change parts with number keys

[dosdemo] / src / tunnel.c

diff --git a/src/tunnel.c b/src/tunnel.c
index 55eaefa..4fbc16b 100644 (file)
--- a/src/tunnel.c
+++ b/src/tunnel.c
@@ -181,7 +181,12 @@ static void draw(void)
 
        for(i=0; i<NUM_WORK_ITEMS; i++) {
                int starty = i * num_lines;
+               int resty = starty + draw_lines;
+               int rest_lines = num_lines - draw_lines;
                draw_tunnel_range((unsigned short*)fb_pixels, xoffs, yoffs, starty, draw_lines, time_msec);
+               if(rest_lines) {
+                       memset((unsigned short*)fb_pixels + resty * fb_width, 0, rest_lines * fb_width * 2);
+               }
        }
 }