Introducing RayCastWorld

Following on from the now legendary FPS in a command prompt, in this video I demonstrate how to use an olc::PixelGameEngine Extension that handles Ray Cast environments. Specifically it handles the rendering, collision detection and physics of the world's inhabitants, packaged in an easy to use, extremely flexible interface.

[todoz]

you single-handedly got me interested in the more technical, "mathy" aspects of programming. i genuinely thought it was something i wouldn't be able to grasp or learn but your videos made it so much more accessible - thank you sir :).

[Fergobirck]

You have an incredible gift for tutoring.
I've started following you when you had 6k subs and it's great to see how the channel has grown. You deserve it!

[TopShelfization]

reinventing the wheel, simply because you can.

[jacq]

Your tutorials are always really helpful for understanding these concepts. I cannot wait to dive into this one!

[Godmcgod]

You sir are the Bob Ross of programming. Never stop!

[monopoly]

"This is all technology I've covered in two previous videos"
And I wouldn't mind a thousand more

[ManMadeOfGold]

I was just rewatching a lot of your old vids until a few minutes ago, guess I'm not done yet!

[onesketchyguy]

I love/hate how much you trivialized something I fought with for over a week. You're my hero <3

[BudgiePanic]

This channel is really something special, I've studied computer science at university for one year so far, and its fascinating to see so much that I learned about last year, pop up here.
Looking forward to this upcoming networking stuff.

[zerdagdir]

Bisqwit tackled this subject to an extreme level

[doscassette]

Absolutely fantastic. I've been looking for an engine like this to build a retro ARPG and had been messing around with building my own but this saves a ton of time. Absolute legend

[whoshotdk]

I just implemented sprites in my raycaster based on the code from this.

On line 584+, you calculate the screen position of the sprite. It sits inside a double "for" loop.

If you were to define the position variable before the loop, you'd be able to check the Y position is in screen bounds during the Y loop, outside the X loop. If it's out of bounds, simply "continue" the loop, bypassing the X loop entirely.

Probably considered a micro-optimization but it really helped speed things up in my C# implementation!

[boris]

As always, explanations are very clear.
I may have already told you that thanks to your videos & olcGe I came back to programming after a loooong break :) It has become fun again ! Thank you.

[Roanokekidstech]

I made a little ray casting demo in your game engine before and posted it on the discord. It was a fun process, and makes you think a different way. I can’t wait to check out this code.

[wowLinh]

A-MA-ZING. Fantastic video as usual. Big thumbs up!

[yosipshepard]

You are breathtaking!) I'm just trying create my own udp server/client for fps, by using winsock, and there's your videos about networking is comings.)

[spjewkes]

Another great video, David. It really shows off the power of the pixel game engine and what can be achieved with extensions. I really must dust off my old ray casting engine that I wrote (which was inspired by your earlier videos)!

[diarmaidmac]

10 seconds in...my God, you are an amazing programmer!

[cheaterman]

I hope you will in the future make a video (or a series) about some of the internals, possibly the physics system or something? :-) great video and great extension!

[AJSquirrel]

Laughing so much at the creepy archers moving around. This is probably one of your finest creations!