Gruntfuggly
Mostly Harmless
Cool - I'll give that a go tonight...
Nelumbo
- Thread starter sol_hsa
- Start date
iprice
Certified Guru
I think I just lost my lunch!
That's an excellent start - really fluid and smooth.
That's an excellent start - really fluid and smooth.
Q
quasist
Guest
I noticed the horizont gliches if it upper that zero line.
Sometimes screen flickers with scaled image of itself
Do you use hardware SDL blitting?
Sometimes screen flickers with scaled image of itself
Do you use hardware SDL blitting?
sol_hsa
Still Fresh
As I mentioned, there's tons of bugs, so don't be picky. =)
http://users.evtek.fi/~jarikom/racetest2.zip
Still no gameplay, track now uses splines, bunch of bug fixes etc.. I'm afraid it'll take a while before this is a game, so don't hold your breath (yet).
http://users.evtek.fi/~jarikom/racetest2.zip
Still no gameplay, track now uses splines, bunch of bug fixes etc.. I'm afraid it'll take a while before this is a game, so don't hold your breath (yet).
sol_hsa
Still Fresh
..main menu done..
sol_hsa
Still Fresh
Have been working on track generation for the past few days..
It's a surprisingly difficult mathematical puzzle, in several parts.
First bit is that the track is generated using splines. In practice I'm using b-splines for the base track as it gives me nice curves. However, if you start form a random bunch of control points, different spline segments get different lengths, and we want to have constant velocity for the whole spline.
So, I ended up re-building the original b-spline by sampling said spline at more-or-less constant velocity (spline segment iterators multiplied by a value based on their lengths), and new control points taken from that. The new spline has 20 times more control points, and is a catmull-rom spline (which goes through the control points, which is nice).
That wasn't quite enough, so that pass is done twice, ending up with 400 times more control points than the original. But while not perfect, it's pretty good.
The second problem is that we can't have too steep curves. This means two control points may not be too close to each other, and the curve angle may not be steeper than 90 degrees. I'm currently just finding these cases and randomizing the point locations again.. eventually it finds a track form that is legal, but it takes a few seconds even on my PC, so I'll probably just precalculate a few hundred tracks or something..
If I didn't mention this before, I'm taking my time with this project, so don't hold your breath. It aint no ludum dare =)
It's a surprisingly difficult mathematical puzzle, in several parts.
First bit is that the track is generated using splines. In practice I'm using b-splines for the base track as it gives me nice curves. However, if you start form a random bunch of control points, different spline segments get different lengths, and we want to have constant velocity for the whole spline.
So, I ended up re-building the original b-spline by sampling said spline at more-or-less constant velocity (spline segment iterators multiplied by a value based on their lengths), and new control points taken from that. The new spline has 20 times more control points, and is a catmull-rom spline (which goes through the control points, which is nice).
That wasn't quite enough, so that pass is done twice, ending up with 400 times more control points than the original. But while not perfect, it's pretty good.
The second problem is that we can't have too steep curves. This means two control points may not be too close to each other, and the curve angle may not be steeper than 90 degrees. I'm currently just finding these cases and randomizing the point locations again.. eventually it finds a track form that is legal, but it takes a few seconds even on my PC, so I'll probably just precalculate a few hundred tracks or something..
If I didn't mention this before, I'm taking my time with this project, so don't hold your breath. It aint no ludum dare =)
iprice
Certified Guru
Looks like it's coming along nicely
gruso
thunderbox
Ran the demo last night, and holy silken underwear Batman! Smooth and sexy even at this early stage.
Take allll the time you want getting this one done.
Take allll the time you want getting this one done.
Iorgy77
emu parasite kid
Looking really great, I loved lotus on the amiga, for some reason it reminds me more of chaseHQ, hint hint...
Unfathomable Depths
sláinte
I'm really looking forward to this. Like Iorgy I love Lotus
- Joined
- Dec 8, 2005
- Messages
- 6,603
- Age
- 40
- Location
- UK
- Website
- pokeparadox.itch.io
- WEBSITE
- https://github.com/pokeparadox
- YOUTUBE
- pokeparadox
Wow nice stuff! Looking cracking already. As usual when I see some original game dev that I like, I hope you will share the source.
Good luck with the project!
Good luck with the project!
sol_hsa
Still Fresh
Considering that I'll be linking to SDL statically, it's pretty much a requirement.. =)PokeParadox said:Wow nice stuff! Looking cracking already. As usual when I see some original game dev that I like, I hope you will share the source.
Good luck with the project!
Last edited by a moderator:
WhiteFalcon
Certified Guru
Just wondering how you are progressing with Nelumbo...
sol_hsa
Still Fresh
Fairly little, been busy graduating and stuff (like http://atanua.org )..WhiteFalcon said:Just wondering how you are progressing with Nelumbo...
Last edited by a moderator:
sol_hsa
Still Fresh
Since this project has officially stalled, I'm posting the source code (as is), so if someone wants to pick it up and poke at it, they got no objection from me. I might continue this project at some point, but no promises.
http://iki.fi/sol/zip/nelumbo_02.zip
http://iki.fi/sol/zip/nelumbo_02.zip
Tag5
Active Member
sol_hsa said:Since this project has officially stalled, I'm posting the source code (as is), so if someone wants to pick it up and poke at it, they got no objection from me. I might continue this project at some point, but no promises.
http://iki.fi/sol/zip/nelumbo_02.zip
Last edited by a moderator:
Magic Sam
Forever Homebrew
Hi,
Any news about this game ? It looked so promising !
Bye, Magic Sam
Any news about this game ? It looked so promising !
Bye, Magic Sam
