Many well-known mods make it easier to break blocks (hammers, quarries, veinminer), but not many focus on placing them. Even the most experienced players still often place blocks one by one. This mod makes building easier by providing tools like mirrors, arrays, build modes and a block randomizer.

• Mirror blocks in realtime
• Build repeated sections quickly using arrays
• Place random blocks using the Randomizer Bag
• Quickly replace existing blocks (toggle with a key press)
• All of the above works in synergy
• Works in survival and creative mode

Switch build modes by holding ALT.

Build Modes

Hold ALT to switch build modes. On the left side there are buttons for undo/redo, opening the modifier settings and toggling QuickReplace (see below). On the right side there are options for each build mode, like a filled vs hollow wall, or faster building in Normal+.

Build modes:

• Normal: vanilla placement
• Normal+: increased reach
• Line: place lines of blocks in any 3 axis
• Wall: place walls with locked x or z axis
• Floor: place 'walls' with locked y axis
• Diagonal Line: place freeform lines of blocks
• Diagonal Wall: place walls at any angle
• Slope Floor: place slopes at any angle
• Cube: place cubes with 3 clicks
• Circle: place blocks in a circle (ellipse)
• Cylinder: place a cylindrical shape like a tower
• Sphere: place a spheroid made of cubes

Build Modifiers

Open modifier settings with the + key on the numpad, or click the button in the ALT menu.

Build modifiers:

• Mirror
• Array
• Radial Mirror

Mirror

Mirror blocks in realtime, as you place them. Works with even and uneven builds (add .5 to the position). Rotates blocks like stairs, logs, slabs, pistons etc properly.

Set position, radius (size) and what axes to mirror by pressing the + key on the numpad.

Array

The array modifier copies your build in a certain direction a certain number of times. Very useful for nether tunnels but also useful for quickly building walls etc.

It is possible to add offset to multiple directions so diagonal builds are possible (e.g. a nether tunnel that goes upwards or sideways). And of course breaking blocks is also supported for if you make a mistake.

Set offset and count by pressing the + key on the numpad.

Radial Mirror

The radial array lets you place blocks in a circle around a certain point. The circle can be divided into slices, and each slide will copy your block placements.

I heard you liked mirrors, so I put mirrors in your radial mirror. Mirror every other slice by enabling alternative mode.

Set position, slices, radius and alternative mode by pressing the + key on the numpad.

Randomizer Bag

Put blocks in the bag, then rightclick to place a random block from the bag. Adjust ratios by filling slots with the same block (e.g. 2 slots cobble + 1 slot stone makes for a 2:1 ratio). Handy for building walls and paths with variation. Combine with array and QuickReplace for super easy path building.

Crafting recipe:

Survival-friendly

Playing this mod in survival mode is fully supported. When playing in survival mode:

• All actions consume the right amount of blocks.
• You have to use the appropriate tool to break blocks.
• This correctly damages the tool based on how many blocks are broken.
• Replacing only works on blocks that can be harvested by hand (changeable in config).
• Mining speed is increased for each additional block mined (change percentage in config).

Explanation video:

Recommended: use Magic Feather to get flight while building. 

QuickReplace

Reach

Miscellaneous

Toggle between creative and survival mode by pressing a key. By default not bound, I recommend binding it to F4 if you want to use it.

FAQ

"Can I add this mod to my modpack?"

Yes.

"Is this a client-side only mod?"

No, it needs to be installed on both server and client. The server part places all the blocks and verifies the players input.

"Am I allowed to make my own version of this mod?"

Yes, as long as you comply with the LGPL-3.0 license (usually this means: link to this page, license your modification under LGPL-3.0, make the code visible and state significant changes).

Mod Spotlights

Credits

Radial Menu from Chisels and Bits by AlgorithmX2

Build Modes inspired by Linear by Tschipp