68 lines
1.9 KiB
Java
68 lines
1.9 KiB
Java
/*
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* opsu!dance - fork of opsu! with cursordance auto
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* Copyright (C) 2016 yugecin
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*
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* opsu!dance 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!dance 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!dance. If not, see <http://www.gnu.org/licenses/>.
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*/
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package yugecin.opsudance.movers;
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import itdelatrisu.opsu.Utils;
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import itdelatrisu.opsu.objects.GameObject;
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public class HalfEllipseMover extends Mover {
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private double middlex;
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private double middley;
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private double radius;
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private double ang;
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private double mod;
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public HalfEllipseMover(GameObject start, GameObject end, int dir) {
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super(start, end, dir);
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middlex = (startX + endX) / 2d;
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middley = (startY + endY) / 2d;
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radius = Utils.distance(middlex, middley, startX, startY);
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ang = Math.atan2(startY - middley, startX - middlex);
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mod = 2d;
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}
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public void setMod(double mod) {
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this.mod = mod;
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}
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@Override
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public double[] getPointAt(int time) {
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double Tangle = Math.PI * getT(time) * dir;
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double x = middlex + Math.cos(Tangle) * radius * mod; // TODO fix this
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double y = middley + Math.sin(Tangle) * radius * mod;
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double dx = middlex - x;
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double dy = middley - y;
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double d = Math.sqrt(dx * dx + dy * dy);
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double a = Math.atan2(dy, dx);
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double my = a - ang;
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return new double[] {
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middlex - Math.cos(my) * d,
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middley - Math.sin(my) * d
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};
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}
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@Override
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public String getName() {
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return "Half ellipse " + mod;
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}
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}
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