Project Atmosphere: Realistic Climate & Weather

Project Atmosphere

Changed

• Reworked wind handling across the mod to remove inconsistencies and ensure all systems use the same wind source and direction convention.
• Wind particles now sample wind every tick at their own position and smoothly steer toward it, producing real bending instead of straight trajectories.
• Player wind influence now uses Weather2-style steering applied after input, with a noticeable effect only above 11.1 m/s.
• Non-player living entities use a separate steering path with optional gust blending and higher drift caps.
• Wind direction vectors are now consistent across particles, entity forces, and SimpleClouds cloud drift.
• Cloud regions now apply a stable per-cloud direction bias plus slow wobble and slight speed variance to reduce apparent stacking.
• Temperature clamping now logs a debug warning with context and stack trace to track runaway sources.
• Server commands are now registered under the /pa root (for example /pa temperature and /pa spawnTornado).
• Wind-driven neighbor mixing now clamps its factors and deltas to stop runaway temperature spikes from spreading.
• Added weather snapshot and world-effects hooks, including rain-driven fire/campfire extinguish, cauldron filling, and dense-cloud sunburn suppression.
• Region fallback generation now ensures biome keys are present and regenerates any regions that contain only min/max clamp values.
• Wind steering now ramps near the threshold so low winds no longer slow the player.
• World effects skip sampling when no rain is present and no custom effects are registered, reducing tick load.
• Wind drift now applies as a directional add without reducing existing player speed.
• Player wind now uses intermittent gust impulses (no conveyor steering), with configurable thresholds and caps.
• Wind particle steering now caches region wind samples per tick to reduce client overhead.
• Client cloud culling now uses a single pass per tick to avoid quadratic scans.
• Creative/spectator players are immune to wind gusts, and gust impulses no longer reduce current player speed.
• Sprinting players now ignore gusts unless winds reach extreme thresholds.
• Surface wind now comes from the low-wind layer and no longer treats gust headroom as baseline speed.
• Reduced default wind push scales and player gust caps by ~3x for gentler movement impact.
• Thermometer now syncs the client day-forecast temperature so it no longer shows the 0.5 fallback.
• Instrument readouts now use server-side values in multiplayer instead of showing default client fallbacks.
• Storm sirens now play the severe-storm sound only once per continuous storm event.

Fixed

• Fixed a wind particle crash.
• Fixed wind speed being far too low due to a unit mismatch in the wind equation (hPa vs Pa), which was suppressing the computed wind magnitude.
• Fixed a 90° wind direction offset caused by inconsistent sin/cos mapping between systems.
• Fixed wind fallback behavior and cleaned up wind selection usage to reduce edge-case inconsistencies.
• Wind forces now respect exposure, skipping entities in water or lava, under cover, or colliding horizontally.

Notes

• Storms have been observed spawning again in testing (cumulus clouds and a wall cloud), so storm generation appears to be working correctly.
• Please report any unusual wind behavior, particle issues, or storm spawning problems so I can continue monitoring and tuning.