X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=5903b843197c531c52de0bcbed17a9a6517208b7;hp=0071af4b363edd656db83059dfeb4756fc6478e9;hb=9644796a64e902273a02a75c68e22da05b3a87ec;hpb=84eea711e741871dfb6cc595a0989e1369998d7f;ds=sidebyside

diff --git a/helper.c b/helper.c
index 0071af4..5903b84 100644
--- a/helper.c
+++ b/helper.c
@@ -234,7 +234,8 @@ void drawSquare(int recurseLevel, float x1, float z1, float x2, float z2) {
     // Draw square.
     // **NOTE: We're drawing large strips, instead of squares, which might cause a lighting problem
     glBegin(GL_QUADS);
-      glNormal3f(0,1,0);
+      //glNormal3f(0,1,0);
+      glColor3f(1.0, 1.0, 1.0);
       glVertex3f(x1, 0.0, z1);
       glVertex3f(x1, 0.0, z2);
       glVertex3f(x2, 0.0, z2);
@@ -262,12 +263,18 @@ void drawLine() {
   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
   glColor3f( 0.0, 0.0, 0.0 );
 
+  float arrowLength = 0.5;
+
   glBegin(GL_LINES);
+    // x arrow
     glVertex3i(  lineLength, 0.0, 0.0 );
     glVertex3i( -lineLength, 0.0, 0.0 );
-  glEnd();
+    
+    // x arrowheads
+    glVertex3i(  lineLength, 0.0, 0.0 );
+    glVertex3i(  lineLength -  arrowLength, 0.0,  arrowLength );
 
-  glBegin(GL_LINES);
+    // z arrow
     glVertex3i( 0.0, 0.0,  lineLength );
     glVertex3i( 0.0, 0.0, -lineLength );
   glEnd();