from cad_shapes import *
import math

square_size = 1.0; # square size of 2"x 2"
spacing = .1 #spacing 
dim =  3

size = dim * square_size
size = size/2.0

cad.xmin = -size;
cad.xmax = size + (dim+1)*spacing;
cad.ymin = -size;
cad.ymax = size + (dim+1)*spacing;
cad.mm_per_unit = 25.4 # inch units

slot_width = .145
slot_height = square_size/5.0;
slot_chamfer = .2
slot_top = slot(square_size/2, 0, slot_width, slot_height, 180, slot_chamfer)
slot_bottom = slot(square_size/2, square_size, slot_width, slot_height, 0, slot_chamfer)
slot_left = slot(0, square_size/2, slot_width, slot_height, 90, slot_chamfer)
slot_right = slot(square_size, square_size/2, slot_width, slot_height, -90, slot_chamfer)

rectangle = rectangle(0, square_size, 0, square_size)
piece = subtract(rectangle, slot_top)
piece = subtract(piece, slot_bottom)
piece = subtract(piece, slot_left)
piece = subtract(piece, slot_right)

pieces = move(piece, -size+spacing, -size+spacing)

x=[]
jump = -size+spacing;
for i in range(0,dim):
    x.append(jump)
    jump = jump + square_size + spacing

for i in x:
    for j in x:
        pieces = add(pieces, move(piece,i,j))
   
cad.function = pieces