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[atyndall/cits2231.git] / helper.c

diff --git a/helper.c b/helper.c
index 4e03e1f..5903b84 100644 (file)
--- a/helper.c
+++ b/helper.c
@@ -235,7 +235,7 @@ void drawSquare(int recurseLevel, float x1, float z1, float x2, float z2) {
     // **NOTE: We're drawing large strips, instead of squares, which might cause a lighting problem
     glBegin(GL_QUADS);
       //glNormal3f(0,1,0);
     // **NOTE: We're drawing large strips, instead of squares, which might cause a lighting problem
     glBegin(GL_QUADS);
       //glNormal3f(0,1,0);

-      glColor3f(0.0, 0.0, 0.0);
+      glColor3f(1.0, 1.0, 1.0);

       glVertex3f(x1, 0.0, z1);
       glVertex3f(x1, 0.0, z2);
       glVertex3f(x2, 0.0, z2);
       glVertex3f(x1, 0.0, z1);
       glVertex3f(x1, 0.0, z2);
       glVertex3f(x2, 0.0, z2);


@@ -263,12 +263,18 @@ void drawLine() {
   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
   glColor3f( 0.0, 0.0, 0.0 );
 
   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
   glColor3f( 0.0, 0.0, 0.0 );
 

+  float arrowLength = 0.5;
+

   glBegin(GL_LINES);
   glBegin(GL_LINES);

+    // x arrow

     glVertex3i(  lineLength, 0.0, 0.0 );
     glVertex3i( -lineLength, 0.0, 0.0 );
     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();
     glVertex3i( 0.0, 0.0,  lineLength );
     glVertex3i( 0.0, 0.0, -lineLength );
   glEnd();