Method DiminishingTrail

client/src/main/java/jake2/client/CL_fx.java:1406–1482

(float[] start, float[] end, centity_t old, int flags)

	 * ===============
	 */
	static void DiminishingTrail(float[] start, float[] end, centity_t old, int flags) {
		cparticle_t p;
		float orgscale;
		float velscale;

		Math3D.VectorCopy(start, move);
		Math3D.VectorSubtract(end, start, vec);
		float len = Math3D.VectorNormalize(vec);

		float dec = 0.5f;
		Math3D.VectorScale(vec, dec, vec);

		if (old.trailcount > 900) {
			orgscale = 4;
			velscale = 15;
		} else if (old.trailcount > 800) {
			orgscale = 2;
			velscale = 10;
		} else {
			orgscale = 1;
			velscale = 5;
		}

		while (len > 0) {
			len -= dec;

			if (free_particles == null)
				return;

			// drop less particles as it flies
			if ((Lib.rand() & 1023) < old.trailcount) {
				p = free_particles;
				free_particles = p.next;
				p.next = active_particles;
				active_particles = p;
				Math3D.VectorClear(p.accel);

				p.time = ClientGlobals.cl.time;

				if ((flags & Defines.EF_GIB) != 0) {
					p.alpha = 1.0f;
					p.alphavel = -1.0f / (1.0f + Globals.rnd.nextFloat() * 0.4f);
					p.color = 0xe8 + (Lib.rand() & 7);
					for (int j = 0; j < 3; j++) {
                        p.org[j] = move[j] + Lib.crandom() * orgscale;
                        p.vel[j] = Lib.crandom() * velscale;
						p.accel[j] = 0;
					}
					p.vel[2] -= PARTICLE_GRAVITY;
				} else if ((flags & Defines.EF_GREENGIB) != 0) {
					p.alpha = 1.0f;
					p.alphavel = -1.0f / (1.0f + Globals.rnd.nextFloat() * 0.4f);
					p.color = 0xdb + (Lib.rand() & 7);
					for (int j = 0; j < 3; j++) {
                        p.org[j] = move[j] + Lib.crandom() * orgscale;
                        p.vel[j] = Lib.crandom() * velscale;
						p.accel[j] = 0;
					}