/* Copyright (c) 2015 Jesper Öqvist <jesper@llbit.se>
*
* This file is part of Chunky.
*
* Chunky is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Chunky 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with Chunky. If not, see <http://www.gnu.org/licenses/>.
*/
package se.llbit.chunky.model;
import se.llbit.chunky.resources.Texture;
import se.llbit.chunky.world.BlockData;
import se.llbit.math.AABB;
import se.llbit.math.Ray;
public class ChorusPlantModel {
private static AABB core = new AABB(4 / 16., 12 / 16., 4 / 16., 12 / 16., 4 / 16., 12 / 16.);
private static AABB[] connector = {new AABB(4 / 16.0, 12 / 16.0, 4 / 16.0, 12 / 16.0, 0, 4 / 16.),
new AABB(4 / 16.0, 12 / 16.0, 4 / 16.0, 12 / 16.0, 12 / 16., 1),
new AABB(12 / 16., 1, 4 / 16.0, 12 / 16.0, 4 / 16.0, 12 / 16.0),
new AABB(0, 4 / 16., 4 / 16.0, 12 / 16.0, 4 / 16.0, 12 / 16.0),
// Above.
new AABB(4 / 16., 12 / 16., 12 / 16.0, 1, 4 / 16.0, 12 / 16.0),
// Below
new AABB(4 / 16., 12 / 16., 0, 4 / 16.0, 4 / 16.0, 12 / 16.0),};
public static boolean intersect(Ray ray) {
boolean hit = false;
ray.t = Double.POSITIVE_INFINITY;
if (core.intersect(ray)) {
Texture.chorusPlant.getColor(ray);
ray.t = ray.tNext;
hit = true;
}
for (int i = 0; i < 6; ++i) {
if (((ray.getCurrentData() >> BlockData.OFFSET) & (1 << i)) != 0) {
if (connector[i].intersect(ray)) {
Texture.chorusPlant.getColor(ray);
ray.t = ray.tNext;
hit = true;
}
}
}
if (hit) {
ray.color.w = 1;
ray.distance += ray.t;
ray.o.scaleAdd(ray.t, ray.d);
}
return hit;
}
}