se.llbit.chunky.model.DaylightSensorModel Maven / Gradle / Ivy

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Minecraft mapping and rendering tool

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/* Copyright (c) 2013 Jesper Öqvist 
 *
 * 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 .
 */
package se.llbit.chunky.model;

import se.llbit.chunky.resources.Texture;
import se.llbit.math.AABB;
import se.llbit.math.Ray;

public class DaylightSensorModel {
  private static AABB block = new AABB(0, 1, 0, 6 / 16., 0, 1);

  public static boolean intersect(Ray ray) {
    ray.t = Double.POSITIVE_INFINITY;
    if (block.intersect(ray)) {
      if (ray.n.y > 0) {
        Texture.daylightDetectorTop.getColor(ray);
      } else {
        Texture.daylightDetectorSide.getColor(ray);
      }
      ray.color.w = 1;
      ray.distance += ray.tNext;
      ray.o.scaleAdd(ray.tNext, ray.d);
      return true;
    }
    return false;
  }
}