private void drawObjects()
{
if (!pictureBox1.Focused)
{
pictureBox1.Focus();
}
gr.Clear(Color.White);
Pen pen = new Pen(Color.Black, 1);
if (checkBox5.Checked)
{
int step = trackBar2.Value;
for (int i = 0; i < pictureBox1.Width; i += step)
{
gr.DrawLine(pen, i, 0, i, pictureBox1.Height);
}
for (int k = 0; k < pictureBox1.Height; k += step)
{
gr.DrawLine(pen, 0, k, pictureBox1.Width, k);
}
}
gr.DrawString("SCALE=" + (int)(scale * 100) + "%", new Font(Font, new FontStyle()), new HatchBrush(HatchStyle.Shingle, Color.Black), 0, 0);
if (checkBox3.Checked)
{
int step = trackBar2.Value;
for (int i = 0; i < pictureBox1.Height; i += step)
{
for (int k = 0; k < pictureBox1.Width; k += step)
{
field temp = null;
obj a = new obj(new vector(k, i), new vector(0, 0), 1, true);
foreach (var o in objects)
{
double currForce = gravity(a, o);
vector gravVector = new vector(a.pos.X - o.pos.X, a.pos.Y - o.pos.Y);
double angleX = gravVector.X / gravVector.lenght();
double angleY = gravVector.Y / gravVector.lenght();
a.force.X += currForce * angleX;
a.force.Y += currForce * angleY;
temp = new field(a.pos, a.force);
//Field.Add(temp);
}
pen = new Pen(Color.Green, 1);
if (temp != null)
{
gr.DrawLine(pen, (int)temp.B.X, (int)temp.B.Y,
(int)temp.E.X + (int)temp.B.X, (int)temp.E.Y + (int)temp.B.Y);
}
}
}
//foreach (var field in Field)
//{
//}
}
foreach (var o in objects)
{
try
{
//gr.DrawEllipse(new Pen(Color.Black, 3), (int)o.pos.X - o.mass / 2,
// (int)o.pos.Y - o.mass / 2, o.mass, o.mass);
if (!checkBox4.Checked || (o.texture == null))
{
gr.DrawEllipse(new Pen(Color.Black, 3), (int)o.pos.X - o.mass / 2,
(int)o.pos.Y - o.mass / 2, o.mass, o.mass);
}
else
{
gr.DrawImage(o.texture, (int)o.pos.X - o.mass / 2,
(int)o.pos.Y - o.mass / 2);
}
if (checkBox2.Checked)
{
gr.DrawLine(new Pen(Color.Red, 2), (int)o.pos.X, (int)o.pos.Y,
(int)(o.pos.X + o.speed.X), (int)(o.pos.Y + o.speed.Y));
gr.DrawLine(new Pen(Color.Blue, 2), (int)o.pos.X, (int)o.pos.Y,
(int)(o.pos.X + o.force.X), (int)(o.pos.Y + o.force.Y));
}
if (checkBox1.Checked && o.avalible)
{
gr.DrawString(o.ToString(), Font, new HatchBrush(HatchStyle.Shingle, Color.Black),
(float)o.pos.X + o.mass / 2,
(float)o.pos.Y - o.mass / 2);
}
}
catch (Exception)
{
}
}
pictureBox1.Invalidate();
pictureBox1.Update();
}
public field(vector b, vector e)
{
B = b;
E = e;
}
private void processObjects()
{
objects.RemoveAll(a => !a.avalible);
if (objects.Count == 0)
{
button3_Click(new object(), new EventArgs());
}
Text = objects.Count.ToString();
foreach (var o in objects)
{
vector force = new vector(0, 0);
var another = objects.FindAll(a => a != o);
foreach (var a in another)
{
double currForce = gravity(a, o);
vector gravVector = new vector(a.pos.X - o.pos.X, a.pos.Y - o.pos.Y);
double angleX = gravVector.X / gravVector.lenght();
double angleY = gravVector.Y / gravVector.lenght();
force.X += currForce * angleX;
force.Y += currForce * angleY;
double x = a.pos.X - o.pos.X;
double y = a.pos.Y - o.pos.Y;
double distance = Math.Sqrt(x * x + y * y);
//double modifier = 1.5;
if ((distance <= (a.mass + o.mass) / 2))
{
if (a.mass > o.mass)
{
o.avalible = false;
a.mass += o.mass / 2;
if (a.textureIndex != -1)
{
a.texture = ResizeImg(imgs[a.textureIndex].image, a.mass, a.mass);
}
if (!a.fix)
{
a.speed.X = (o.mass * o.speed.X + a.mass * a.speed.X) / (a.mass + o.mass);
a.speed.Y = (o.mass * o.speed.Y + a.mass * a.speed.Y) / (a.mass + o.mass);
}
}
else
{
a.avalible = false;
o.mass += a.mass / 2;
if (o.textureIndex != -1)
{
o.texture = ResizeImg(imgs[o.textureIndex].image, o.mass, o.mass);
}
if (!o.fix)
{
o.speed.X = (o.mass * o.speed.X + a.mass * a.speed.X) / (a.mass + o.mass);
o.speed.Y = (o.mass * o.speed.Y + a.mass * a.speed.Y) / (a.mass + o.mass);
}
}
}
}
double aX = force.X / o.mass;
double aY = force.Y / o.mass;
if (!o.fix)
{
o.speed.X += aX * trackBar1.Value / 100;
o.speed.Y += aY * trackBar1.Value / 100;
o.pos.X += o.speed.X * trackBar1.Value / 100;
o.pos.Y += o.speed.Y * trackBar1.Value / 100;
}
o.force.X = force.X / 10;
o.force.Y = force.Y / 10;
}
}