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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>Telegram Mini Apps Vanilla JS Sample App For Constacts</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<style>
canvas {
border: 1px solid #d3d3d3;
background-color: #f1f1f1;
}
</style>
</head>
<body onload="startGame()">
<div id="viewport"></div>
<div id="viewport-params-size"></div>
<div id="viewport-params-expand"></div>
<script src="https://telegram.org/js/telegram-web-app.js"></script>
<script>
var myGamePiece;
var myObstacles = [];
var myScore;
function startGame() {
myGamePiece = new component(30, 30, "blue", 10, 120);
myGamePiece.gravity = 0.05;
myScore = new component("30px", "Consolas", "black", 280, 40, "text");
myGameArea.start();
}
var myGameArea = {
canvas: document.createElement("canvas"),
start: function () {
this.canvas.width = 480;
this.canvas.height = 270;
this.context = this.canvas.getContext("2d");
document.body.insertBefore(this.canvas, document.body.childNodes[0]);
this.frameNo = 0;
this.interval = setInterval(updateGameArea, 20);
},
clear: function () {
this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
}
}
function component(width, height, color, x, y, type) {
this.type = type;
this.score = 0;
this.width = width;
this.height = height;
this.speedX = 0;
this.speedY = 0;
this.x = x;
this.y = y;
this.gravity = 0;
this.gravitySpeed = 0;
this.update = function () {
ctx = myGameArea.context;
if (this.type == "text") {
ctx.font = this.width + " " + this.height;
ctx.fillStyle = color;
ctx.fillText(this.text, this.x, this.y);
} else {
ctx.fillStyle = color;
ctx.fillRect(this.x, this.y, this.width, this.height);
}
}
this.newPos = function () {
this.gravitySpeed += this.gravity;
this.x += this.speedX;
this.y += this.speedY + this.gravitySpeed;
this.hitBottom();
}
this.hitBottom = function () {
var rockbottom = myGameArea.canvas.height - this.height;
if (this.y > rockbottom) {
this.y = rockbottom;
this.gravitySpeed = 0;
}
}
this.crashWith = function (otherobj) {
var myleft = this.x;
var myright = this.x + (this.width);
var mytop = this.y;
var mybottom = this.y + (this.height);
var otherleft = otherobj.x;
var otherright = otherobj.x + (otherobj.width);
var othertop = otherobj.y;
var otherbottom = otherobj.y + (otherobj.height);
var crash = true;
if ((mybottom < othertop) || (mytop > otherbottom) || (myright < otherleft) || (myleft > otherright)) {
crash = false;
}
return crash;
}
}
function updateGameArea() {
var x, height, gap, minHeight, maxHeight, minGap, maxGap;
for (i = 0; i < myObstacles.length; i += 1) {
if (myGamePiece.crashWith(myObstacles[i])) {
return;
}
}
myGameArea.clear();
myGameArea.frameNo += 1;
if (myGameArea.frameNo == 1 || everyinterval(150)) {
x = myGameArea.canvas.width;
minHeight = 20;
maxHeight = 200;
height = Math.floor(Math.random() * (maxHeight - minHeight + 1) + minHeight);
minGap = 50;
maxGap = 200;
gap = Math.floor(Math.random() * (maxGap - minGap + 1) + minGap);
myObstacles.push(new component(10, height, "green", x, 0));
myObstacles.push(new component(10, x - height - gap, "green", x, height + gap));
}
for (i = 0; i < myObstacles.length; i += 1) {
myObstacles[i].x += -1;
myObstacles[i].update();
}
myScore.text = "SCORE: " + myGameArea.frameNo;
myScore.update();
myGamePiece.newPos();
myGamePiece.update();
}
function everyinterval(n) {
if ((myGameArea.frameNo / n) % 1 == 0) { return true; }
return false;
}
function accelerate(n) {
myGamePiece.gravity = n;
}
</script>
<br>
<button onpointerdown="accelerate(-0.2)" onpointerup="accelerate(0.05)">점프</button>
<button onclick="Telegram.WebApp.openLink('https://constacts.com/');">constacts</button>
<button onclick="Telegram.WebApp.expand();">큰화면으로보기</button>
<button onclick="toggleMainButton();">메인 메뉴</button>
<script>
// Init TWA
Telegram.WebApp.ready();
// Event occurs whenever theme settings are changed in the user's Telegram app (including switching to night mode).
Telegram.WebApp.onEvent('themeChanged', function () {
document.documentElement.className = Telegram.WebApp.colorScheme;
});
// Show main button
Telegram.WebApp.MainButton.setParams({
text: 'Main👀'
});
Telegram.WebApp.MainButton.onClick(function () {
Telegram.WebApp.showAlert('메인 버튼이 눌렸다👀')
});
Telegram.WebApp.MainButton.show();
// Function to call showPopup API
function showPopup() {
Telegram.WebApp.showPopup({
title: 'Title',
message: 'Some message',
buttons: [
{ id: 'link', type: 'default', text: 'Open ton.org' },
{ type: 'cancel' },
]
}, function (btn) {
if (btn === 'link') {
Telegram.WebApp.openLink('https://constacts.com/');
}
});
};
// Function to toggle main TWA button
function toggleMainButton() {
if (Telegram.WebApp.MainButton.isVisible) {
Telegram.WebApp.MainButton.hide();
} else {
Telegram.WebApp.MainButton.show();
}
};
function setViewportData() {
var sizeEl = document.getElementById('viewport-params-size');
sizeEl.innerText = 'width: ' + window.innerWidth + ' x ' +
'height: ' + Telegram.WebApp.viewportStableHeight;
var expandEl = document.querySelector('#viewport-params-expand');
expandEl.innerText = 'Is Expanded: ' + (Telegram.WebApp.isExpanded ? 'true' : 'false');
}
Telegram.WebApp.setHeaderColor('secondary_bg_color');
setViewportData();
Telegram.WebApp.onEvent('viewportChanged', setViewportData);
Telegram.WebApp.onEvent('themeChanged', function () {
document.body.setAttribute('style', '--bg-color:' + Telegram.WebApp.backgroundColor);
});
</script>
<!-- Eruda is console for mobile browsers -->
<script src="https://cdn.jsdelivr.net/npm/eruda"></script>
<script>eruda.init();</script>
</body>
</html>