NAME¶

SDL_GetRectAndLineIntersectionFloat - Calculate the intersection of a rectangle and line segment with float precision.

HEADER FILE¶

Defined in SDL3/SDL_rect.h

SYNOPSIS¶

#include "SDL3/SDL.h"

bool SDL_GetRectAndLineIntersectionFloat(const SDL_FRect *rect, float *X1, float *Y1, float *X2, float *Y2);

DESCRIPTION¶

This function is used to clip a line segment to a rectangle. A line segment contained entirely within the rectangle or that does not intersect will remain unchanged. A line segment that crosses the rectangle at either or both ends will be clipped to the boundary of the rectangle and the new coordinates saved in X1 , Y1 , X2 , and/or Y2 as necessary.

FUNCTION PARAMETERS¶

rect

an SDL_FRect
structure representing the rectangle to intersect.

X1

a pointer to the starting X-coordinate of the line.

Y1

a pointer to the starting Y-coordinate of the line.

X2

a pointer to the ending X-coordinate of the line.

Y2

a pointer to the ending Y-coordinate of the line.

RETURN VALUE¶

Returns true if there is an intersection, false otherwise.

AVAILABILITY¶

This function is available since SDL 3.1.3.