X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=445e0cd87525b4d1f2d057f8a79c1cc636874dd7;hp=0b5a8790ddb9ccd33f96b68f084232329b68c947;hb=7664cdd0015a7d16ea6fdb0b06fca1a23586f0c1;hpb=4f5489c9ff0a0c37cc7c89c412b1a1079272337d diff --git a/helper.c b/helper.c index 0b5a879..445e0cd 100644 --- a/helper.c +++ b/helper.c @@ -206,64 +206,38 @@ int makeSubmenuFromArray( const char *menuEntries[], unsigned int menuEntriesSiz return mainMenu; } -/** - * Recursive function to draw a square by drawing smaller and smaller - * divisions of the square, determined by drawFloorRecurse. - * @param recurseLevel Current level of recursion, only pass 0 - * @param x1 top-left x - * @param z1 top-left z - * @param x2 bottom-left x - * @param z2 bottom-left z - */ -void drawSquare(int recurseLevel, float x1, float z1, float x2, float z2) { - if ( drawFloorRecurse != recurseLevel ) { - // Calculate middle points - float xm = (x1 + x2) / 2.0; - float zm = (z1 + z2) / 2.0; - - // Increment recursion level - int rnew = recurseLevel + 1; - - // Split into four sub-quads - drawSquare(rnew, x1, z1, xm, zm); - drawSquare(rnew, x1, zm, xm, z2); - drawSquare(rnew, xm, zm, x2, z2); - drawSquare(rnew, xm, z1, x2, zm); - - } else { - // Draw square. - // **NOTE: We're drawing large strips, instead of squares, which might cause a lighting problem - glBegin(GL_QUADS); - //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); - glVertex3f(x2, 0.0, z1); - glEnd(); - } -} - /** * Draw a floor by calling the drawSquare recursion */ void drawFloor() { - drawSquare(0, -floorSize, -floorSize, floorSize, floorSize); + glBegin(GL_QUADS); + for ( int x = -floorSize; x < floorSize; x++ ) { + for ( int y = -floorSize; y < floorSize; y++ ) { + glColor3f( 1.0, 1.0, 1.0 ); + glVertex2f( x*squareSize, y*squareSize ); + glVertex2f( (x+1)*squareSize, y*squareSize ); + glVertex2f( (x+1)*squareSize, (y+1)*squareSize ); + glVertex2f( x*squareSize, (y+1)*squareSize ); + + } + } + glEnd(); } /** * 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 = 0.1; + float arrowLength = 1.0; glBegin(GL_LINES); // x arrow