}
flush_straight = {:flush_straight, 0}
three = {:three, 0}
flush = {:flush, 0}
straight = {:straight, 0}
normal_9 = {:normal, 9}
normal_8 = {:normal, 8}
assert SimplePoker.win?(tian_gong_9, tian_gong_8)
refute SimplePoker.win?(tian_gong_9, tian_gong_9)
refute SimplePoker.win?(tian_gong_8, tian_gong_9)
assert SimplePoker.win?(tian_gong_9, flush_straight)
refute SimplePoker.win?(flush_straight, tian_gong_9)
refute SimplePoker.win?(flush_straight, flush_straight)
assert SimplePoker.win?(flush_straight, three)
refute SimplePoker.win?(three, flush_straight)
assert SimplePoker.win?(three, flush)
refute SimplePoker.win?(flush, three)
assert SimplePoker.win?(flush, straight)
refute SimplePoker.win?(straight, flush)
assert SimplePoker.win?(straight, normal_9)
refute SimplePoker.win?(normal_9, straight)
assert SimplePoker.win?(normal_9, normal_8)
refute SimplePoker.win?(normal_9, normal_9)
refute SimplePoker.win?(normal_8, normal_9)
end
end
下回该建模游戏桌了
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