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  Mountain outline formula  (Read 651 times)
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Offline hhfjkehfe

Senior Newbie





« Posted 2014-04-24 13:28:07 »

Is there a good formula for generating random mountain outline?
Offline Grunnt

JGO Kernel


Medals: 95
Projects: 8
Exp: 5 years


Complex != complicated


« Reply #1 - Posted 2014-04-24 13:30:23 »

What kind of mountain outline? 2D? 3D? Pixels? Polygons? Think about what you are asking a bit first, we cant blind guess.

Offline hhfjkehfe

Senior Newbie





« Reply #2 - Posted 2014-04-24 13:33:08 »

Sorry.I want to create 2d polygon mountain.
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Offline BurntPizza

« JGO Bitwise Duke »


Medals: 301
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« Reply #3 - Posted 2014-04-24 14:09:48 »

This might be of interest. It's a simple 2D fractal technique using midpoints. Very simple, can tweak to yield good results.
Offline hhfjkehfe

Senior Newbie





« Reply #4 - Posted 2014-04-24 14:55:41 »

Thanks I will use this.
Offline BurntPizza

« JGO Bitwise Duke »


Medals: 301
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« Reply #5 - Posted 2014-04-24 15:08:17 »

Also, as such a terrain is composed of lines, you could use the simple collision technique I showed here should you need collisions.
Offline Grunnt

JGO Kernel


Medals: 95
Projects: 8
Exp: 5 years


Complex != complicated


« Reply #6 - Posted 2014-04-24 16:53:56 »

I successfuly generated mountainous terrain using a simplex noise generator in octaves.

Here's the code for the SimplexNoiseGenerator:
https://bitbucket.org/BasvS/lander/src/316dd5c7ef29108b7d056a846bd58bbe1f16a678/lander/src/nl/grunnt/lib/math/SimplexNoiseGenerator.java?at=master

Here's the actual terrain generation in octaves:
https://bitbucket.org/BasvS/lander/src/316dd5c7ef29108b7d056a846bd58bbe1f16a678/lander/src/nl/grunnt/lander/mission/MissionGenerator.java?at=master

I think the prototype is currently not working, but this generator code works fine.

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