X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=460c44a59a8ee32f5730dca4909b32098821fcf5;hp=3b82580cc88dcc5101bd2c61d3b10e7fbf280102;hb=e84eec59aded99f41844e639a2ce84871c695002;hpb=1d0e5964c9b4b65095c36871a58bc2bfcc4332ac diff --git a/helper.c b/helper.c index 3b82580..460c44a 100644 --- a/helper.c +++ b/helper.c @@ -254,13 +254,14 @@ void drawFloor() { /** * Draw x, z axis on floor */ -void drawLine() { +void drawAxisLines() { // **NOTE: Function does not currently draw arrow-heads glDisable(GL_TEXTURE_2D); glDisable(GL_LIGHTING); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glEnable(GL_LINE_SMOOTH); glColor3f( 0.0, 0.0, 0.0 ); float arrowLength = 1.0; @@ -272,14 +273,21 @@ void drawLine() { // x arrowheads glVertex3i( lineLength, 0.0, 0.0 ); - glVertex3i( lineLength - arrowLength, 0.0, arrowLength ); + glVertex3i( lineLength - arrowLength, 0.0, 1.0 ); - glVertex3i( -lineLength, 0.0, 0.0 ); - glVertex3i( -lineLength - arrowLength, 0.0, arrowLength ); + glVertex3i( lineLength, 0.0, 0.0 ); + glVertex3i( lineLength - arrowLength, 0.0, -1.0 ); // z arrow - glVertex3i( 0.0, 0.0, lineLength ); - glVertex3i( 0.0, 0.0, -lineLength ); + glVertex3i( 0.0, 0.0, lineLength ); + glVertex3i( 0.0, 0.0, -lineLength ); + + // z arrowheads + glVertex3i( 0.0, 0.0, lineLength ); + glVertex3i( 1.0, 0.0, lineLength - arrowLength ); + + glVertex3i( 0.0, 0.0, lineLength ); + glVertex3i( -1.0, 0.0, lineLength - arrowLength ); glEnd(); glDisable(GL_BLEND);