QuadraticStoryboardMover

src/yugecin/opsudance/sbv2/movers/QuadraticStoryboardMover.java

@@ -0,0 +1,49 @@
+/*
+ * 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.sbv2.movers;
+
+import itdelatrisu.opsu.objects.curves.Vec2f;
+import org.newdawn.slick.Color;
+
+public class QuadraticStoryboardMover extends StoryboardMultipointMover {
+
+	public QuadraticStoryboardMover() {
+		super(Color.magenta, Color.blue);
+	}
+
+	@Override
+	public void setInitialStart(Vec2f start) {
+		super.setInitialStart(start);
+		super.addPoint(new Vec2f((start.x + end.x) / 2, (start.y + end.y) / 2));
+	}
+
+	@Override
+	public float[] getPointAt(float t) {
+		float ct = 1f - t;
+		return new float[] {
+			ct * ct * start.x + ct * 2 * t * getPoint(0).x + t * t * end.x,
+			ct * ct * start.y + ct * 2 * t * getPoint(0).y + t * t * end.y,
+		};
+	}
+
+	@Override
+	public float getLength() {
+		return length;
+	}
+
+}