4jcraft/Minecraft.Client/Rendering/Particles/HeartParticle.cpp

#include "../../Platform/stdafx.h"
#include "HeartParticle.h"

// 4J - added
void HeartParticle::init(Level* level, double x, double y, double z, double xa,
                         double ya, double za, float scale) {
    xd *= 0.01f;
    yd *= 0.01f;
    zd *= 0.01f;
    yd += 0.1;

    size *= 0.75f;
    size *= scale;
    oSize = size;

    lifetime = 16;
    noPhysics = false;

    setMiscTex(16 * 5);
}

HeartParticle::HeartParticle(Level* level, double x, double y, double z,
                             double xa, double ya, double za)
    : Particle(level, x, y, z, 0, 0, 0) {
    init(level, x, y, z, xa, ya, za, 2);
}

HeartParticle::HeartParticle(Level* level, double x, double y, double z,
                             double xa, double ya, double za, float scale)
    : Particle(level, x, y, z, 0, 0, 0) {
    init(level, x, y, z, xa, ya, za, scale);
}

void HeartParticle::render(Tesselator* t, float a, float xa, float ya, float za,
                           float xa2, float za2) {
    float l = ((age + a) / lifetime) * 32;
    if (l < 0) l = 0;
    if (l > 1) l = 1;

    size = oSize * l;
    Particle::render(t, a, xa, ya, za, xa2, za2);
}

void HeartParticle::tick() {
    xo = x;
    yo = y;
    zo = z;

    if (age++ >= lifetime) remove();

    move(xd, yd, zd);
    if (y == yo) {
        xd *= 1.1;
        zd *= 1.1;
    }
    xd *= 0.86f;
    yd *= 0.86f;
    zd *= 0.86f;

    if (onGround) {
        xd *= 0.7f;
        zd *= 0.7f;
    }
}