South-east rule

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The south-east rule, also known as the Z-X rule, is an unintentional mechanic in Minecraft wherein various effects occur based on the cardinal directions, specifically in a south-east variant.

Effects[edit]

The following list contains effects that happen in Minecraft, relating to the south, east, or south-east cardinal directions.

Bookshelf Bookshelves contain North-South striations like planks, as well as 9 additional dark spots. Of these 5 are on the South side and create an "arrow" pointing North.
Brick The short horizontal stripes on this item are always running from East to West.
Cobblestone Cobblestone contains an "L" whose arms orient Northeast.
Diamond Ore This applies to all ores except Lapis Lazuli. On one edge are two "L" shaped structures with a distance of 1 pixel. This edge is pointing east.
Farmland Farmland contains 4 blue specks which orient Northeast.
Fence A fence post has a 4-pixel long brown strip; this strip is on the southmost part of the north half of the post's top.
Furnace This texture is like Cobblestone. It contains an "L" whose arms orient Northeast.
Gold Ore This applies to all ores except Lapis Lazuli. On one edge are two "L" shaped structures with a distance of 1 pixel. This edge is pointing east.
Gravel In one corner there is a light colored square with a distance of 1 pixel to the corner. This bright Point is pointing northeast.
Iron Ore This applies to all ores except Lapis Lazuli. On one edge are two "L" shaped structures with a distance of 1 pixel. This edge is pointing east.
Jukebox The slot is always directed from east to west.
Lapis Lazuli Block This contains one gray corner which is near a small "L" shape. This corner orients Northeast.
Rail When placing rail, they will favor linking to their North or East edges. An individually placed track will orient West-east.
Mossy Cobblestone Contains a similar "L" to cobblestone which orients Northeast.
Netherrack Contains a similar "L" to cobblestone which orients Northeast.
Obsidian Obsidian blocks contain one string of 3 diagonal light pixels. This orients East.
Redstone Ore This applies to all ores except Lapis Lazuli. On one edge are two "L" shaped structures with a distance of 1 pixel. This edge is pointing east.
Sand Sand, like dirt, contains one darkened corner which orients Northeast.
Sandstone Sandstone is hard to distinguish, but it contains one lightly colored square. This orients East.
Snow Snow contains one darkened edge, this orients South.
Snow Block Snow blocks, like snow, contain one darkened edge which orients South.
Sponge Sponge has a + shape that orients South.
TNT When ignited, it goes slightly to the north
Log It contains one lightened square which is oriented North.
Planks Planks contain North-South striations, as well as 9 additional dark spots. Of these 5 are on the South side and create an "arrow" pointing North.
Wooden Pressure Plate Wooden pressure plates contain North-South striations like planks, as well as 9 additional dark spots. Of these 5 are on the South side and create an "arrow" pointing North.
Stairs Wooden Stairs contain North-South striations, as well as 9 additional dark spots. Of these 5 are on the South side and create an "arrow" pointing North.

Others include:

  • Rails will curve south or east when they are initially placed at a "T" intersection or a "+" intersection. They will also curve away from the south or east when powered.
    • An exception to this is if there is an intersection on a downhill rail track, the minecart will continue the downhill track, even if the south-east rule applies. (see Rail#Downhill rule)
  • Any mobs that are spawned by spawn eggs, monster spawners, the player, or by breeding, will always appear to be facing the southern direction.
  • TNT cannons tend to fire farther when facing east or south. Designs that don't account for spread also exhibit horizontal drift eastward or southward as well.
  • Many bugs cause problems relating to south and east, such as villagers trying to cram into the house that is mostly in the southern-eastern area of the village. (Is this correct? All my villagers head towards the North-West corner when put in a grid of identical housing)
  • Levers oriented north or south will always have the off state facing south, and levers oriented east or west have the off state facing east.
  • When the player is exactly inside the middle of a block, they are pushed out of the block south-east.

History[edit]

Beta
1.6 Prevented dispensers from firing arrows, eggs, or snowballs through a solid block right next to the dispenser if the dispenser is facing west or south. At this time, this was known as the south-west rule, as at the time the positive X coordinate was west. This meant that any effects that now follow the south-east rule, followed the south-west rule at the time.
Official release
1.0.0 Beta 1.9 Prerelease 4 Changed the south-west rule to the south-east rule, as positive X was changed from west to east.

See also[edit]

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