#255 Drawing line sometimes shows a 360 degree angle

[Karl Ove Hufthammer]

When drawing an almost horizontal line, the text description sometimes says that the line is 0 degrees, and sometimes 360 degrees. This is confusing, since 360° = 0°. Should be changed to always say 0 degrees.

Tested using the latest Git version.

[Pere Pujal i Carabantes]

Manually rounding 359.5 to 0 seems to fix it

diff --git a/src/tuxpaint.c b/src/tuxpaint.c
index a7948c7d..91ce84c5 100644
--- a/src/tuxpaint.c
+++ b/src/tuxpaint.c
@@ -5976,6 +5976,9 @@ static void mainloop(void)
if (angle < 0.0)
angle += 360.0;

• if (angle >= 359.5)
• angle = 0.0; / Manually rounding to 0 as %.0f would have rounded to 360 /
  +
  update_screen(line_start_x + r_canvas.x,
  line_start_y + r_canvas.y, old_x + r_canvas.x, old_y + r_canvas.y);
  update_screen(line_start_x + r_canvas.x,

[William Kendrick]

Mended in https://sourceforge.net/p/tuxpaint/tuxpaint/ci/e984f23b5f1a84644888d3a15f0b4e0187063080/