public static void drawLine(double x1, double y1, double x2, double y2, int thickness){
        //GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
        //GL11.glEnable(GL11.GL_BLEND);
        GL11.glLineWidth(thickness);
        GL11.glColor3f(0, 0, 0);
        Tessellator tessellator = Tessellator.instance;
        tessellator.startDrawing(GL11.GL_LINES);
        tessellator.addVertex(x1, y1, 0);
        tessellator.addVertex(x2, y2, 0);
        tessellator.draw();
        System.out.println("Drawing lines at: " + x1 + ", " + y1 + ", " + x2 + ", " + y2);
        //GL11.glDisable(GL11.GL_BLEND);

    }