Examples with CirclePicker org.terasology.world.viewer.picker.CirclePicker used on opensource projects

Example 1 with CirclePicker

use of org.terasology.world.viewer.picker.CirclePicker in project Terasology by MovingBlocks.

the class TreeFacetLayer method getWorldText.

@Override
public String getWorldText(Region region, int wx, int wy) {
    TreeFacet treeFacet = region.getFacet(TreeFacet.class);
    Region3i worldRegion = treeFacet.getWorldRegion();
    Region3i relativeRegion = treeFacet.getRelativeRegion();
    int rx = wx - worldRegion.minX() + relativeRegion.minX();
    int rz = wy - worldRegion.minZ() + relativeRegion.minZ();
    Vector2f relCursor = new Vector2f(rx, rz);
    CirclePicker<TreeGenerator> picker = new CirclePickerAll<>(relCursor, radiusFunc);
    for (Entry<BaseVector3i, TreeGenerator> entry : treeFacet.getRelativeEntries().entrySet()) {
        TreeGenerator treeGen = entry.getValue();
        BaseVector3i treePos = entry.getKey();
        picker.offer(treePos.getX(), treePos.getZ(), treeGen);
    }
    Set<TreeGenerator> picked = picker.getAll();
    // try to exit early first
    if (picked.isEmpty()) {
        return null;
    }
    if (picked.size() == 1) {
        TreeGenerator first = picked.iterator().next();
        return labelFunc.apply(first);
    }
    // convert to a stream of labels
    Stream<String> labels = picked.stream().map(labelFunc);
    // collect identical String elements and collect the count in a map
    Map<String, Long> counters = labels.collect(Collectors.groupingBy(Function.identity(), Collectors.counting()));
    // define a mapping from a map entry to a String representation
    // TODO: treat 1x occurrences like above (e.g. Tree instead of 1x Tree)
    Function<Entry<String, Long>, String> toStringFunc = e -> String.format("%dx %s", e.getValue(), e.getKey());
    // apply that mapping and join the Strings with a comma
    return counters.entrySet().stream().map(toStringFunc).collect(Collectors.joining(", "));
}