Eye Cross

When a player throws two Eyes of Ender along lines that intersect, the mod records each flight trajectory and computes where the lines cross, then shows the Stronghold coordinates in chat with an error estimate. Throwing one eye still gives a rough answer: the mod places the player on the Stronghold ring distribution of 128 Strongholds across 8 rings centered on the origin, and marks the horizontal ring that contains the approximate area.

Each throw is recorded from the client tick by logging the x and z position of the flying Eye entity. The entire trajectory is fitted to a straight line with total least squares, using principal component analysis, and the mod keeps the latest 12 trajectories, so more throws give a more accurate intersection. Once the solution is precise, a highlighted marker shows the estimated location in the world, and a click teleports the player there with a single run of the teleport command.

Eye Cross requires Fabric API alongside Fabric Loader. Xaero's Minimap is optional: when it is installed alongside the mod, the mod adds the Stronghold coordinates as a waypoint named Stronghold, marked with a green EC S icon on the minimap, world map and waypoint menu. The waypoint is overwritten when an updated solution with the same ID is found. The mod is released under the MIT License and is open source.