public RectI Set(RectI r)
{
this.x = r.x;
this.y = r.y;
this.width = r.width;
this.height = r.height;
return(this);
}
public RectI GetIntersection(RectI rect)
{
int x1 = MathUtils.Max(x, rect.x);
int x2 = MathUtils.Min(x + width, rect.x + rect.width);
int y1 = MathUtils.Max(y, rect.y);
int y2 = MathUtils.Min(y + height, rect.y + rect.height);
return(new RectI(x1, y1, x2 - x1, y2 - y1));
}
public static bool Contains(int[] xPoints, int[] yPoints,
int nPoints, RectI bounds, int x, int y)
{
if ((bounds != null && bounds.Inside(x, y)) ||
(bounds == null && SetBoundingBox(tmp_rect_I, xPoints,
yPoints, nPoints).Inside(x, y)))
{
int hits = 0;
int ySave = 0;
int i = 0;
while (i < nPoints && yPoints[i] == y)
{
i++;
}
for (int n = 0; n < nPoints; n++)
{
int j = (i + 1) % nPoints;
int dx = xPoints[j] - xPoints[i];
int dy = yPoints[j] - yPoints[i];
if (dy != 0)
{
int rx = x - xPoints[i];
int ry = y - yPoints[i];
if (yPoints[j] == y && xPoints[j] >= x)
{
ySave = yPoints[i];
}
if (yPoints[i] == y && xPoints[i] >= x)
{
if ((ySave > y) != (yPoints[j] > y))
{
hits--;
}
}
if (ry * dy >= 0 &&
(ry <= dy && ry >= 0 || ry >= dy && ry <= 0) &&
MathUtils.Round(dx * ry, dy) >= rx)
{
hits++;
}
}
i = j;
}
return((hits % 2) != 0);
}
return(false);
}
public static RectI GetIntersection(RectI a, RectI b)
{
int a_x = a.x;
int a_r = a.GetRight();
int a_y = a.y;
int a_t = a.GetBottom();
int b_x = b.x;
int b_r = b.GetRight();
int b_y = b.y;
int b_t = b.GetBottom();
int i_x = MathUtils.Max(a_x, b_x);
int i_r = MathUtils.Min(a_r, b_r);
int i_y = MathUtils.Max(a_y, b_y);
int i_t = MathUtils.Min(a_t, b_t);
return(i_x < i_r && i_y < i_t ? new RectI(i_x, i_y, i_r - i_x, i_t - i_y) : null);
}
public static RectI SetBoundingBox(RectI rect, int[] xpoints,
int[] ypoints, int npoints)
{
int boundsMinX = Integer.MAX_VALUE_JAVA;
int boundsMinY = Integer.MAX_VALUE_JAVA;
int boundsMaxX = Integer.MIN_VALUE_JAVA;
int boundsMaxY = Integer.MIN_VALUE_JAVA;
for (int i = 0; i < npoints; i++)
{
int x = xpoints[i];
boundsMinX = MathUtils.Min(boundsMinX, x);
boundsMaxX = MathUtils.Max(boundsMaxX, x);
int y = ypoints[i];
boundsMinY = MathUtils.Min(boundsMinY, y);
boundsMaxY = MathUtils.Max(boundsMaxY, y);
}
return(rect.Set(boundsMinX, boundsMinY, boundsMaxX - boundsMinX,
boundsMaxY - boundsMinY));
}
public static RectI GetIntersection(RectI a, RectI b, RectI result)
{
int a_x = a.x;
int a_r = a.GetRight();
int a_y = a.y;
int a_t = a.GetBottom();
int b_x = b.x;
int b_r = b.GetRight();
int b_y = b.y;
int b_t = b.GetBottom();
int i_x = MathUtils.Max(a_x, b_x);
int i_r = MathUtils.Min(a_r, b_r);
int i_y = MathUtils.Max(a_y, b_y);
int i_t = MathUtils.Min(a_t, b_t);
if (i_x < i_r && i_y < i_t)
{
result.Set(i_x, i_y, i_r - i_x, i_t - i_y);
return(result);
}
return(result);
}
public static void GetDiff(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2, RectI result)
{
result.Set(x2 - x1 - w1, y2 - y1 - h1, w1 + w2, h1 + h2);
}
public RectI(RectI rect) : this(rect.x, rect.y, rect.width, rect.height)
{
}
public Range(RectI rect) : this(rect.Left(), rect.Top(), rect.Right(), rect.Bottom())
{
}