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28 changes: 28 additions & 0 deletions
28
src/main/java/org/ladysnake/blabber/impl/common/validation/DialogueLoadingException.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| /* | ||
| * Blabber | ||
| * Copyright (C) 2022-2023 Ladysnake | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 3 of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program; If not, see <https://www.gnu.org/licenses>. | ||
| */ | ||
| package org.ladysnake.blabber.impl.common.validation; | ||
|
|
||
| public class DialogueLoadingException extends RuntimeException { | ||
| public DialogueLoadingException(String message) { | ||
| super(message); | ||
| } | ||
|
|
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| public DialogueLoadingException(String message, Throwable cause) { | ||
| super(message, cause); | ||
| } | ||
| } |
99 changes: 99 additions & 0 deletions
99
src/main/java/org/ladysnake/blabber/impl/common/validation/DialogueValidator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * Blabber | ||
| * Copyright (C) 2022-2023 Ladysnake | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 3 of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program; If not, see <https://www.gnu.org/licenses>. | ||
| */ | ||
| package org.ladysnake.blabber.impl.common.validation; | ||
|
|
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| import org.ladysnake.blabber.impl.common.model.ChoiceResult; | ||
| import org.ladysnake.blabber.impl.common.model.DialogueChoice; | ||
| import org.ladysnake.blabber.impl.common.model.DialogueState; | ||
| import org.ladysnake.blabber.impl.common.model.DialogueTemplate; | ||
|
|
||
| import java.util.ArrayDeque; | ||
| import java.util.ArrayList; | ||
| import java.util.Deque; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
|
|
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| public final class DialogueValidator { | ||
| public static ValidationResult validateStructure(DialogueTemplate dialogue) { | ||
| Map<String, Map<String, Reachability>> parents = new HashMap<>(); | ||
| Deque<String> waitList = new ArrayDeque<>(); | ||
| Map<String, Reachability> unvalidated = new HashMap<>(); | ||
| List<ValidationResult.Warning> warnings = new ArrayList<>(); | ||
|
|
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| for (Map.Entry<String, DialogueState> state : dialogue.states().entrySet()) { | ||
| if (state.getValue().type().equals(ChoiceResult.END_DIALOGUE)) { | ||
| waitList.add(state.getKey()); | ||
| } else if (dialogue.states().get(state.getKey()).choices().isEmpty()) { | ||
| return new ValidationResult.Error.NoChoice(state.getKey()); | ||
| } else { | ||
| unvalidated.put(state.getKey(), Reachability.NONE); | ||
|
|
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| for (DialogueChoice choice : state.getValue().choices()) { | ||
| parents.computeIfAbsent(choice.next(), n -> new HashMap<>()).put( | ||
| state.getKey(), | ||
| choice.condition().isPresent() ? Reachability.CONDITIONAL : Reachability.PROVEN | ||
| ); | ||
| } | ||
| } | ||
| } | ||
|
|
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| while (!waitList.isEmpty()) { | ||
| String state = waitList.pop(); | ||
| Map<String, Reachability> stateParents = parents.get(state); | ||
|
|
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| if (stateParents != null) { | ||
| for (var parent : stateParents.entrySet()) { | ||
| Reachability reachability = unvalidated.get(parent.getKey()); | ||
|
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| if (reachability != null) { // leave it alone if it was already validated through another branch | ||
| if (reachability == Reachability.NONE) { // only check once | ||
| waitList.add(parent.getKey()); | ||
| } | ||
|
|
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| switch (parent.getValue()) { | ||
| case PROVEN -> unvalidated.remove(parent.getKey()); | ||
| case CONDITIONAL -> unvalidated.put(parent.getKey(), Reachability.CONDITIONAL); | ||
| default -> throw new IllegalStateException("Unexpected parent-child reachability " + parent.getValue()); | ||
| } | ||
| } | ||
| } | ||
| } // else, state is unreachable - we log that in the next part | ||
| } | ||
|
|
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| for (var bad : unvalidated.entrySet()) { | ||
| if (!Objects.equals(bad.getKey(), dialogue.start()) && !parents.containsKey(bad.getKey())) { | ||
| // Unreachable states do not cause infinite loops, but we still want to be aware of them | ||
| warnings.add(new ValidationResult.Warning.Unreachable(bad.getKey())); | ||
| } else if (bad.getValue() == Reachability.CONDITIONAL) { | ||
| warnings.add(new ValidationResult.Warning.ConditionalSoftLock(bad.getKey())); | ||
| } else { | ||
| return new ValidationResult.Error.SoftLock(bad.getKey()); | ||
| } | ||
| } | ||
|
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| return warnings.isEmpty() ? ValidationResult.success() : new ValidationResult.Warnings(warnings); | ||
| } | ||
|
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| private enum Reachability { | ||
| NONE, | ||
| CONDITIONAL, | ||
| PROVEN, | ||
| } | ||
| } |
77 changes: 77 additions & 0 deletions
77
src/main/java/org/ladysnake/blabber/impl/common/validation/ValidationResult.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| /* | ||
| * Blabber | ||
| * Copyright (C) 2022-2023 Ladysnake | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 3 of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program; If not, see <https://www.gnu.org/licenses>. | ||
| */ | ||
| package org.ladysnake.blabber.impl.common.validation; | ||
|
|
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| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
|
|
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| public sealed interface ValidationResult { | ||
| static Success success() { | ||
| return Success.INSTANCE; | ||
| } | ||
|
|
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| final class Success implements ValidationResult { | ||
| public static final Success INSTANCE = new Success(); | ||
| } | ||
|
|
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| record Warnings(List<Warning> warnings) implements ValidationResult { | ||
| public String message() { | ||
| return warnings().stream().map(Warning::message).collect(Collectors.joining()); | ||
| } | ||
| } | ||
|
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| sealed interface Warning { | ||
| String state(); | ||
|
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| String message(); | ||
|
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| record Unreachable(String state) implements Warning { | ||
| @Override | ||
| public String message() { | ||
| return state() + " is unreachable"; | ||
| } | ||
| } | ||
|
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| record ConditionalSoftLock(String state) implements Warning { | ||
| @Override | ||
| public String message() { | ||
| return state() + " only has conditional paths to the end of the dialogue"; | ||
| } | ||
| } | ||
| } | ||
|
|
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| sealed interface Error extends ValidationResult { | ||
| String state(); | ||
|
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| String message(); | ||
|
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| record NoChoice(String state) implements Error { | ||
| @Override | ||
| public String message() { | ||
| return state() + " has no available choices but is not an end state"; | ||
| } | ||
| } | ||
|
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| record SoftLock(String state) implements Error { | ||
| @Override | ||
| public String message() { | ||
| return state() + " does not have any path to the end of the dialogue"; | ||
| } | ||
| } | ||
| } | ||
| } |
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