//base character set const charset = (()=>{ //adding linebreak and tab to the list let res = ["\n","\t","
"] for(let i=32;i<=126;++i) res.push(String.fromCharCode(i)) return res })() //function to create shifted encryption character set function shift(k=0){ let res = [] for(let i in charset) res.push( charset[(+i+k)%charset.length]) return res } //encrypt function function encrypt(msg, k=1){ let res = [] let shiftedref = shift(k) for(let i of msg){ res.push( shiftedref[charset.indexOf(i)]) } return res.join("") } //decrypt function function decrypt(msg, k=1){ let res = [] let shiftedref = shift(k) for(let i of msg){ res.push( charset[shiftedref.indexOf(i)]) } return res.join("") } onload = () => { let message = ` Congratulations! You have uncovered =^..^= 's secret treasure. $ $ $$$$$$ $ $ $ $ $ $ $ $ $ $ $$$$$$ $ $ $ $ $ $ $ $ $ $ $$$$$$ $ $ ` const key = parseInt("101010".toString(2),2) let secret = encrypt(message,key) glyph.textContent = secret function checkAnswer(){ glyph.textContent = decrypt(secret,+thekey.value) if(thekey.value==key) glyph.classList.add("win") else glyph.classList.remove("win") } checkAnswer() function limitDigit(d=2){ thekey.value = thekey.value.length>d ? thekey.value.slice(-2) : thekey.value } thekey.oninput = () => { limitDigit() checkAnswer() } /* Preliminary Test explorations */ const test = `!Hello 1234~ multiline support?` testdiv.insertAdjacentHTML("beforeend","

charset:

") testdiv.insertAdjacentHTML("beforeend","

"+charset+"

") testdiv.insertAdjacentHTML("beforeend","

test string:

") testdiv.insertAdjacentHTML("beforeend","

"+test+"

"+"
") let encryptedmsg = encrypt(test,key) testdiv.insertAdjacentHTML("beforeend","

encrypted string:

") testdiv.insertAdjacentHTML("beforeend","

"+encryptedmsg+"

"+"
") testdiv.insertAdjacentHTML("beforeend","

decrypted string:

") testdiv.insertAdjacentHTML("beforeend","

"+decrypt(encryptedmsg, key)+"

") }

CodemonEvent: CaesarCipher