Physics Lite

Quickstart

Physics Lite works automatically from the moment it is installed — no crafting or setup required. Just load into a world and start interacting with it:

1. Chop a tree — break a log near the base and watch the remaining trunk and branches collapse into tumbling falling logs that push outward, loosening canopy leaves as they go.
2. Disturb a sand or gravel pile — break a block supporting a column of sand, gravel, red sand, or concrete powder and watch an avalanche cascade and slide outward.
3. Dig near a water pocket — remove a weak block (dirt, mud, clay, sand, gravel, farmland, snow, or a torch) that is holding back pressurized water and watch the water burst through.
4. Press R to enter ragdoll mode — your character immediately goes prone, tumbles, bounces, and slides. Press R again to stand back up.

Overview

Physics Lite adds three passive environmental physics systems and one player-controlled ragdoll mode. Everything runs in the background; the world simply behaves more realistically. All systems can be inspected or toggled at any time with the built-in command interface.

What It Adds

How To Use

Environmental Physics

The tree, avalanche, and water pressure systems activate automatically whenever you interact with the world. No special tools or items are needed. Simply mine, build, or dig as normal and the physics will respond.

Ragdoll Mode

• Keyboard: Press R (while no menu is open) to toggle ragdoll on or off.
• Command: Run /physicslite ragdoll to toggle ragdoll mode from the chat.
• While ragdoll is active, your character collapses into a prone/swimming-style pose and is driven by physics — you will tumble, spin, bounce off surfaces, and slide down slopes.
• In first person, the camera dynamically follows your head's rotation, giving you the full dizzying tumbling experience.
• Press R again (or run the command again) to exit ragdoll and return to normal movement.

Managing the Physics Systems

Use the /physicslite command to inspect and control each system:

Abilities And Mechanics

Tree Collapse

When any log in a tree is broken, the mod checks for connected logs above it. Those logs convert into falling block entities that have outward momentum applied, simulating a realistic topple. As the logs fall, attached leaf blocks are loosened and begin to drop as well. The effect is most dramatic when you cut the base of a tall tree.

Granular Avalanches

Affected block types — sand, red sand, gravel, and concrete powder — do not simply fall straight down when unsupported. Instead, the physics system spreads them outward in a cascading avalanche, filling in adjacent lower spaces the way real granular materials would flow.

Water Pressure

When a body of water is fully enclosed, the mod treats it as pressurized. If a weak block forms part of the enclosure, the water can break through it. Weak blocks subject to this include: dirt, mud, clay, sand, gravel, farmland, snow layers, and torches. Digging near underground water pools or building imperfect dams can trigger a sudden breach.

Ragdoll Camera

While ragdoll mode is active in first person, the camera yaw and pitch are driven by your movement speed and a rolling physics simulation. Faster movement creates faster spinning and more dramatic pitch oscillation, so sliding down a steep hill will feel very different from gently rolling on flat ground.

Progression And Strategy

• Early game: The avalanche and water pressure systems make caving and digging more hazardous. Listen for shifting blocks and be cautious when digging below water sources or into sand/gravel formations.
• Tree farming: Tree collapse makes deforestation faster — cut the bottom log and let physics do the rest — but be careful of falling logs pushing outward into you or your structures.
• Water engineering: When building dams, aqueducts, or underground water features, use strong materials (stone, wood planks, bricks, etc.) for walls. Dirt or sand walls may breach under pressure.
• Ragdoll fun: Use ragdoll mode on slopes, water slides, or uneven terrain for a chaotic, physics-driven ride. It can also be a handy way to fall safely down long drops since your momentum spreads across the tumble.