Thread: Is rectange fully inside another rectangles

First, you only need two points to define a rectangle (unless it's angled). Take a look at it and you'll see that some of the points (corners) in the rectangle have the same X or Y coordinates.

Code:

(X1, Y1)
   ¤-----------------+
   |                 |
   |                 |
   |                 |
   |                 |
   |                 |
   |                 |
   +-----------------¤
                  (X2, Y2)

Assuming Point 1 is always the upper left corner, and Point 2 is always the bottom right corner, this will check if Rectangle 1 is completely inside Rectangle 2:

Code:

if((R1.X1 >= R2.X1) && (R1.X2 <= R2.X2))
{
   if((R1.Y1 >= R2.Y1) && (R1.Y2 <= R2.Y2))
   {
      ...
   }
}