/*
- * Sixth 3D engine. Copyright ©2012-2016, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
+ * Sixth 3D engine. Copyright ©2012-2018, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 3 of the GNU Lesser General Public License
package eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite;
import eu.svjatoslav.sixth.e3d.geometry.Point3D;
-import eu.svjatoslav.sixth.e3d.geometry.Transform;
+import eu.svjatoslav.sixth.e3d.math.Transform;
import eu.svjatoslav.sixth.e3d.renderer.raster.Color;
-import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.ForwardOrientedTexture;
import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.GlowingPoint;
import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape;
-import eu.svjatoslav.sixth.e3d.renderer.raster.texture.Texture;
+import java.util.ArrayList;
+import java.util.List;
import java.util.Random;
-import java.util.Vector;
+
+import static java.lang.Math.*;
public class Galaxy extends AbstractCompositeShape {
- private Vector<Texture> textures;
+ private static List<Color> colors;
- public Galaxy(final int size, final int tailCount, final int starsCount,
+ public Galaxy(final int galaxySize, final int tailCount, final int starsCount,
Transform transform) {
super(transform);
- Point3D location = new Point3D();
-
- createReusableTextures();
+ ensureColorsAreInitialized();
- final double angle1 = Math.random() * 10;
- final double angle2 = Math.random() * 10;
+ final double angle1 = random() * 10;
+ final double angle2 = random() * 10;
- final double angleSin1 = Math.sin(angle1);
- final double angleCos1 = Math.cos(angle1);
- final double angleSin2 = Math.sin(angle2);
- final double angleCos2 = Math.cos(angle2);
+ final double angleSin1 = sin(angle1);
+ final double angleCos1 = cos(angle1);
+ final double angleSin2 = sin(angle2);
+ final double angleCos2 = cos(angle2);
Random random = new Random();
+ double starSize = galaxySize / 70d;
+
for (int i = 1; i < starsCount; i++) {
- final double b = Math.random() * 10;
+ final double b = random() * 10;
final double s = (b * b) / 30;
- final double v1 = (Math.random() * (11.5 - b)) / 3;
+ final double v1 = (random() * (11.5 - b)) / 3;
final double v1p = v1 / 2;
- final double ane = ((Math.random() * (s / 2)) / tailCount) * 2;
- final double sba = ((2 * Math.PI) / tailCount)
+ final double ane = ((random() * (s / 2)) / tailCount) * 2;
+ final double sba = ((2 * PI) / tailCount)
* random.nextInt(tailCount);
- final double x = (((Math.sin((b - sba) + ane) * s) + (Math.random() * v1)) - v1p)
- * size;
- final double z = (((Math.cos((b - sba) + ane) * s) + (Math.random() * v1)) - v1p)
- * size;
- final double y = ((Math.random() * v1) - v1p) * size;
+ final double x = (((sin((b - sba) + ane) * s) + (random() * v1)) - v1p) * galaxySize;
+ final double z = (((cos((b - sba) + ane) * s) + (random() * v1)) - v1p) * galaxySize;
+ final double y = ((random() * v1) - v1p) * galaxySize;
final double x1 = (x * angleCos1) + (z * angleSin1);
final double z1 = (z * angleCos1) - (x * angleSin1);
final double y1 = (y * angleCos2) + (z1 * angleSin2);
final double z2 = (z1 * angleCos2) - (y * angleSin2);
- final Point3D point3d = new Point3D(x1 + location.x, y1
- + location.y, z2 + location.z);
-
- addStar(point3d);
+ addStar(new Point3D(x1, y1, z2), starSize);
}
}
- public void addStar(final Point3D point3d) {
-
- final Texture texture = textures.get((int) (Math.random() * textures
- .size()));
-
- addShape(new ForwardOrientedTexture(point3d, 10, texture));
+ private void addStar(final Point3D starLocation, double size) {
+ addShape(new GlowingPoint(starLocation, size, colors.get((int) (random() * colors.size()))));
}
- public void createReusableTextures() {
- textures = new Vector<>();
+ private synchronized void ensureColorsAreInitialized() {
+ if (colors != null) return;
- for (int i = 0; i < 30; i++) {
- final GlowingPoint glowingPoint = new GlowingPoint(null, 1,
- new Color(Math.random() + 0.5, Math.random() + 0.5,
- Math.random() + 0.5, 255));
+ colors = new ArrayList<>();
- textures.add(glowingPoint.texture);
-
- }
+ for (int i = 0; i < 30; i++)
+ colors.add(
+ new Color(
+ random() + 0.5,
+ random() + 0.5,
+ random() + 0.5,
+ 255));
}
}