dvd standby animation within a canvas in typescript

To create a DVD standby animation within a canvas using TypeScript, you can use the requestAnimationFrame method to create a loop that continuously updates the position of the DVD logo and changes its direction when it hits the edges of the canvas. Here's an example implementation:

index.ts
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');

// set canvas dimensions
canvas.width = 500;
canvas.height = 500;

// load DVD logo image
const dvdLogo = new Image();
dvdLogo.src = 'path/to/dvd/logo.png';

// set initial position and direction of logo
let x = 50;
let y = 50;
let dx = 5;
let dy = 5;

// define animation loop
function animate() {
  // clear canvas
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  
  // draw DVD logo
  ctx.drawImage(dvdLogo, x, y);
  
  // update position of logo
  x += dx;
  y += dy;
  
  // check if logo hits canvas edges
  if (x + dvdLogo.width >= canvas.width || x <= 0) {
    dx = -dx;
  }
  if (y + dvdLogo.height >= canvas.height || y <= 0) {
    dy = -dy;
  }
  
  // call next animation frame
  requestAnimationFrame(animate);
}

// start animation loop
animate();

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This code creates a canvas, loads the DVD logo image, and defines the animation loop using the requestAnimationFrame method. The clearRect method is used to clear the canvas on each frame, and the drawImage method is used to draw the DVD logo at its current position. The animate function updates the position of the logo and checks whether it has hit the edges of the canvas, in which case its direction is changed. Finally, the requestAnimationFrame method is used to call the animate function continuously and create the animation loop.

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related categories

typescript
canvas
dvd standby animation
requestanimationframe
drawimage

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