fabio-t / terrain-generator Goto Github PK

• it may have been updated (may 2016) http://webstaff.itn.liu.se/~stegu/simplexnoise/SimplexNoise.java

• it currently does not support any seeding. A simple approach could be to set xmin and ymin to a specific random value instead of zero, when generating a heightmap (of course only if seeding has been requested by the user). This makes it easy to check for boundaries (eg, ymin = xmin = rand.nextInt(0, Float.MAX - Math.max(width, height)) or something like that).

API

TerrainGenerator class. Instantiate, then add some modifiers/constraints (we provide some, user can write others), then finally build() to get a final instance containing all required things. Could work fine.

In general, we'll only support a 2D grid plus heightmap, initially. So the user must specify width and height, if it must be island-shaped or not (it would be great to generalise constraints so that the users can provide their own). Then to make the heightmap we need the usual scale/persistence/lacuness for the noise. Might have to see if I can support a toroidal world (if should be possible for 2D maps with 3D noise).

Finally we should also provide a "threshold" object/map to make a coloured 2D image output.

(we could also have a "lazy generator" where the map is NOT actually created all at the same time, but in blocks when the user asks for it. Not sure we need it though)

App

Lower priority, but: make a command line utility to quickly create a "terrain package" (to be defined what this means). Eg, saving image and heightmap should be enough.