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136 lines (120 loc) · 4.65 KB
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Copy pathapp.js
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136 lines (120 loc) · 4.65 KB
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document.addEventListener("DOMContentLoaded", () => {
const squares = document.querySelectorAll(".grid div");
const resultDisplay = document.querySelector("#result");
let width = 15;
let currentShooterIndex = 202;
let currentInvaderIndex = 0;
let alienInvadersTakenDown = [];
let result = 0;
let direction = 1;
let invaderId;
const alienInvaders = [
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
30, 31, 32, 33, 34, 35, 36, 37, 38, 39
];
alienInvaders.forEach((invader) =>
squares[currentInvaderIndex + invader].classList.add("invader")
);
squares[currentShooterIndex].classList.add("shooter");
function moveShooter(e) {
squares[currentShooterIndex].classList.remove("shooter");
switch (e.keyCode) {
case 37:
if (currentShooterIndex % width !== 0) {
currentShooterIndex -= 1;
}
break;
case 65:
if (currentShooterIndex % width !== 0) {
currentShooterIndex -= 1;
}
break;
case 39:
if (currentShooterIndex % width < width - 1) {
currentShooterIndex += 1;
}
break;
case 68:
if (currentShooterIndex % width < width - 1) {
currentShooterIndex += 1;
}
break;
}
squares[currentShooterIndex].classList.add("shooter");
}
document.addEventListener("keydown", moveShooter);
function moveInvader() {
const leftEdge = alienInvaders[0] % width === 0
const rightEdge = alienInvaders[alienInvaders.length - 1] % width === width - 1;
if ((leftEdge && direction === -1) || (rightEdge && direction === 1)) {
direction = width;
}
else if (direction === width) {
if (leftEdge) direction = 1;
else direction = -1;
}
for (let i = 0; i <= alienInvaders.length - 1; i++) {
squares[alienInvaders[i]].classList.remove("invader")
}
for (let i = 0; i <= alienInvaders.length - 1; i++) {
alienInvaders[i] += direction;
}
for (let i = 0; i <= alienInvaders.length - 1; i++) {
if (!alienInvadersTakenDown.includes(i)) {
squares[alienInvaders[i]].classList.add("invader")
}
}
if (squares[currentShooterIndex].classList.contains("invader", "shooter")) {
resultDisplay.textContent = "Game-Over"
squares[currentShooterIndex].classList.add("boom")
clearInterval(invaderId)
}
for (let i = 0; i <= alienInvaders.length - 1; i++) {
if (alienInvaders[i] > (squares.length - (width - 1))) {
resultDisplay.textContent = "Game-Over";
clearInterval(invaderId)
}
}
if (alienInvadersTakenDown.length === alienInvaders.length) {
resultDisplay.textContent = "Winner"
clearInterval(invaderId)
}
}
invaderId = setInterval(moveInvader, 500)
function shoot(e) {
let laserId
let currentLaserIndex = currentShooterIndex
function moveLaser() {
squares[currentLaserIndex].classList.remove("laser")
currentLaserIndex -= width;
squares[currentLaserIndex].classList.add('laser')
if (squares[currentLaserIndex].classList.contains("invader")) {
squares[currentLaserIndex].classList.remove('laser')
squares[currentLaserIndex].classList.remove('invader')
squares[currentLaserIndex].classList.add('boom')
setTimeout(() => squares[currentLaserIndex].classList.remove('boom'), 250)
clearInterval(laserId)
const alienTakenDown = alienInvaders.indexOf(currentLaserIndex)
alienInvadersTakenDown.push(alienTakenDown)
result++
resultDisplay.textContent = result
}
if (currentLaserIndex < width) {
clearInterval(laserId)
setTimeout(() => squares[currentLaserIndex].classList.remove('laser'), 100)
}
}
// document.addEventListener("Keyup", e => {
// if (e.keyCode === 32) {
// laserId = setInterval(moveLaser, 100)
// }
// })
switch (e.keyCode) {
case 32:
laserId = setInterval(moveLaser, 100)
break;
}
}
document.addEventListener("keyup", shoot)
});