From ade947d219754ee7c6a0a7e15ec08bc0c9ff4930 Mon Sep 17 00:00:00 2001
From: incredibleLeitman <michael.leithner@gmail.com>
Date: Mon, 30 Nov 2020 19:57:56 +0100
Subject: [PATCH] select curLine in next step, only drawing lines for resulting
 hull

---
 Display.cpp | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/Display.cpp b/Display.cpp
index 67c4278..eb1553b 100644
--- a/Display.cpp
+++ b/Display.cpp
@@ -265,8 +265,6 @@ void Display::update ()
                     m_points.erase(m_points.begin() + i);
                 }
             }
-
-            //setCurrentLine(); // set current line in next step
         }
         else
         {
@@ -309,10 +307,6 @@ void Display::update ()
 
             m_lines.push_back(Line(Point(left.x, left.y), Point(right.x, right.y)));
             m_lines.push_back(Line(Point(right.x, right.y), Point(left.x, left.y))); // add first line in both directions to work with "right side"
-
-            // set current line just by taking the only one (in one direction)
-            m_curLineIdx = 1;
-            m_curLine = m_lines[1];
         }
     }
     else if (curStep == 2)
@@ -457,10 +451,11 @@ void Display::render (sf::RenderWindow &window)
     // draw already calculated hull points
     std::sort(m_hullPoints.begin(), m_hullPoints.end(), less); // sort clockwise
 
+    size_t points = m_points.size();
     size_t elements = m_hullPoints.size();
     for (size_t i = 0; i < elements; ++i)
     {
-        window.draw(m_hullPoints[i]);
+        if (points > 0 || m_curLineIdx != -1) window.draw(m_hullPoints[i]);
 
         sf::Vertex ptTo;
         if (i < elements - 1) ptTo = sf::Vertex(m_hullPoints[i + 1].getPosition(), sf::Color::Blue);