From 69d57202aff3ebcb94c7239fe13f197f5e548fac Mon Sep 17 00:00:00 2001
From: core <core@coredoes.dev>
Date: Sun, 16 Apr 2023 15:50:22 -0400
Subject: [PATCH] add planetary constants

---
 server/src/main.rs            | 1 +
 server/src/orbit/constants.rs | 7 +++++++
 server/src/orbit/mod.rs       | 1 +
 server/src/planet.rs          | 3 ++-
 4 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 server/src/orbit/constants.rs
 create mode 100644 server/src/orbit/mod.rs

diff --git a/server/src/main.rs b/server/src/main.rs
index 2feec86b209054f7cf56d058b212cd189c652518..012e257a4414193bcd71884da2ed748e76f3557f 100644
--- a/server/src/main.rs
+++ b/server/src/main.rs
@@ -23,6 +23,7 @@ pub mod timer;
 #[macro_use]
 pub mod macros;
 pub mod planet;
+pub mod orbit;
 
 const SCALE: f64 = 1.0;
 
diff --git a/server/src/orbit/constants.rs b/server/src/orbit/constants.rs
new file mode 100644
index 0000000000000000000000000000000000000000..26366e1534c64f00d9b6b70c781cc6281ed83df0
--- /dev/null
+++ b/server/src/orbit/constants.rs
@@ -0,0 +1,7 @@
+pub const GAME_SCALE: f64 = 0.0001567865; // 1000 / EARTH_RADIUS_RL
+
+pub const EARTH_RADIUS_RL: f64 = 6_378_100.0;
+pub const EARTH_RADIUS: f64 = EARTH_RADIUS_RL * GAME_SCALE;
+
+pub const MOON_RADIUS_RL: f64 = 1_737_400.0;
+pub const MOON_RADIUS: f64 = MOON_RADIUS_RL * GAME_SCALE;
\ No newline at end of file
diff --git a/server/src/orbit/mod.rs b/server/src/orbit/mod.rs
new file mode 100644
index 0000000000000000000000000000000000000000..987b09fc8a97bf1fea08ba0ac006aae4affb489a
--- /dev/null
+++ b/server/src/orbit/mod.rs
@@ -0,0 +1 @@
+pub mod constants;
\ No newline at end of file
diff --git a/server/src/planet.rs b/server/src/planet.rs
index 9d3f2a66df650ee5781d9326f5cabe2dc68e43d6..ef7809b0ae3d320f7e29716c74a4e28606e0c9ce 100644
--- a/server/src/planet.rs
+++ b/server/src/planet.rs
@@ -3,6 +3,7 @@ use rapier2d_f64::prelude::{RigidBodyHandle, RigidBodySet, ColliderBuilder, Rigi
 use starkingdoms_protocol::planet::PlanetType;
 
 use crate::{SCALE, manager::ClientHandlerMessage};
+use crate::orbit::constants::EARTH_RADIUS;
 
 //const GRAVITY: f64 = 0.001;
 const GRAVITY: f64 = 12.6674;
@@ -58,7 +59,7 @@ impl Planets {
             &mut planets,
             PlanetType::Earth,
             4000.0,
-            1000.0,
+            EARTH_RADIUS,
             (100.0, 100.0),
             rigid_body_set,
             collider_set,