Method RailTrail

fullgame/src/test/java/jake2/fullgame/TestMap.java:370–445

(float[] start, float[] end)

	}
	
	private void RailTrail(float[] start, float[] end)
	{
		float[] move = {0, 0, 0};
		float[] vec = {0, 0, 0};
		float	len;
		int j;
		cparticle_t	p;
		float	dec;
		float[] right = {0, 0, 0};
		float[] up = {0, 0, 0};
		int i;
		float	d, c, s;
		float[] dir = {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 = 1.0f;
			p.alphavel = -1.0f / (1 + Globals.rnd.nextFloat() * 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();