Initial commit

engines/wintermute/debugger/watch_instance.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 "watch_instance.h"
+#include "engines/wintermute/base/scriptables/script_value.h"
+#include "engines/wintermute/base/scriptables/debuggable/debuggable_script.h"
+#include "engines/wintermute/debugger/watch.h"
+
+namespace Wintermute {
+
+WatchInstance::WatchInstance(Watch* watch, DebuggableScript* script) : _watch(watch), _script(script), _lastValue(nullptr) {}
+WatchInstance::~WatchInstance() { delete _lastValue; }
+
+void WatchInstance::evaluate() {
+	if (_watch->isEnabled()) {
+		if (!_watch->getFilename().compareTo(_script->_filename)) {
+
+			if(_lastValue == nullptr) {
+				_lastValue = new ScValue(_script->_game);
+				// ^^ This here is NULL by default
+			}
+			ScValue* currentValue = _script->resolveName(_watch->getSymbol());
+			if(ScValue::compare(currentValue, _lastValue, false)) {
+				_lastValue->copy(currentValue);
+				_watch->trigger(this);
+			}
+			delete currentValue;
+		}
+	}
+}
+} // End of namespace Wintermute