/*
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 */
package slingshot3.pkg0;
import java.util.*;
import java.text.*;
/**
 *
 * @author GFNVIDIA
 */
public class Slingshot30 {


    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
    double y1 = 1.0;
    double x1 = 0.0;
    double gravity = 9.8;
    double dragCo = 0.40;
    double airDensity = 1.23;
    double CSArea = 0.00426;
    double baseballMass = 0.145;
    double velocity = 23.02;
    double angleNew = Math.toRadians(45.0);
    double totalDisplacement;
    double AR;
    double fricFX;
    double fricFY;
    double gravForce;
    double iniVeloYrads;
    double iniVeloXrads;
    double iniVeloYdeg;
    double iniVeloXdeg;
    double netForceX;
    double netForceY;
    double accelX;
    double accelY;
    double time;
    double finalVeloX;
    double finalVeloY;



    while (y1 > 0){
        //Double massInput = Double.parseDouble(txtMassInput.getText());
        //Double angleInput = Math.toRadians(Double.parseDouble(txtLaunchAngle.getText())); //this is to put degrees to radians... will later be converted back to degrees.
        //angleNew = Math.toRadians(45.0);
        totalDisplacement = 0.0;


        // program begins
        AR = 0.5*(gravity*dragCo*airDensity*CSArea*velocity*velocity);

        fricFX = AR*(Math.cos(angleNew));
        //fricFY = 0.0;

        if (angleNew > 0){
            fricFY = (-1)*AR*(Math.sin(angleNew));
        }
        else if (angleNew < 0){
            fricFY = AR*(Math.sin(angleNew));
        }
        else {
            fricFY = 0;
        }


        ///nonsense starts here

        iniVeloYrads = Math.toDegrees(Math.sin(angleNew)) * velocity;
        iniVeloXrads = Math.toDegrees(Math.cos(angleNew)) * velocity;

        // code is continued down here to convert the velocity with respect to degrees
        //iniVeloYdeg = Math.toDegrees(iniVeloYrads);
        //iniVeloXdeg = Math.toDegrees(iniVeloXrads);

        gravForce = (gravity*baseballMass)*(-1);
        netForceX = fricFX;
        netForceY = fricFY + gravForce;

        //continued
        accelX = netForceX/baseballMass;
        accelY = netForceY/baseballMass;


        time = 1/100;

       //continued
        finalVeloX = iniVeloXrads+(accelX*time);
        finalVeloY = iniVeloYrads+(accelY*time);


        velocity = Math.sqrt((finalVeloX*finalVeloX)+(finalVeloY*finalVeloY));

        x1 =  x1 + (finalVeloX*time + 0.5*accelX*Math.pow(time,2));
        y1 =  y1 + (finalVeloY*time + 0.5*accelY*Math.pow(time,2));

        //totalDisplacement = totalDisplacement+x1;
        angleNew = Math.toDegrees(Math.atan(finalVeloY/finalVeloX));
       System.out.println(y1);




    }
    }

}