From 0e18067024b7d34bf96db4bb9ab0cd44b0247481 Mon Sep 17 00:00:00 2001
From: hut <hut@hut.pm>
Date: Tue, 2 Apr 2024 05:41:12 +0200
Subject: [PATCH] tweaking asteroids

---
 src/world.rs | 33 ++++++++++++++++++++-------------
 1 file changed, 20 insertions(+), 13 deletions(-)

diff --git a/src/world.rs b/src/world.rs
index b437d9b..e6850c3 100644
--- a/src/world.rs
+++ b/src/world.rs
@@ -14,7 +14,7 @@ const STARS_MAX_MAGNITUDE: f32 = 5.5;
 const CENTER_WORLD_ON_PLAYER: bool = true;
 
 const ASTEROID_SPAWN_STEP: f64 = 500.0;
-const ASTEROID_VIEW_RADIUS: f64 = 1000.0;
+const ASTEROID_VIEW_RADIUS: f64 = 3000.0;
 
 const ASSET_ASTEROID1: &str = "models/asteroid.glb#Scene0";
 const ASSET_ASTEROID2: &str = "models/asteroid2.glb#Scene0";
@@ -193,6 +193,7 @@ fn spawn_despawn_asteroids(
         (player.z / ASTEROID_SPAWN_STEP).round() as i64,
     );
     let mut spawned = 0;
+    let mut spawned_near = 0;
     let mut despawned = 0;
 
     // Parameters
@@ -245,31 +246,37 @@ fn spawn_despawn_asteroids(
                 }
 
                 // generate some deterministic pseudorandom numbers seeded with the origin coordinates
+                let rand_s = (4.0*((origin.x+origin.y+origin.z) as f64).sin()
+                            + 3.0*((origin.x+origin.y+origin.z) as f64).cos()).abs() % 1.0;
+                let size: f32 = (rand_s + 1e-6).powf(-0.5) as f32; // -> between ~1 and 1000
+
+                if rand_s > 0.7 {
+                    let dist = player_cell.as_dvec3().distance(origin.as_dvec3());
+                    if dist > 4.0 {
+                        continue;
+                    }
+                    spawned_near += 1;
+                }
+
                 let rand_x = (4.0*((origin.x+origin.y) as f64).sin()
                             + 3.0*((origin.y+origin.z) as f64).cos()) % 1.0;
                 let rand_y = (4.0*((origin.y+origin.z) as f64).sin()
                             + 3.0*((origin.z+origin.x) as f64).cos()) % 1.0;
-                let rand_z = (4.0*((origin.z+origin.x) as f64).sin()
-                            + 3.0*((origin.x+origin.y) as f64).cos()) % 1.0;
-                let rand_s = (4.0*((origin.x+origin.y+origin.z) as f64).sin()
-                            + 3.0*((origin.x+origin.y+origin.z) as f64).cos()).abs() % 1.0;
+                let rand_z = (40.0*((origin.z+origin.x) as f64).sin()
+                            + 30.0*((origin.x+origin.y) as f64).cos()) % 1.0;
                 let rand_c = (8.0*((origin.x+origin.z) as f64).sin()
                             + 4.0*((origin.x+origin.z) as f64).cos()).abs() % 1.0;
                 let class = if rand_c < 0.5 { 0 } else { 1 };
 
-                //if player_cell.as_dvec3().distance(origin.as_dvec3()) > asteroid.viewdistance
                 //let max_viewdist = ASTEROID_VIEW_RADIUS / ASTEROID_SPAWN_STEP;
-                let size: f32 = (rand_s + 1e-6).powf(-0.5) as f32; // -> between ~1 and 1000
                 let wobble = ASTEROID_SPAWN_STEP * 0.3;
                 let pos = DVec3::new(
-                    origin.x as f64 * ASTEROID_SPAWN_STEP + wobble * rand_x,
-                    origin.y as f64 * ASTEROID_SPAWN_STEP + wobble * rand_y,
-                    origin.z as f64 * ASTEROID_SPAWN_STEP + wobble * rand_z,
+                    origin.x as f64 * ASTEROID_SPAWN_STEP + wobble * rand_x * 2.0 - 1.0,
+                    origin.y as f64 * ASTEROID_SPAWN_STEP + wobble * rand_y * 2.0 - 1.0,
+                    origin.z as f64 * ASTEROID_SPAWN_STEP + wobble * rand_z * 2.0 - 1.0,
                 );
-                dbg!(pos);
 
                 // Spawn
-                dbg!(pos, origin, size);
                 let mut entity_commands = commands.spawn((
                     actor::Actor::default(),
                     RigidBody::Dynamic,
@@ -301,7 +308,7 @@ fn spawn_despawn_asteroids(
         }
     }
     if spawned != 0 || despawned != 0 {
-        log.notice(format!("spawned: {spawned}, despawned: {despawned}"));
+        log.notice(format!("spawned: {spawned} (near: {spawned_near}), despawned: {despawned}"));
     }
 }