Starts a game of tic tac toe with !ttt <@user>. You can even play against yourself! Take turns and play moves by replying to the game board message with a row and column, separated by a comma (for example, "b,2" would be the middle space). This snippet checks the content of the messages it sends to determine game state, so if you want to customize the messages, make sure you change the checks in the code as well!
const lib = require('lib')({token: process.env.STDLIB_SECRET_TOKEN});
let emptyTile = '⬛';
let piece1 = '❌';
let piece2 = '🔵';
let checkState = (board) => {
let hasRowMatch = board.find((row) => {
return row[0] !== emptyTile && (row[0] === row[1] && row[1] === row[2]);
});
let hasColumnMatch = board[0].find((columnHeader, i) => {
return columnHeader !== emptyTile && (columnHeader === board[1][i] && board[1][i] === board[2][i]);
});
let hasDiagonalMatch = (
(board[0][0] !== emptyTile && (board[0][0] === board[1][1] && board[1][1] === board[2][2])) ||
(board[0][2] !== emptyTile && (board[0][2] === board[1][1] && board[1][1] === board[2][0]))
);
let isFull = !board.find((row) => {
return row.find((tile) => {
return tile === emptyTile;
});
});
if (hasRowMatch || hasColumnMatch || hasDiagonalMatch) {
return 'win';
} else if (isFull) {
return 'draw';
} else {
return 'incomplete';
}
};
let event = context.params.event;
let referencedMessage = event.referenced_message;
if (
!referencedMessage && (
event.content.startsWith(`${process.env.PREFIX}ttt`) ||
event.content.startsWith(`${process.env.PREFIX}tictactoe`)
)
) {
if (!event.mentions.length) {
return lib.discord.channels['@0.1.2'].messages.create({
channel_id: `${event.channel_id}`,
content: `You must mention someone to play against!`
});
}
let starterBoard = [
[emptyTile, emptyTile, emptyTile],
[emptyTile, emptyTile, emptyTile],
[emptyTile, emptyTile, emptyTile]
];
await lib.discord.channels['@0.1.1'].messages.create({
channel_id: `${event.channel_id}`,
content: [
`It's Tic Tac Toe! <@!${event.author.id}>, it's your turn! You are ${piece1}.`,
``,
`Reply to this message with a row (a, b, or c) and a column (1, 2, or 3) matching your move. For example, a,1`,
``,
`<@!${event.mentions[0].id}>, you're next.`
].join('\n'),
embed: {
type: 'rich',
description: starterBoard.map((row) => {
return row.join('');
}).join('\n'),
color: 0x00AAAA
}
});
} else if (
referencedMessage &&
referencedMessage.author.bot &&
referencedMessage.content.startsWith(`It's Tic Tac Toe!`)
) {
let botResponse = await lib.discord.users['@0.1.4'].me.list();
if (referencedMessage.author.id !== botResponse.id) {
return;
}
let currentUser;
let nextUser;
let currentPiece = referencedMessage.content.includes(piece1) ? piece1 : piece2;
if (!referencedMessage.mentions[1]) {
// Playing against yourself
currentUser = referencedMessage.mentions[0].id;
nextUser = referencedMessage.mentions[0].id;
} else if (referencedMessage.content.indexOf(referencedMessage.mentions[0].id) < referencedMessage.content.indexOf(referencedMessage.mentions[1].id)) {
currentUser = referencedMessage.mentions[0].id;
nextUser = referencedMessage.mentions[1].id;
} else {
currentUser = referencedMessage.mentions[1].id;
nextUser = referencedMessage.mentions[0].id;
}
if (event.author.id !== currentUser) {
await lib.discord.channels['@0.1.2'].messages.destroy({
message_id: `${context.params.event.id}`,
channel_id: `${context.params.event.channel_id}`
});
return lib.discord.channels['@0.1.2'].messages.create({
channel_id: `${context.params.event.channel_id}`,
content: `Sorry, it's <@!${currentUser}>'s turn to play!`
});
}
let currentBoard = referencedMessage.embeds[0].description.split('\n').map((row) => {
return [...row]; // Split on empty character does not work on emoji
});
let row = event.content.split(',')[0].trim().toLowerCase();
let column = parseInt((event.content.split(',')[1] || '').trim());
if (
!['a', 'b', 'c'].includes(row) ||
![1, 2, 3].includes(column)
) {
await lib.discord.channels['@0.1.2'].messages.destroy({
message_id: `${context.params.event.id}`,
channel_id: `${context.params.event.channel_id}`
});
return lib.discord.channels['@0.1.2'].messages.create({
channel_id: `${context.params.event.channel_id}`,
content: `Sorry <@!${currentUser}>, ${event.content} is not a valid move! Try "a,1".`
});
}
if (row === 'a') {
row = 0;
} else if (row === 'b') {
row = 1;
} else {
row = 2;
}
column = column - 1;
let currentTile = currentBoard[row][column];
if (currentTile !== emptyTile) {
await lib.discord.channels['@0.1.2'].messages.destroy({
message_id: `${context.params.event.id}`,
channel_id: `${context.params.event.channel_id}`
});
return lib.discord.channels['@0.1.2'].messages.create({
channel_id: `${context.params.event.channel_id}`,
content: `Sorry <@!${currentUser}>, ${event.content} has already been played!`
});
}
currentBoard[row][column] = currentPiece;
let replyContent;
let gameState = checkState(currentBoard);
if (gameState === 'win') {
replyContent = `The game is over! <@!${currentUser}> wins!`
} else if (gameState === 'draw') {
replyContent = `The game is over! It's a draw!`;
} else {
replyContent = [
`It's Tic Tac Toe! <@!${nextUser}>, it's your turn! You are ${currentPiece === piece1 ? piece2 : piece1}.`,
``,
`Reply to this message with a row (a, b, or c) and a column (1, 2, or 3) matching your move. For example, a,1`,
``,
`<@!${currentUser}>, you're next.`
].join('\n');
}
let newEmbed = referencedMessage.embeds[0];
newEmbed.description = currentBoard.map((row) => {
return row.join('');
}).join('\n');
return lib.discord.channels['@0.1.2'].messages.create({
channel_id: `${event.channel_id}`,
content: replyContent,
embed: newEmbed
});
}
