Slower plasma fire and temperature decay (#28171)

* Slower plasma fire and temperature decay

* Build Rust library

* Build Rust library

* Build Rust library

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Co-authored-by: paradisess13[bot] <165046124+paradisess13[bot]@users.noreply.github.com>

rust/src/milla/constants.rs

@@ -120,7 +120,7 @@ pub(crate) const PLASMA_BURN_MIN_TEMP: f32 = 100.0 + T0C;
 pub(crate) const PLASMA_BURN_OPTIMAL_TEMP: f32 = 1370.0 + T0C;
 
 /// How much of the plasma are we willing to burn each tick?
-pub(crate) const PLASMA_BURN_MAX_RATIO: f32 = 0.05;
+pub(crate) const PLASMA_BURN_MAX_RATIO: f32 = 0.01;
 
 /// How much of the plasma do we burn anyway if the ratio would make it really small?
 pub(crate) const PLASMA_BURN_MIN_MOLES: f32 = 0.001;
@@ -148,10 +148,10 @@ pub(crate) const TEST_TOLERANCE: f32 = 0.1;
 pub(crate) const SPACE_COOLING_THRESHOLD: f32 = T20C;
 
 /// Lose this amount of heat energy per tick if above SPACE_COOLING_THRESHOLD.
-pub(crate) const SPACE_COOLING_FLAT: f32 = 2000.0;
+pub(crate) const SPACE_COOLING_FLAT: f32 = 200.0;
 
-/// Lose this ratio of heat energy per tick if above SPACE_COOLING_THRESHOLD.
-pub(crate) const SPACE_COOLING_RATIO: f32 = 0.002;
+/// Lose this ratio of heat energy per Kelvin per tick if above SPACE_COOLING_THRESHOLD.
+pub(crate) const SPACE_COOLING_TEMPERATURE_RATIO: f32 = 0.4;
 
 /// Tiles with less than this much gas will become empty.
 pub(crate) const MINIMUM_NONZERO_MOLES: f32 = 0.1;

rust/src/milla/simulate.rs

@@ -681,7 +681,7 @@ pub(crate) fn apply_tile_mode(
             if my_next_tile.temperature() > SPACE_COOLING_THRESHOLD {
                 let excess_thermal_energy = my_next_tile.thermal_energy
                     - SPACE_COOLING_THRESHOLD * my_next_tile.heat_capacity();
-                let cooling = (SPACE_COOLING_FLAT + SPACE_COOLING_RATIO * excess_thermal_energy)
+                let cooling = (SPACE_COOLING_FLAT + SPACE_COOLING_TEMPERATURE_RATIO * my_next_tile.temperature())
                     .min(excess_thermal_energy);
                 my_next_tile.thermal_energy -= cooling;
             }