Created
October 8, 2018 11:55
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Front-end fix.
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var isSetup = true; | |
var placedShips = 0; | |
var game; | |
var shipType; | |
var vertical; | |
function makeGrid(table, isPlayer) { | |
for (i=0; i<10; i++) { | |
let row = document.createElement('tr'); | |
for (j=0; j<10; j++) { | |
let column = document.createElement('td'); | |
column.addEventListener("click", cellClick); | |
row.appendChild(column); | |
} | |
table.appendChild(row); | |
} | |
} | |
function markHits(board, elementId, surrenderText) { | |
board.attacks.forEach((attack) => { | |
let className; | |
if (attack.result === "MISS") | |
className = "miss"; | |
else if (attack.result === "HIT") | |
className = "hit"; | |
else if (attack.result === "SUNK") | |
className = "hit" | |
else if (attack.result === "SURRENDER") | |
alert(surrenderText); | |
document.getElementById(elementId).rows[attack.location.row-1].cells[attack.location.column.charCodeAt(0) - 'A'.charCodeAt(0)].classList.add(className); | |
}); | |
} | |
function redrawGrid() { | |
Array.from(document.getElementById("opponent").childNodes).forEach((row) => row.remove()); | |
Array.from(document.getElementById("player").childNodes).forEach((row) => row.remove()); | |
makeGrid(document.getElementById("opponent"), false); | |
makeGrid(document.getElementById("player"), true); | |
if (game === undefined) { | |
return; | |
} | |
game.playersBoard.ships.forEach((ship) => ship.occupiedSquares.forEach((square) => { | |
document.getElementById("player").rows[square.row-1].cells[square.column.charCodeAt(0) - 'A'.charCodeAt(0)].classList.add("occupied"); | |
})); | |
markHits(game.opponentsBoard, "opponent", "You won the game"); | |
markHits(game.playersBoard, "player", "You lost the game"); | |
} | |
var oldListener; | |
function registerCellListener(f) { | |
let el = document.getElementById("player"); | |
for (i=0; i<10; i++) { | |
for (j=0; j<10; j++) { | |
let cell = el.rows[i].cells[j]; | |
cell.removeEventListener("mouseover", oldListener); | |
cell.removeEventListener("mouseout", oldListener); | |
cell.addEventListener("mouseover", f); | |
cell.addEventListener("mouseout", f); | |
} | |
} | |
oldListener = f; | |
} | |
function cellClick() { | |
let row = this.parentNode.rowIndex + 1; | |
let col = String.fromCharCode(this.cellIndex + 65); | |
console.log(col); | |
if (isSetup) { | |
sendXhr("POST", "/place", {game: game, shipType: shipType, x: row, y: col, isVertical: vertical}, function(data) { | |
game = data; | |
redrawGrid(); | |
placedShips++; | |
if (placedShips == 3) { | |
isSetup = false; | |
registerCellListener((e) => {}); | |
} | |
}); | |
} else { | |
sendXhr("POST", "/attack", {game: game, x: row, y: col}, function(data) { | |
game = data; | |
redrawGrid(); | |
}) | |
} | |
} | |
function sendXhr(method, url, data, handler) { | |
var req = new XMLHttpRequest(); | |
req.addEventListener("load", function(event) { | |
if (req.status != 200) { | |
alert("Cannot complete the action"); | |
return; | |
} | |
handler(JSON.parse(req.responseText)); | |
}); | |
req.open(method, url); | |
req.setRequestHeader("Content-Type", "application/json"); | |
req.send(JSON.stringify(data)); | |
} | |
function place(size) { | |
return function() { | |
let row = this.parentNode.rowIndex; | |
let col = this.cellIndex; | |
vertical = document.getElementById("is_vertical").checked; | |
let table = document.getElementById("player"); | |
for (let i=0; i<size; i++) { | |
let cell; | |
if(vertical) { | |
let tableRow = table.rows[row+i]; | |
if (tableRow === undefined) { | |
// ship is over the edge; let the back end deal with it | |
break; | |
} | |
cell = tableRow.cells[col]; | |
} else { | |
cell = table.rows[row].cells[col+i]; | |
} | |
if (cell === undefined) { | |
// ship is over the edge; let the back end deal with it | |
break; | |
} | |
cell.classList.toggle("placed"); | |
} | |
} | |
} | |
function initGame() { | |
makeGrid(document.getElementById("opponent"), false); | |
makeGrid(document.getElementById("player"), true); | |
document.getElementById("place_minesweeper").addEventListener("click", function(e) { | |
shipType = "MINESWEEPER"; | |
registerCellListener(place(2)); | |
}); | |
document.getElementById("place_destroyer").addEventListener("click", function(e) { | |
shipType = "DESTROYER"; | |
registerCellListener(place(3)); | |
}); | |
document.getElementById("place_battleship").addEventListener("click", function(e) { | |
shipType = "BATTLESHIP"; | |
registerCellListener(place(4)); | |
}); | |
sendXhr("GET", "/game", {}, function(data) { | |
game = data; | |
}); | |
}; |
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