private void Explosion(float[] org)
{
cparticle_t p;
for (int i = 0; i < 256; i++)
{
p = new cparticle_t();
p.time = Time() * 1F;
p.color = 223 - (Lib.Rand() & 7);
for (int j = 0; j < 3; j++)
{
p.org[j] = org[j] + (float)(Lib.Rand() % 32) - 16;
p.vel[j] = (float)(Lib.Rand() % 384) - 192;
}
p.accel[0] = p.accel[1] = 0;
p.accel[2] = -PARTICLE_GRAVITY;
p.alpha = 1F;
p.alphavel = -0.8F / (0.5F + ( float )Globals.rnd.NextDouble() * 0.3F);
active_particles.AddLast(p);
}
}
private void RailTrail(float[] start, float[] end)
{
float[] move = new float[] { 0, 0, 0 };
float[] vec = new float[] { 0, 0, 0 };
float len;
int j;
cparticle_t p;
float dec;
float[] right = new float[] { 0, 0, 0 };
float[] up = new float[] { 0, 0, 0 };
int i;
float d, c, s;
float[] dir = new float[] { 0, 0, 0 };
Math3D.VectorCopy(start, move);
Math3D.VectorSubtract(end, start, vec);
len = Math3D.VectorNormalize(vec);
Math3D.MakeNormalVectors(vec, right, up);
for (i = 0; i < len; i++)
{
p = new cparticle_t();
p.time = Time();
Math3D.VectorClear(p.accel);
d = i * 0.1F;
c = (float)Math.Cos(d);
s = (float)Math.Sin(d);
Math3D.VectorScale(right, c, dir);
Math3D.VectorMA(dir, s, up, dir);
p.alpha = 1F;
p.alphavel = -1F / (1 + ( float )Globals.rnd.NextDouble() * 0.2F);
p.color = 0x74 + (Lib.Rand() & 7);
for (j = 0; j < 3; j++)
{
p.org[j] = move[j] + dir[j] * 3;
p.vel[j] = dir[j] * 6;
}
Math3D.VectorAdd(move, vec, move);
active_particles.Add(p);
}
dec = 0.75F;
Math3D.VectorScale(vec, dec, vec);
Math3D.VectorCopy(start, move);
while (len > 0)
{
len -= dec;
p = new cparticle_t();
p.time = Time();
Math3D.VectorClear(p.accel);
p.alpha = 1F;
p.alphavel = -1F / (0.6F + ( float )Globals.rnd.NextDouble() * 0.2F);
p.color = 0x0 + Lib.Rand() & 15;
for (j = 0; j < 3; j++)
{
p.org[j] = move[j] + Lib.Crand() * 3;
p.vel[j] = Lib.Crand() * 3;
p.accel[j] = 0;
}
Math3D.VectorAdd(move, vec, move);
active_particles.Add(p);
}
}
private void Heatbeam(float[] start, float[] forward)
{
float[] v_up = new float[] { 0, 0, 10 };
float[] v_right = new float[] { 0, 10, 0 };
float[] move = new float[] { 0, 0, 0 };
float[] vec = new float[] { 0, 0, 0 };
float len;
int j;
cparticle_t p;
float[] right = new float[] { 0, 0, 0 };
float[] up = new float[] { 0, 0, 0 };
int i;
float c, s;
float[] dir = new float[] { 0, 0, 0 };
float ltime;
float step = 32F, rstep;
float start_pt;
float rot;
float variance;
float[] end = new float[] { 0, 0, 0 };
Math3D.VectorMA(start, 4096, forward, end);
Math3D.VectorCopy(start, move);
Math3D.VectorSubtract(end, start, vec);
len = Math3D.VectorNormalize(vec);
Math3D.VectorCopy(v_right, right);
Math3D.VectorCopy(v_up, up);
Math3D.VectorMA(move, -0.5F, right, move);
Math3D.VectorMA(move, -0.5F, up, move);
ltime = (float)Time() / 1000F;
start_pt = (ltime * 96F) % step;
Math3D.VectorMA(move, start_pt, vec, move);
Math3D.VectorScale(vec, step, vec);
rstep = (float)Math.PI / 10F;
for (i = (int)start_pt; i < len; i += step)
{
if (i > step * 5)
{
break;
}
for (rot = 0; rot < Math.PI * 2; rot += rstep)
{
p = new cparticle_t();
p.time = Time();
Math3D.VectorClear(p.accel);
variance = 0.5F;
c = (float)Math.Cos(rot) * variance;
s = (float)Math.Sin(rot) * variance;
if (i < 10)
{
Math3D.VectorScale(right, c * (i / 10F), dir);
Math3D.VectorMA(dir, s * (i / 10F), up, dir);
}
else
{
Math3D.VectorScale(right, c, dir);
Math3D.VectorMA(dir, s, up, dir);
}
p.alpha = 0.8F;
p.alphavel = -1000F;
p.color = 0x74 - (Lib.Rand() & 7);
for (j = 0; j < 3; j++)
{
p.org[j] = move[j] + dir[j] * 3;
p.vel[j] = 0;
}
active_particles.Add(p);
}
Math3D.VectorAdd(move, vec, move);
}
}
