draw_set_color(c_red)
draw_circle(x,y,rad,0)
draw_set_color(c_lime)
draw_primitive_begin(pr_trianglefan)
draw_vertex(x,y)
i = 0
while(i<health){
        draw_vertex(x+lengthdir_x(rad,(i/100)*360),y+lengthdir_y(rad,(i/100)*360))
        i+=1
}
rad -= 20 //thickness
while (i > 0){
    draw_vertex(x+lengthdir_x(rad,(i/100)*360),y+lengthdir_y(rad,(i/100)*360))
    i-= 1;
}
draw_primitive_end()
draw_set_color(c_black)
draw_circle(x,y,rad,1)