Android Open Source - CircleWorldGDX Universe Generator

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Back to project page CircleWorldGDX.

License

The source code is released under:

MIT License

Java Source Code

package com.fdangelo.circleworld.universeengine;
//from  w w w  . j  a  v  a2 s  .  c om
import java.util.Random;

public class UniverseGenerator {
  protected Thing[] things;
  protected Random random;
  protected short thingsAmount;
  protected short currentThing;

  public final short generate(final int seed, final Thing[] things) {
    this.things = things;
    random = new Random(seed);

    things[0].type = ThingType.Galaxy;
    things[0].safeRadius = Short.MAX_VALUE;

    currentThing = 0;
    thingsAmount = 1;

    addGalaxy();

    updateBrothers((short) 0);

    this.things = null;
    random = null;

    return thingsAmount;
  }

  protected void addGalaxy() {

  }

  private final short updateBrothers(short index) {
    final int childs = things[index].childs;
    index++;

    short prevBrother = 0;

    for (int i = 0; i < childs; i++) {
      prevBrother = index;

      index = updateBrothers(index);

      if (i + 1 < childs) {
        things[prevBrother].nextBrother = index;
      }
    }

    return index;
  }

  protected final void pushThing(final short type, final short angle, final short distance, short rotationPeriod, final short orbitalPeriod,
      final short radius, final short safeRadius, final int seed) {

    // TODO: Remove once planet rotations are correctly implemented
    rotationPeriod = 0;

    // TEST
    // orbitalPeriod = 0;

    things[currentThing].childs++;

    things[thingsAmount].parent = currentThing;
    things[thingsAmount].type = type;

    things[thingsAmount].angle = angle;
    things[thingsAmount].distance = distance;
    things[thingsAmount].rotationPeriod = rotationPeriod;
    things[thingsAmount].orbitalPeriod = orbitalPeriod;
    things[thingsAmount].radius = radius;
    things[thingsAmount].safeRadius = safeRadius;
    things[thingsAmount].seed = seed;

    if (orbitalPeriod != 0) {
      things[thingsAmount].orbitalPeriodInv = 1.0f / orbitalPeriod;
    } else {
      things[thingsAmount].orbitalPeriodInv = 0.0f;
    }

    if (rotationPeriod != 0) {
      things[thingsAmount].rotationPeriodInv = 1.0f / rotationPeriod;
    } else {
      things[thingsAmount].rotationPeriodInv = 0.0f;
    }

    currentThing = thingsAmount;
    thingsAmount++;
  }

  protected void popThing() {
    currentThing = things[currentThing].parent;
  }
}

Java Source Code List

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