statki/public/assets/js/battleships-lib.js

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class Battleships {
constructor(boardSize) {
if (boardSize>0) {
this.boardSize = boardSize;
} else {
throw new Error("Incorrect boardSize for the 'Battleships' class");
}
}
generateDOMBoard(size) {
let board = "";
for (var i = 0; i < size; i++) {
let row = "<div class=\"row\">";
for (var n = 0; n < size; n++) {
row += `<div class="field" data-pos-x="${n}" data-pos-y="${i}"><div class="shipField"><svg xmlns='http://www.w3.org/2000/svg' version='1.1' preserveAspectRatio='none' viewBox='0 0 100 100'><path d='M100 0 L0 100 ' stroke='black' stroke-width='3'/><path d='M0 0 L100 100 ' stroke='black' stroke-width='3'/></svg></div></div>`;
}
row += "</div>";
board += row;
}
return board;
}
getField(x, y) {
if (0 <= x && x < this.boardSize && 0 <= y && y < this.boardSize) {
x++;
y++;
return $(`#board .row:nth-child(${y}) .field:nth-child(${x})`);
} else {
throw new RangeError("getField position out of range.");
}
}
getRow(row) {
row++;
if (row<=this.boardSize) {
return $(`#board .row:nth-child(${row}) .field`);
} else {
throw new RangeError("getRow position out of range.");
}
}
getColumn(column) {
column++;
if (column<=this.boardSize) {
return $(`#board .row .field:nth-child(${column})`);
} else {
throw new RangeError("getColumn position out of range.");
}
}
placeShip(data) {
let fields = [];
switch (data.rot) {
case 0:
for (let i = 0; i <= data.type; i++) {
fields.push([data.posX + i, data.posY]);
}
break;
case 1:
for (let i = 0; i <= data.type; i++) {
fields.push([data.posX, data.posY + i]);
}
break;
case 2:
for (let i = 0; i <= data.type; i++) {
fields.push([data.posX - i, data.posY]);
}
break;
case 3:
for (let i = 0; i <= data.type; i++) {
fields.push([data.posX, data.posY - i]);
}
break;
}
fields.forEach(field => {
this.getField(field[0], field[1]).children(".shipField").addClass("active");
});
return fields;
}
}