If that succeeds in finding a valid zombie spawning point, the siege is started at the chosen starting point. If a valid siege starting point is found, a location is chosen (as described below) as if to spawn one zombie. If all ten attempts fail, the entire siege attempt fails, but another siege may be attempted on the next game tick. The Y value of the chosen point is that of the center of the village.

Ten attempts are made to choose a random siege starting point on a circle with a radius 0.9 times that of the village's size centered upon a village that is not within the bounds of any other village. If the candidate village has fewer than 10 beds, fewer than 20 villagers, or the village has not been 'stable' (no beds added or removed) for at least 20 ticks (1 second), the next player's village is considered. In other words, the player must essentially be within the village for a siege to be considered. For each player, the village with the center nearest to that player is a candidate for a siege when the player is less than the village's size + 1 blocks away from the center (by euclidean distance). However, inclement weather can allow siege start attempts to continue well past dawn since it reduces the sky light level.Д®ach village has a center, a claimed bell placed in the village's boundary. Specifically, the siege attempt is abandoned when the sky light level reaches 12. If a siege is to occur, attempts are made each tick to start the siege until either a siege is successfully started or the sun rises. At midnight each night (tick 18000 in Minecraft time), there is a 10% chance for the game to attempt a zombie siege that night.

Minecraft zombie craft mod