Bug fix

app.rb

@@ -3,7 +3,7 @@ require "gosu"
 load "physobj.rb"
 
 class Window < Gosu::Window
-	attr_accessor :freeze, :caption, :physobjs, :planets, :controller
+	attr_accessor :freeze, :caption, :physobjs, :planets, :controller, :camera
 	attr_reader :width, :height, :fonts
 
 	def initialize(title, width, height, physobjs = [], planets = [])
@@ -24,6 +24,8 @@ class Window < Gosu::Window
 
 		@freeze = false
 		@controller = nil
+
+		@camera = Vector[width/2, height/2]
 	end
 
 	def button_up(id)

physobj.rb

@@ -21,6 +21,8 @@ class PhysObj
 	end
 
 	def tick
+		@x, @y = @pos[0], @pos[1]
+		@angle %= 360
 		if( !world.freeze ) then
 			if( @accel.magnitude != 0 ) then
 				@vel += @accel
@@ -29,8 +31,6 @@ class PhysObj
 			if( @vel.magnitude != 0 ) then
 				@pos += @vel
 			end
-			@x, @y = @pos[0], @pos[1]
-			@angle %= 360
 			@saved_pos << @pos
 
 			while(@saved_pos.length > MAX_PATH_TRACK_POINT) do
@@ -162,7 +162,7 @@ class Player < PhysCube
 	def tick
 		super
 
-		if( @engine ) then
+		if( @engine && !self.world.freeze ) then
 			self.vel += self.get_angle_vec * @thrust
 		end
 	end