43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
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#include "classicflyinganimationscenario.h"
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#include "classicsprite.h"
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void ClassicFlyingAnimationScenario::launch(const std::shared_ptr<ClassicSprite> sprite, const microsec& time_begin, const microsec &time_end)
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{
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_sprite = sprite;
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_time_begin = time_begin;
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_time_end = time_end;
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_percentage = ((_time_end - _time_begin) * 0.01);
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}
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int ClassicFlyingAnimationScenario::getPoint(float n1, float n2, float perc) const
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{
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float diff = n2 - n1;
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return n1 + ( diff * perc );
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}
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void ClassicFlyingAnimationScenario::update(const microsec& music_offset)
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{
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float i;
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const auto crd = _sprite->coordinates();
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auto update_time = music_offset - _time_begin;
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i = update_time / _percentage * 0.01;
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float xa = getPoint( crd.first + 20. , crd.first + 90. , i );
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float ya = getPoint( crd.second - 600. , crd.second - 150. , i );
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float xb = getPoint( crd.first + 90. , crd.first , i );
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float yb = getPoint( crd.second - 150. , crd.second , i );
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_sprite->update(getPoint( xa , xb , i ), getPoint( ya , yb , i ));
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if (i >= 1)
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{
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_sprite->trailFade();
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}
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}
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bool ClassicFlyingAnimationScenario::isDone() const
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{
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return false;
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}
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