78 lines
2.6 KiB
Java
78 lines
2.6 KiB
Java
/*
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* opsu! - an open-source osu! client
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* Copyright (C) 2014, 2015 Jeffrey Han
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*
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* opsu! is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* opsu! is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with opsu!. If not, see <http://www.gnu.org/licenses/>.
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*/
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package itdelatrisu.opsu.objects.curves;
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import itdelatrisu.opsu.ErrorHandler;
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import itdelatrisu.opsu.beatmap.HitObject;
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import java.util.LinkedList;
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import org.newdawn.slick.Color;
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import org.newdawn.slick.SlickException;
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/**
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* Representation of Catmull Curve with equidistant points.
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*
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* @author fluddokt (https://github.com/fluddokt)
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*/
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public class CatmullCurve extends EqualDistanceMultiCurve {
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/**
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* Constructor.
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* @param hitObject the associated HitObject
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* @param color the color of this curve
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*/
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public CatmullCurve(HitObject hitObject, Color color) {
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super(hitObject, color);
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LinkedList<CurveType> catmulls = new LinkedList<CurveType>();
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int ncontrolPoints = hitObject.getSliderX().length + 1;
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LinkedList<Vec2f> points = new LinkedList<Vec2f>(); // temporary list of points to separate different curves
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// repeat the first and last points as controls points
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// only if the first/last two points are different
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// aabb
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// aabc abcc
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// aabc abcd bcdd
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if (getX(0) != getX(1) || getY(0) != getY(1))
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points.addLast(new Vec2f(getX(0), getY(0)));
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for (int i = 0; i < ncontrolPoints; i++) {
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points.addLast(new Vec2f(getX(i), getY(i)));
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if (points.size() >= 4) {
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try {
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catmulls.add(new CentripetalCatmullRom(points.toArray(new Vec2f[0])));
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} catch (SlickException e) {
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ErrorHandler.error(null, e, true);
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}
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points.removeFirst();
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}
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}
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if (getX(ncontrolPoints - 1) != getX(ncontrolPoints - 2) ||
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getY(ncontrolPoints - 1) != getY(ncontrolPoints - 2))
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points.addLast(new Vec2f(getX(ncontrolPoints - 1), getY(ncontrolPoints - 1)));
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if (points.size() >= 4) {
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try {
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catmulls.add(new CentripetalCatmullRom(points.toArray(new Vec2f[0])));
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} catch (SlickException e) {
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ErrorHandler.error(null, e, true);
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}
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}
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init(catmulls);
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}
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}
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