I am working on a cool project where I have created a canvas that displays matrix binary code raining down. However, I would like to enhance it by adding an image overlay on top of the canvas.
Here is my current setup:
<div class="rain">
<canvas id="Matrix"></canvas>
<div class ="imgclass">
<img class="imgclass" src="assets/image.jpg"/>
</div>
</div>
This is the JavaScript code responsible for the animation on the canvas:
const canvas = document.getElementById('Matrix');
const context = canvas.getContext('2d');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
const latin = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
const nums = '0123456789';
const alphabet = latin + nums;
const fontSize = 16;
const columns = canvas.width/fontSize;
const rainDrops = [];
for( let x = 0; x < columns; x++ ) {
rainDrops[x] = 1;
}
const draw = () => {
context.fillStyle = 'rgba(0, 0, 0, 0.05)';
context.fillRect(0, 0, canvas.width, canvas.height);
context.fillStyle = '#0F0';
context.font = fontSize + 'px monospace';
for(let i = 0; i < rainDrops.length; i++)
{
const text = alphabet.charAt(Math.floor(Math.random() * alphabet.length));
context.fillText(text, i*fontSize, rainDrops[i]*fontSize);
if(rainDrops[i]*fontSize > canvas.height && Math.random() > 0.975){
rainDrops[i] = 0;
}
rainDrops[i]++;
}
};
setInterval(draw, 30);
and here's the CSS styling:
.rain {
background: black;
height: 40%;
overflow: hidden;
}
canvas {
background-image: url("assets/img.jpg");
}
The issue I am facing is that the image does not appear on the canvas as intended, instead, it displays below the canvas. I'm looking for a solution to position the image in the middle of the canvas.