| 1 | package edu.ucsb.cs156.happiercows.strategies; | |
| 2 | ||
| 3 | import edu.ucsb.cs156.happiercows.entities.Commons; | |
| 4 | import edu.ucsb.cs156.happiercows.entities.UserCommons; | |
| 5 | import edu.ucsb.cs156.happiercows.repositories.CommonsRepository; | |
| 6 | import lombok.AllArgsConstructor; | |
| 7 | import lombok.Getter; | |
| 8 | ||
| 9 | /** | |
| 10 | * The CowHealthUpdateStrategies enum provides a variety of strategies for updating cow health. | |
| 11 | * | |
| 12 | * For information on Java enum's, see the Oracle Java Tutorial on <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/enum.html">Enum Types</a>, | |
| 13 | * which are far more powerful in Java than enums in most other languages. | |
| 14 | */ | |
| 15 | ||
| 16 | @Getter | |
| 17 | @AllArgsConstructor | |
| 18 | public enum CowHealthUpdateStrategies implements CowHealthUpdateStrategy { | |
| 19 | ||
| 20 | Linear("Linear", "Cow health increases/decreases proportionally to the number of cows over/under the carrying capacity.") { | |
| 21 | @Override | |
| 22 | public double calculateNewCowHealth(Commons commons, CommonsRepository commonsRepository, UserCommons user, int totalCows) { | |
| 23 |
4
1. calculateNewCowHealth : Replaced integer subtraction with addition → KILLED 2. calculateNewCowHealth : Replaced double multiplication with division → KILLED 3. calculateNewCowHealth : Replaced double subtraction with addition → KILLED 4. calculateNewCowHealth : replaced double return with 0.0d for edu/ucsb/cs156/happiercows/strategies/CowHealthUpdateStrategies$1::calculateNewCowHealth → KILLED |
return user.getCowHealth() - (totalCows - Commons.computeEffectiveCapacity(commons, commonsRepository)) * commons.getDegradationRate(); |
| 24 | } | |
| 25 | }, | |
| 26 | Constant("Constant", "Cow health changes increases/decreases by the degradation rate, depending on if the number of cows exceeds the carrying capacity.") { | |
| 27 | @Override | |
| 28 | public double calculateNewCowHealth(Commons commons, CommonsRepository commonsRepository, UserCommons user, int totalCows) { | |
| 29 |
2
1. calculateNewCowHealth : changed conditional boundary → KILLED 2. calculateNewCowHealth : negated conditional → KILLED |
if (totalCows <= Commons.computeEffectiveCapacity(commons, commonsRepository)) { |
| 30 |
2
1. calculateNewCowHealth : Replaced double addition with subtraction → KILLED 2. calculateNewCowHealth : replaced double return with 0.0d for edu/ucsb/cs156/happiercows/strategies/CowHealthUpdateStrategies$2::calculateNewCowHealth → KILLED |
return user.getCowHealth() + commons.getDegradationRate(); |
| 31 | } else { | |
| 32 |
2
1. calculateNewCowHealth : Replaced double subtraction with addition → KILLED 2. calculateNewCowHealth : replaced double return with 0.0d for edu/ucsb/cs156/happiercows/strategies/CowHealthUpdateStrategies$2::calculateNewCowHealth → KILLED |
return user.getCowHealth() - commons.getDegradationRate(); |
| 33 | } | |
| 34 | } | |
| 35 | }, | |
| 36 | Noop("Do nothing", "Cow health does not change.") { | |
| 37 | @Override | |
| 38 | public double calculateNewCowHealth(Commons commons, CommonsRepository commonsRepository, UserCommons user, int totalCows) { | |
| 39 |
1
1. calculateNewCowHealth : replaced double return with 0.0d for edu/ucsb/cs156/happiercows/strategies/CowHealthUpdateStrategies$3::calculateNewCowHealth → KILLED |
return user.getCowHealth(); |
| 40 | } | |
| 41 | }; | |
| 42 | ||
| 43 | private final String displayName; | |
| 44 | private final String description; | |
| 45 | ||
| 46 | public final static CowHealthUpdateStrategies DEFAULT_ABOVE_CAPACITY = Linear; | |
| 47 | public final static CowHealthUpdateStrategies DEFAULT_BELOW_CAPACITY = Constant; | |
| 48 | } | |
Mutations | ||
| 23 |
1.1 2.2 3.3 4.4 |
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| 29 |
1.1 2.2 |
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| 30 |
1.1 2.2 |
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| 32 |
1.1 2.2 |
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| 39 |
1.1 |