Files
test2/source/blender/simulation/intern/time_interval.hh
Jacques Lucke 766edbdf1f Particles: improve mesh emitter
Particles are now emitted from vertices of the mesh.
2020-07-23 17:57:11 +02:00

58 lines
1.4 KiB
C++

/*
* 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 2
* 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, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __SIM_TIME_INTERVAL_HH__
#define __SIM_TIME_INTERVAL_HH__
#include "BLI_utildefines.h"
namespace blender::sim {
/**
* The start time is exclusive and the end time is inclusive. If the duration is zero, the interval
* describes a single point in time.
*/
class TimeInterval {
private:
float start_;
float duration_;
public:
TimeInterval(float start, float duration) : start_(start), duration_(duration)
{
BLI_assert(duration_ >= 0.0f);
}
float start() const
{
return start_;
}
float end() const
{
return start_ + duration_;
}
float duration() const
{
return duration_;
}
};
} // namespace blender::sim
#endif /* __SIM_TIME_INTERVAL_HH__ */