Add get_noise_1d() to OpenSimplexNoise

[Shadowblitz16]

Godot version: 3.1 beta 8
Windows 7 home 64 bit

Please add get_noise_1d() to OpenSimplexNoise.
Also please give us the equivalent all the noise get functions that return 0-1 range instead of -1-1.

[psuhas77]

Hey, I want to try working on this. The simplest solution would be to create get_noise_1d(float x) which simply returns get_noise_2d(float x,float fixedValue) Is there some reason why this would be problematic?

[akien-mga]

CC @JFonS

[psuhas77]

So, this is what I got after using get_noise_2d(float x,float(1)) with default octaves,lacunarity,persistence and period. Each frame represents a different seed. It seems to behave like 1D Simplex noise should.

[Chaosus]

Yeah, its simply noise2D(x, 1.0), and its not very useful for SimplexNoises as described in jwagner/simplex-noise.js#16
But its a good PR training for @psuhas77 - you could easily implement this if you want :)