Add MoveList implementation

src/Chess/moves.nim

@@ -24,6 +24,39 @@ type
         targetSquare*: Square
         flags*: uint16
 
+    MoveList* = object
+        ## A list of moves
+        data: array[218, Move]
+        len: int8
+
+
+iterator items*(self: MoveList): Move =
+    var i = 0
+    while self.len > i:
+        yield self.data[i]
+        inc(i)
+
+
+iterator pairs*(self: MoveList): tuple[i: int, move: Move] =
+    var i = 0
+    for item in self:
+        yield (i, item)
+
+
+func add*(self: var MoveList, move: Move) {.inline.} =
+    self.data[self.len] = move
+    inc(self.len)
+
+
+func contains*(self: MoveList, move: Move): bool {.inline.} =
+    for item in self:
+        if move == item:
+            return true
+    return false
+
+
+func len*(self: MoveList): int {.inline.} = self.len
+
 
 func createMove*(startSquare, targetSquare: string, flags: seq[MoveFlag] = @[]): Move =
     result = Move(startSquare: startSquare.algebraicToSquare(),