franniss 发表于 2009-12-11 16:15:26

螺旋线

放到 draw 事件中查看

for( i=0;i<=16*pi;i+=pi/20 )
{
xd = x - 32*cos(i) + i*( mouse_x-x )*pi/10;
yd = y + 32*sin(i) + i*( mouse_y-y )*pi/10;
xh = x - 32*cos( i+pi/10 ) + ( i+pi/10 )*( mouse_x-x )*pi/10;
yh = y + 32*sin( i+pi/10 ) + ( i+pi/10 )*( mouse_y-y )*pi/10;
draw_line( xd,yd,xh,yh );
}
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