Two screenshots.

First off, you can't rotate a background with draw_background_tiled. However, you can draw anything on a BIG surface, and a surface can be rotated and doubled up.

So, the infinite floor uses a surface, and now it's not chugging so hard. Look at the FPS.

Like I said before, draw_background_tiled_ext() can't do rotation. ...but if I'm not rotating, I can use it without consequence for an infinite floor.

I'm gonna work on a system for the road to constantly spawn objects as I move forward in a sequence.

All this work to get punched in the face.

Trying to do that Infinite Floor thing (technically, it's a trick of the camera), and I think it chugs.

Makes sense, since it's drawing on one surface over and over for each scanline, then putting that on another surface, which puts that on-screen.

Hmm...

Here I am, still trying to push the limits. I'm pretty sure there's a shader for Mode 7 out there, but this is what I've been working with.

Also, because of limitations, red flashing floors generate force fields you can bump into.

I'm getting closer to my goal here.

All these rock piles are gonna loop indefinitely for now. My goal is to make the road widen, tighten, and move side-to-side with the walls.

...and replace the grassy floor with something more fruitcake-like.

So, what's the secret to drawing a car?

1. Just draw the car from profile, back, and possibly front.

2. Dig out any Hot Wheels product for reference.

3. Use the reference to figure out how to draw those in-between angles.

I might have gone too far in a few places, and not enough in others.

A step-by-step process for bigger sprites.

GM Studio 1 works like Windows XP's Paint, but with nicer features. As such, even a lefty like me can learn to draw right-handed with a Line tool.