public void decrementBonus(final AptitudeBonusView bonus) {
if (!bonus.canBeDecreased()) {
return;
}
final int categoryId = AptitudeCategoryModelManager.INSTANCE.getBonusCategoryId(bonus.getId());
this.m_inventory.addLevel(bonus.getId(), (short) (-1));
this.m_inventory.incPointFor(categoryId);
final short previousValue = this.m_modifications.get(bonus.getId());
if (previousValue == 1) {
this.m_modifications.remove(bonus.getId());
} else {
this.m_modifications.put(bonus.getId(), (short) (previousValue - 1));
}
bonus.fireLevelChanged();
final AptitudeBonusCategoryView category = this.m_categoriesById.get(categoryId);
category.fireAvailablePointsChanged();
}
