Physics Lite Extras

Quickstart

1. Load a world with the mod installed — physics effects begin working immediately with no setup required.
2. Chop down a tree to watch logs collapse, tumble outward, and loosen the canopy leaves above.
3. Dig near a sand or gravel hillside to trigger a cascading avalanche of granular blocks.
4. Seal yourself in a room and notice your oxygen draining — place an Air Pump next to an opening to the outside to keep the air breathable.
5. Press R at any time to toggle ragdoll mode and experience fully physical player movement.

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Overview

Physics Lite Extras brings lightweight but impactful physics simulation to Minecraft. Trees fall realistically, loose materials avalanche, water behaves under pressure, and sealed rooms consume oxygen. Several systems are toggleable via commands, letting you dial in exactly how physical you want your world to feel.

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What It Adds

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How To Use

Tree Physics

Break the base of a tree and the logs above will become falling block entities, tumbling outward. Leaf blocks in the canopy are loosened by the collapse.

Granular Avalanches

Sand, gravel, and concrete powder will cascade when a supporting block is removed nearby. Avalanches can spread several blocks in radius, so mind your footing.

Water Pressure

Water trapped in enclosed pockets will push outward, searching for an escape route. Weak materials — dirt, mud, clay, sand, gravel, farmland, snow, and torches — can be broken by this pressurized flow.

Boiling Water

Water blocks located within a couple of blocks of a heat source (such as lava, fire, or a furnace) will gradually heat up. After sustained exposure, the water will begin to evaporate.

Oxygen System

In a fully sealed room, the available oxygen depletes at a rate of 18 oxygen per second. Oxygen is tracked per enclosed space (up to 2,048 nodes scanned per room, radius up to 18 blocks). If oxygen runs out, players inside will suffer. Place an Air Pump adjacent to at least one open-air block to continuously replenish the room's oxygen.

Waterfall Splash

When water falls 4 or more blocks, the landing point generates repeating splash, bubble, and mist particles, plus a looping splash sound audible within 4 blocks. This effect is disabled by default.

Ragdoll Mode

When ragdoll mode is active, the player is subject to full physics movement — gravity drags them down, momentum carries them forward, and the camera tumbles and spins based on speed. It's fun for freefall and roleplaying but will get you killed in combat if you're not careful.

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Crafting And Obtaining

Air Pump

The Air Pump is a solid, iron-tier block that must be mined with a pickaxe to retrieve. Craft it at a crafting table:

(3×3 shaped recipe: iron ingots fill the top and bottom rows; redstone in the left and right middle slots; furnace in the center)

No recipe shortcodes are available for this mod, but the ingredients are: 6 Iron Ingots + 2 Redstone + 1 Furnace.

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Abilities And Mechanics

Air Pump Placement

Place the Air Pump so that at least one of its six faces is directly adjacent to an open-air block (a block exposed to the sky or connected to the outside). Only then will it pump fresh air into the sealed room. A pump surrounded entirely by solid blocks or deep underground with no air connection will not function.

Ragdoll Physics Details

• Gravity: Constant downward pull while ragdoll is active.
• Air drag: Slight resistance slows movement over time.
• Camera: Yaw and pitch oscillate dynamically based on movement speed, giving a tumbling visual effect.
• Ragdoll does not prevent fall damage — be careful on high terrain.

Waterfall Splash Details

• Triggers when water descends 4 or more blocks continuously.
• Emits splash, bubble, and mist particles at the base of the fall every 2 ticks.
• Plays a looping splash sound every 8 ticks within a 4-block radius.
• The effect clears automatically when the water flow stops.

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Progression And Strategy

Early game: The biggest immediate hazard is avalanches. When mining near sand or gravel, always look up and support your tunnels. Water pressure breaking your torches mid-mine is another early annoyance — keep torches away from water sources.

Mid game: Start thinking about base design. If you're building enclosed underground bunkers or hermetically sealed structures, include an Air Pump with a path to open air, or you'll asphyxiate. One pump per sealed section is sufficient as long as it touches open air.

Boiling hazard: Don't build water features directly adjacent to lava pools or large furnace arrays — your decorative pools may evaporate over time (about 1 minute of sustained heat exposure before evaporation begins).

Ragdoll exploration: Toggle ragdoll mode (R) for fun on mountain slopes or during elytra flights, but disable it before entering combat.

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Commands Reference

Pressing R in-game is a shortcut for /physicslite ragdoll and works without opening chat.