player can move between orbits and free movement

src/main.lua

@@ -236,8 +236,14 @@ function love.update(dt)
 
   if player_ship.velocity_x == 0 and player_ship.velocity_y == 0 then
     player_ship.orbital_radius = player_ship.orbital_radius or math.sqrt(player_ship.position_x^2 + player_ship.position_y^2)
-    player_ship.rotation_offset = player_ship.rotation_offset or math.atan2(player_ship.position_y, player_ship.position_x) -- this will fail due to not being at timestep 0
-    -- might be fixable by computing where the game thinks the player should be and then adjusting it by where they are
+    if not player_ship.rotation_offset then
+      -- TEMP still locked to core_object
+      local argument = game_time / player_ship.orbital_radius^1.337 * orbital_speed_constant * core_object.radar_size^2
+      if (argument == math.huge) or (argument ~= argument) then
+        argument = 0
+      end
+      player_ship.rotation_offset = math.atan2(player_ship.position_y, player_ship.position_x) - argument
+    end
 
     -- TEMP player_ship localed to core_object orbit
     local argument = game_time / player_ship.orbital_radius^1.337 * orbital_speed_constant * core_object.radar_size^2 + player_ship.rotation_offset