one.empty3.apps.opad.Terrain Maven / Gradle / Ivy

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3D rendering engine. Plus modeling. Expected glsl textures 3d and 2d rendering
There is a newer version: 2024.5.10
/*
 * Copyright (c) 2023. Manuel Daniel Dahmen
 *
 *
 *    Copyright 2012-2023 Manuel Daniel Dahmen
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

/*__
 * *
 * Global license :  *
 * CC Attribution
 *
 * author Manuel Dahmen [email protected]_
 *
 **
 */
package one.empty3.apps.opad;

import one.empty3.library.Point2D;
import one.empty3.library.Point3D;
import one.empty3.library.RepresentableConteneur;
import one.empty3.library.core.nurbs.ParametricSurface;

/*__
 *
 * @author Manuel Dahmen [email protected]_
 */
public abstract class Terrain extends RepresentableConteneur {
    protected ParametricSurface ps;
    private Point2D direction;
    private Player player;
    private Game game;
    private double calibrage;
    private boolean isDessineMurs = true;
    private double incrCalcNormale = 0.0001;

    public boolean isDessineMurs()
    {
        return isDessineMurs;
    }
    public void setDessineMurs(boolean b)
    {
        //isDessineMurs = b;
    }
    public Terrain() {
    }


    public Point3D calcNormale(double u, double v)
    {
        Point3D v1 = ps.calculerPoint3D(u+ getaDouble(), v).moins(ps.calculerPoint3D(u, v));
        Point3D v2 = ps.calculerPoint3D(u, v+getaDouble()).moins(ps.calculerPoint3D(u, v));

        return v1.prodVect(v2);
    }

    private double getaDouble() {
        return incrCalcNormale;
    }

    /*__
     * 
     * @param u X-coordonnée [0-1] sur la surface
     * @param v Y-coordonnée [0-1] sur la surface
     * @return 
     */
    public Point3D calcCposition(double u, double v) {
        return ps.calculerPoint3D(u, v);
    }


    public Point3D hauteur(double x, double y, double z)
    {
        return ps.calculerPoint3D(x, y).plus(calcNormale(x, y).norme1().mult(z));

    }
    public Point3D calculerLigneEcoulement(Point3D p3)

    {
        Point3D P = Point3D.O0;

        Point3D N = calcNormale(p3.get(0), p3.get(1));
        Point3D g = calcCposition(p3.get(0), p3.get(1)).moins(calcCposition(0.5, 0.5));
        Point3D forceMotrice = getGame().getLocalPlayer().forceMotrice();

        Point3D toZero = Point3D.INFINI;
        while (toZero.norme() > 0.0001) {
            toZero = N.prodVect(forceMotrice.moins(g).mult(calibrage));

        }
        return P;
    }

    public Point3D p3(Point3D point3D) {
        return hauteur(point3D.getX(), point3D.getY(), point3D.getZ());
    }

    public Game getGame() {
        return game;
    }
}