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particles start final size

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This commit is contained in:
Henrique Santiago
2011-12-18 00:54:35 -02:00
parent 6973e1639a
commit e3e6770957
5 changed files with 23 additions and 19 deletions
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14
src/framework/graphics/particle.cpp
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@@ -24,14 +24,14 @@
#include "graphics.h"
#include <framework/core/clock.h>
Particle::Particle(const Point& pos, const Size& size, const PointF& velocity, const PointF& acceleration, float duration, float ignorePhysicsAfter, const std::vector<Color>& colors, const std::vector<float>& colorsStops, TexturePtr texture)
Particle::Particle(const Point& pos, const Size& startSize, const Size& finalSize, const PointF& velocity, const PointF& acceleration, float duration, float ignorePhysicsAfter, const std::vector<Color>& colors, const std::vector<float>& colorsStops, TexturePtr texture)
{
m_colors = colors;
m_colorsStops = colorsStops;
m_rect = Rect(pos, size);
m_position = PointF(pos.x, pos.y);
m_size = size;
m_startSize = startSize;
m_finalSize = finalSize;
m_velocity = velocity;
m_acceleration = acceleration;
@@ -65,6 +65,9 @@ void Particle::update(double elapsedTime)
updateColor();
// update size
m_size = m_startSize + (m_finalSize - m_startSize) / m_duration * m_elapsedTime;
// update position
if(m_ignorePhysicsAfter < 0 || m_elapsedTime < m_ignorePhysicsAfter ) {
// update position
@@ -74,10 +77,11 @@ void Particle::update(double elapsedTime)
// update acceleration
m_velocity += m_acceleration * elapsedTime;
m_rect.moveTo((int)m_position.x - m_size.width() / 2, (int)m_position.y - m_size.height() / 2);
}
m_rect.moveTo((int)m_position.x - m_size.width() / 2, (int)m_position.y - m_size.height() / 2);
m_rect.resize(m_size);
m_elapsedTime += elapsedTime;
}