camera

Alright, alright. I know this isn’t rendering text to the grid. I know this isn’t “according to plan”! But… We need to walk with sprites in a 3d world before we can run with beautiful ASCII art in a 3d world. It turns out that Bevy does not make it easy to render text or sprites using a 3d camera. So we’ll need to get that working, and we’ll add a little extra embellishment as well.

In the last article we built a camera that can move around our grid, rotate, and zoom in and out. The camera works pretty well, but we need to make sure its movement isn’t tied to the frame rate. While we’re improving this code, we should also place bounds on the camera to keep it attached to the grid. Smoothing Zoom Let’s start by smoothing the zoom function. In order to do this, we need to change our zoom_level parameter to be a f32 instead of a usize.

In the last article we were able to render rather large grids. In most games with large grids, you can zoom in and out of the grid, rotate the camera, and move the camera around. At this point, we should be able to render a grid that looks like the one below. If you don’t see this on your screen, then download the code for the previous post and start from there.