How do I make the player move once and then stop for a bit when it reaches a 'Tile'

Question

class TileModel:
pixel = 64
gap = 5
x1 = 400
x2 = x1 + pixel + gap
x3 = x2 + pixel + gap
x4 = x3 + pixel + gap
x5 = x4 + pixel + gap
x6 = x5 + pixel + gap
x7 = x6 +