How to use

Condition

in

mage.abilities.condition

@Override
public boolean checkInterveningIfClause(Game game) {
  if (interveningIfClauseCondition != null) {
    return interveningIfClauseCondition.apply(game, this);
  }
  return true;
}

@Override
public boolean apply(Game game, Ability source) {
  if(!conditionChecked) {
    result = condition.apply(game, source);
    conditionChecked = true;
  }
  return result;
}

@Override
public boolean apply(Game game, Ability source) {
  return !condition.apply(game, source);
}

@Override
public boolean checkInterveningIfClause(Game game) {
  return condition.apply(game, this);
}

@Override
public boolean apply(Game game, Ability source) {
  return conditions.stream().allMatch(condition -> condition.apply(game, source));
}

@Override
public boolean apply(Game game, Ability source) {
  return conditions.stream().anyMatch(condition -> condition.apply(game, source));
}

@Override
public Effects getEffects(Game game, EffectType effectType) {
  if (!condition.apply(game, this)) {
    return emptyEffects;
  }
  return super.getEffects(game, effectType);
}

@Override
public Effects getEffects(Game game, EffectType effectType) {
  if (!condition.apply(game, this)) {
    return emptyEffects;
  }
  return super.getEffects(game, effectType);
}

@Override
public boolean apply(Game game, Ability source) {
  if (condition.apply(game, source)) {
    return applyEffect(game, source);
  }
  return false;
}

@Override
public Effects getEffects(Game game, EffectType effectType) {
  if (!condition.apply(game, this)) {
    return emptyEffects;
  }
  return super.getEffects(game, effectType);
}

@Override
public Effects getEffects(Game game, EffectType effectType) {
  if (!condition.apply(game, this)) {
    return emptyEffects;
  }
  return super.getEffects(game, effectType);
}

@Override
public Effects getEffects(Game game, EffectType effectType) {
  if (!condition.apply(game, this)) {
    return emptyEffects;
  }
  return super.getEffects(game, effectType);
}

@Override
public boolean applies(GameEvent event, Ability source, Game game) {
  if (event.getTargetId().equals(source.getSourceId())) {
    if (condition == null || condition.apply(game, source)) {
      return true;
    }
  }
  return false;
}

@Override
public boolean applies(GameEvent event, Ability source, Game game) {
  // has to return true, if the spell cannot be cast in the current phase / step
  if (event.getSourceId().equals(source.getSourceId())) {
    if (condition != null && !condition.apply(game, source)) {
      return true;
    }
  }
  return false; // cast not prevented by this effect
}

@Override
public boolean applies(Ability abilityToModify, Ability source, Game game) {
  if (abilityToModify.getSourceId().equals(source.getSourceId()) && (abilityToModify instanceof SpellAbility)) {
    return condition.apply(game, source);
  }
  return false;
}

@Override
public boolean applies(Permanent permanent, Ability source, Game game) {
  return permanent.getId().equals(source.getSourceId()) && !condition.apply(game, source);
}

@Override
public ActivationStatus canActivate(UUID playerId, Game game) {
  if (!condition.apply(game, this)) {
    return ActivationStatus.getFalse();
  }
  return super.canActivate(playerId, game);
}

@Override
public Effects getEffects(Game game, EffectType effectType) {
  if (!condition.apply(game, this)) {
    return new Effects();
  }
  return super.getEffects(game, effectType);
}

@Override
public List<Mana> getNetMana(Game game, Ability source) {
  if (condition.apply(game, source)) {
    return effect.getNetMana(game, source);
  } else if (otherwiseEffect != null) {
    return otherwiseEffect.getNetMana(game, source);
  }
  return null;
}

@Override
public boolean applies(GameEvent event, Ability source, Game game) {
  if (((ZoneChangeEvent)event).getToZone() == Zone.GRAVEYARD
      && event.getTargetId().equals(source.getSourceId())) {
    if (condition == null || condition.apply(game, source)) {
      return true;
    }
  }
  return false;
}