Pseudo 3d with Raycasting

Very much thanks to R0J0hound for the example I finally got some time to look at it break it apart and learn how it was done and tinker with it. This is the result so far =D

dl.dropbox.com/u/53012532/RaycastTest/index.html

Press F to do fullscreen

EDIT: New version up at the same link based on the 2nd example from R0J0hound

If it loads with the walls really low on the screen thats cause of rescaling the layout just reload it and it should be fine.

This one runs for me at 30 fps I can make it run at 60+ fps but it looks way worse

Holy Moley! That is fantastic. Make an fps with C2 now!

This is amazing maaaan! keep working on this man. Be sure, there will be thousand of people who will use it. HOLY COW!

it works pretty well but I have no idea how it could support textured walls. Is there any way to draw a specific part of a texture at a specific location?

Fantastic work, keep the work up :)

It can grow out to be something big easily.

Textured walls won't work at the moment as C2 doesn't support sprite perspective distortions.

@sqiddster - R0j0hound laughs at the fact that C2 can't do textured walls, and makes it do them anyway.

R0j0hound can even do what can't be done... dang.

wow the first example I figured out pretty quickly... this 2nd one tho... man I have no clue lol

The second one looks like it uses a thin texture slice, then creates a lot of sprites to represent each wall from them before scaling them to how close they should appear.

Is that about right R0J0hound?

Edit: Ah, just saw that each slice sprite also has 64 frames, to make up the different textures per sprite too.

yeah I think Ive about got it figured out just have to do some more tinkering heh

Yeah, think of it as if you were to draw the wall 1 pixel at a time.

Just instead of drawing a line from left to right, you draw it from top to bottom.

yeah I figured it out. Bout to edit the first post for the new demo version

Jayjay

I split everything up into vertical slices: screen and textures. Then with a bit of math I calculate what texture slice to use for a screen slice.

aridale

It's good to hear that you're getting 30fps. I only get 5-12fps on my rig. I may be able get a speedup by going back to 90 degree walls on a grid.

I dont think its so much the angles as it is the number of slices. I think you noticed in your 3rd example that 1 pixel slices are way too much overhead. I use 2 in both my examples and with 4 it runs at 60+ fps the problem is then the wall slices are wide enough you start seeing the jagged sides on angles