~aritra1911/ansi_anim

ef09d4b54e8ddc04656f810382d7f209dd2a50d4 — Aritra Sarkar 2 years ago 8243b87 master
Add bounds checking
1 files changed, 19 insertions(+), 6 deletions(-)

M src/main.c
M src/main.c => src/main.c +19 -6
@@ 88,9 88,9 @@ int main(void)
        /* Read a byte from the standard input */
        while ( read(STDIN_FILENO, &c, 1) < 1 ) {

            if ( rects[2].origin.y + rects[2].height > screen_size.y ) {
            if ( rects[2].origin.y + rects[2].height + 4 > screen_size.y ) {
                dir = UP;
            } else if ( rects[2].origin.y <= 1 ) {
            } else if ( rects[2].origin.y - 4 < 1 ) {
                dir = DOWN;
            }



@@ 106,20 106,33 @@ int main(void)
            else if ( c == 'h' || c == 'j' || c == 'k' || c == 'l' ) {
                orig_cursor_pos = get_cursor_pos();
                erase(&rects[0]);

                switch ( c ) {
                case 'h':
                    nudge(&rects[0], LEFT, 1);
                    if ( rects[0].origin.x > 1 ) {
                        nudge(&rects[0], LEFT, 1);
                    }
                    break;

                case 'j':
                    nudge(&rects[0], DOWN, 1);
                    if ( rects[0].origin.y + rects[0].height <= screen_size.y ) {
                        nudge(&rects[0], DOWN, 1);
                    }
                    break;

                case 'k':
                    nudge(&rects[0], UP, 1);
                    if ( rects[0].origin.y > 1 ) {
                        nudge(&rects[0], UP, 1);
                    }
                    break;

                case 'l':
                    nudge(&rects[0], RIGHT, 1);
                    if ( rects[0].origin.x + rects[0].width < screen_size.x ) {
                        nudge(&rects[0], RIGHT, 1);
                    }
                    break;
                }

                draw(&rects[0]);
                move_cursor(orig_cursor_pos);
            }