From 1a515237afb7ad09353a65f5fbc6e98a7c29ce8e Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Sat, 22 Aug 2026 15:00:35 -0700
Subject: sim manager refactor

---
 src/sim/lib/force.rs | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

(limited to 'src/sim/lib')

diff --git a/src/sim/lib/force.rs b/src/sim/lib/force.rs
index 50b5c70..e8f7e90 100644
--- a/src/sim/lib/force.rs
+++ b/src/sim/lib/force.rs
@@ -6,20 +6,16 @@ use crate::sim::{
         cell::Cell,
         materials::{MaterialId, fire::FireCellView},
     },
-    cell_sim::world::World,
-    particle_sim::{ParticleManager, particle::Particle},
-    rb_sim::RbSimManager,
+    particle_manager::particle::Particle,
+    sim_manager::SimManager,
 };
 
 pub fn apply_explosion(
+    sim: &mut SimManager,
     centre: Vec2,
     radius: i32,
     force_offset: Vec2,
     force_multiplier: f32,
-    next_seqno: u64,
-    particle_manager: &mut ParticleManager,
-    world: &mut World,
-    rbsm: &mut RbSimManager,
 ) {
     let get_vel = |pos: Vec2| {
         let d = pos.distance(centre);
@@ -38,17 +34,18 @@ pub fn apply_explosion(
                 // if there's a cell, convert it to a particle
                 let pos = Vec2::new(centre.x + x as f32, centre.y + y as f32);
                 let ipos = pos.round().as_ivec2();
-                if let Some(cell) = world.get_cell_from_game_position(ipos.x, ipos.y) {
+                if let Some(cell) = sim.cell_manager.get_cell_from_game_position(ipos.x, ipos.y) {
                     let mut fire = Cell::from_material(MaterialId::Fire);
                     fire.set_ticks_lived(300);
-                    fire.match_parity(next_seqno);
+                    fire.match_parity(sim.cell_manager.seqno);
 
                     if cell.material == MaterialId::Void && random_range(0.0..1.0) > 0.5 {
                         if random_range(0.0..1.0) > 0.1 {
-                            world.set_cell_from_game_position(ipos.x, ipos.y, fire, false);
+                            sim.cell_manager
+                                .set_cell_from_game_position(ipos.x, ipos.y, fire, false);
                         } else {
                             let vel = get_vel(pos);
-                            particle_manager.particles.push(Particle::new(
+                            sim.particle_manager.particles.push(Particle::new(
                                 pos,
                                 vel,
                                 MaterialId::Fire,
@@ -56,10 +53,11 @@ pub fn apply_explosion(
                             ));
                         }
                     } else {
-                        world.set_cell_from_game_position(ipos.x, ipos.y, fire, false);
+                        sim.cell_manager
+                            .set_cell_from_game_position(ipos.x, ipos.y, fire, false);
                         if random_range(0.0..1.0) > 0.6 {
                             let vel = get_vel(pos);
-                            particle_manager.particles.push(Particle::new(
+                            sim.particle_manager.particles.push(Particle::new(
                                 pos,
                                 vel,
                                 cell.material,
-- 
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