(no commit message)
authorAsh Tyndall <git@atyndall.net>
Fri, 21 Oct 2011 01:39:03 +0000 (09:39 +0800)
committerAsh Tyndall <git@atyndall.net>
Fri, 21 Oct 2011 01:39:03 +0000 (09:39 +0800)
helper.c

index 9695093..b1b0d96 100644 (file)
--- a/helper.c
+++ b/helper.c
@@ -264,8 +264,18 @@ void drawLine() {
   glColor3f( 0.0, 0.0, 0.0 );
 
   glBegin(GL_LINES);
+    // x arrow
     glVertex3i(  lineLength, 0.0, 0.0 );
     glVertex3i( -lineLength, 0.0, 0.0 );
+    
+    // x arrowheads
+    glVertex3i( lineLength - 1, 0.0, 0.0 );
+    glVertex3i( -lineLength - 1, 0.0, 0.0 );
+    
+    glVertex3i( lineLength - 1, 0.0, 0.0 );
+    glVertex3i( -lineLength + 1, 0.0, 0.0 );
+
+    // z arrow
     glVertex3i( 0.0, 0.0,  lineLength );
     glVertex3i( 0.0, 0.0, -lineLength );
   glEnd();

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