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Chess: Return empty table if no possible moves

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Wuzzy 2023-07-11 13:47:25 +02:00
parent 528eafb669
commit 5f9601300c
1 changed files with 6 additions and 2 deletions
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8
src/chess.lua
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@ -54,7 +54,9 @@ local piece_values = {
local function get_possible_moves(board, from_idx) local function get_possible_moves(board, from_idx)
local piece, color = board[from_idx]:match(":(%w+)_(%w+)") local piece, color = board[from_idx]:match(":(%w+)_(%w+)")
if not piece then return end if not piece then
return {}
end
local moves = {} local moves = {}
local from_x, from_y = index_to_xy(from_idx) local from_x, from_y = index_to_xy(from_idx)
@ -415,7 +417,9 @@ local function get_possible_moves(board, from_idx)
end end
end end
if not next(moves) then return end if not next(moves) then
return {}
end
for i in pairs(moves) do for i in pairs(moves) do
local stack_name = board[tonumber(i)] local stack_name = board[tonumber(i)]