private int[][] apply(boolean preview) {
int[][] heightmap = new int[128][128];
int step = 1;
if (!preview) {
parent.setProgressBar(sldIterations.getValue());
heightmap = parent.cloneArray(parent.getHeightMap());
} else {
heightmap = parent.getPreviewMap();
step =
(int)
Math.ceil(
(double) parent.getHeightMap().length / (double) parent.getPreviewMap().length);
}
for (int i = 0; i < sldIterations.getValue() / step; i++) {
heightmap = applyThermal(heightmap);
if (!preview) parent.increaseProgressBar();
}
if (!preview) parent.resetProgressBar();
return heightmap;
}
