#include <banjo/api.h>

Include dependency graph for rect.h:

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Data Structures
struct	bj_rect

Functions
bj_bool	bj_rect_intersection (const struct bj_rect rect_a, const struct bj_rect rect_b, struct bj_rect *result)
void	bj_rect_union (const struct bj_rect rect_a, const struct bj_rect rect_b, struct bj_rect *result)

Detailed Description

Axis-aligned rectangle in pixel coordinates.

A bj_rect describes an axis-aligned rectangle in pixel space: a top-left corner (x, y) and a size (w, h). The coordinate system matches the rest of Banjo's 2D APIs: origin at the top-left of the surface, X increasing to the right, Y increasing downward.

Position is signed (a rectangle can extend off the top-left of the surface and be clipped by drawing or blit routines); size is unsigned. The full rectangle covers pixels in [x, x + w) horizontally and [y, y + h) vertically.

Used as a region selector by the bitmap drawing and blit functions (bj_blit, bj_blit_stretched, ...). bj_rect_intersection computes the overlap of two rectangles for clipping or hit-testing.

Definition in file rect.h.

Data Structures

Functions

Detailed Description