63 lines
1.9 KiB
Java
63 lines
1.9 KiB
Java
package ma2tetr.impl;
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import java.util.HashSet;
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import java.util.Set;
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import ma2tetr.api.ITetrahedronCoordCalculator;
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import ma2tetr.invariant.RadiusInvariant;
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import ma2tetr.invariant.TetrahedronInvariant;
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import ma2tetr.model.Coords3D;
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import ma2tetr.model.Point3D;
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import ma2tetr.model.Tetrahedron;
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import ma2tetr.model.Vector3D;
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public class TetrahedronMovingCalculator implements ITetrahedronCoordCalculator {
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private double radius = 1.0;
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private Tetrahedron tetrahedron = null;
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@Override
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public void setRadius(double radius) {
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this.radius = radius;
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}
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@Override
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public void calculate() {
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Coords3D center = new Vector3D(0, 0, 0);
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Point3D top = new Point3D(0, radius, 0);
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TriangleBaseMover triangle = new TriangleBaseMover(radius);
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triangle.move(-radius);
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Set<Coords3D> points = new HashSet<>();
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points.add(top);
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points.add(triangle.getP1());
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points.add(triangle.getP2());
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points.add(triangle.getP3());
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RadiusInvariant rinv = new RadiusInvariant(points, center, radius);
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TetrahedronInvariant tinv = new TetrahedronInvariant(top, triangle.getP1(), triangle.getP2(), triangle.getP3());
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double scaling = radius / 10;
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while(true) {
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triangle.move(scaling);
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if (!rinv.isFulfilled()) {
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throw new RuntimeException("Unexpected error");
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} else if (tinv.isFulfilled()) {
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break;
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} else if (tinv.firstDifference() < 0) {
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triangle.move(-scaling);
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scaling = scaling / 10;
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}
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}
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tetrahedron = new Tetrahedron(top, triangle.getP1(), triangle.getP2(), triangle.getP3());
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}
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@Override
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public Tetrahedron getTetrahedron() {
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return this.tetrahedron;
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}
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@Override
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public double getRadius() {
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return this.radius;
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}
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}
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