Improve drawNet in safeopenglgraphics.

2 files changed, 28 insertions, 4 deletions

diff --git a/src/render/safeopenglgraphics.cpp b/src/render/safeopenglgraphics.cpp
index 717e7d5bf..c988e6825 100644
--- a/src/render/safeopenglgraphics.cpp
+++ b/src/render/safeopenglgraphics.cpp
@@ -566,17 +566,37 @@ void SafeOpenGLGraphics::drawPoint(int x, int y)
     glEnd();
 }
 
-void SafeOpenGLGraphics::drawLine(int x1, int y1, int x2, int y2)
+bool SafeOpenGLGraphics::drawNet(const int x1, const int y1,
+                                 const int x2, const int y2,
+                                 const int width, const int height)
 {
     setTexturingAndBlending(false);
     restoreColor();
 
     glBegin(GL_LINES);
-    glVertex2f(static_cast<float>(x1) + 0.5F, static_cast<float>(y1) + 0.5F);
-    glVertex2f(static_cast<float>(x2) + 0.5F, static_cast<float>(y2) + 0.5F);
+    for (int y = y1; y < y2; y += height)
+    {
+        glVertex2f(static_cast<float>(x1) + 0.5F, static_cast<float>(y) + 0.5F);
+        glVertex2f(static_cast<float>(x2) + 0.5F, static_cast<float>(y) + 0.5F);
+    }
+
+    for (int x = x1; x < x2; x += width)
+    {
+        glVertex2f(static_cast<float>(x) + 0.5F, static_cast<float>(y1) + 0.5F);
+        glVertex2f(static_cast<float>(x) + 0.5F, static_cast<float>(y2) + 0.5F);
+    }
     glEnd();
 
-    glBegin(GL_POINTS);
+    return true;
+}
+
+void SafeOpenGLGraphics::drawLine(int x1, int y1, int x2, int y2)
+{
+    setTexturingAndBlending(false);
+    restoreColor();
+
+    glBegin(GL_LINES);
+    glVertex2f(static_cast<float>(x1) + 0.5F, static_cast<float>(y1) + 0.5F);
     glVertex2f(static_cast<float>(x2) + 0.5F, static_cast<float>(y2) + 0.5F);
     glEnd();
 }
diff --git a/src/render/safeopenglgraphics.h b/src/render/safeopenglgraphics.h
index 36ce27ded..c4bfd46de 100644
--- a/src/render/safeopenglgraphics.h
+++ b/src/render/safeopenglgraphics.h
@@ -59,6 +59,10 @@ class SafeOpenGLGraphics final : public Graphics
         void drawImageRect(int x, int y, int w, int h,
                            const ImageRect &imgRect);
 
+        bool drawNet(const int x1, const int y1,
+                     const int x2, const int y2,
+                     const int width, const int height) override final;
+
     protected:
         void setTexturingAndBlending(const bool enable);