Name: l_rect x; Description: X-coordinate of the point. Name: l_rect y; Description: Y-coordinate of the point.
Name: l_point a; Description: Coordinate of the upper-left corner. Name: l_point b; Description: Coordinate of the lower-right corner.
Name: t_Rect rect_empty; Description: A global variable for an empty rectangle.point_assign ()
Description: Creates a new t_point structure. Same as "t_point p = (x, y);". Syntax: t_point point_assign ( l_rect x, l_rect y ); Parameters: x X-value to assign. y Y-value to assign. Returns: The new t_point structure.rect_assign ()
Description: Creates a new t_rect structure from the given values. Syntax: t_rect rect_assign ( l_rect ax, l_rect ay, l_rect bx, l_rect by ); Parameters: ax X-coordinate of the upper-left corner. ay Y-coordinate of the upper-left corner. bx X-coordinate of the lower-right corner. by Y-coordinate of the lower-right corner. Returns: The new t_rect structure. Example: t_rect r = rect_assign(100, 150, 200, 250); This creates a rectangle with these values: r.a.x = 100 r.a.y = 150 r.b.x = 200 r.b.y = 250rect_move ()
Description: Moves a rectangle. Syntax: t_rect rect_move ( t_rect r, l_rect mx, l_rect my ); Parameters: r Rectangle to move. mx Distance (in pixels) to move horizontally. my Distance (in pixels) to move vertically. Returns: The new t_rect structure.rect_size ()
Description: Gets the size of a rectangle. Syntax: t_point rect_size ( t_rect r ); Parameters: r Rectangle to get information about. Returns: A t_point structure where p.x is width of rectangle and p.y is its height.rect_cliped ()
Description: Clips a rectangle with another one. Syntax: t_rect rect_cliped ( t_rect r, t_rect d ); Parameters: r Rectangle to clip. d Rectangle to clip with. Returns: The clipped rectangle. If the two don't overlap, it returns rect_empty.rect_overlay ()
Description: Determines wether a rectangle overlays another one. WARNING: Do not attempt to change t_rect by l_rect! Syntax: l_bool rect_overlay ( t_rect r, t_rect d ); Parameters: r The overlaying rectangle. d Overlaid rectangle. Returns: True if they overlay, false if not.