Using WorldEdit

When to Use WorldEdit vs Schematics

Task Use WorldEdit Use build_schematic

Flatten terrain ✅ //set grass

Fill large area ✅ //set stone

Spheres, cylinders ✅ //sphere , //cyl

Copy/paste ✅ //copy , //paste

Terrain smoothing ✅ //smooth

Pattern fills ✅ 50%stone,50%cobble

Structures with doors

✅

Stairs, oriented blocks

✅

Fine detail work

✅

Precise block states

✅

Rule of thumb: WorldEdit for bulk/terrain, Schematics for detailed structures.

WorldEdit via Client Bridge

Commands execute as the local player through the Fabric client bridge.

Key Rules:

• ✅ Use // prefix for WorldEdit commands

• ✅ Comma-separated coordinates: //pos1 100,64,200

• ❌ Never use execute as wrappers

• ⛔ NEVER teleport the player

Selection Commands

//pos1 100,64,200 # First corner //pos2 120,80,220 # Second corner //expand 5 up # Expand up //expand vert # Full height //contract 3 north # Shrink from north //shift 10 east # Move selection //inset 2 # Shrink all sides //outset 3 # Expand all sides //sel cuboid|sphere|cyl|poly # Selection mode //size # Show size

Region Commands

//set stone # Fill selection //set 50%stone,50%cobblestone # Random mix //replace dirt grass_block # Replace blocks //walls stone # Only walls //faces stone # All 6 faces //hollow # Remove interior //move 10 up # Move selection //stack 5 north # Stack copies

Generation Commands

//sphere stone 10 # Solid sphere r=10 //hsphere stone 10 # Hollow sphere //cyl stone 5 10 # Cylinder r=5 h=10 //hcyl stone 5 10 # Hollow cylinder //pyramid stone 15 # Pyramid //generate stone (xx+yy+z*z)<100 # Expression

Terrain Commands

//smooth 3 # Smooth terrain //naturalize # Add dirt/stone layers //flora 10 # Add flowers/grass //forest 20 oak # Generate forest //drain 10 # Remove water/lava //fixwater 10 # Fix water flow

Clipboard Commands

//copy # Copy selection //cut # Copy + clear //paste # Paste at player //paste -a # Paste, skip air //rotate 90 # Rotate clipboard //flip north # Mirror clipboard

Patterns

stone # Single block 50%stone,50%cobblestone # Random percentage oak_stairs[facing=north] # With block state

Masks

-m stone # Only affect stone -m !air # Exclude air -m stone,cobble # Multiple blocks

Common Workflows

Terrain Prep for Building

build(commands=[ "//pos1 100,60,200", "//pos2 150,70,250", "//set grass_block", "//smooth 2" ], description="Flatten area")

Create Platform

build(commands=[ "//pos1 100,64,200", "//pos2 120,64,220", "//set stone_bricks" ], description="Stone platform")

Forest Generation

//pos1 100,64,200 //pos2 200,64,300 //forest oak 5

Large Sphere

//pos1 95,70,195 # Center - radius //pos2 115,90,215 # Center + radius //sphere stone 10

Using build() for WorldEdit

build(commands=[ "//pos1 100,64,200", "//pos2 120,80,220", "//set stone_bricks", "//walls oak_planks", "//hollow" ], description="Basic shell")

⛔ Commands That DON'T Work via RCON

Brushes (require player click):

❌ //br sphere stone 5 ❌ //br cyl stone 3 1 ❌ //brush smooth 3

Tool bindings (require held item):

❌ //tool tree ❌ //tool info

Alternatives for trees:

✅ //forest oak 5 # Selection-based ✅ //forestgen 50 oak 5 # Standalone

History

//undo # Undo last //redo # Redo //undo 5 # Undo 5 actions

After WorldEdit: Add Details with Schematics

Typical workflow:

• Use WorldEdit to prepare terrain and create bulk structure

• Use build_schematic() to add doors, stairs, furniture, details

Step 1: WorldEdit for bulk

build(commands=[ "//pos1 100,64,200", "//pos2 120,68,220", "//set oak_planks", "//hollow" ], description="House shell")

Step 2: Schematic for details

build_schematic( schematic={ "anchor": [100, 64, 220], # South wall "palette": { "Dl": "oak_door[facing=south,half=lower]", "Du": "oak_door[facing=south,half=upper]", "W": "oak_planks" }, "layers": [ {"y": 1, "grid": [["W", "Dl", "W"]]}, {"y": 2, "grid": [["W", "Du", "W"]]} ] }, description="Add door" )