uploaded initial breakout files

This commit is contained in:
Joe James
2019-01-23 15:27:49 -08:00
committed by GitHub
parent bda83ff229
commit 5aa902a597
2 changed files with 37 additions and 0 deletions

32
breakout_2.js Normal file
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var canvas = document.getElementById("myCanvas");
var ctx = canvas.getContext("2d");
var ballRadius = 12;
var x = ballRadius;
var y = ballRadius;
var dx = 2;
var dy = -2;
function drawBall() {
ctx.beginPath();
ctx.arc(x, y, ballRadius, 0, 2 * Math.PI);
ctx.fillStyle = "#FF0000";
ctx.fill();
ctx.closePath();
}
function draw() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
drawBall();
if(x + dx > canvas.width-ballRadius || x + dx < ballRadius) {
dx = -dx;
}
if(y + dy > canvas.height-ballRadius || y + dy < ballRadius) {
dy = -dy;
}
x += dx;
y += dy;
}
setInterval(draw, 10);

5
index.html Normal file
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<canvas id="myCanvas" width="600" height="400"></canvas>
<style>canvas { background: #DAEDEB; }</style>
<script src="breakout_2.js"></script>