/// <summary>
/// Draws a polygon12
/// </summary>
/// <param name="sb"></param>
/// <param name="r"></param>
/// <param name="c"></param>
static public void drawPolygon12(SpriteBatch sb, Polygon12 r, Color c)
{
for (int i = 0; i < r.numOfPoints - 1; i++)
{
drawLine(sb, c, new Vector2(r.point[i].X, r.point[i].Y), new Vector2(r.point[i + 1].X, r.point[i + 1].Y), 0);
}
drawLine(sb, c, new Vector2(r.point[r.numOfPoints - 1].X, r.point[r.numOfPoints - 1].Y), new Vector2(r.point[0].X, r.point[0].Y), 0);
}
/// <summary>
/// Copy Constructor
/// </summary>
/// <param name="r"></param>
public Polygon12(Polygon12 r)
{
point = new Vector2[maxNumOfPoints];
numOfPoints = r.numOfPoints;
for (int i = 0; i < numOfPoints; i++)
{
point[i].X = r.point[i].X;
point[i].Y = r.point[i].Y;
}
}
public static bool collisionPolygon12(Polygon12 r0, Polygon12 r1)
{
// bool rc = false;
Rectangle rr0 = r0.getAABoundingRect();
Rectangle rr1 = r1.getAABoundingRect();
if (!rr0.Intersects(rr1))
{
return(false); // they cant colide the aa's dont collide
}
if (insidePoly(r1.point[0], r0.point, r0.numOfPoints))
{
return(true);
}
if (insidePoly(r0.point[0], r1.point, r1.numOfPoints))
{
return(true);
}
for (int i0 = 0; i0 < r0.numOfPoints; i0++)
{
int j0 = i0 + 1;
if (j0 >= r0.numOfPoints)
{
j0 = 0;
}
for (int i1 = 0; i1 < r1.numOfPoints; i1++)
{
// construct a line for r0 point i to j
int j1 = i1 + 1;
if (j1 >= r1.numOfPoints)
{
j1 = 0;
}
Vector2 cp = new Vector2(0, 0);
int rc0 = intersect2D(ref cp, r0.point[i0], r0.point[j0], r1.point[i1], r1.point[j1]); if (rc0 != 3)
{
return(true);
}
}
}
return(false);
}