shit math

namespace Project_2___Object_Collisions
{

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        //your code here

        int ReadTextInput(TextBox textBox1, ref double a)
        {

            try
            {
                a = Convert.ToDouble(textBox1.Text);

            }
            catch
            {
                MessageBox.Show("Please enter an integer in each textbox.");
                txtCentreX1.Focus();
                return 1;
            }

            return 0;

        }
        private void btnCheck_Click(object sender, EventArgs e)
        {
            //your code here
            //your code here
            //Read in all 4 points.
            //If using subroutines call them.

            //if no subroutines:
            //For a sphere:
            //Calculate each radius and distance between centres.
            //Check and report based on condition

            //For boxes:
            //Calculate oposite vertexes.
            //Determine max and min for each coordinate of x,y,z (create min and max point which stores the max and min in respective variables.)
            //Output max and mins, check and report on conditions.


            //Boxes input/calc. cp = centerPoint. also cp1,cp2,cp3 are center point of object 1. and cp4,cp5,cp6 are center point of object2.
            // vt = vertex. also vt1,vt2,vt3 = vertex object 1, therefore vt4, vt5, vt6 = vertex object 2.
            // cX = centerX, cY = centerY cZ = centerZ.
            // vCollX = vertex collisionX vCollY = vertex collisionY vCollZ = vertex collisionZ


            BoxesCirclesCheck();

        }

  void BoxesCirclesCheck()
            {
            grpSpheres.Visible = true;
            grpBoxes.Visible = true;
                //   Object 1.            Object 2.

                double cp1, cp2, cp3, cp4, cp5, cp6;
                double vt1, vt2, vt3, vt4, vt5, vt6;

                cp1 = 0; cp2 = 0; cp3 = 0; cp4 = 0; cp5 = 0; cp6 = 0;
                vt1 = 0; vt2 = 0; vt3 = 0; vt4 = 0; vt5 = 0; vt6 = 0;

                //Object 1.
                ReadTextInput(txtCentreX1, ref cp1); ReadTextInput(txtCentreY1, ref cp2); ReadTextInput(txtCentreZ1, ref cp3);
                ReadTextInput(txtVertexX1, ref vt1); ReadTextInput(txtVertexY1, ref vt2); ReadTextInput(txtVertexZ1, ref vt3);
                //Object 2.
                ReadTextInput(txtCentreX2, ref cp4); ReadTextInput(txtCentreX2, ref cp5); ReadTextInput(txtCentreY2, ref cp6);
                ReadTextInput(txtVertexX2, ref vt4); ReadTextInput(txtVertexY2, ref vt5); ReadTextInput(txtVertexZ2, ref vt6);


                double vCollX = secondVertexFunction(cp1, vt1);
                double vCollY = secondVertexFunction(cp2, vt2);
                double vCollZ = secondVertexFunction(cp3, vt3);

                double vColl2X = secondVertexFunction(cp4, vt4);
                double vColl2Y = secondVertexFunction(cp5, vt5);
                double vColl2Z = secondVertexFunction(cp6, vt6);



            //Radius.
            //  vt1 cp1      vt2 cp2    vt3  cp3
            //r^2 = sqroot (x - h)^2 +  (y - k)^2 + (z - p)^2

            double radiusvariable1 = 0;
            double radiusvariable2 = 0;


            double distancevariable = 0;
            double distance;
            double radius1 = radiusFunction(radiusvariable1, cp1, cp2, cp3, vt1, vt2, vt3);
            double radius2 = radiusFunction(radiusvariable2, cp4, cp5, cp6, vt4, vt5, vt6);
            distance = distanceFunction(distancevariable, cp1, cp2, cp3, cp4, cp5, cp6);

            double min;
            double max;
            double min2;
            double max2;



            lblRadius1.Text = "Radius of bounding sphere for object 1 is: " + radius1;
            lblRadius2.Text = "Radius of bounding sphere for object 2 is: " + radius2;
            lblSumOfRadii.Text = "Sum of the two radii is: " + radius1 + radius2;
            lblDistance.Text = "Distance between objects is: " + distance;




        }
  double secondVertexFunction(double cpv, double vtv)
  {
     double newVert;
     newVert = 2 * cpv - vtv;
     return newVert;
  }

  double radiusFunction(double radiusV, double cpX, double cpY, double cpZ, double vtX, double vtY, double vtZ)
  {
     double square = 2;
     radiusV = Math.Pow((vtX - cpX), square) + Math.Pow((vtY - cpY), square) + Math.Pow((vtZ - cpZ) , square);
     return Math.Round(Math.Sqrt(radiusV),2);
  }

  double distanceFunction(double distance, double cpX, double cpY, double cpZ, double cpX2, double cpY2, double cpZ2)
  {
     double square = 2;
     distance = Math.Pow((cpX2- cpX),square) + Math.Pow((cpY2 - cpY), square) + Math.Pow((cpZ2 - cpZ), square);
     return Math.Round(Math.Sqrt(distance),2);
  }

        private void btnClear_Click(object sender, EventArgs e)
        {
            txtCentreX1.Focus();

            txtCentreX1.Text = " ";
            txtCentreX2.Text = " ";
            txtCentreY1.Text = " ";
            txtCentreY2.Text = " ";
            txtCentreZ1.Text = " ";
            txtCentreZ2.Text = " ";
            txtVertexX1.Text = " ";
            txtVertexX2.Text = " ";
            txtVertexY1.Text = " ";
            txtVertexY2.Text = " ";
            txtVertexZ1.Text = " ";
            txtVertexZ2.Text = " ";
            grpSpheres.Text = " ";
            grpBoxes.Text = " ";
            grpSpheres.Visible = false;
            grpBoxes.Visible = false;

        }

    }



}