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engines/titanic/true_talk/tt_concept_node.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "titanic/true_talk/tt_concept_node.h"
+#include "titanic/true_talk/script_handler.h"
+#include "titanic/titanic.h"
+
+namespace Titanic {
+
+TTconceptNode::TTconceptNode() : _concept0P(_concepts[0]), _concept1P(_concepts[1]),
+		_concept2P(_concepts[2]), _concept3P(_concepts[3]), _concept4P(_concepts[4]),
+		_concept5P(_concepts[5]), _field18(0), _field1C(0), _nextP(nullptr), _status(0) {
+	Common::fill(&_concepts[0], &_concepts[6], (TTconcept *)nullptr);
+}
+
+TTconceptNode::TTconceptNode(const TTconceptNode &src) : _concept0P(_concepts[0]), _concept1P(_concepts[1]),
+		_concept2P(_concepts[2]), _concept3P(_concepts[3]), _concept4P(_concepts[4]),
+		_concept5P(_concepts[5]), _field18(0), _field1C(0), _nextP(nullptr), _status(0) {
+	Common::fill(&_concepts[0], &_concepts[6], (TTconcept *)nullptr);
+
+	if (src._status) {
+		_status = SS_5;
+	} else {
+		for (int idx = 0; idx < 6; ++idx) {
+			if (src._concepts[idx]) {
+				_concepts[idx] = new TTconcept(*src._concepts[idx]);
+				if (!_concepts[idx]->isValid())
+					_status = SS_11;
+			}
+		}
+
+		_field18 = src._field18;
+		_field1C = src._field1C;
+		_nextP = src._nextP;
+	}
+}
+
+void TTconceptNode::deleteSiblings() {
+	// Iterate through the linked chain of nodes, deleting each in turn
+	for (TTconceptNode *curP = _nextP, *nextP = nullptr; nextP; curP = nextP) {
+		nextP = curP->_nextP;
+		delete curP;
+	}
+
+	_nextP = nullptr;
+}
+
+TTconcept **TTconceptNode::setConcept(int conceptIndex, TTconcept *src) {
+	assert(conceptIndex >= 0 && conceptIndex <= 5);
+	TTconcept **conceptPP = &_concepts[conceptIndex];
+
+	if (src) {
+		bool isPronoun = false;
+		StringArray &pronouns = g_vm->_scriptHandler->_parser._pronouns;
+		for (uint idx = 0; idx < pronouns.size() && !isPronoun; ++idx) {
+			isPronoun = pronouns[idx] == src->getText();
+		}
+
+		CScriptHandler &scrHandler = *g_vm->_exeResources._owner;
+		if (!isPronoun) {
+			switch (conceptIndex) {
+			case 0:
+				delete scrHandler._concept2P;
+				scrHandler._concept2P = new TTconcept(*src);
+				break;
+
+			case 1:
+				delete scrHandler._concept4P;
+				scrHandler._concept4P = new TTconcept(*src);
+				break;
+
+			case 2:
+				delete scrHandler._concept1P;
+				scrHandler._concept1P = new TTconcept(*src);
+				break;
+
+			default:
+				break;
+			}
+		}
+	}
+
+	return conceptPP;
+}
+
+int TTconceptNode::replaceConcept(int mode, int conceptIndex, TTconcept *conceptP) {
+	TTconcept **conceptPP = setConcept(conceptIndex, conceptP);
+
+	if (mode == 0 || (mode == 1 && !*conceptPP)) {
+		if (!conceptP || !conceptP->isValid())
+			return SS_5;
+
+		if (mode == 0 && *conceptPP) {
+			delete *conceptPP;
+		}
+
+		*conceptPP = new TTconcept(*conceptP);
+		return (*conceptPP)->isValid() ? SS_VALID : SS_11;
+	} else {
+		return SS_1;
+	}
+}
+
+int TTconceptNode::changeConcept(int mode, TTconcept **conceptPP, int conceptIndex) {
+	TTconcept **newConceptPP = setConcept(conceptIndex, *conceptPP);
+
+	if (mode == 0 || (mode == 1 && !*newConceptPP)) {
+		if (!*conceptPP)
+			return SS_5;
+
+		delete *newConceptPP;
+		*newConceptPP = new TTconcept(**conceptPP);
+		return SS_VALID;
+	} else {
+		return SS_1;
+	}
+}
+
+bool TTconceptNode::createConcept(int mode, int conceptIndex, TTword *word) {
+	TTconcept *newConcept = new TTconcept(word, ST_UNKNOWN_SCRIPT);
+	TTconcept **conceptPP = setConcept(conceptIndex, newConcept);
+
+	if (mode == 0 || (mode == 1 && !*conceptPP)) {
+		delete *conceptPP;
+		*conceptPP = newConcept;
+		return false;
+	} else {
+		delete newConcept;
+		return true;
+	}
+}
+
+} // End of namespace Titanic