function Compass()
    screen.drawTriangleF(w/2-5,h-19,w/2+5,h-19,w/2,h-13)
    a1(w/2+compass,h-13,w+compass,h-3)
    a1(w/2+5+compass,h-10,w+5+compass,h-6)
    a1(w/2+5*2+compass,h-10,w+5*2+compass,h-6)
    a1(w/2+5*3+compass,h-10,w+5*3+compass,h-6)
    a1(w/2+5*4+compass,h-10,w+5*4+compass,h-6)
    screen.drawText(w/2+5*5-4+compass,h-19,"20")
    a1(w/2+5*5+compass,h-13,w+5*5+compass,h-3)
    a1(w/2+5*6+compass,h-10,w+5*6+compass,h-6)
    a1(w/2+5*7+compass,h-10,w+5*7+compass,h-6)
    a1(w/2+5*8+compass,h-10,w+5*8+compass,h-6)
    a1(w/2+5*9+compass,h-10,w+5*9+compass,h-6)
    screen.drawText(w+5*10-4+compass,h-19,"40")
    a1(w+5*10+compass,h-13,w+5*10+compass,h-3)
    a1(w+5*11+compass,h-10,w+5*11+compass,h-6)
    a1(w+5*12+compass,h-10,w+5*12+compass,h-6)
    a1(w+5*13+compass,h-10,w+5*13+compass,h-6)
    a1(w+5*14+compass,h-10,w+5*14+compass,h-6)
    screen.drawText(w+5*15-4+compass,h-19,"60")
    a1(w+5*15+compass,h-13,w+5*15+compass,h-3)
    a1(w+5*16+compass,h-10,w+5*16+compass,h-6)
    a1(w+5*17+compass,h-10,w+5*17+compass,h-6)
    a1(w+5*18+compass,h-10,w+5*18+compass,h-6)
    a1(w+5*19+compass,h-10,w+5*19+compass,h-6)
    screen.drawText(w+5*20-4+compass,h-19,"80")
    a1(w+5*20+compass,h-13,w+5*20+compass,h-3)
    a1(w+5*21+compass,h-10,w+5*21+compass,h-6)
    a1(w+5*22+compass,h-10,w+5*22+compass,h-6)
    a1(w+5*23+compass,h-10,w+5*23+compass,h-6)
    a1(w+5*24+compass,h-10,w+5*24+compass,h-6)
    screen.drawText(w-5*25-6+compass,h-19,"100")
    a1(w+5*25+compass,h-13,w+5*25+compass,h-3)
    a1(w+5*26+compass,h-10,w+5*26+compass,h-6)
    a1(w+5*27+compass,h-10,w+5*27+compass,h-6)
    a1(w+5*28+compass,h-10,w+5*28+compass,h-6)
    a1(w+5*29+compass,h-10,w+5*29+compass,h-6)
    screen.drawText(w-5*30-6+compass,h-19,"120")
    a1(w+5*30+compass,h-13,w+5*30+compass,h-3)
    a1(w+5*31+compass,h-10,w+5*31+compass,h-6)
    a1(w+5*32+compass,h-10,w+5*32+compass,h-6)
    a1(w+5*33+compass,h-10,w+5*33+compass,h-6)
    a1(w+5*34+compass,h-10,w+5*34+compass,h-6)
    screen.drawText(w-5*35-6+compass,h-19,"140")
    a1(w+5*35+compass,h-13,w+5*35+compass,h-3)
    a1(w+5*36+compass,h-10,w+5*36+compass,h-6)
    a1(w+5*37+compass,h-10,w+5*37+compass,h-6)
    a1(w+5*38+compass,h-10,w+5*38+compass,h-6)
    a1(w+5*39+compass,h-10,w+5*39+compass,h-6)
    screen.drawText(w-5*40-6+compass,h-19,"160")
    a1(w+5*40+compass,h-13,w+5*40+compass,h-3)
    a1(w+5*41+compass,h-10,w+5*41+compass,h-6)
    a1(w+5*42+compass,h-10,w+5*42+compass,h-6)
    a1(w+5*43+compass,h-10,w+5*43+compass,h-6)
    a1(w+5*44+compass,h-10,w+5*44+compass,h-6)
    screen.drawText(w-5*45-6+compass,h-19,"180")
    a1(w+5*45+compass,h-13,w+5*45+compass,h-3)
    a1(w+5*46+compass,h-10,w+5*46+compass,h-6)
    a1(w+5*47+compass,h-10,w+5*47+compass,h-6)
    a1(w+5*48+compass,h-10,w+5*48+compass,h-6)
    a1(w+5*49+compass,h-10,w+5*49+compass,h-6)
    a1(w-5+compass,h-10,w-5+compass,h-6)
    a1(w-5*2+compass,h-10,w-5*2+compass,h-6)
    a1(w-5*3+compass,h-10,w-5*3+compass,h-6)
    a1(w-5*4+compass,h-10,w-5*4+compass,h-6)
    screen.drawText(w-5*5-6+compass,h-19,"340")
    a1(w-5*5+compass,h-13,w-5*5+compass,h-3)
    a1(w-5*6+compass,h-10,w-5*6+compass,h-6)
    a1(w-5*7+compass,h-10,w-5*7+compass,h-6)
    a1(w-5*8+compass,h-10,w-5*8+compass,h-6)
    a1(w-5*9+compass,h-10,w-5*9+compass,h-6)
    screen.drawText(w-5*10-6+compass,h-19,"320")
    a1(w-5*10+compass,h-13,w-5*10+compass,h-3)
    a1(w-5*11+compass,h-10,w-5*11+compass,h-6)
    a1(w-5*12+compass,h-10,w-5*12+compass,h-6)
    a1(w-5*13+compass,h-10,w-5*13+compass,h-6)
    a1(w-5*14+compass,h-10,w-5*14+compass,h-6)
    screen.drawText(w-5*15-6+compass,h-19,"300")
    a1(w+5*15+compass,h-13,w+5*15+compass,h-3)
    a1(w+5*16+compass,h-10,w+5*16+compass,h-6)
    a1(w+5*17+compass,h-10,w+5*17+compass,h-6)
    a1(w+5*18+compass,h-10,w+5*18+compass,h-6)
    a1(w+5*19+compass,h-10,w+5*19+compass,h-6)
    screen.drawText(w-5*20-6+compass,h-19,"280")
    a1(w+5*20+compass,h-13,w+5*20+compass,h-3)
    a1(w+5*21+compass,h-10,w+5*21+compass,h-6)
    a1(w+5*22+compass,h-10,w+5*22+compass,h-6)
    a1(w+5*23+compass,h-10,w+5*23+compass,h-6)
    a1(w+5*24+compass,h-10,w+5*24+compass,h-6)
    screen.drawText(w-5*25-6+compass,h-19,"260")
    a1(w+5*25+compass,h-13,w+5*25+compass,h-3)
    a1(w+5*26+compass,h-10,w+5*26+compass,h-6)
    a1(w+5*27+compass,h-10,w+5*27+compass,h-6)
    a1(w+5*28+compass,h-10,w+5*28+compass,h-6)
    a1(w+5*29+compass,h-10,w+5*29+compass,h-6)
    screen.drawText(w-5*30-6+compass,h-19,"240")
    a1(w+5*30+compass,h-13,w+5*30+compass,h-3)
    a1(w+5*31+compass,h-10,w+5*31+compass,h-6)
    a1(w+5*32+compass,h-10,w+5*32+compass,h-6)
    a1(w+5*33+compass,h-10,w+5*33+compass,h-6)
    a1(w+5*34+compass,h-10,w+5*34+compass,h-6)
    screen.drawText(w-5*35-6+compass,h-19,"220")
    a1(w+5*35+compass,h-13,w+5*35+compass,h-3)
    a1(w+5*36+compass,h-10,w+5*36+compass,h-6)
    a1(w+5*37+compass,h-10,w+5*37+compass,h-6)
    a1(w+5*38+compass,h-10,w+5*38+compass,h-6)
    a1(w+5*39+compass,h-10,w+5*39+compass,h-6)
    screen.drawText(w-5*40-6+compass,h-19,"200")
    a1(w+5*40+compass,h-13,w+5*40+compass,h-3)
    a1(w+5*41+compass,h-10,w+5*41+compass,h-6)
    a1(w+5*42+compass,h-10,w+5*42+compass,h-6)
    a1(w+5*43+compass,h-10,w+5*43+compass,h-6)
    a1(w+5*44+compass,h-10,w+5*44+compass,h-6)
end