SpritesMind.Net

Here's a video showing what I mean:

https://www.youtube.com/watch?v=bAfB155 ... e=youtu.be

I am having problems with numbers less than zero in scrolling my road. It works fine scrolling right but when I scroll left and it gets below zero it turns to garbled gfx. Is fix32 positive only or perhaps the problem is with the fix32toint function? What other options are there?

It depends what qualifies as "using" - all tiles are "in use" at all times I guess. Do you want to keep a counter of how many tiles you've uploaded to VRAM, or determine if a specific art asset is going to fit at compile time? I'm from an assembler background so mileage may vary, but my game has a ...

I seem to remember seeing screenshots in one of the threads of an app that gives detailed VDP data but I can't find it. Anyone know where I could get it? Want to keep an eye on my tile count.

r57shell wrote:write equations, how much should be scroll on top of road.
and you'll see your bug.
reason is because you're calculating from bottom.

Looks like you were right. I combined the two into one function and made it less messy and counted through all 224 lines in sequence and it works. Cheers!

write equations, how much should be scroll on top of road. and you'll see your bug. reason is because you're calculating from bottom. Each plane is counting in different directions and meeting in the middle. The numbers are correct and even if they weren't I'm controlling the scrolling of the plane...

So I've checked EVERYTHING and I can't see what's wrong. When I bend my road and leave the sky still, it works properly. My road bends to make a corner and the sky stays still. Sky not scrolling - road bent.png When I scroll the sky but don't bend the road, that also works, I get a straight road and...

alko wrote:Could share code of sprite-scaling from gasega's wolfenstein3d ?

Wouldn't be much use to me as it would all be assembly, wouldn't it?

Well he certainly backs himself! Haha

I tweeted Jon Burton who coded it and he said:

"very trick code for sure. Involving mirrored screens, palette swaps and massive code tables..."

Sounds like a raycasting engine, eh?

There are houses and stuff that scale too and they're not mirrored... I think you're right though. It's very cool. Shame it was the only fun level in the game. lol. EDIT: Just checked it. It's the trucks that aren't mirrored. Everything else seems to be. Trucks could be too with wheels overlaid or s...

Yeah some games use real time scaling, Road Rash is the first coming to mind but Toy Story does it as well and in a very smooth way : https://youtu.be/oWxAWEC4nkk?t=1521 Note the SNES version does not have this level, probably because it couldn't handle it. Toy Story is very impressive on many aspe...

I believe Road Rash had software sprite scaling. Wasn't the smoothest game but it worked well.

I could just update it every ten frames or something. I know it will look jerky but so does swapping out sprites for bigger ones.

Yeah. I think I'll just draw bigger and bigger sprites and 'scale' them in gimp so it will at least look like I'm scaling them. I like the look of the sprites in games like Outrun (arcade version) how they get big and blocky when close. I just need to be careful of tile count as the ground is textur...