What? reword what you are suggesting, it's hard to follow
Im pretty sure you can do this with an array though,
NPC Code:
if (created) {
tiles_block_array = {0012,3522,5475};
timeout = .05;
}
if (timeout) {
if (tiles[x,y] in tiles_block_array) {
dontblock;
}
timeout = .05;
}