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#include "stdafx.h"
#include "GuiParticle.h"
#include "..\Minecraft.World\Random.h"
Random *GuiParticle::random = new Random();
GuiParticle::GuiParticle(double x, double y, double xa, double ya)
{
// 4J - added initialisation block
removed = false;
life = 0;
a = 1;
oR = oG = oB = oA = 0;
this->xo = this->x = x;
this->yo = this->y = y;
this->xa = xa;
this->ya = ya;
int col = Color::HSBtoRGB(random->nextFloat(), 0.5f, 1);
r = ((col >> 16) & 0xff) / 255.0;
g = ((col >> 8) & 0xff) / 255.0;
b = ((col) & 0xff) / 255.0;
friction = 1.0 / (random->nextDouble() * 0.05 + 1.01);
lifeTime = static_cast<int>(10.0 / (random->nextDouble() * 2 + 0.1));
}
void GuiParticle::tick(GuiParticles *guiParticles)
{
x += xa;
y += ya;
xa *= friction;
ya *= friction;
ya += 0.1;
if (++life > lifeTime) remove();
a = 2 - (life / static_cast<double>(lifeTime)) * 2;
if (a > 1) a = 1;
a = a * a;
a *= 0.5;
}
void GuiParticle::preTick()
{
oR = r;
oG = g;
oB = b;
oA = a;
xo = x;
yo = y;
}
void GuiParticle::remove()
{
removed = true;
}
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