void DDA(Figure c1, Figure c2, Color color, int R, int parpadeo, PictureBox pb)
{
float r1 = c1.R + R / 2, r2 = c2.R + R / 2;
int x1 = c1.X, y1 = c1.Y, x2 = c2.X, y2 = c2.Y;
float ax, ay, x, y, res, i = 0, distanceLineActual;
if (Math.Abs(x2 - x1) >= Math.Abs(y2 - y1))
{
res = Math.Abs(x2 - x1);
}
else
{
res = Math.Abs(y2 - y1);
}
ax = (x2 - x1) / res;
ay = (y2 - y1) / res;
x = (float)x1;
y = (float)y1;
Graphics g = Graphics.FromImage(bmpBackGround);
Brush b = new SolidBrush(color);
while (i <= res)
{
distanceLineActual = c1.distance((int)x, (int)y);
if (distanceLineActual > r1 && distanceLineActual < c1.distance(c2) - r2)
{
//este condicional impide el analizis dentro del area de los circulos
//g.Clear(Color.Transparent);
g.FillEllipse(b, x - (R / 2), y - (R / 2), R, R);
}
x += ax;
y += ay;
i++;
//genera una simple aimacion
if (i % parpadeo == 0)
{
pb.Refresh();
}
}
pb.Refresh();
}
List <Point> collisionDDA(Figure c1, Figure c2, Bitmap bmp_)
{
float r1 = c1.R + 5, r2 = c2.R + 5;
int x1 = c1.X, y1 = c1.Y, x2 = c2.X, y2 = c2.Y;
float ax, ay, x, y, res, i = 0, distanceLineActual;
if (Math.Abs(x2 - x1) >= Math.Abs(y2 - y1))
{
res = Math.Abs(x2 - x1);
}
else
{
res = Math.Abs(y2 - y1);
}
ax = (x2 - x1) / res;
ay = (y2 - y1) / res;
x = (float)x1;
y = (float)y1;
List <Point> points = new List <Point>();
while (i <= res)
{
distanceLineActual = c1.distance((int)x, (int)y);
if (distanceLineActual > r1 && distanceLineActual < c1.distance(c2) - r2)
{
//este condicional impide el analizis dentro del area de los circulos
//esto evitara notar colisiones con el mismo circulo
if (collision((int)x, (int)y, bmp_))
{
return(null);
}
if (collision((int)(x + ax), (int)y, bmp_))
{
return(null);
}
}
points.Add(new Point((int)x, (int)y));
x += ax;
y += ay;
i++;
}
return(points);
}