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53 lines
1.0 KiB
C++
53 lines
1.0 KiB
C++
#include "drape_frontend/animation/base_interpolator.hpp"
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#include "drape_frontend/animation/interpolation_holder.hpp"
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#include "base/assert.hpp"
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#include "base/math.hpp"
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#include <algorithm>
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namespace df
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{
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BaseInterpolator::BaseInterpolator(double duration, double delay)
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: m_elapsedTime(0.0)
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, m_duration(duration)
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, m_delay(delay)
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{
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ASSERT(m_duration > 0.0, ());
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InterpolationHolder::Instance().RegisterInterpolator(this);
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}
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BaseInterpolator::~BaseInterpolator()
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{
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InterpolationHolder::Instance().DeregisterInterpolator(this);
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}
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bool BaseInterpolator::IsFinished() const
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{
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return m_elapsedTime > (m_duration + m_delay);
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}
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void BaseInterpolator::Advance(double elapsedSeconds)
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{
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m_elapsedTime += elapsedSeconds;
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}
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double BaseInterpolator::GetT() const
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{
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if (IsFinished())
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return 1.0;
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return std::max(m_elapsedTime - m_delay, 0.0) / m_duration;
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}
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double BaseInterpolator::GetElapsedTime() const
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{
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return m_elapsedTime;
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}
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double BaseInterpolator::GetDuration() const
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{
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return m_duration;
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}
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} // namespace df
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