/* 4d) initiate a 2D vertex array and a 2-D color array */

        static final float hjornepunkter[][] = {{1.0f,1.0f,0.0f}, {3.0f,1.0f,0.0f}, {3.0f,2.0f,0.0f}, {1.0f,2.0f,0.0f}, {2.0f,1.5f,3.0f}};
        static final float colors[][] = {{1.0f,0.0f,0.0f}, {1.0f,1.0f,0.0f}, {0.0f,1.0f,.0f},{0.0f,1.0f,1.0f}, {0.0f,0.f,1.0f}};


     /* 4e) Draw a triangle using a vertex array */

        public void polygon( GLAutoDrawable glDrawable, int a, int b, int c) {

            GL gl = glDrawable.getGL();
            gl.glLoadIdentity();

            gl.glTranslatef(0.0f,1.5f,-7.0f);

            gl.glColor3fv(colors[a], 0);

            gl.glBegin(GL.GL_POLYGON);
                gl.glVertex3fv(hjornepunkter[a], 0);
                gl.glVertex3fv(hjornepunkter[b], 0);
                gl.glVertex3fv(hjornepunkter[c], 0);
            gl.glEnd();
        }

    /* 4f)  Draw a polygon/quad using a vertex array */