74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
#include "FloatNode.h"
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#include "PackStream.h"
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#include "FloatDiff.h"
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#include "Logs.h"
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#include <sstream>
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#include <cassert>
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FloatNode::FloatNode(DefinitionNode* parent, const std::string &name, double value):
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DefinitionNode(parent, name, "float"), value(value)
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{
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}
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std::string FloatNode::toString(int indent) const
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{
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std::ostringstream stream;
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stream << DefinitionNode::toString(indent) << " " << value;
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return stream.str();
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}
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void FloatNode::save(PackStream *stream) const
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{
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stream->write(&value);
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}
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void FloatNode::load(PackStream *stream)
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{
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stream->read(&value);
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}
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void FloatNode::copy(DefinitionNode *destination) const
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{
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if (destination->getTypeName() == getTypeName())
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{
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((FloatNode *)destination)->value = value;
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}
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else
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{
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Logs::error() << "Can't copy from " << getTypeName() << " to " << destination->getTypeName() << std::endl;
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}
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}
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const FloatDiff *FloatNode::produceDiff(double new_value) const
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{
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return new FloatDiff(value, new_value);
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}
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bool FloatNode::applyDiff(const DefinitionDiff *diff, bool backward)
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{
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if (!DefinitionNode::applyDiff(diff, backward))
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{
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return false;
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}
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assert(diff->getTypeName() == "float");
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const FloatDiff *float_diff = (const FloatDiff *)diff;
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double previous = backward ? float_diff->getNewValue() : float_diff->getOldValue();
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double next = backward ? float_diff->getOldValue() : float_diff->getNewValue();
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if (value == previous)
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{
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value = next;
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return true;
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}
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else
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{
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Logs::error() << "Can't apply float diff " << previous << " => " << next << " to " << getName() << std::endl;
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return false;
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}
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}
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