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Coding workflows · Blocked diagonal board rays
03
A concrete starting point
Trace four diagonal rays from one of 64 board squares through an unsigned 64-bit occupancy mask. Test corners and immediate blockers, including the first blocker but rejecting invalid integers without claiming complete move legality.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Blocked diagonal board rays
A concrete starting point
def diagonal_rays(square, occupied):
if type(square) is not int or not 0 <= square < 64 or type(occupied) is not int or not 0 <= occupied < 2**64:
raise ValueError("rays.input")
row, column = divmod(square, 8)
result = 0
for dr, dc in ((1, 1), (1, -1), (-1, 1), (-1, -1)):
r, c = row+dr, column+dc
while 0 <= r < 8 and 0 <= c < 8:
bit = 1 << (8*r+c)
result |= bit
if occupied & bit:
break
r, c = r+dr, c+dc
return result
The example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.