/*
* This file is part of Vanilla.
*
* Copyright (c) 2011 Spout LLC <http://www.spout.org/>
* Vanilla is licensed under the Spout License Version 1.
*
* Vanilla 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.
*
* In addition, 180 days after any changes are published, you can use the
* software, incorporating those changes, under the terms of the MIT license,
* as described in the Spout License Version 1.
*
* Vanilla 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,
* the MIT license and the Spout License Version 1 along with this program.
* If not, see <http://www.gnu.org/licenses/> for the GNU Lesser General Public
* License and see <http://spout.in/licensev1> for the full license, including
* the MIT license.
*/
package org.spout.vanilla.render;
import org.spout.api.geo.discrete.Point;
import org.spout.api.render.effect.MeshEffect;
import org.spout.api.render.effect.SnapshotMesh;
public class TallGrassOffsetEffect implements MeshEffect {
@Override
public void preMesh(SnapshotMesh mesh) {
final Point pos = mesh.getPosition();
long hash = pos.getFloorX() * 393443L
^ pos.getFloorY() * 96754111L
^ pos.getFloorZ() * 228329L;
hash *= hash * (hash + 89249651343L);
mesh.setPosition(pos.add(
((hash >> 16 & 0xF) / 15f - 0.5f) * 0.5f,
((hash >> 20 & 0xF) / 15f - 1) * 0.2f,
((hash >> 24 & 0xF) / 15f - 0.5f) * 0.5f));
}
@Override
public void postMesh(SnapshotMesh mesh) {
}
}