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Tictactoe in Alpine.js #438

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merged 2 commits into from
Dec 14, 2023
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Tictactoe in Alpine.js #438

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tictactoe
borkdude Dec 14, 2023
3aa9344
alpinejs
borkdude Dec 14, 2023
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90 changes: 90 additions & 0 deletions examples/babashka/alpinejs_tictactoe.clj
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Original file line number Diff line number Diff line change
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(ns alpinejs-tictactoe
(:require [babashka.deps :as deps]
[hiccup2.core :as h]
[org.httpkit.server :as srv]
[cheshire.core :as json]))

(deps/add-deps '{:deps {io.github.squint-cljs/squint {:local/root "../.."}}})

(require '[squint.compiler :as squint])

(def state (atom nil))
(defn ->js [form]
(let [res (squint.compiler/compile-string* (str form) {:core-alias "$squint_core"})]
(reset! state res)
(h/raw (:body res))))

(defn page [req]
(when (= "/" (:uri req))
{:body (str (h/html
[:html
[:head
[:script {:type "importmap"}
(h/raw
(json/generate-string
{:imports
{"squint-cljs/src/squint/core.js" "https://cdn.jsdelivr.net/npm/squint-cljs@0.4.81/src/squint/core.js"
"squint-cljs/src/squint/string.js" "https://cdn.jsdelivr.net/npm/squint-cljs@0.4.81/src/squint/string.js"}}))]
[:title "Squint"]]
[:body {:x-data
(->js '{:grid [["-" "-" "-"]
["-" "-" "-"]
["-" "-" "-"]]
:player "X"
:winner nil
:otherPlayer (fn [player]
(if (= player "X") "O" "X"))
:getWinner (let [get-board-cell (fn [grid i j]
(get-in grid [i j]))
winner-in-rows? (fn [board player]
(some (fn [row] (every? (fn [c] (= c player)) row)) board)
)
transposed (fn [board] (vec (apply map vector board)))
winner-in-cols? (fn [board player]
(winner-in-rows? (transposed board) player))
winner-in-diagonals? (fn [board player]
(let [diag-coords [[[0 0] [1 1] [2 2]]
[[0 2] [1 1] [2 0]]]]
(some (fn [coords]
(every? (fn [coord]
(= player (apply get-board-cell board coord)))
coords))
diag-coords)))]
(fn isWinner
([board]
(or (isWinner board "X")
(isWinner board "O")))
([board player]
(if (or (winner-in-rows? board player)
(winner-in-cols? board player)
(winner-in-diagonals? board player))
player))))})}
[:div "The winner is: " [:span {:x-text "winner"}]]
[:div {:style "color: #666; position: absolute; top: 200px, left: 45%;"}
[:table
(for [i (range 0 3)]
[:tr
(for [j (range 0 3)]
[:td {:id (str i "-" j)
:style "border: 1px solid #dedede; margin 1px; height: 50px; width: 50px;
line-height: 50px; text-align: center; background: #fff;"
:x-text (->js `(str (aget ~'grid ~i ~j)))
:x-on:click (->js `(if (and (= "-" (aget ~'grid ~i ~j))
(nil? ~'winner))
(do (aset ~'grid ~i ~j ~'player)
(set! ~'player (~'otherPlayer ~'player))
(when-let [w# (~'getWinner ~'grid)]
(set! ~'winner w#)))))}])])]]]
[:script {:type "module"}
(h/raw
"const squint_core = await import('squint-cljs/src/squint/core.js');
const squint_string = await import('squint-cljs/src/squint/string.js');
const { default: Alpine } = await import('https://unpkg.com/alpinejs@3.13.3/dist/module.esm.js');
Alpine.magic('squint_core', () => squint_core);
Alpine.magic('str', () => squint_string);
Alpine.start();")]]))
:status 200}))

(srv/run-server #'page {:port 8888})
(println "Server started at http://localhost:8888")
@(promise)