#! python3
import rhinoscriptsyntax as rs
import random as ran
import flipped_lib as fc


rs.DeleteObjects(rs.AllObjects())


def my_panel(points, scale):                                    #name poijnts in quad list
    rs.AddSrfPt(points)                                               #make first diagonal line
    (P0,P1,P2,P3) = points
    rs.AddLine(P0,P2)
    d_cen1 = rs.VectorDivide(rs.VectorAdd(P0,P2),2)                   #calc center of first diagonal line
    #rs.AddPoint(d_cen1)                                               #put point at first diagonal center
    rs.AddLine(P1,P3)                                                 #create a second diagonal line
    d_cen2 = rs.VectorDivide(rs.VectorAdd(P1,P3),2)                   #calc center of second diagonal line
    #rs.AddPoint(d_cen2)                                               #put point at second diagonal center
    center_pt = rs.VectorDivide(rs.VectorAdd(d_cen1,d_cen2),2)        #calc center between diagonal center points
    #rs.AddPoint(center_pt)                                            #put point at true center point
    if not (rs.PointCompare(d_cen1,d_cen2)):                          #make sure the 2 center points are not identical
        rs.AddLine(d_cen1,d_cen2)                                     #draw line between diagonal center points
    #prepare vectors for cross product to get normal
    vec1 = rs.VectorSubtract(P0, center_pt)
    vec2 = rs.VectorSubtract(center_pt,P3)
    normal = rs.VectorCrossProduct(vec1, vec2)                        #calc face normal at true center point
    u_normal = rs.VectorUnitize(normal)                               #unitize this normal vector (length1)
    su_normal = rs.VectorScale(u_normal, scale)                       #scale unitized normal vector
    normal_pt = rs.VectorAdd(center_pt, su_normal)                    #fint point at tip of normal vector
    #rs.AddPoint(normal_pt)                                            #put point normal_pt
    rs.AddLine(center_pt, normal_pt)                                  #line to show centered normal vector
    #create pyramid
    rs.AddSrfPt([P0, normal_pt, P1])
    rs.AddSrfPt([P1, normal_pt, P2])
    rs.AddSrfPt([P2, normal_pt, P3])
    rs.AddSrfPt([P3, normal_pt, P0])


########################################

rs.EnableRedraw(False)

#quad = [[0,0,0], [10,0,0], [10,0,12], [0,0,12]]
#quad = [[0,0,0], [10,4,0], [10,4,12], [0,0,12]]
#quad = [[0,0,0], [10,0,0], [10,0,12], [0,2,12]]
quad = [[0,0,0], [10,0,0], [8,2,12], [2,2,12]]
#quad = [[0,0,0], [10,2,0], [10,-2,12], [0,2,10]]

#result_list = fc.PEF_single_face(quad)
result_list = fc.PEF_face(7, 10, 8.0, 5.0, 30)
result_list = fc.PEF_face_w(7, 10, 8.0, 5.0, 30, 2.0)
result_list = fc.PEF_pantheon()

p_list = result_list[0]     #Pointlist, contains single points
e_list = result_list[1]     #Horizontal Edgelist, contains lists with two points
ce_list = result_list[2]    #Vertical Edgelist, contains lists with two points
f_list = result_list[3]     #Facelist, contains lists with four points (quads)
zcol = result_list[4]       #number of levels of faces
xcol = result_list[5]       #number of faces in one level
print ("there are " + str(len(p_list)) + " points and " + str(len(f_list)) + " faces on " + str(zcol) + " levels, "+str(xcol)+" per level!")


if 1:
    for i in range(zcol):
        for j in range (xcol):
            points = f_list[i*xcol+j]
            scale = ran.uniform(0.5, 8.5)
            my_panel(f_list[i*xcol+j],scale)
            #rs.AddSrfPt(f_list[i*xcol+j])


###########################################
# DOTS to explain the lists
###########################################
if 0:  # put a dot on each point and create a Point
    for i,pt in enumerate(p_list):
        rs.AddPoint(pt)
        cmd = "-Dot {} {} _Enter ".format(i,pt)
        rs.Command(cmd, False)

if 0:  # put a dot on each horizontal edge and create a line
    for i,e in enumerate(e_list):
        rs.AddLine(e[0],e[1])
        cmd = "-Dot {} {} _Enter ".format(i,e[0])
        rs.Command(cmd, False)

if 0:  # put a dot on each vertical edge and create a line
    for i,ve in enumerate(ve_list):
        rs.AddLine(ve[0],ve[1])
        cmd = "-Dot {} {} _Enter ".format(i,ve[0])
        rs.Command(cmd, False)

if 0:  # put a dot on each face and create a surface
    for i, quad in enumerate(f_list):
        rs.AddSrfPt(quad)
        cmd = "-Dot {} {} _Enter ".format(i,quad[0])
        rs.Command(cmd, False)


#################################################
# Some experiments with the lists
#################################################
if 1:
    for i, quad in enumerate(f_list):
        if i%2:
            rs.AddSrfPt(quad)

if 1:
    for i in range(zcol):
        for j in range(xcol):
            if (i+j)%2:
                rs.AddSrfPt(f_list[i*xcol+j])

if 1: # last row in pantheon ceiling is flat
    for i in range(zcol):
        for j in range(xcol):
            if i != zcol-1:
                points = f_list[i*xcol+j]
                scale = ran.uniform(0.3,9.5)
                my_panel(f_list[i*xcol+j], scale)
            else:
                rs.AddSrfPt(f_list[i*xcol+j])

if 0:
    for i in range(zcol):
        for j in range(xcol):
            points = f_list[i*xcol+j]
            (P0,P1,P2,P3) = points
            cpoints=[P0,P1,P2,P3,P0]
            plinea = rs.AddCurve(cpoints,2)
            plineb = rs.AddCurve(cpoints,3)
            #loftsurf = rs.AddLoftSrf([plinea, plineb])
            rs.Command("-_Loft selid {} selid {} _Enter _Enter _Enter".format(plinea, plineb), False)
            loftsurf = rs.FirstObject()
            rs.OffsetSurface(loftsurf, .2, both_sides=True, create_solid=True) 

if 1:
    for line in e_list:
        mline = rs.AddLine(line[0], line[1])
        rs.AddPipe(mline, 0, 0.25, cap=2)
    for line in e_list:
        mline = rs.AddLine(line[0], line[1])
        rs.AddPipe(mline, 0, 0.3, cap=2)
   
rs.EnableRedraw(True)