private Mana getManaTypes(Game game, Ability source) {
List<Permanent> lands =
game.getBattlefield().getActivePermanents(filter, source.getControllerId(), game);
Mana types = new Mana();
for (Permanent land : lands) {
Abilities<ManaAbility> mana = land.getAbilities().getManaAbilities(Zone.BATTLEFIELD);
for (ManaAbility ability : mana) {
if (!ability.equals(source) && ability.definesMana()) {
for (Mana netMana : ability.getNetMana(game)) {
types.add(netMana);
}
}
}
}
return types;
}
@Override
public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
for (Permanent land :
game.getState()
.getBattlefield()
.getAllActivePermanents(new FilterLandPermanent(), source.getControllerId(), game)) {
if (land != null) {
switch (layer) {
case AbilityAddingRemovingEffects_6:
Mana mana = new Mana();
for (Ability ability : land.getAbilities()) {
if (ability instanceof BasicManaAbility) {
for (Mana netMana : ((BasicManaAbility) ability).getNetMana(game)) {
mana.add(netMana);
}
}
}
if (mana.getGreen() == 0 && landTypes.contains("Forest")) {
land.addAbility(new GreenManaAbility(), source.getSourceId(), game);
}
if (mana.getRed() == 0 && landTypes.contains("Mountain")) {
land.addAbility(new RedManaAbility(), source.getSourceId(), game);
}
if (mana.getBlue() == 0 && landTypes.contains("Island")) {
land.addAbility(new BlueManaAbility(), source.getSourceId(), game);
}
if (mana.getWhite() == 0 && landTypes.contains("Plains")) {
land.addAbility(new WhiteManaAbility(), source.getSourceId(), game);
}
if (mana.getBlack() == 0 && landTypes.contains("Swamp")) {
land.addAbility(new BlackManaAbility(), source.getSourceId(), game);
}
break;
case TypeChangingEffects_4:
for (String subtype : landTypes) {
if (!land.getSubtype().contains(subtype)) {
land.getSubtype().add(subtype);
}
}
break;
}
}
}
return true;
}