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#include "explosion.h"
#include "config.h"
#include <cstdlib>
/*
* Explosion
*/
Explosion::Explosion(Coord pos, Coord speed, XColor color, int duration)
: color_ (color)
, moves_ (0)
, duration_(duration)
{
const int nb_dots (Config::Instance().ScaleDetails(16 * duration));
dots_.reserve(nb_dots);
dots_speed_.reserve(nb_dots);
for (int i (0); i < nb_dots; ++i) {
using std::rand;
const Coord particle (rand() % 16 + rand() % 16 - 16,
rand() % 16 + rand() % 16 - 16);
dots_.push_back(particle + pos);
Coord particle_speed (particle / 4 + speed);
particle_speed += Coord(rand() % 5 - 2, rand() % 5 - 2);
dots_speed_.push_back(particle_speed);
}
XColor close_color = color_;
X11::Inst().AllocColorAlways(&close_color);
DrawAll(close_color.pixel);
}
void Explosion::Move()
{
if (moves_ < duration_) {
++moves_;
DrawAll(X11::Inst().GetBlack());
if (moves_ < duration_) {
for (dotsCtn::size_type i (0); i < dots_.size(); ++i) {
dots_[i] += dots_speed_[i];
}
color_.red = color_.red * 98 / 100;
color_.green = color_.green * 96 / 100;
color_.blue = color_.blue * 96 / 100;
if (color_.red < 48*1024 && color_.red > 36*1024) {
color_.red = color_.red * 96 / 100;
color_.green = color_.green * 92 / 100;
color_.blue = color_.blue * 92 / 100;
}
XColor close_color = color_;
X11::Inst().AllocColorAlways(&close_color);
DrawAll(close_color.pixel);
}
}
}
void Explosion::DrawAll(X11::Color color) const
{
X11::Inst().SetForeground(color);
X11::Inst().SetClipMask(None);
X11::Inst().DrawPoints(&dots_[0], dots_.size());
}
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