def render(self, cube, projection='default'):
""" Render ourself. """
colors = (None, 'red', 'green', 'blue', 'white', 'yellow', 'orange')
normals = [(0, 0, 1), (-1, 0, 0), (1, 0, 0), (0, -1, 0), (0, 1, 0), (0, 0, -1)]
offsets = [(0, 0), (-4, 0), (4, 0), (0, -4), (0, 4), (8, 0)]
height, width = self.screen.getmaxyx()
x_offset, y_offset = int(width/2) - 1, int(height/2) - 1
if projection == 'default':
normals = normals[:1] # Only render the first normal
for normal, offset in zip(normals, offsets):
for sticker in cube.stickers:
if sticker.is_visible(normal):
angle = algebra.angle_between_vectors(normal, self.view_normal)
perp = algebra.cross_product(normal, self.view_normal)
if perp != (0, 0, 0):
rotation_axis = perp.index(1) if 1 in perp else perp.index(-1)
sign = 1 if 1 in perp else -1
new_coords = algebra.rotation(sticker.coords, rotation_axis, theta=angle, sign=sign)
x, y, z = new_coords
else:
x, y, z = sticker.coords
i = int(x + x_offset + offset[0])
j = int(y + y_offset + offset[1])
pair_number = colors.index(sticker.color)
self.screen.attron(curses.color_pair(pair_number))
self.screen.addstr(j, i, u'\u2588'.encode(self.encoding))
self.screen.attroff(curses.color_pair(pair_number))
def rotate(self, axis, sign=1):
""" Rotate this sticker in 3D space about the origin. """
self.normal = algebra.rotation(self.normal, axis, sign=sign)
self.coords = algebra.rotation(self.coords, axis, sign=sign)