DEP_TimedMicroNode.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        DEP_TimedMicroNode.h (DEP Library, C++)
 *
 * COMMENTS:
 */

#ifndef __DEP_TIMEDMICRONODE_H_INCLUDED__
#define __DEP_TIMEDMICRONODE_H_INCLUDED__

#include "DEP_API.h"
#include "DEP_MicroNode.h"
#include <SYS/SYS_Math.h>
#include <SYS/SYS_Types.h>
#include <SYS/SYS_TypeDecorate.h>
#include <float.h>

/// MicroNode that caches the last time it was updated to determine if requires
/// an update.
class DEP_API DEP_TimedMicroNode : public DEP_MicroNode
{
public:
    DEP_TimedMicroNode()
        : myLastUpdateTime(DBL_MAX)
    {
    }

    const char *
    className() const override
    {
        return "DEP_TimedMicroNode";
    }

    bool
    requiresUpdate(fpreal t) const override
    {
        if (DEP_MicroNode::requiresUpdate(t))
            return true;
        return (isTimeDependent() && !isSameTime(t, myLastUpdateTime));
    }

    void
    update(fpreal t) override
    {
        myLastUpdateTime = t;
        if (!isTimeDependent())
            inheritTimeDependentFromExplicitInputs();
        DEP_MicroNode::update(t);
    }

private:
    fpreal      myLastUpdateTime;
};

SYS_DECLARE_LEGACY_TR(DEP_TimedMicroNode)

#endif // __DEP_TIMEDMICRONODE_H_INCLUDED__