add quadratic bezier mover

src/yugecin/opsudance/Dancer.java

@@ -33,6 +33,7 @@ import itdelatrisu.opsu.objects.Slider;
 import itdelatrisu.opsu.objects.curves.Vec2f;
 import yugecin.opsudance.movers.LinearMover;
 import yugecin.opsudance.movers.Mover;
+import yugecin.opsudance.movers.QuadraticBezierMover;
 import yugecin.opsudance.movers.factories.*;
 import yugecin.opsudance.movers.slidermovers.DefaultSliderMoverController;
 import yugecin.opsudance.movers.slidermovers.InheritedSliderMoverController;
@@ -55,6 +56,7 @@ public class Dancer {
 		new CenterSpiralMoverFactory(),
 		//new LinearFactory(),
 		new ArcFactory(),
+		new QuadraticBezierMoverFactory(),
 	};
 
 	public static Spinner[] spinners = new Spinner[] {
@@ -131,6 +133,7 @@ public class Dancer {
 		for (Spinner s : spinners) {
 			s.init();
 		}
+		QuadraticBezierMover.reset();
 	}
 
 	public int getSpinnerIndex() {

src/yugecin/opsudance/movers/QuadraticBezierMover.java

@@ -0,0 +1,71 @@
+/*
+ * opsu!dance - fork of opsu! with cursordance auto
+ * Copyright (C) 2016 yugecin
+ *
+ * opsu!dance 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.
+ *
+ * opsu!dance 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 opsu!dance.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package yugecin.opsudance.movers;
+
+import itdelatrisu.opsu.Utils;
+import itdelatrisu.opsu.objects.GameObject;
+
+import java.awt.*;
+
+public class QuadraticBezierMover extends Mover {
+
+	private static Point p;
+	private static double prevspeed;
+
+	public static void reset() {
+		p = new Point(0, 0);
+		prevspeed = 0;
+	}
+
+	private int startTime;
+	private int totalTime;
+
+	public QuadraticBezierMover(GameObject start, GameObject end, int dir) {
+		super(start, end, dir);
+		this.startTime = start.getEndTime();
+		this.totalTime = end.getTime() - startTime;
+
+		double startAngle = Math.atan2(startY - p.y, startX - p.x);
+		double angDiff = Math.atan2(startY - endY, startX - endX) - startAngle;
+		while (angDiff < 0) angDiff += Math.PI;
+		while (angDiff > Math.PI) angDiff -= Math.PI;
+		angDiff -= Math.PI / 2;
+		if (angDiff < 0) angDiff = -angDiff;
+		double dist = Utils.distance(startX, startY, endX, endY);
+		//double speed = dist / 10 + dist * (Math.PI - angDiff) / Math.PI;
+		p.x = (int) (startX + Math.cos(startAngle) * prevspeed);
+		p.y = (int) (startY + Math.sin(startAngle) * prevspeed);
+		prevspeed = (dist / totalTime) * 50;
+	}
+
+	@Override
+	public double[] getPointAt(int time) {
+		double t = (double) (time - startTime) / totalTime;
+		double ct = (1 - t);
+		return new double[] {
+			ct * ct * startX + ct * 2 * t * p.x + t * t * endX,
+			ct * ct * startY + ct * 2 * t * p.y + t * t * endY,
+		};
+	}
+
+	@Override
+	public String getName() {
+		return "Quadratic Bezier";
+	}
+
+}

src/yugecin/opsudance/movers/factories/QuadraticBezierMoverFactory.java

@@ -0,0 +1,36 @@
+/*
+ * opsu!dance - fork of opsu! with cursordance auto
+ * Copyright (C) 2016 yugecin
+ *
+ * opsu!dance 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.
+ *
+ * opsu!dance 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 opsu!dance.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package yugecin.opsudance.movers.factories;
+
+import itdelatrisu.opsu.objects.GameObject;
+import yugecin.opsudance.movers.Mover;
+import yugecin.opsudance.movers.QuadraticBezierMover;
+
+public class QuadraticBezierMoverFactory implements MoverFactory {
+
+	@Override
+	public Mover create(GameObject start, GameObject end, int dir) {
+		return new QuadraticBezierMover(start, end, dir);
+	}
+
+	@Override
+	public String toString() {
+		return "Quadratic bezier";
+	}
+
+}