X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=9da70fe9ec4298e29a9cafd793d4ba60701d414c;hp=d685e5191721999f95be78f41240b4035eb6fd25;hb=29aa2161a1326899a63dbd8e5d99772b45461826;hpb=d3465c5cd0e6e9b414e669e8c8aa464b03f2fd24 diff --git a/helper.c b/helper.c index d685e51..9da70fe 100644 --- a/helper.c +++ b/helper.c @@ -234,7 +234,14 @@ void drawSquare(int recurseLevel, float x1, float z1, float x2, float z2) { } else { // Draw square. // **NOTE: Is the polygon facing in the right direction? + + if ( (x1 - x2) / (z1 - z2)) { + printf("(%f, %f), (%f, %f) is not square!\n", x1, z1, x2, z2); + } + + //printf("Drawing square (%f, %f), (%f, %f), (%f, %f), (%f, %f)\n", x1, z1, x1, z2, x2, z2, x2, z1); glBegin(GL_QUADS); + glNormal3f(0,1,0); glVertex3f(x1, 0.0, z1); glVertex3f(x1, 0.0, z2); glVertex3f(x2, 0.0, z2); @@ -257,15 +264,22 @@ void drawFloor() { void drawLine() { // **NOTE: fix function glDisable(GL_TEXTURE_2D); - glEnable(GL_BLEND); + glDisable(GL_LIGHTING); + //glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - glColor4ub( 0.0, 0.0, 0.0, 0.5 ); + glColor3f( 0.0, 0.0, 0.0 ); + + glBegin(GL_LINES); + glVertex3i( lineLength, 0.0, 0.0 ); + glVertex3i( -lineLength, 0.0, 0.0 ); + glEnd(); glBegin(GL_LINES); - glVertex3i( 10.0, 0.1, 10.0); - glVertex3i( -10.0, 0.1, -10.0); + glVertex3i( 0.0, 0.0, lineLength ); + glVertex3i( 0.0, 0.0, -lineLength ); glEnd(); - glDisable(GL_BLEND); + //glDisable(GL_BLEND); + glEnable(GL_LIGHTING); glEnable(GL_TEXTURE_2D); } \ No newline at end of file