/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.client.render.effects;


import java.util.Random;

import net.minecraft.world.World;


public class LightningArcFX extends LightningFX
{
	private static final Random RANDOM_GENERATOR = new Random();

	private final double rx;
	private final double ry;
	private final double rz;

	public LightningArcFX( final World w, final double x, final double y, final double z, final double ex, final double ey, final double ez, final double r, final double g, final double b )
	{
		super( w, x, y, z, r, g, b, 6 );

		this.rx = ex - x;
		this.ry = ey - y;
		this.rz = ez - z;

		this.regen();
	}

	@Override
	protected void regen()
	{
		final double i = 1.0 / ( this.getSteps() - 1 );
		final double lastDirectionX = this.rx * i;
		final double lastDirectionY = this.ry * i;
		final double lastDirectionZ = this.rz * i;

		final double len = Math.sqrt( lastDirectionX * lastDirectionX + lastDirectionY * lastDirectionY + lastDirectionZ * lastDirectionZ );
		for( int s = 0; s < this.getSteps(); s++ )
		{
			final double[][] localSteps = this.getPrecomputedSteps();

			localSteps[s][0] = ( lastDirectionX + ( RANDOM_GENERATOR.nextDouble() - 0.5 ) * len * 1.2 ) / 2.0;
			localSteps[s][1] = ( lastDirectionY + ( RANDOM_GENERATOR.nextDouble() - 0.5 ) * len * 1.2 ) / 2.0;
			localSteps[s][2] = ( lastDirectionZ + ( RANDOM_GENERATOR.nextDouble() - 0.5 ) * len * 1.2 ) / 2.0;
		}
	}
}