private void preparePalettes() {
if (oldPalette == null || newPalette == null) {
throw new NullPointerException("Both palettes must be set.");
}
inversePalette = new HashMap<>();
for (int i = 0; i < newPalette.size(); i++) {
inversePalette.put(newPalette.get(i), i);
}
changedColors = ColorHelper.findChangedColors(newPalette, oldPalette);
}
private Grid<Integer> loadPlainImage(
Class resourceLoader, String resourceName, String propertiesName)
throws ResourceMissingException {
Map<String, Integer> mapping = null;
if (propertiesName != null) {
mapping = new HashMap<>();
Properties prop = ResourceUtils.getResourceAsProperties(resourceLoader, propertiesName);
for (String key : prop.stringPropertyNames()) {
String rKey = key;
if (key.startsWith("0x") || key.startsWith("0X")) {
rKey = String.copyValueOf(Character.toChars(Integer.parseInt(key.substring(2), 16)));
}
String what = prop.getProperty(key);
Integer ready;
try {
ready = ColorHelper.makeColor(what);
} catch (InvalidStringFormatException ex) {
throw new RuntimeException(ex);
}
mapping.put(rKey, ready);
}
}
return ResourceUtils.getResourceAsGrid(resourceLoader, resourceName, mapping, false);
}
